1 /*

     2 * Copyright (c) 2002-2003 Nokia Corporation and/or its subsidiary(-ies).

     3 * All rights reserved.

     4 * This component and the accompanying materials are made available

     5 * under the terms of "Eclipse Public License v1.0"

     6 * which accompanies this distribution, and is available

     7 * at the URL "http://www.eclipse.org/legal/epl-v10.html".

     8 *

     9 * Initial Contributors:

    10 * Nokia Corporation - initial contribution.

    11 *

    12 * Contributors:

    13 *

    14 * Description:

    15 *

    16 */

    17 

    18 #ifndef __MMF_TMMFAUDIO_SPCM16_TO_ALAW_CODEC_H__

    19 #define __MMF_TMMFAUDIO_SPCM16_TO_ALAW_CODEC_H__

    20 #include <e32std.h>

    21 #include "MMFAudioCodecBase.h"

    22 

    23 const TInt KMda16PcmToAlawExpLutSize = 128;

    24 const TInt KMda16PcmToAlawClip       = 31744;

    25 

    26 /*

    27 *

    28 * class TMMFAudioSPcm16ToAlawCodec

    29 *

    30 */

    31 class TMMFAudioSPcm16ToAlawCodec : public TMMFAudioCodecBase

    32 	{

    33 public:

    34 	IMPORT_C virtual void Convert(TUint8* aSrc, TUint8* aDst, TInt aSamples);

    35 private:

    36 	TUint8 PcmSampleToAlaw(TInt aPcm);

    37 private:

    38 	const static TInt8 KExpLut[KMda16PcmToAlawExpLutSize];

    39 	};

    40 

    41 #endif //__MMF_TMMFAUDIO_SPCM16_TO_ALAW_CODEC_H__