ZSTD_selectEncodingType
stats.LLtype = ZSTD_selectEncodingType(&nextEntropy->litlength_repeatMode,
stats.Offtype = ZSTD_selectEncodingType(&nextEntropy->offcode_repeatMode,
stats.MLtype = ZSTD_selectEncodingType(&nextEntropy->matchlength_repeatMode,
ZSTD_selectEncodingType(