Struct MaConfig

pub struct MaConfig { /* private fields */ }

Meta-adaptive tree configuration.

Meta-adaptive (MA) tree is a decision tree that controls how the sample is decoded in the given context. The configuration consists of two components: the MA tree itself, and the distribution information of an entropy decoder. These components are read from the bitstream.

Implementations

impl MaConfig

pub fn decoder(&self) -> &Decoder

Returns the entropy decoder.

The decoder should be cloned to be used for decoding.

pub fn make_flat_tree( &self, channel: u32, stream_idx: u32, prev_channels: u32, ) -> FlatMaTree

Creates a simplified MA tree with given channel index and stream index, which then can be used to decode samples.

The method will evaluate the tree with the given information and prune branches which are always not taken.

impl MaConfig

pub fn num_tree_nodes(&self) -> usize

Returns the number of MA tree nodes.

pub fn tree_depth(&self) -> usize

Returns the maximum distance from root to any leaf node.

Trait Implementations

impl Bundle<MaConfigParams<'_>> for MaConfig

type Error = Error

fn parse( bitstream: &mut Bitstream<'_>, params: MaConfigParams<'_>, ) -> Result<Self>

Parses a value from the bitstream with the given context.

impl Clone for MaConfig

fn clone(&self) -> MaConfig

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for MaConfig

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

Formats the value using the given formatter.