1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/os/mm/devsound/devsoundrefplugin/src/plugin/audio/MmfImaAdpcmtopcm16hwdevice.h	Fri Jun 15 03:10:57 2012 +0200
     1.3 @@ -0,0 +1,74 @@
     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 MMFIMAADPCMTOPCM16HWDEVICE_H
    1.20 +#define MMFIMAADPCMTOPCM16HWDEVICE_H
    1.21 +#include <mmf/server/mmfswcodecwrapper.h>
    1.22 +#include "MMFAudioCodecBase.h"
    1.23 +#include "MMFAudioImaAdpcmToS16PcmCodec.h"
    1.24 +#include <mmf/server/devsoundstandardcustominterfaces.h>
    1.25 +
    1.26 +const TInt KImaToPCM16SrcBufferSize  = 1024;
    1.27 +const TInt KImaToPCM16SinkBufferSize = 4096;
    1.28 +
    1.29 +/*
    1.30 +*
    1.31 +* class CMMFImaAdpcmToPcm16CodecHwDevice 
    1.32 +*
    1.33 +*/
    1.34 +class CMMFImaAdpcmToPcm16CodecHwDevice : public CMMFSwCodecWrapper, public MMMFDevSoundCustomInterfaceFileBlockLength
    1.35 +	{
    1.36 +public:
    1.37 +	static  CMMFImaAdpcmToPcm16CodecHwDevice* NewL();
    1.38 +	virtual CMMFSwCodec& Codec();
    1.39 +	~CMMFImaAdpcmToPcm16CodecHwDevice(); 
    1.40 +	virtual TInt Start(TDeviceFunc aFuncCmd, TDeviceFlow aFlowCmd);
    1.41 +private:
    1.42 +	void SetFileBlockLength(TUint aBlockAlign);
    1.43 +	TAny* CustomInterface(TUid aInterfaceId);
    1.44 +private:
    1.45 +	void ConstructL();
    1.46 +
    1.47 +private:
    1.48 +	TUint iBlockAlign;
    1.49 +	};
    1.50 +
    1.51 +
    1.52 +/*
    1.53 +*
    1.54 +* class CMMFMulawToPcm16Codec coverts Imaad to PCM16
    1.55 +*  
    1.56 +*/
    1.57 +class CMMFImaAdpcmToPcm16Codec : public CMMFSwCodec
    1.58 +	{
    1.59 +public:
    1.60 +	CMMFImaAdpcmToPcm16Codec();
    1.61 +	virtual TCodecProcessResult ProcessL(const CMMFBuffer& aSource, CMMFBuffer& aDest);
    1.62 +	virtual TUint SourceBufferSize() {return KImaToPCM16SrcBufferSize;}
    1.63 +	virtual TUint SinkBufferSize() {return KImaToPCM16SinkBufferSize;}
    1.64 +	TInt Configure(TUint aChannels, TUint aSampleRate, TUint aBlockAlign = 0);
    1.65 +private:
    1.66 +	TBool CheckPreconditions( const CMMFDataBuffer* aSrcBuffer, CMMFDataBuffer* aDestBuffer );
    1.67 +private:
    1.68 +	TMMFAudioImaAdpcmToS16PcmCodec iImaAdpcmTo16Pcm;
    1.69 +	
    1.70 +private:
    1.71 +	TUint iChannels;
    1.72 +	TUint iSampleRate;
    1.73 +	TUint iBlockAlign;
    1.74 +	TUint iSamplesPerBlock;
    1.75 +	};
    1.76 +
    1.77 +#endif //MMFIMAADPCMTOPCM16HWDEVICE_H