RangeEncoder

kizzasi_tokenizer::entropy

Struct RangeEncoder 

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pub struct RangeEncoder { /* private fields */ }
Expand description

Range encoder for efficient entropy coding

Range coding is a variant of arithmetic coding that’s more efficient in practice due to simplified renormalization and better bit packing.

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impl RangeEncoder

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pub fn from_frequencies(frequencies: HashMap<u32, u64>) -> TokenizerResult<Self>

Create a new range encoder from frequencies

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pub fn encode(&self, symbols: &[u32]) -> TokenizerResult<Vec<u8>>

Encode symbols using range coding

Uses a simplified byte-aligned range coder for robustness.

§Arguments
  • symbols - Sequence of symbols to encode
§Returns

Compressed bitstream as bytes

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pub fn frequencies(&self) -> &HashMap<u32, u64>

Get the frequency table

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