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/*
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* Copyright (c) 2002-2003 Nokia Corporation and/or its subsidiary(-ies).
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* All rights reserved.
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* This component and the accompanying materials are made available
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* under the terms of "Eclipse Public License v1.0"
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* which accompanies this distribution, and is available
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* at the URL "http://www.eclipse.org/legal/epl-v10.html".
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*
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* Initial Contributors:
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* Nokia Corporation - initial contribution.
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*
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* Contributors:
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*
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* Description:
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*
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*/
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#ifndef __MMF_PCM16_TO_IMAADPCM_HW_DEVICE_H__
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#define __MMF_PCM16_TO_IMAADPCM_HW_DEVICE_H__
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#include <mmf/server/mmfswcodecwrapper.h>
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#include "MMFAudioCodecBase.h"
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#include "MMFAudioCodec.h"
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#include "MMFAudioPcm16ToImaAdpcmCodec.h"
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const TInt KPCM16ToImaSrcBufferSize = 0x3F20;
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const TInt KPCM16ToImaSinkBufferSize = 0x1000;
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const TUint KSourceFrameSize = KImaAdpcmSamplesPerBlock * 2;
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const TUint KCodedFrameSize = KImaAdpcmBlockAlign;
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/*
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*
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* class CMMFPcm16ToMulawHwDevice
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*
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*/
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class CMMFPcm16ToImaAdpcmHwDevice : public CMMFSwCodecWrapper
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{
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public:
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static CMMFPcm16ToImaAdpcmHwDevice* NewL();
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virtual CMMFSwCodec& Codec();
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~CMMFPcm16ToImaAdpcmHwDevice();
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private:
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void ConstructL();
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};
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/*
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*
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* class CMMFPcm16ToALawCodec coverts Pcm16 to Imaad
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*
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*/
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class CMMFPcm16ToImaAdpcmCodec : public CMMFSwCodec
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{
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public:
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virtual TCodecProcessResult ProcessL(const CMMFBuffer& aSource, CMMFBuffer& aDest);
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virtual TUint SourceBufferSize() {return KPCM16ToImaSrcBufferSize;};
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virtual TUint SinkBufferSize() {return KPCM16ToImaSinkBufferSize;};
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private:
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virtual void ResetL();
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void ProcessBuffers(const CMMFDataBuffer& aSource, CMMFDataBuffer& aDestination, CMMFSwCodec::TCodecProcessResult& aResult );
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TBool BuffersStatus( const CMMFDataBuffer* source, const CMMFDataBuffer* destination );
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private:
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TMMFAudioPcm16ToImaAdpcmCodec iPcm16ToImaAdpcm;
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TMMFAudioPcm16ToImaAdpcmCodec i16PcmToImaAdpcm;
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TUint iLastFrameNumber;
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};
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#endif //__MMF_PCM16_TO_IMAADPCM_HW_DEVICE_H__
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