static spx_word16_t sinc()

in subprojects/speex/resample.c [275:285]

• 9 lines of code
• 3 McCabe index (conditional complexity)

static spx_word16_t sinc(float cutoff, float x, int N, const struct FuncDef *window_func)
{
   /*fprintf (stderr, "%f ", x);*/
   float xx = x * cutoff;
   if (fabs(x)<1e-6f)
      return WORD2INT(32768.*cutoff);
   else if (fabs(x) > .5f*N)
      return 0;
   /*FIXME: Can it really be any slower than this? */
   return WORD2INT(32768.*cutoff*sin(M_PI*xx)/(M_PI*xx) * compute_func(fabs(2.*x/N), window_func));
}