i get the same error too while real time encoding . cvlc -v --udp-caching=3000 --ts-es-id-pid --programs=258,1,513,257 dvb:// --dvb-adapter=0 --dvb-frequency=578000000 --sout '#transcode{vcodec=mpgv,venc=ffmpeg,vb=1536,height=440,height=300,fps=25,hq}:duplicate{dst=std{access=udp,mux=ts,dst=239.255....