initializeHuffmanTables

private fn

void initializeHuffmanTables(ref  ubyte[][]  lengths,
       const(uint)[]  mtfFreqs,
       int  nGroups,
       int  alphaSize,
       int  nMTF)

pure nothrow

Initialize Huffman table code lengths based on symbol frequency partitioning.

Creates an initial assignment where each table is responsible for a contiguous range of symbols. Symbols within the table's range get BZ_LESSER_ICOST, symbols outside get BZ_GREATER_ICOST.