rustdct

Trait Dct4

Source 
pub trait Dct4<T: DctNum>:
    RequiredScratch
    + Length
    + Sync
    + Send {
    // Required method
    fn process_dct4_with_scratch(&self, buffer: &mut [T], scratch: &mut [T]);

    // Provided method
    fn process_dct4(&self, buffer: &mut [T]) { ... }
}
Expand description

A trait for algorithms which compute the Discrete Cosine Transform Type 4 (DCT4)

Required Methods§

Source

fn process_dct4_with_scratch(&self, buffer: &mut [T], scratch: &mut [T])

Computes the DCT Type 4 on the provided buffer, in-place. Uses the provided scratch buffer as scratch space.

Does not normalize outputs.

Provided Methods§

Source

fn process_dct4(&self, buffer: &mut [T])

Computes the DCT Type 4 on the provided buffer, in-place.

This method may allocate a Vec of scratch space as needed. If you’d like to reuse that allocation between multiple computations, consider calling process_dst4_with_scratch instead.

Does not normalize outputs.

Implementors§