040000 tree 4cf3495a81a28ce2150a4dc29188c4d2c1ac9abe	decoder
040000 tree cdda65f17e73edd32397d0de91801f2edfbb1e55	generic
040000 tree 84b454219759bbf70faf2c5bca7028264718abd7	proto
040000 tree 1bd654102805f6b0059aabeb5854bf85181c606d	util