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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_MULAW_TO_PCM16_HW_DEVICE_H__
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#define __MMF_MULAW_TO_PCM16_HW_DEVICE_H__
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#include <mmf/server/mmfswcodecwrapper.h>
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#include "MMFAudioCodecBase.h"
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#include "MMFAudioMuLawToS16PcmCodec.h"
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const TInt KMuLawToCM16SrcBufferSize = 0x1000;
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const TInt KMuLawToCM16SinkBufferSize = 0x2000;
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/*
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*
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* class CMMFMulawToPcm16CodecHwDevice
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*
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*/
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class CMMFMulawToPcm16CodecHwDevice : public CMMFSwCodecWrapper
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{
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public:
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static CMMFMulawToPcm16CodecHwDevice* NewL();
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virtual CMMFSwCodec& Codec();
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~CMMFMulawToPcm16CodecHwDevice();
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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 CMMFMulawToPcm16Codec coverts MuLaw to PCM
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*
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*/
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class CMMFMulawToPcm16Codec : 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 KMuLawToCM16SrcBufferSize;};
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virtual TUint SinkBufferSize() {return KMuLawToCM16SinkBufferSize;};
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private:
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TBool CheckPreconditions( const CMMFDataBuffer* aSrcBuffer, CMMFDataBuffer* aDestBuffer );
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TInt MulawSampleToPcm(TUint8 aAlaw);
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private:
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TMMFAudioMuLawToS16PcmCodec iMulawTo16Pcm;
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};
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#endif //__MMF_MULAW_TO_PCM16_HW_DEVICE_H__
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