|
sl@0
|
1 |
/*
|
|
sl@0
|
2 |
* Copyright (c) 2002-2003 Nokia Corporation and/or its subsidiary(-ies).
|
|
sl@0
|
3 |
* All rights reserved.
|
|
sl@0
|
4 |
* This component and the accompanying materials are made available
|
|
sl@0
|
5 |
* under the terms of "Eclipse Public License v1.0"
|
|
sl@0
|
6 |
* which accompanies this distribution, and is available
|
|
sl@0
|
7 |
* at the URL "http://www.eclipse.org/legal/epl-v10.html".
|
|
sl@0
|
8 |
*
|
|
sl@0
|
9 |
* Initial Contributors:
|
|
sl@0
|
10 |
* Nokia Corporation - initial contribution.
|
|
sl@0
|
11 |
*
|
|
sl@0
|
12 |
* Contributors:
|
|
sl@0
|
13 |
*
|
|
sl@0
|
14 |
* Description:
|
|
sl@0
|
15 |
*
|
|
sl@0
|
16 |
*/
|
|
sl@0
|
17 |
|
|
sl@0
|
18 |
#ifndef __MMF_TMMF_AUDIO_SPCM16_TO_MULAW_CODEC_H__
|
|
sl@0
|
19 |
#define __MMF_TMMF_AUDIO_SPCM16_TO_MULAW_CODEC_H__
|
|
sl@0
|
20 |
#include "MMFAudioCodecBase.h"
|
|
sl@0
|
21 |
|
|
sl@0
|
22 |
const TInt KMda16PcmToMulawExpLutSize = 256;
|
|
sl@0
|
23 |
const TInt KMda16PcmToMulawClip = 32635;
|
|
sl@0
|
24 |
const TInt KMda16PcmToMulawBias = 0x84;
|
|
sl@0
|
25 |
|
|
sl@0
|
26 |
/*
|
|
sl@0
|
27 |
*
|
|
sl@0
|
28 |
* class TMMFAudioSPcm16ToMuLawCodec
|
|
sl@0
|
29 |
*
|
|
sl@0
|
30 |
*/
|
|
sl@0
|
31 |
class TMMFAudioSPcm16ToMuLawCodec : public TMMFAudioCodecBase
|
|
sl@0
|
32 |
{
|
|
sl@0
|
33 |
public:
|
|
sl@0
|
34 |
IMPORT_C virtual void Convert(TUint8* aSrc, TUint8* aDst, TInt aSamples);
|
|
sl@0
|
35 |
private:
|
|
sl@0
|
36 |
TUint8 PcmSampleToMuLaw(TInt aPcm);
|
|
sl@0
|
37 |
private:
|
|
sl@0
|
38 |
const static TInt8 KExpLut[KMda16PcmToMulawExpLutSize];
|
|
sl@0
|
39 |
};
|
|
sl@0
|
40 |
|
|
sl@0
|
41 |
#endif //__MMF_TMMF_AUDIO_SPCM16_TO_MULAW_CODEC_H__
|