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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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// include\mmf\src\plugin\Hwdevice\audio\pcm16ToPcm16HwDevice.h
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//
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//
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#ifndef __MMF_PCM16_TO_PCM16_HW_DEVICE_H__
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#define __MMF_PCM16_TO_PCM16_HW_DEVICE_H__
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#include <mmf/server/mmfswcodecwrapper.h>
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#ifdef SYMBIAN_MDF_SHAREDCHUNK_SOUNDDRIVER
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#include "mdasoundadapter.h"
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#else
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#include <mdasound.h>
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#endif
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#include "../../swcodecwrapper/mmfswaudioinput.h"
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#include "../../swcodecwrapper/mmfSwCodecDataPath.h"
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// for the bitrate custom interface
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#include <mmf/server/devsoundstandardcustominterfaces.h>
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//note we need to keep this buffer at 8K as the tone utility expects 8K
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const TInt KPCM16ToPCM16BufferSize = 0x2000;
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const TInt KDevSoundMinFrameSize = 0x800; //2K
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const TInt KDevSoundMaxFrameSize = 0x4000; //16K
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const TInt KDevSoundDeltaFrameSize = 0x800; //2K
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const TInt KDevSoundFramesPerSecond = 4;
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/*
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*
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* class CMMFPcm16ToPcm16HwDevice
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*
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*/
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class CMMFPcm16ToPcm16HwDevice : public CMMFSwCodecWrapper,
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public MMMFDevSoundCustomInterfaceBitRate
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{
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public:
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static CMMFPcm16ToPcm16HwDevice* NewL();
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virtual CMMFSwCodec& Codec();
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virtual TAny* CustomInterface(TUid aInterfaceId);
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~CMMFPcm16ToPcm16HwDevice();
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TUint CalculateBufferSize();
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private:
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// from MMMFDevSoundCustomInterfaceBitRate
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virtual void GetSupportedBitRatesL(RArray<TInt>& aSupportedBitRates);
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virtual TInt BitRateL();
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virtual void SetBitRateL(TInt aBitRate);
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void BitRatesFromSampleRatesL(RArray<TInt>& aSupportedBitRates, const RArray<TInt>& aSupportedSampleRates);
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void ConstructL();
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};
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/*
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*
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* class CMMFPcm16ToPcm16Codec converts Pcm16 to pcm16
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*
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*/
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class CMMFPcm16ToPcm16Codec : 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 KPCM16ToPCM16BufferSize;};
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// virtual TUint SinkBufferSize() {return KPCM16ToPCM16BufferSize;};
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virtual TUint SourceBufferSize();
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virtual TUint SinkBufferSize();
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virtual TBool IsNullCodec() {return ETrue;};
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void SetHwDevice(CMMFPcm16ToPcm16HwDevice* aHwDevice);
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private:
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TUint iBufferSize;
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CMMFPcm16ToPcm16HwDevice* iHwDevice;
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};
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#endif //__MMF_PCM16_TO_PCM16_HW_DEVICE_H__
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