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use local fabs() routine

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This commit is contained in:
Josh Coalson
2001-05-14 21:25:34 +00:00
parent 2d5aae0af7
commit c59638ea49
1 changed files with 4 additions and 2 deletions
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6
src/libFLAC/lpc.c
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@@ -28,6 +28,8 @@
#define M_LN2 0.69314718055994530942
#endif
#define LOCAL_FABS (x) ((x)<0.0? -(x):(x))
void FLAC__lpc_compute_autocorrelation(const real data[], unsigned data_len, unsigned lag, real autoc[])
{
/* a readable, but slower, version */
@@ -102,7 +104,7 @@ void FLAC__lpc_compute_lp_coefficients(const real autoc[], unsigned max_order, r
/* save this order */
for(j = 0; j <= i; j++)
lp_coeff[i][j] = -lpc[j]; /* negate to get FIR filter coeffs */
lp_coeff[i][j] = -lpc[j]; /* negate FIR filter coeff to get predictor coeff */
error[i] = err;
}
}
@@ -127,7 +129,7 @@ int FLAC__lpc_quantize_coefficients(const real lp_coeff[], unsigned order, unsig
for(i = 0; i < order; i++) {
if(lp_coeff[i] == 0.0)
continue;
d = fabs(lp_coeff[i]);
d = LOCAL_FABS(lp_coeff[i]);
if(d > cmax)
cmax = d;
}