[MPlayer-users] loosing part of the picture with resizing?

Krzysztof Duchnowski amidk75 at gmail.com
Wed Apr 15 20:20:36 CEST 2009


Bernd Butscheidt pisze:
> Hello,

> I converted a Pal TV recording to avi using lavc and the following
> option to resize the video (original resolution 720*576, aspect ratio
> 16:9):

> -vf scale -sws 2 -zoom -xy 720

> The goal was to create a resolution with an aspect ratio of 16:9.

> The output had the resolution 720*404, so everything seemed fine.

> When I compared the original TV-Recording with my encoding, I noticed
> the a small but noticeable part of the lower picture was missing,
> like I "cropped" some lines instead of resizing them.

> Is this normal when resizing with bicubic? Is there an alternative
> for resizing without being some part of the picture being cropped?

> Thanks for any help in advance Bernd B.


you must use either "-vf scale=720,-2,expand=:::::16/9:16" or "-zoom -xy 
720" but not both


-- 
Krzysztof 'DK75' Duchnowski
GetFirefox - http://www.mozilla.com/firefox/
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