[FFmpeg-user] vertical lines noise in scaled raw video.

[Dennis]

On Wed, Nov 9, 2011 at 12:47 PM, Carl Eugen Hoyos <cehoyos at ag.or.at> wrote:

> Dennis <mediastream <at> gmail.com> writes:
>
> > Here's the screenshot with "find edges" filter applied by ImageJ :
> > http://www.mediafire.com/?0hesdf21e6a2ok2
>
> I can see the artefacts now (don't know why I searched for "red" lines).
> Do you think they are in the original video and amplified by the encoding
> (and
> you are searching for a filter that suppresses them), or is FFmpeg
> producing
> them (which may be a serious bug)?
>
> Carl Eugen_______________________________________________
>

well, look at the un-scaled y4m output screenshot here:
http://www.mediafire.com/i/?5m3seip1z8zb4mf
its solid black, i'd expect the same from the scaled screenshot.