19.08.2021, 11:16
19.08.2021, 11:21
That depends on your source. 
Cu Selur
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- Order: should normally left alone at '-1' which indicates that the detected scan type is used, it's mainly there when telecine content is being deinterlaced
- Select: sets whether the top/bottom fields should be kept after QTGMC when aiming for same rate deinterlacing.
Sometime source have noise/distortions only in one field and the other is visible better in such a case selecting the cleaner field is the better choice. If both field are clean or in the same way 'un-clean' it does not matter.
Cu Selur