Determining the number of parameters when calculating AIC and BIC

Question

I currently have the following formulas:

$AIC = \ln(\sigma^2)+2(p+q+1)/T$

$BIC = \ln(\sigma^2)+ln(T)(p+q+1)/T$

This does not work for every $ARMA(p,q)$ model. How do I amend the formula depending on the number of parameters?