1 // Copyright (c) 2002-2009 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 #ifndef _RPELTP_H

    17 #define _RPELTP_H

    18 

    19 #include "types.h"

    20 

    21 const TInt KFrameSize = 160;

    22 const TInt KSubFrameSize = 40;

    23 

    24 #define FRAMESIZE KFrameSize   /* samples in speech frame */

    25 #define SUBFRAMESIZE KSubFrameSize /* samples in subframe */

    26 

    27 class CGSM610FR_Encoder;

    28 class CGSM610FR_Decoder;

    29 

    30 void reset_encoder( CGSM610FR_Encoder* aEncoder );

    31 void reset_decoder( CGSM610FR_Decoder* aDecoder );

    32 

    33 void prepr( CGSM610FR_Encoder* aEncoder, int2 sof[], int2 so[] );

    34 void preemp( CGSM610FR_Encoder* aEncoder, int2 s[], int2 sof[] );

    35 int2 autoc( int4 L_ACF[], int2 s[] ); /* scalauto is returned */

    36 void schur( int2 r[], int4 L_ACF[] );

    37 void larcomp( int2 LAR[], int2 r[] );

    38 void codlar( int2 LARc[], int2 LAR[] );

    39 void declar( int2 LARpp[], int2 LARc[] );

    40 void cparc1( int2 LARp[], int2 LARpp_prev[], int2 LARpp[] );

    41 void cparc2( int2 LARp[], int2 LARpp_prev[], int2 LARpp[] );

    42 void cparc3( int2 LARp[], int2 LARpp_prev[], int2 LARpp[] );

    43 void cparc4( int2 LARp[], int2 LARpp_prev[], int2 LARpp[] );

    44 void crp( int2 rp[], int2 LARp[] );

    45 void invfil( CGSM610FR_Encoder* aEncoder, int2 d[], int2 s[], int2 rp[], int k_start, int k_end );

    46 void ltpcomp( CGSM610FR_Encoder* aEncoder, int2 *Nc, int2 *bc, int2 d[], int k_start );

    47 void ltpfil( CGSM610FR_Encoder* aEncoder, int2 e[], int2 dpp[], int2 d[], int2 bc, int2 Nc, int k_start );

    48 void weight( int2 x[], int2 e[] );

    49 int2 gridsel( int2 xM[], int2 x[] );

    50 void expman( int2 *EXP, int2 *mant, int2 xmaxc );

    51 int2 quantize_xmax( int2 xmax );

    52 int2 apcm( int2 *xmaxc, int2 xMc[], int2 xM[], int2 *EXP, int2 *mant );

    53 void iapcm( int2 xMp[], int2 xMc[], int2 EXP, int2 mant );

    54 void gridpos( int2 ep[], int2 xMp[], int2 Mc );

    55 void ltpupd( CGSM610FR_Encoder* aEncoder, int2 dpp[], int2 ep[] );

    56 void ltpsyn( CGSM610FR_Decoder* aDecoder, int2 erp[], int2 wt[], int2 bcr, int2 Ncr );

    57 void synfil( CGSM610FR_Decoder* aDecoder, int2 sr[], int2 wt[], int2 rrp[], int k_start, int k_end );

    58 

    59 void postpr( CGSM610FR_Decoder* aDecoder, int2 srop[], int2 sr[] );

    60 

    61 #endif

    62