sl@0: // Copyright (c) 1997-2009 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: 
sl@0: #ifndef MMFIMAADPCMTOPCM16CODEC_H
sl@0: #define MMFIMAADPCMTOPCM16CODEC_H
sl@0: 
sl@0: #include "MMFCodecBaseDefinitions.h"
sl@0: #include "MMFAudioCodecBase.h"
sl@0: #include <mmf/server/devsoundstandardcustominterfaces.h>
sl@0: 
sl@0: const TUint KMaxImaAdpcmBlockAlign = 2048;
sl@0: const TUint KImaAdpcmBitsPerSample = 4;
sl@0: 
sl@0: //mono so iImaAdpcmTo16Pcm constructed with 1 (mono)
sl@0: class CMMFImaAdPcmPcm16Codec : public CMMFCodec, public MMMFDevSoundCustomInterfaceFileBlockLength
sl@0: 	{
sl@0: public:
sl@0: 	static CMMFCodec* NewL(TAny* aInitParams);
sl@0: 	virtual ~CMMFImaAdPcmPcm16Codec();
sl@0: 	TCodecProcessResult ProcessL(const CMMFBuffer& aSrc, CMMFBuffer& aDst);
sl@0: 	void ConfigureL(TUid aConfigType, const TDesC8& aConfigData);
sl@0: 	// from MMMFDevSoundCustomInterfaceFileBlockLength
sl@0: 	void SetFileBlockLength(TUint aBlockAlign);
sl@0: protected:
sl@0: 	virtual TInt Extension_(TUint aExtensionId, TAny*& aExtPtr, TAny*);	
sl@0: private:
sl@0: 	CMMFImaAdPcmPcm16Codec();
sl@0: 	void ConstructL(TAny* aInitParams);
sl@0: 	virtual void ResetL();
sl@0: 	
sl@0: private:
sl@0: 	//owned by the Datapath
sl@0: 	const CMMFDataBuffer* iSrc;
sl@0: 	CMMFDataBuffer* iDst;
sl@0: 
sl@0: 	TUint iTempSrcBufferCount;
sl@0: 	TUint8* iTempSrcBufferPtr;
sl@0: 	TUint8 iTempSrcBuffer[KMaxImaAdpcmBlockAlign];
sl@0: 	TMMFImaAdpcmTo16PcmCodecOld iImaAdpcmTo16Pcm ;
sl@0: 	TUint iLastFrameNumber;
sl@0: 	
sl@0: 	// allow configuring sample rate
sl@0: 	TUint iChannels;
sl@0: 	TUint iSamplesRate;
sl@0: 	TUint iSamplesPerBlock;
sl@0: 	TUint iBlockAlign;
sl@0: 	};
sl@0: 
sl@0: 
sl@0: #endif