return
	}

	// Clear histogram
	for i := range w.literalFreq {
		w.literalFreq[i] = 0
	}

	// Add everything as literals
	histogram(input, w.literalFreq)

	w.literalFreq[endBlockMarker] = 1

	const numLiterals = endBlockMarker + 1
	w.offsetFreq[0] = 1
	const numOffsets = 1

	w.literalEncoding.generate(w.literalFreq, 15)

	// Figure out smallest code.