Struct LZDiff 

pub struct LZDiff { /* private fields */ }

LZ Diff encoder/decoder (V2 implementation)

Implementations

impl LZDiff

pub fn new(min_match_len: u32) -> Self

Create a new LZ diff encoder with the given minimum match length

pub fn prepare(&mut self, reference: &Contig)

Prepare the encoder with a reference sequence

pub fn encode(&mut self, target: &Contig) -> Vec<u8>

Encode target sequence relative to reference

pub fn decode(&self, encoded: &[u8]) -> Vec<u8>

Decode encoded sequence using reference

pub fn get_coding_cost_vector( &self, target: &Contig, prefix_costs: bool, ) -> Vec<u32>

Get coding cost vector for target sequence This computes the per-position cost of encoding the target against the reference Returns a vector where v_costs[i] is the cost of encoding position i If prefix_costs=true, match cost is placed at start of match; otherwise at end

pub fn estimate(&self, target: &Contig, bound: u32) -> u32

Estimate encoding cost without actually encoding (matches C++ CLZDiff_V2::Estimate) This is faster than full encode and used for terminator grouping decisions.

Arguments

• target - Target sequence to estimate encoding cost for
• bound - Early termination bound (return early if cost exceeds this)

Returns

Estimated encoding cost in bytes