utilcng2.h

symbian 系统下的g.723 g.723_24实现, 本源码在 series60 sdk fp2下调试通过

/*
**
** File:        "utilcng2.h"
**
** Description:     Function prototypes for "utilcng2.c"
**
*/

/*
    ITU-T G.723.1 Floating Point Speech Coder ANSI C Source Code.  Version 5.1F
    copyright (c) 1995, AudioCodes, DSP Group, France Telecom,
    Universite de Sherbrooke.  All rights reserved.

    Floating-point code copyright (c) 1996,
    Intel Corporation and France Telecom (CNET).
    All rights reserved.
*/

void    Calc_Exc_Rand(FLOAT curGain, FLOAT *PrevExc, FLOAT *DataExc,
                                      Word16 *nRandom, LINEDEF *Line);
Word16  Qua_SidGain(FLOAT *Ener, Word16 nq);
FLOAT   Dec_SidGain(Word16 iGain);