1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/os/mm/devsound/devsoundrefplugin/src/plugin/audio/MmfALawToPcm16HwDevice.h	Fri Jun 15 03:10:57 2012 +0200
     1.3 @@ -0,0 +1,61 @@
     1.4 +/*
     1.5 +* Copyright (c) 2002-2003 Nokia Corporation and/or its subsidiary(-ies).
     1.6 +* All rights reserved.
     1.7 +* This component and the accompanying materials are made available
     1.8 +* under the terms of "Eclipse Public License v1.0"
     1.9 +* which accompanies this distribution, and is available
    1.10 +* at the URL "http://www.eclipse.org/legal/epl-v10.html".
    1.11 +*
    1.12 +* Initial Contributors:
    1.13 +* Nokia Corporation - initial contribution.
    1.14 +*
    1.15 +* Contributors:
    1.16 +*
    1.17 +* Description:
    1.18 +*
    1.19 +*/
    1.20 +
    1.21 +#ifndef __MMF_ALAW_TO_PCM16_HW_DEVICE_H__
    1.22 +#define __MMF_ALAW_TO_PCM16_HW_DEVICE_H__
    1.23 +#include <mmf/server/mmfswcodecwrapper.h>
    1.24 +#include "MMFAudioCodecBase.h"
    1.25 +#include "MMFAudioALawToS16PcmCodec.h"
    1.26 +
    1.27 +const TInt KALawToCM16SrcBufferSize  = 0x1000;
    1.28 +const TInt KALawToCM16SinkBufferSize = 0x2000;
    1.29 +
    1.30 +/*
    1.31 +*
    1.32 +* CMMFAlawToPcm16CodecHwDevice 
    1.33 +*
    1.34 +*/
    1.35 +class CMMFAlawToPcm16CodecHwDevice : public CMMFSwCodecWrapper
    1.36 +	{
    1.37 +public:
    1.38 +	static  CMMFAlawToPcm16CodecHwDevice* NewL();
    1.39 +	virtual CMMFSwCodec& Codec();
    1.40 +	~CMMFAlawToPcm16CodecHwDevice(); 
    1.41 +private:
    1.42 +	void ConstructL();
    1.43 +	};
    1.44 +
    1.45 +/*
    1.46 +*
    1.47 +* class CMMFAlawToPcm16Codec coverts ALaw to PCM
    1.48 +*  
    1.49 +*/
    1.50 +class CMMFAlawToPcm16Codec : public CMMFSwCodec
    1.51 +	{
    1.52 +public:
    1.53 +	virtual TCodecProcessResult ProcessL(const CMMFBuffer& aSource, CMMFBuffer& aDest);
    1.54 +	virtual TUint SourceBufferSize() {return KALawToCM16SrcBufferSize;};
    1.55 +	virtual TUint SinkBufferSize() {return KALawToCM16SinkBufferSize;};
    1.56 +private:
    1.57 +	TBool CheckPreconditions( const CMMFDataBuffer* aSrcBuffer, CMMFDataBuffer* aDestBuffer );
    1.58 +	TInt AlawSampleToPcm(TUint8 aAlaw);
    1.59 +private:
    1.60 +	TMMFAudioALawToS16PcmCodec iAlawTo16Pcm;
    1.61 +	};
    1.62 +
    1.63 +#endif //__MMF_ALAW_TO_PCM16_HW_DEVICE_H__
    1.64 +