diff -r 000000000000 -r 79dd3e2336a0 devsound/devsoundrefplugin/src/plugin/audio/MmfALawToPcm16HwDevice.h --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/devsound/devsoundrefplugin/src/plugin/audio/MmfALawToPcm16HwDevice.h Fri Oct 08 19:40:43 2010 +0100 @@ -0,0 +1,61 @@ +/* +* Copyright (c) 2002-2003 Nokia Corporation and/or its subsidiary(-ies). +* All rights reserved. +* This component and the accompanying materials are made available +* under the terms of "Eclipse Public License v1.0" +* which accompanies this distribution, and is available +* at the URL "http://www.eclipse.org/legal/epl-v10.html". +* +* Initial Contributors: +* Nokia Corporation - initial contribution. +* +* Contributors: +* +* Description: +* +*/ + +#ifndef __MMF_ALAW_TO_PCM16_HW_DEVICE_H__ +#define __MMF_ALAW_TO_PCM16_HW_DEVICE_H__ +#include +#include +#include + +const TInt KALawToCM16SrcBufferSize = 0x1000; +const TInt KALawToCM16SinkBufferSize = 0x2000; + +/* +* +* CMMFAlawToPcm16CodecHwDevice +* +*/ +class CMMFAlawToPcm16CodecHwDevice : public CMMFSwCodecWrapper + { +public: + static CMMFAlawToPcm16CodecHwDevice* NewL(); + virtual CMMFSwCodec& Codec(); + ~CMMFAlawToPcm16CodecHwDevice(); +private: + void ConstructL(); + }; + +/* +* +* class CMMFAlawToPcm16Codec coverts ALaw to PCM +* +*/ +class CMMFAlawToPcm16Codec : public CMMFSwCodec + { +public: + virtual TCodecProcessResult ProcessL(const CMMFBuffer& aSource, CMMFBuffer& aDest); + virtual TUint SourceBufferSize() {return KALawToCM16SrcBufferSize;}; + virtual TUint SinkBufferSize() {return KALawToCM16SinkBufferSize;}; +private: + TBool CheckPreconditions( const CMMFDataBuffer* aSrcBuffer, CMMFDataBuffer* aDestBuffer ); + TInt AlawSampleToPcm(TUint8 aAlaw); +private: + TMMFAudioALawToS16PcmCodec iAlawTo16Pcm; + }; + +#endif //__MMF_ALAW_TO_PCM16_HW_DEVICE_H__ +