Same here and if you look at the messages in debug i see the following vlc udp://224.10.0.3:1234 --sout '#transcode{vcodec=mp2v,vb=1500,scale=0.5,acodec=mpga,ab=128,channels=2,samplerate=44100}",dst="std{access=udp,mux=ts,dst=224.10.0.4:1234}' fails with the following messages main debug: ...