selector[,selector] where 'selector' are from:
    * no-audio, noaudio, audio
    * no-video, novideo, video
    * no-spu,   nospu,   spu
    * es=num or es=num_start-num_end
    * prgm=num or prgm=num_start-num_end (you can also use program
    instead of prgm)
 It applies for the last dst. selector1,selector2 means selector1 and
selector2.
 Ex:
    vlc file --sout '#duplicate{dst="1� dst", select="selection for 1� dst",
dst="2� dst", dst="3� dst", select="selection for 3� dst" }'