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

Carl Eugen Hoyos cehoyos at ag.or.at
Wed Nov 9 18:47:14 CET 2011

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

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