Function rsmpeg::ffi::av_reduce

pub unsafe extern "C" fn av_reduce(
    dst_num: *mut i32, 
    dst_den: *mut i32, 
    num: i64, 
    den: i64, 
    max: i64
) -> i32

Reduce a fraction.

This is useful for framerate calculations.

@param[out] dst_num Destination numerator @param[out] dst_den Destination denominator @param[in] num Source numerator @param[in] den Source denominator @param[in] max Maximum allowed values for dst_num & dst_den @return 1 if the operation is exact, 0 otherwise