mmlibs/mmfw/Codecs/Inc/MMFCodecCommon/MMFAudioSPcm16ToALawCodec.h
author Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
Tue, 02 Feb 2010 01:56:55 +0200
changeset 0 40261b775718
permissions -rw-r--r--
Revision: 201003 Kit: 201005

/*
* Copyright (c) 2002-2003 Nokia Corporation and/or its subsidiary(-ies).
* All rights reserved.
* This component and the accompanying materials are made available
* under the terms of "Eclipse Public License v1.0"
* which accompanies this distribution, and is available
* at the URL "http://www.eclipse.org/legal/epl-v10.html".
*
* Initial Contributors:
* Nokia Corporation - initial contribution.
*
* Contributors:
*
* Description:
*
*/

#ifndef __MMF_TMMFAUDIO_SPCM16_TO_ALAW_CODEC_H__
#define __MMF_TMMFAUDIO_SPCM16_TO_ALAW_CODEC_H__
#include <e32std.h>
#include "MMFAudioCodecBase.h"

const TInt KMda16PcmToAlawExpLutSize = 128;
const TInt KMda16PcmToAlawClip       = 31744;

/*
*
* class TMMFAudioSPcm16ToAlawCodec
*
*/
class TMMFAudioSPcm16ToAlawCodec : public TMMFAudioCodecBase
	{
public:
	IMPORT_C virtual void Convert(TUint8* aSrc, TUint8* aDst, TInt aSamples);
private:
	TUint8 PcmSampleToAlaw(TInt aPcm);
private:
	const static TInt8 KExpLut[KMda16PcmToAlawExpLutSize];
	};

#endif //__MMF_TMMFAUDIO_SPCM16_TO_ALAW_CODEC_H__