1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/os/mm/devsound/sounddevbt/src/Plugin/HwDevice/Audio/MmfBtImaAdpcmToPcm16HwDevice.h	Fri Jun 15 03:10:57 2012 +0200
     1.3 @@ -0,0 +1,66 @@
     1.4 +// Copyright (c) 2002-2009 Nokia Corporation and/or its subsidiary(-ies).
     1.5 +// All rights reserved.
     1.6 +// This component and the accompanying materials are made available
     1.7 +// under the terms of "Eclipse Public License v1.0"
     1.8 +// which accompanies this distribution, and is available
     1.9 +// at the URL "http://www.eclipse.org/legal/epl-v10.html".
    1.10 +//
    1.11 +// Initial Contributors:
    1.12 +// Nokia Corporation - initial contribution.
    1.13 +//
    1.14 +// Contributors:
    1.15 +//
    1.16 +// Description:
    1.17 +//
    1.18 +
    1.19 +#ifndef __MMF_BT_IMAADPCM_TO_PCM16_HW_DEVICE_H__
    1.20 +#define __MMF_BT_IMAADPCM_TO_PCM16_HW_DEVICE_H__
    1.21 +#include <mmfbtswcodecwrapper.h>
    1.22 +#include "MMFAudioCodecBase.h"
    1.23 +#include "MMFAudioImaAdpcmToS16PcmCodec.h"
    1.24 +
    1.25 +const TInt KImaToPCM16SrcBufferSize  = 1024;
    1.26 +const TInt KImaToPCM16SinkBufferSize = 4096;
    1.27 +
    1.28 +/*
    1.29 +*
    1.30 +* class CMMFImaAdpcmToPcm16CodecHwDevice 
    1.31 +*
    1.32 +*/
    1.33 +class CMMFImaAdpcmToPcm16CodecHwDevice : public CMMFSwCodecWrapper
    1.34 +	{
    1.35 +public:
    1.36 +	static  CMMFImaAdpcmToPcm16CodecHwDevice* NewL();
    1.37 +	virtual CMMFSwCodec& Codec();
    1.38 +	~CMMFImaAdpcmToPcm16CodecHwDevice(); 
    1.39 +	virtual TInt Start(TDeviceFunc aFuncCmd, TDeviceFlow aFlowCmd);
    1.40 +private:
    1.41 +	void ConstructL();
    1.42 +	};
    1.43 +
    1.44 +/*
    1.45 +*
    1.46 +* class CMMFMulawToPcm16Codec coverts Imaad to PCM16
    1.47 +*  
    1.48 +*/
    1.49 +class CMMFImaAdpcmToPcm16Codec : public CMMFSwCodec
    1.50 +	{
    1.51 +public:
    1.52 +	CMMFImaAdpcmToPcm16Codec();
    1.53 +	virtual TCodecProcessResult ProcessL(const CMMFBuffer& aSource, CMMFBuffer& aDest);
    1.54 +	virtual TUint SourceBufferSize() {return KImaToPCM16SrcBufferSize;}
    1.55 +	virtual TUint SinkBufferSize() {return KImaToPCM16SinkBufferSize;}
    1.56 +	TInt Configure(TUint aChannels, TUint aSampleRate);
    1.57 +private:
    1.58 +	TBool CheckPreconditions( const CMMFDataBuffer* aSrcBuffer, CMMFDataBuffer* aDestBuffer );
    1.59 +private:
    1.60 +	TMMFAudioImaAdpcmToS16PcmCodec iImaAdpcmTo16Pcm;
    1.61 +	
    1.62 +private:
    1.63 +	TUint iChannels;
    1.64 +	TUint iSampleRate;
    1.65 +	TUint iBlockAlign;
    1.66 +	TUint iSamplesPerBlock;
    1.67 +	};
    1.68 +
    1.69 +#endif //__MMF_BT_IMAADPCM_TO_PCM16_HW_DEVICE_H__