static void LSFinterpolate2a_enc(float *a, /* (o) lpc coefficients */
float *lsf1, /* (i) first set of lsf coefficients */
float *lsf2, /* (i) second set of lsf coefficients */
float coef, /* (i) weighting coefficient to use between lsf1 and lsf2 */
long length) /* (i) length of coefficient vectors */
{
float lsftmp[ILBC_LPC_FILTERORDER];
interpolate(lsftmp, lsf1, lsf2, coef, length);
lsf2a(a, lsftmp);
}
void LSFinterpolate2a_dec(
float *a, /* (o) lpc coefficients for a sub-frame */
float *lsf1, /* (i) first lsf coefficient vector */
float *lsf2, /* (i) second lsf coefficient vector */
float coef, /* (i) interpolation weight */
int length /* (i) length of lsf vectors */
){
float lsftmp[LPC_FILTERORDER];
interpolate(lsftmp, lsf1, lsf2, coef, length);
lsf2a(a, lsftmp);
}