fourdgsShLadders top-level constant

Map<String, List<int>> const fourdgsShLadders

Named per-band ladders, band 1 first, as website/docs/reference/compression.md measures them.

Band energy falls with degree, so every ladder here spends fewer bits as the band index rises; a producer may pass any list in the legal range.

Implementation

const Map<String, List<int>> fourdgsShLadders = <String, List<int>>{
  'flat': <int>[8, 8, 8],
  'balanced': <int>[8, 6, 5],
  'aggressive': <int>[6, 4, 3],
};