Slanted output

[OldSchool]

I am having this wierd problem. For some reason, all the encodes I do with SBC are slanted and they look like / / that. It seems to encode correctly if I don't use any filters, but if I add any filter, the output gets slanted. I've encoded plenty with SBC before and had no such problem, only recently did this start.

[Swede]

Could be an odd width, try making the result divisable with 16.. Or 8 or whatever, not just an odd number..

[gooki]

If you are using virtualdub/nanadub make sure you crop on your resize filter, and not any of the others.