os/mm/mmlibs/mmfw/src/Plugin/Codec/audio/MMFPcm16ToImaAdPcmCodec.h
author sl@SLION-WIN7.fritz.box
Fri, 15 Jun 2012 03:10:57 +0200
changeset 0 bde4ae8d615e
permissions -rw-r--r--
First public contribution.
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/*
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* Copyright (c) 1997-2002 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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*
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*/
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#ifndef __PCM16_IMAADPCM_CODEC_H__
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#define __PCM16_IMAADPCM_CODEC_H__
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#include "MMFCodecBaseDefinitions.h"
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#include "MMFAudioCodecBase.h"
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//mono IMA - i16PcmToImaAdpcm with 1 (mono)
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class CMMFPcm16ImaAdPcmCodec : public CMMFCodec
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	{
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public:
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	static CMMFCodec* NewL(TAny* aInitParams);
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	virtual ~CMMFPcm16ImaAdPcmCodec();
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	TCodecProcessResult ProcessL(const CMMFBuffer& aSrc, CMMFBuffer& aDst);
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private:
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	CMMFPcm16ImaAdPcmCodec();
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	void ConstructL(TAny* aInitParams);
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	virtual void ResetL();
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private:
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	//owned by the Datapath
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	const CMMFDataBuffer* iSrc;
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	CMMFDataBuffer* iDst;
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	TUint iTempSrcBufferCount;
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	TUint8* iTempSrcBufferPtr;
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	TUint8 iTempSrcBuffer[KImaAdpcmTempBufferSize];
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	TMMF16PcmToImaAdpcmCodecOld i16PcmToImaAdpcm;
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	TUint iLastFrameNumber;
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	};
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#endif