1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/os/mm/devsound/devsoundrefplugin/src/plugin/audio/mmfpcm16ToImaAdpcm.h	Fri Jun 15 03:10:57 2012 +0200
     1.3 @@ -0,0 +1,67 @@
     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_PCM16_TO_IMAADPCM_HW_DEVICE_H__
    1.22 +#define __MMF_PCM16_TO_IMAADPCM_HW_DEVICE_H__
    1.23 +
    1.24 +#include <mmf/server/mmfswcodecwrapper.h>
    1.25 +#include "MMFAudioCodecBase.h"
    1.26 +#include "MMFAudioCodec.h"
    1.27 +#include "MMFAudioPcm16ToImaAdpcmCodec.h"
    1.28 +
    1.29 +const TInt KPCM16ToImaSrcBufferSize  = 0x3F20;
    1.30 +const TInt KPCM16ToImaSinkBufferSize = 0x1000;
    1.31 +const TUint KSourceFrameSize = KImaAdpcmSamplesPerBlock * 2;
    1.32 +const TUint KCodedFrameSize  = KImaAdpcmBlockAlign;
    1.33 +
    1.34 +/*
    1.35 +*
    1.36 +* class CMMFPcm16ToMulawHwDevice 
    1.37 +*
    1.38 +*/
    1.39 +class CMMFPcm16ToImaAdpcmHwDevice : public CMMFSwCodecWrapper
    1.40 +	{	
    1.41 +public:
    1.42 +	static  CMMFPcm16ToImaAdpcmHwDevice* NewL();
    1.43 +	virtual CMMFSwCodec& Codec();
    1.44 +	~CMMFPcm16ToImaAdpcmHwDevice(); 
    1.45 +private:
    1.46 +	void ConstructL();
    1.47 +	};
    1.48 +
    1.49 +/*
    1.50 +*
    1.51 +* class CMMFPcm16ToALawCodec coverts Pcm16 to Imaad
    1.52 +*  
    1.53 +*/
    1.54 +class CMMFPcm16ToImaAdpcmCodec : public CMMFSwCodec
    1.55 +	{
    1.56 +public:
    1.57 +	virtual TCodecProcessResult ProcessL(const CMMFBuffer& aSource, CMMFBuffer& aDest);
    1.58 +	virtual TUint SourceBufferSize() {return KPCM16ToImaSrcBufferSize;};
    1.59 +	virtual TUint SinkBufferSize() {return   KPCM16ToImaSinkBufferSize;};
    1.60 +private:
    1.61 +	virtual void ResetL();
    1.62 +	void ProcessBuffers(const CMMFDataBuffer& aSource, CMMFDataBuffer& aDestination, CMMFSwCodec::TCodecProcessResult& aResult );
    1.63 +	TBool BuffersStatus( const CMMFDataBuffer* source, const CMMFDataBuffer* destination );
    1.64 +private:
    1.65 +	TMMFAudioPcm16ToImaAdpcmCodec iPcm16ToImaAdpcm;
    1.66 +	TMMFAudioPcm16ToImaAdpcmCodec i16PcmToImaAdpcm;
    1.67 +	TUint iLastFrameNumber;
    1.68 +	};
    1.69 +
    1.70 +#endif //__MMF_PCM16_TO_IMAADPCM_HW_DEVICE_H__