I finally found parameters which work quite well for my purposes: :sout=#transcode{vcodec=h264,vb=600,width=360,height=272,fps=25,venc=x264{me=dia,subme=1,analyse=none,bframes=0,b-adapt=none,chroma-me=none,merange=12},acodec=mp3,ab=48,channels=2}:duplicate{dst=std{access=http,mux=asf,url=0.0.0.0:123...