1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/os/mm/devsound/devsoundrefplugin/src/plugin/audio/MMFpcm16ToPcm16HwDevice.h	Fri Jun 15 03:10:57 2012 +0200
     1.3 @@ -0,0 +1,90 @@
     1.4 +// Copyright (c) 2002-2009 Nokia Corporation and/or its subsidiary(-ies).
     1.5 +// All rights reserved.
     1.6 +// This component and the accompanying materials are made available
     1.7 +// under the terms of "Eclipse Public License v1.0"
     1.8 +// which accompanies this distribution, and is available
     1.9 +// at the URL "http://www.eclipse.org/legal/epl-v10.html".
    1.10 +//
    1.11 +// Initial Contributors:
    1.12 +// Nokia Corporation - initial contribution.
    1.13 +//
    1.14 +// Contributors:
    1.15 +//
    1.16 +// Description:
    1.17 +// include\mmf\src\plugin\Hwdevice\audio\pcm16ToPcm16HwDevice.h
    1.18 +// 
    1.19 +//
    1.20 +
    1.21 +#ifndef __MMF_PCM16_TO_PCM16_HW_DEVICE_H__
    1.22 +#define __MMF_PCM16_TO_PCM16_HW_DEVICE_H__
    1.23 +#include <mmf/server/mmfswcodecwrapper.h>
    1.24 +
    1.25 +#ifdef SYMBIAN_MDF_SHAREDCHUNK_SOUNDDRIVER
    1.26 +	#include "mdasoundadapter.h"
    1.27 +#else
    1.28 +	#include <mdasound.h>
    1.29 +#endif
    1.30 +
    1.31 +#include "../../swcodecwrapper/mmfswaudioinput.h"
    1.32 +
    1.33 +#include "../../swcodecwrapper/mmfSwCodecDataPath.h"
    1.34 +
    1.35 +// for the bitrate custom interface
    1.36 +#include <mmf/server/devsoundstandardcustominterfaces.h>
    1.37 +
    1.38 +//note we need to keep this buffer at 8K as the tone utility expects 8K
    1.39 +const TInt KPCM16ToPCM16BufferSize = 0x2000;
    1.40 +const TInt KDevSoundMinFrameSize = 0x800; //2K
    1.41 +const TInt KDevSoundMaxFrameSize = 0x4000;  //16K
    1.42 +const TInt KDevSoundDeltaFrameSize = 0x800; //2K
    1.43 +const TInt KDevSoundFramesPerSecond = 4;
    1.44 +
    1.45 +/*
    1.46 +*
    1.47 +* class CMMFPcm16ToPcm16HwDevice
    1.48 +*
    1.49 +*/
    1.50 +class CMMFPcm16ToPcm16HwDevice : public CMMFSwCodecWrapper,
    1.51 +								 public MMMFDevSoundCustomInterfaceBitRate
    1.52 +	{
    1.53 +public:
    1.54 +	static  CMMFPcm16ToPcm16HwDevice* NewL();
    1.55 +	virtual CMMFSwCodec& Codec();
    1.56 +	virtual TAny* CustomInterface(TUid aInterfaceId);
    1.57 +	~CMMFPcm16ToPcm16HwDevice(); 
    1.58 +
    1.59 +	TUint CalculateBufferSize();
    1.60 +private:
    1.61 +	// from MMMFDevSoundCustomInterfaceBitRate
    1.62 +	virtual void GetSupportedBitRatesL(RArray<TInt>& aSupportedBitRates);
    1.63 +	virtual TInt BitRateL();
    1.64 +	virtual void SetBitRateL(TInt aBitRate);
    1.65 +	
    1.66 +	void BitRatesFromSampleRatesL(RArray<TInt>& aSupportedBitRates, const RArray<TInt>& aSupportedSampleRates);
    1.67 +
    1.68 +	void ConstructL();
    1.69 +	};
    1.70 +
    1.71 +/*
    1.72 +*
    1.73 +* class CMMFPcm16ToPcm16Codec converts Pcm16 to pcm16
    1.74 +*
    1.75 +*/
    1.76 +class CMMFPcm16ToPcm16Codec : public CMMFSwCodec
    1.77 +	{
    1.78 +public:
    1.79 +	virtual TCodecProcessResult ProcessL(const CMMFBuffer& /*aSource*/, CMMFBuffer& /*aDest*/);
    1.80 +//	virtual TUint SourceBufferSize() {return KPCM16ToPCM16BufferSize;};
    1.81 +//	virtual TUint SinkBufferSize() {return KPCM16ToPCM16BufferSize;};
    1.82 +	virtual TUint SourceBufferSize();
    1.83 +	virtual TUint SinkBufferSize();
    1.84 +	virtual TBool IsNullCodec() {return ETrue;};
    1.85 +
    1.86 +	void SetHwDevice(CMMFPcm16ToPcm16HwDevice* aHwDevice);
    1.87 +private:
    1.88 +	TUint iBufferSize;
    1.89 +	CMMFPcm16ToPcm16HwDevice* iHwDevice;
    1.90 +	};
    1.91 +
    1.92 +#endif //__MMF_PCM16_TO_PCM16_HW_DEVICE_H__
    1.93 +