mmlibs/mmfw/codecs/Src/MMFCodecCommon/MMFAudioPcm8ToPcm16Codec.cpp
author hgs
Tue, 02 Nov 2010 12:28:51 +0000
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2010wk46_02
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// Copyright (c) 2003-2009 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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#include "MMFAudioPcm8ToPcm16Codec.h"
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#include <e32base.h>
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#include <e32math.h>
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#include <f32file.h>
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#include <s32file.h>
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/**
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*
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* Convert
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* @param aSrc
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* @param aDst
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* @param aSamples
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* Signed 8bit to Signed 16bit
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*/
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EXPORT_C void TMMFAudioPcm8ToPcm16Codec::Convert(TUint8* aSrc, TUint8* aDst, TInt aSamples)
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	{
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	TInt16 s16;
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	while (aSamples--)
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		{ 
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		s16 = static_cast<TInt16>((*aSrc++)<<8);
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		*aDst++ = STATIC_CAST( TUint8, s16&KAndMask8bit);
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		*aDst++ = STATIC_CAST( TUint8, (s16>>8)&KAndMask8bit);		
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		}
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	}