sl@0: // Copyright (c) 2002-2009 Nokia Corporation and/or its subsidiary(-ies).
sl@0: // All rights reserved.
sl@0: // This component and the accompanying materials are made available
sl@0: // under the terms of "Eclipse Public License v1.0"
sl@0: // which accompanies this distribution, and is available
sl@0: // at the URL "http://www.eclipse.org/legal/epl-v10.html".
sl@0: //
sl@0: // Initial Contributors:
sl@0: // Nokia Corporation - initial contribution.
sl@0: //
sl@0: // Contributors:
sl@0: //
sl@0: // Description:
sl@0: // include\mmf\src\plugin\Hwdevice\audio\pcm16ToPcm16HwDevice.h
sl@0: // 
sl@0: //
sl@0: 
sl@0: #ifndef __MMF_PCM16_TO_PCM16_HW_DEVICE_H__
sl@0: #define __MMF_PCM16_TO_PCM16_HW_DEVICE_H__
sl@0: #include <mmf/server/mmfswcodecwrapper.h>
sl@0: 
sl@0: #ifdef SYMBIAN_MDF_SHAREDCHUNK_SOUNDDRIVER
sl@0: 	#include "mdasoundadapter.h"
sl@0: #else
sl@0: 	#include <mdasound.h>
sl@0: #endif
sl@0: 
sl@0: #include "../../swcodecwrapper/mmfswaudioinput.h"
sl@0: 
sl@0: #include "../../swcodecwrapper/mmfSwCodecDataPath.h"
sl@0: 
sl@0: // for the bitrate custom interface
sl@0: #include <mmf/server/devsoundstandardcustominterfaces.h>
sl@0: 
sl@0: //note we need to keep this buffer at 8K as the tone utility expects 8K
sl@0: const TInt KPCM16ToPCM16BufferSize = 0x2000;
sl@0: const TInt KDevSoundMinFrameSize = 0x800; //2K
sl@0: const TInt KDevSoundMaxFrameSize = 0x4000;  //16K
sl@0: const TInt KDevSoundDeltaFrameSize = 0x800; //2K
sl@0: const TInt KDevSoundFramesPerSecond = 4;
sl@0: 
sl@0: /*
sl@0: *
sl@0: * class CMMFPcm16ToPcm16HwDevice
sl@0: *
sl@0: */
sl@0: class CMMFPcm16ToPcm16HwDevice : public CMMFSwCodecWrapper,
sl@0: 								 public MMMFDevSoundCustomInterfaceBitRate
sl@0: 	{
sl@0: public:
sl@0: 	static  CMMFPcm16ToPcm16HwDevice* NewL();
sl@0: 	virtual CMMFSwCodec& Codec();
sl@0: 	virtual TAny* CustomInterface(TUid aInterfaceId);
sl@0: 	~CMMFPcm16ToPcm16HwDevice(); 
sl@0: 
sl@0: 	TUint CalculateBufferSize();
sl@0: private:
sl@0: 	// from MMMFDevSoundCustomInterfaceBitRate
sl@0: 	virtual void GetSupportedBitRatesL(RArray<TInt>& aSupportedBitRates);
sl@0: 	virtual TInt BitRateL();
sl@0: 	virtual void SetBitRateL(TInt aBitRate);
sl@0: 	
sl@0: 	void BitRatesFromSampleRatesL(RArray<TInt>& aSupportedBitRates, const RArray<TInt>& aSupportedSampleRates);
sl@0: 
sl@0: 	void ConstructL();
sl@0: 	};
sl@0: 
sl@0: /*
sl@0: *
sl@0: * class CMMFPcm16ToPcm16Codec converts Pcm16 to pcm16
sl@0: *
sl@0: */
sl@0: class CMMFPcm16ToPcm16Codec : public CMMFSwCodec
sl@0: 	{
sl@0: public:
sl@0: 	virtual TCodecProcessResult ProcessL(const CMMFBuffer& /*aSource*/, CMMFBuffer& /*aDest*/);
sl@0: //	virtual TUint SourceBufferSize() {return KPCM16ToPCM16BufferSize;};
sl@0: //	virtual TUint SinkBufferSize() {return KPCM16ToPCM16BufferSize;};
sl@0: 	virtual TUint SourceBufferSize();
sl@0: 	virtual TUint SinkBufferSize();
sl@0: 	virtual TBool IsNullCodec() {return ETrue;};
sl@0: 
sl@0: 	void SetHwDevice(CMMFPcm16ToPcm16HwDevice* aHwDevice);
sl@0: private:
sl@0: 	TUint iBufferSize;
sl@0: 	CMMFPcm16ToPcm16HwDevice* iHwDevice;
sl@0: 	};
sl@0: 
sl@0: #endif //__MMF_PCM16_TO_PCM16_HW_DEVICE_H__
sl@0: