Function scale_rational

modules/data/mp3/libmad/mad_timer.c:137–152

* NAME: scale_rational() * DESCRIPTION: solve numer/denom == ?/scale avoiding overflowing */

 * DESCRIPTION:	solve numer/denom == ?/scale avoiding overflowing
 */
static
unsigned long scale_rational(unsigned long numer, unsigned long denom,
			     unsigned long scale)
{
  reduce_rational(&numer, &denom);
  reduce_rational(&scale, &denom);

  assert(denom != 0);

  if (denom < scale)
    return numer * (scale / denom) + numer * (scale % denom) / denom;
  if (denom < numer)
    return scale * (numer / denom) + scale * (numer % denom) / denom;

  return numer * scale / denom;
}

/*
 * NAME:	timer->set()