040000 tree ccf2090ddff81a16f7b0952c6f3856405fcc96af	decoder
040000 tree 1946fbc9e512d3924cb1c143efc4377d1e8f669e	generic
040000 tree 84b454219759bbf70faf2c5bca7028264718abd7	proto
040000 tree 4b802e5d034f3895784b09709fa2d7187d48935f	util