This library only supports the older, documented Realtime SDK protocol (http://bdml.stanford.edu/twiki/pub/Haptics/MotionDisplayKAUST/RealTimeSDKmanual.pdf) That means that it is very likely to not do what you want, which is to connect to a more modern DataStream server. Datastream is, sadly, a closed protocol that you will have to use the official Vicon SDK for.