Function openmpt_sys::openmpt_module_get_duration_seconds

pub unsafe extern "C" fn openmpt_module_get_duration_seconds(
    mod_: *mut openmpt_module
) -> f64

\brief approximate song duration

\param mod The module handle to work on. \return Approximate duration of current sub-song in seconds. \remarks The function may return infinity if the pattern data is too complex to evaluate.