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