#trkbt10/jpeg2000

#Install

moon add trkbt10/jpeg2000

#Quick Start

import {
  "trkbt10/jpeg2000" @j2k,
}

///|
fn main {
  let data : Bytes = ... // JPEG 2000 codestream bytes
  let image = try { @j2k.decode(data) } catch { e => abort(e.to_string()) }
  println("w=\{image.width} h=\{image.height} comps=\{image.num_components}")
}

#Public API

#Decode

pub fn decode(Bytes) -> ImageData raise DecodeError

#Parse

pub fn parse(Bytes) -> Codestream raise DecodeError

#Types

pub(all) struct ImageData {
  width : Int
  height : Int
  num_components : Int
  bits_per_component : Int
  is_signed : Bool
  data : Bytes
}

pub(all) suberror DecodeError {
  InvalidCodestream(String)
  UnsupportedFeature(String)
  DecodeFailed(String)
}

#Package Layout

trkbt10/jpeg2000          — public API (decode, parse)
  src/internal/core       — codestream parsing internals
  src/internal/decoder    — decode pipeline (MQ, T1, DWT, MCT)
  src/cmd/main            — native CLI
  src/cmd/wasm            — wasm CLI

#WASM

moon build --target wasm

#Developer Docs

• docs/dev-testing.md — testing commands
• reference/project-policy.md — project policy
• reference/jpeg2000_coverage_matrix.md — spec coverage matrix