numCodegens--
	}
	header := 3 + 5 + 5 + 4 + (3 * numCodegens) +
		w.codegenEncoding.bitLength(w.codegenFreq[:]) +
		int(w.codegenFreq[16])*2 +
		int(w.codegenFreq[17])*3 +
		int(w.codegenFreq[18])*7
	size = header +
		litEnc.bitLength(w.literalFreq) +
		offEnc.bitLength(w.offsetFreq) +
		extraBits

	return size, numCodegens
}