Enum GlobalModularState 

pub enum GlobalModularState {
    Huffman {
        depths: Vec<u8>,
        codes: Vec<u16>,
        max_token: u32,
    },
    Ans {
        code: OwnedAnsEntropyCode,
    },
    AnsWithTree {
        code: OwnedAnsEntropyCode,
        tree: Tree,
        wp_params: WeightedPredictorParams,
    },
}

Result of writing the global modular section. Contains the entropy codes needed to encode pixel data in group sections.

Variants

Huffman

Huffman entropy coding state.

Fields

depths: Vec<u8>

Huffman bit depths for each HybridUint token.

codes: Vec<u16>

Huffman codes for each HybridUint token.

max_token: u32

Maximum HybridUint token value.

Ans

ANS entropy coding state (single-context gradient tree).

Fields

code: OwnedAnsEntropyCode

The ANS entropy code (distributions, context map, etc.)

AnsWithTree

ANS entropy coding with learned MA tree (multi-context).

Fields

code: OwnedAnsEntropyCode

The ANS entropy code (multiple distributions, context map).

tree: Tree

The learned MA tree for per-pixel predictor/context selection.

wp_params: WeightedPredictorParams

WP parameters used during tree learning and residual collection.