Have a go with this
/Applications/VLC.app/Contents/MacOS/VLC rtsp://tributary2.rave.ac.uk/floor0.sdp --intf dummy --sout-transcode-audio-sync --sout='#transcode{width=640,height=480,fps=25,vcodec=h264,venc=x264{aud,profile=baseline,level=30,keyint=30,bframes=0,ref=1,nocabac},acodec=mp4a,ab=56,deinterlace}:duplicate{dst=std{access=file,mux=ts,dst=-}}' | mediastreamsegmenter -O -b http://10.0.220.31/~prometeus/ -f ~/sites/ -t 10 -s 4 -D