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/* 
   ITU-T G.729 Annex C+ - Reference C code for floating point 
                         implementation of G.729 Annex C+ 
                         (integration of Annexes B, D and E) 
                          Version 2.1 of October 1999 
*/ 
 
/* 
 File : PWFE.C 
 */ 
#include  
#include  
 
#include "typedef.h" 
 
/************************************************************************/ 
/*                                                                      */ 
/*   ADAPTIVE BANDWIDTH EXPANSION FOR THE PERCEPTUAL WEIGHTING FILTER   */ 
/*                                                                      */ 
/*                 W(z) = A (z/gamma1) / A(z/gamma2)                    */ 
/*                                                                      */ 
/************************************************************************/ 
 
void perc_vare ( 
    FLOAT *gamma1,   /* Bandwidth expansion parameter */ 
    FLOAT *gamma2,   /* Bandwidth expansion parameter */ 
    int  high_stat /* high_stat indication (see file bwfw.c) */ 
) 
{ 
    if (high_stat == 0) { 
        gamma1[0] = (F)0.9; 
        gamma1[1] = (F)0.9; 
        gamma2[0] = (F)0.4; 
        gamma2[1] = (F)0.4; 
    } 
    else { 
        gamma1[0] = (F)0.98; 
        gamma1[1] = (F)0.98; 
        gamma2[0] = (F)0.4; 
        gamma2[1] = (F)0.4; 
    } 
    return; 
}