1 // Copyright (c) 2003-2009 Nokia Corporation and/or its subsidiary(-ies).

     2 // All rights reserved.

     3 // This component and the accompanying materials are made available

     4 // under the terms of "Eclipse Public License v1.0"

     5 // which accompanies this distribution, and is available

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

     7 //

     8 // Initial Contributors:

     9 // Nokia Corporation - initial contribution.

    10 //

    11 // Contributors:

    12 //

    13 // Description:

    14 //

    15 

    16 #include "MMFAudioU16ToS16PcmCodec.h"

    17 

    18 /**

    19 *

    20 * Convert

    21 * @param aSrc

    22 * @param aDst

    23 * @param aSamples

    24 * Unsigned 16bit to Signed 16bit

    25 */

    26 EXPORT_C void TMMFAudioU16ToS16PcmCodec::Convert(TUint8* aSrc, TUint8* aDst, TInt aSamples)

    27 	{

    28 	TInt s16;

    29 	while (aSamples--)

    30 		{ 

    31 		s16 = (aSrc[0]+(aSrc[1]<<8))-KMaskSign16bit;

    32 		*aDst++ = STATIC_CAST( TInt8, s16&KAndMask8bit);

    33 		*aDst++ = STATIC_CAST( TInt8, (s16>>8)&KAndMask8bit);

    34 		aSrc+=2;

    35 		}

    36 	}