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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_ALAW_TO_PCM16_HW_DEVICE_H__
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#define __MMF_ALAW_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 "MMFAudioALawToS16PcmCodec.h"
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const TInt KALawToCM16SrcBufferSize = 0x1000;
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const TInt KALawToCM16SinkBufferSize = 0x2000;
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/*
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*
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* CMMFAlawToPcm16CodecHwDevice
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*
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*/
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class CMMFAlawToPcm16CodecHwDevice : public CMMFSwCodecWrapper
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{
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public:
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static CMMFAlawToPcm16CodecHwDevice* NewL();
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virtual CMMFSwCodec& Codec();
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~CMMFAlawToPcm16CodecHwDevice();
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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 CMMFAlawToPcm16Codec coverts ALaw to PCM
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*
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*/
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class CMMFAlawToPcm16Codec : 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 KALawToCM16SrcBufferSize;};
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virtual TUint SinkBufferSize() {return KALawToCM16SinkBufferSize;};
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private:
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TBool CheckPreconditions( const CMMFDataBuffer* aSrcBuffer, CMMFDataBuffer* aDestBuffer );
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TInt AlawSampleToPcm(TUint8 aAlaw);
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private:
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TMMFAudioALawToS16PcmCodec iAlawTo16Pcm;
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};
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#endif //__MMF_ALAW_TO_PCM16_HW_DEVICE_H__
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