offsetFreq:      make([]int32, offsetCodeCount),
		codegen:         make([]uint8, maxNumLit+offsetCodeCount+1),
		literalEncoding: newHuffmanEncoder(maxNumLit),
		codegenEncoding: newHuffmanEncoder(codegenCodeCount),
		offsetEncoding:  newHuffmanEncoder(offsetCodeCount),
	}
}

func (w *huffmanBitWriter) reset(writer io.Writer) {
	w.writer = writer
	w.bits, w.nbits, w.nbytes, w.err = 0, 0, 0, nil
}