Trait redux::model::Model [−] [src]

pub trait Model {
    fn parameters<'a>(&'a self) -> &'a Parameters;
    fn total_frequency(&self) -> u64;
    fn get_frequency(&mut self, symbol: usize) -> Result<(u64, u64)>;
    fn get_symbol(&mut self, value: u64) -> Result<(usize, u64, u64)>;
    fn get_freq_table(&self) -> Vec<(u64, u64)>;
}

Trait for the probability models behind arithmetic coding. Possible implementations may include static models with fixed probabilities or and adaptive model that continuously updates cumulative frequencies.

Required Methods

`fn parameters<'a>(&'a self) -> &'a Parameters`

Returns the arithmetic compression parameters.

`fn total_frequency(&self) -> u64`

Returns the maximum cumulative frequency.

`fn get_frequency(&mut self, symbol: usize) -> Result<(u64, u64)>`

Returns the cumulative frequency range for the given input symbol.

`fn get_symbol(&mut self, value: u64) -> Result<(usize, u64, u64)>`

Returns the symbol that corresponds to the given cumulative frequency.

`fn get_freq_table(&self) -> Vec<(u64, u64)>`

Returns the cumulative frequency table for debugging purposes.

Implementors

impl Model for AdaptiveLinearModel
impl Model for AdaptiveTreeModel