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// Copyright (c) 2002-2009 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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#ifndef MMFIMAADPCMTOPCM16HWDEVICE_H
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#define MMFIMAADPCMTOPCM16HWDEVICE_H
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#include <mmf/server/mmfswcodecwrapper.h>
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#include "MMFAudioCodecBase.h"
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#include "MMFAudioImaAdpcmToS16PcmCodec.h"
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#include <mmf/server/devsoundstandardcustominterfaces.h>
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const TInt KImaToPCM16SrcBufferSize = 1024;
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const TInt KImaToPCM16SinkBufferSize = 4096;
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/*
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*
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* class CMMFImaAdpcmToPcm16CodecHwDevice
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*
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*/
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class CMMFImaAdpcmToPcm16CodecHwDevice : public CMMFSwCodecWrapper, public MMMFDevSoundCustomInterfaceFileBlockLength
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{
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public:
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static CMMFImaAdpcmToPcm16CodecHwDevice* NewL();
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virtual CMMFSwCodec& Codec();
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~CMMFImaAdpcmToPcm16CodecHwDevice();
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virtual TInt Start(TDeviceFunc aFuncCmd, TDeviceFlow aFlowCmd);
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private:
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void SetFileBlockLength(TUint aBlockAlign);
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TAny* CustomInterface(TUid aInterfaceId);
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private:
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void ConstructL();
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private:
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TUint iBlockAlign;
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};
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/*
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*
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* class CMMFMulawToPcm16Codec coverts Imaad to PCM16
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*
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*/
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class CMMFImaAdpcmToPcm16Codec : public CMMFSwCodec
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{
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public:
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CMMFImaAdpcmToPcm16Codec();
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virtual TCodecProcessResult ProcessL(const CMMFBuffer& aSource, CMMFBuffer& aDest);
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virtual TUint SourceBufferSize() {return KImaToPCM16SrcBufferSize;}
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virtual TUint SinkBufferSize() {return KImaToPCM16SinkBufferSize;}
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TInt Configure(TUint aChannels, TUint aSampleRate, TUint aBlockAlign = 0);
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private:
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TBool CheckPreconditions( const CMMFDataBuffer* aSrcBuffer, CMMFDataBuffer* aDestBuffer );
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private:
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TMMFAudioImaAdpcmToS16PcmCodec iImaAdpcmTo16Pcm;
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private:
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TUint iChannels;
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TUint iSampleRate;
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TUint iBlockAlign;
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TUint iSamplesPerBlock;
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};
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#endif //MMFIMAADPCMTOPCM16HWDEVICE_H
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