1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/os/mm/mmlibs/mmfw/Codecs/Inc/Gsm610CodecCommon/gsm610fr.h	Fri Jun 15 03:10:57 2012 +0200
     1.3 @@ -0,0 +1,113 @@
     1.4 +// Copyright (c) 2002-2009 Nokia Corporation and/or its subsidiary(-ies).
     1.5 +// All rights reserved.
     1.6 +// This component and the accompanying materials are made available
     1.7 +// under the terms of "Eclipse Public License v1.0"
     1.8 +// which accompanies this distribution, and is available
     1.9 +// at the URL "http://www.eclipse.org/legal/epl-v10.html".
    1.10 +//
    1.11 +// Initial Contributors:
    1.12 +// Nokia Corporation - initial contribution.
    1.13 +//
    1.14 +// Contributors:
    1.15 +//
    1.16 +// Description:
    1.17 +//
    1.18 +
    1.19 +#ifndef __GSM610FR__
    1.20 +#define __GSM610FR__
    1.21 +
    1.22 +//  INCLUDES
    1.23 +#include <e32base.h>
    1.24 +
    1.25 +#include "rpeltp.h"
    1.26 +
    1.27 +// DEFINES
    1.28 +#define PACKSIZE 65 // Size of one bit packed block (2 frames)
    1.29 +
    1.30 +//  CLASS DEFINITIONS
    1.31 +/*
    1.32 +-----------------------------------------------------------------------------
    1.33 +
    1.34 +    CGSM610FR_Encoder
    1.35 +
    1.36 +    GSM 6.10 full rate (FR) speech encoder.
    1.37 +
    1.38 +-----------------------------------------------------------------------------
    1.39 +*/
    1.40 +class CGSM610FR_Encoder
    1.41 +    {
    1.42 +public:
    1.43 +    IMPORT_C void ConstructL();
    1.44 +    IMPORT_C ~CGSM610FR_Encoder();
    1.45 +    IMPORT_C void StartL();
    1.46 +    IMPORT_C void ExecuteL(TUint8* aInBuf, TUint8* OutBuf);
    1.47 +    IMPORT_C void StopL();
    1.48 +private:
    1.49 +    void PackFrame0(struct codes* aCodeBuf, TInt8* pbuf);
    1.50 +    void PackFrame1(struct codes* aCodeBuf, TInt8* pbuf);
    1.51 +private:
    1.52 +    struct codes iCodeBuf;       // buffer for speech codewords, one frame
    1.53 +    TBool iOddFrame;              // is the current frame odd or even frame?
    1.54 +private:
    1.55 +    friend void reset_encoder(CGSM610FR_Encoder* aEncoder);
    1.56 +    friend void prepr(CGSM610FR_Encoder* aEncoder, int2 sof[], int2 so[]);
    1.57 +    friend void preemp(CGSM610FR_Encoder* aEncoder, int2 s[], int2 sof[]);
    1.58 +    friend void ltpcomp(CGSM610FR_Encoder* aEncoder, int2 *Nc, int2 *bc, int2 d[], int k_start);
    1.59 +    friend void ltpfil(CGSM610FR_Encoder* aEncoder, int2 e[], int2 dpp[], int2 d[], int2 bc, int2 Nc, int k_start);
    1.60 +    friend void ltpupd( CGSM610FR_Encoder* aEncoder, int2 dpp[], int2 ep[] );
    1.61 +    friend void LPC_analysis(CGSM610FR_Encoder* aEncoder, int2 ibuf[], struct codes *ecodes);
    1.62 +    friend void invfil(CGSM610FR_Encoder* aEncoder, int2 d[], int2 s[], int2 rp[], int k_start, int k_end);
    1.63 +private:
    1.64 +    int2 z1;            /* delay 1 of offset comp */
    1.65 +    int4 L_z2;          /* delay 2 of offset comp */
    1.66 +    int2 mp;            /* delay of preemphasis */
    1.67 +    int2 u[8];          /* LPC analysis filter delay */
    1.68 +    int2 dp[120];       /* Encoder LTP delay */
    1.69 +    int2 LARpp_prev[8]; /* Encoder LARs of the prev frame */
    1.70 +
    1.71 +    };
    1.72 +
    1.73 +
    1.74 +/*
    1.75 +-----------------------------------------------------------------------------
    1.76 +
    1.77 +    CGSM610FR_Decoder
    1.78 +
    1.79 +    GSM 6.10 full rate (FR) speech decoder.
    1.80 +
    1.81 +-----------------------------------------------------------------------------
    1.82 +*/
    1.83 +class CGSM610FR_Decoder
    1.84 +    {
    1.85 +public:
    1.86 +   IMPORT_C void ConstructL();
    1.87 +   IMPORT_C ~CGSM610FR_Decoder();
    1.88 +   IMPORT_C void StartL();
    1.89 +   IMPORT_C void ExecuteL(TUint8* aSrc, TUint8* aDst);
    1.90 +   IMPORT_C void StopL();
    1.91 +private:
    1.92 +    void UnpackFrame0(struct codes* aCodeBuf, TInt8* pbuf);
    1.93 +    void UnpackFrame1(struct codes* aCodeBuf, TInt8* pbuf);
    1.94 +private:
    1.95 +    struct codes iCodeBuf;       // buffer for speech codewords, one frame
    1.96 +    TBool iOddFrame;             // is the current frame odd or even frame?
    1.97 +private:
    1.98 +    friend void reset_decoder(CGSM610FR_Decoder* aDecoder);
    1.99 +    friend void ltpsyn(CGSM610FR_Decoder* aDecoder, int2 erp[], int2 wt[], int2 bcr, int2 Ncr);
   1.100 +    friend void postpr(CGSM610FR_Decoder* aDecoder, int2 srop[], int2 sr[]);
   1.101 +    friend void LPC_synthesis(CGSM610FR_Decoder* aDecoder, struct codes *dcodes, int2 wt[], int2 obuf[]);
   1.102 +    friend void synfil(CGSM610FR_Decoder* aDecoder, int2 sr[], int2 wt[], int2 rrp[], int k_start, int k_end);
   1.103 +private:
   1.104 +    int2 msr;            /* de emphasis delay */
   1.105 +    int2 v[9];           /* LPC synthesis filter delay */
   1.106 +    int2 drp[120];       /* Decoder LTP delay */
   1.107 +    int2 nrp;            /* LTP delay of the previous frame */
   1.108 +    int2 LARrpp_prev[8]; /* Decoder LARs of the prev frame */
   1.109 +    };
   1.110 +
   1.111 +
   1.112 +#endif //__GSM610FR__
   1.113 +
   1.114 +//-----------------------------------------------------------------------------
   1.115 +//  End of File
   1.116 +//-----------------------------------------------------------------------------