040000 tree 21b56dd3f37a1571622f4072ab54e20f81f0d932	decoder
040000 tree 71b798b5ac03ce3abd5df6e4286c06c7d453b04a	generic
040000 tree 84b454219759bbf70faf2c5bca7028264718abd7	proto
040000 tree a2c0f2879c72e444ab9273e57ccbe0945e362231	util