Struct Codebook 

pub struct Codebook {
    pub entries: usize,
    pub table: Vec<CodebookEntry>,
    pub dimensions: usize,
}

A Vorbis codebook.

Fields

entries: usize

Number of entries.

table: Vec<CodebookEntry>

Entry descriptors.

dimensions: usize

Vector dimension (1 for scalar books).

Implementations

impl Codebook

pub fn from_lengths_and_values(lengths: &[u8], values: &[f32]) -> Self

Build a codebook from entry lengths and associated scalar values.

lengths[i] is the Huffman code length for entry i. values[i] is the decoded scalar value for entry i (dimension=1).

pub fn lookup(&self, index: usize) -> Option<&[f32]>

Look up the value for the entry with the given index.

Returns None if the index is out of range or the entry is unused (length=0).

pub fn average_code_length(&self) -> f64

Compute the average code length (entropy estimate).

pub fn kraft_inequality_satisfied(&self) -> bool

Kraft inequality check: returns true if code lengths satisfy Kraft’s inequality.

Trait Implementations

impl Clone for Codebook

fn clone(&self) -> Codebook

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Codebook

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

Formats the value using the given formatter.