This is a Windows command line, but it's similar on Linux: :sout=#transcode{vcodec=DIV3,vb=1024,scale=1,acodec=mp3,ab=192,channels=2}:duplicate{dst=std{access=mmsh,mux=ASFH,url=:1234}} It says to take whatever the source is, turn it into 1024K DIV3/192K mp3, and output it as mmsh, available on port ...