Write gradient filters to output stream?

[Scorp1us]

I am trying to save a file with gradient filters applied. Below is the command line I am trying but it only outputs the original video, transcoded, without the graient filters

vlc --sout "#transcode{width=320,height=240,fps=25,vcodec=h264,vb=256,venc=x264{aud,profile=baseline,level=30,keyint=30,ref=1},acodec=mp3,ab=96}:std{mux=ps,dst=\"out.mp4\",access=file}" --sout-transcode-vfilter adjust --gradient-mode=gradient --gradient-type=0 --gradient-cartoon ~/downloads/webdownload.wmv vlc://quit


what an i missing?