Struct ChainTrellis 

pub struct ChainTrellis<'a, A: Arc> { /* private fields */ }

AlignChain against a matrix of scores: the trellis align solves.

The chain alone has no scores, and a Trellis is the two together. This is public because the trellis is the reusable half: best_path and posteriors take one, so a caller wanting the raw Path, or a variant topology of their own, starts here rather than at align. It is also the worked example the trellis docs point at.

Implementations

impl<A: Arc> ChainTrellis<'_, A>

pub fn chain(&self) -> &AlignChain

The reference this reads.

Trait Implementations

impl<'a, A: Clone + Arc> Clone for ChainTrellis<'a, A>

fn clone(&self) -> ChainTrellis<'a, A>

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl<'a, A: Copy + Arc> Copy for ChainTrellis<'a, A>

impl<'a, A: Debug + Arc> Debug for ChainTrellis<'a, A>

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl<A: Arc> ReversibleTrellis<4> for ChainTrellis<'_, A>

where A::Weight: FromScore,

fn steps_out_of(&self, frame: &[f32], position: usize) -> [Step; 4]

The DEGREE transitions leaving position, in the same order steps_into lists them.

impl<A: Arc> Trellis<4> for ChainTrellis<'_, A>

where A::Weight: FromScore,

type Frame<'f> = &'f [f32] where Self: 'f

What one frame’s transitions are read from, usually a row of acoustic scores.

fn num_frames(&self) -> usize

The number of frames to be accounted for.

fn num_positions(&self) -> usize

The last position. There are num_positions() + 1 cells in a frame, s_0 through s_N; a path starts at s_0 and has to finish at s_N.

fn frame(&self, frame: usize) -> &[f32]

One frame’s scores.

fn steps_into(&self, frame: &[f32], position: usize) -> [Step; 4]

The DEGREE transitions entering position, best-first.

const REACH: u8 = 1

The most positions any one transition advances. One for a chain, where a frame either holds its position or moves to the next; more for a trellis that can pass over several positions at once, such as one that gives up a whole word.