[MPlayer-users] vop scale differences on mencoder / mplayer

[Chris Phillips]

> [Automatic answer: RTFM (read DOCS, FAQ), also read DOCS/bugreports.html]
> Hi,
> 
> fiddling with mencoder and mplayer and the vop system. something like:
> 
> mplayer -dvd 1 -aid 128 -vop scale=-1:-2,crop=720:430:0:74
> 
> shows a title at 1024x302, while a mencoding with a similar line:

well actually here changing the scale width changes the visual width by a 
factor of 1.42ish (1024/720)...
 
> mencoder -ovc lavc -lavcopts vcodec=mpeg4:vhq:vqmin=2:vbitrate=768 -dvd
> 1 -aid 128 -o rip.avi -vop scale=-1:-2,crop=720:430:0:74
> 
> produces an avi at 720x302. Now i'm half expecting someone to lay into me 
> about using -1 and -2 :P , but surely this effect shouldn't occur? I 
> can't see any conceptual difference here. Can anyone else?
> 
> chris
> xxxx
> 
> 
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