util_lbc.h

语音编解码算法G.723.1的C语言算法原代码

/*
**
** File:        "util_lbc.h"
**
** Description:     Function prototypes for "util_lbc.c"
**  
*/

/*
    ITU-T G.723 Speech Coder   ANSI-C Source Code     Version 4.1
    copyright (c) 1995, AudioCodes, DSP Group, France Telecom,
    Universite de Sherbrooke.  All rights reserved.
*/



void    Rem_Dc( Word16 *Dpnt );
Word16  Vec_Norm( Word16 *Vect, Word16 Len );
void    Mem_Shift( Word16 *PrevDat, Word16 *DataBuff );
void    Line_Pack( LINEDEF *Line, char *, Word16 ) ;
Word16* Par2Ser( Word32, Word16 *, int ) ;
LINEDEF Line_Unpk( char *, Word16 Crc ) ;
Word32  Ser2Par( Word16 **, int ) ;
Word32  Comp_En( Word16 *Dpnt );
Word16  Sqrt_lbc( Word32 Num );
Word16  Rand_lbc( Word16 *p );
void    Scale( Word16 *Tv, Word32 Sen );