Function openexr::core::frames_per_second::guess_exact_fps_f64

pub fn guess_exact_fps_f64(fps: f64) -> Rational

Tries to convert a floating-point frame rate to the nearest “good” frame rate.

If none is close enough then it returns the closest rational approximation to fps.

use openexr::core::Rational;
use openexr::core::frames_per_second::{guess_exact_fps_f64, fps_59_94};

assert_eq!(guess_exact_fps_f64(59.941), fps_59_94());