pub fn bd_rate(reference: &[(f64, f64)], test: &[(f64, f64)]) -> Option<f64>Expand description
Calculate BD-Rate (Bjontegaard Delta Rate).
BD-Rate measures the average bitrate difference between two rate-distortion curves at the same quality level. A negative value means the test curve is more efficient (lower bitrate at same quality).
§Arguments
reference- Reference curve points (bitrate, quality).test- Test curve points (bitrate, quality).
§Returns
BD-Rate as a percentage. Negative = test is better.