mencoder strange handle spaces in option list separated by ':'

[b3nder@…]

While execution of this not propertly formed (pay attention to the space in "width=720: height=576" ) string mencoder ingores its option -vf despite of it position after "buggy" place. Btw other options are not being droppped.

mencoder tv:// \

-tv driver=v4l:width=720: height=576:freq=383.250:input=0 \
-ovc lavc -lavcopts vcodec=mpeg4:vbitrate=500:keyint=50 \
-vf kerndeint,crop=300:300:8:8,hqdn3d \
-o out.avi

Or less specific example

mencoder in.avi -ovc lavc -lavcopts vcodec=libx264: vbitrate=500 \

-vf kerndeint,crop=300:300:8:8,hqdn3d -o out.avi

Output showes empty filters list:

Read output about filters:

Opening video filter: [expand osd=1]
Expand: -1 x -1, -1 ; -1, osd: 1, aspect: 0.000000, round: 1

[reimar]

With the space, "height=576:freq=383.250:input=0" becomes a second filename.
Thus, all the following "non-global" options only apply to that file, not to the first one ("tv://").
Put options like -vf in the front to make them apply to all files given.