[MEncoder-users] Scaling without Transcoding

[ben27]

Hi,

I try to use mencoder to do a scaling without a transcoding. Is it possible?
I tried several different commands, for example:

 mencoder xxx.avi -ovc copy -vop scale=1024:768 -oac copy -o test.avi

 mencoder xxx.mpeg -oac copy -ovc copy -of mpeg -vop scale=1024:768  -o test.mpeg


I think the copy command can only be used without any other command.

I hope anybody can give me a hint ;)