I find out that i can zoom in with e and zoom out with w.
w panscan -0.1 # zoom out with -panscan 0 -fs
e panscan +0.1 # in
But the effect of zooming is very small.
So i try to change the value of panscan e.g. to +1.0
in my ./mplayer/input.conf
. After changeing the value mplayer zooms in now the max. possible zoomfactor, by pressing e just once.
That's not the effect i what, is there a way to increase the zooming-factor in mplayer?