nihav-codec-support/src/vq/mod.rs

   1 //! Vector quantisation routines.
   2 mod generic_elbg;
   3 mod generic_mediancut;
   4
   5 pub trait VQElement: Sized+Copy+PartialEq {
   6     fn dist(&self, rval: Self) -> u32;
   7     fn min_cw() -> Self;
   8     fn max_cw() -> Self;
   9     fn min(&self, rval: Self) -> Self;
  10     fn max(&self, rval: Self) -> Self;
  11     fn num_components() -> usize;
  12     fn sort_by_component(arr: &mut [Self], component: usize);
  13     fn max_dist_component(min: &Self, max: &Self) -> usize;
  14 }
  15
  16 pub trait VQElementSum<T: VQElement> {
  17     fn zero() -> Self;
  18     fn add(&mut self, rval: T, count: u64);
  19     fn get_centroid(&self) -> T;
  20 }
  21
  22 pub use self::generic_elbg::ELBG;
  23 pub use self::generic_mediancut::quantise_median_cut;