040000 tree 75031a3a50a14535f16d2ea56c4cc4634768fa91	decoder
040000 tree 16cd749be189f70d04a45b9a8544490181ad03a9	generic
040000 tree 84b454219759bbf70faf2c5bca7028264718abd7	proto
040000 tree 20c7d335f9d0715d2238735439de4c4a35fb63d4	util