Strange artefact when trying to deinterlace (with avisynth and Vapoursynt)

[Platos]

I tried to deinterlace a source (1min source-video in link). But the problem is, the video looks strange after doing that (picture in same link).

It doesn't matter if i use Vapoursynth or Avisynth and it happens on QTGMC and yadif.

It does not happen on an other video, were i also did it some time ago (so i know, it should work).

I use Hybrid. But i think, it is no hybrid-problem, because it works on another video (different series).

https://uploadnow.io/f/Cstk7dD

Can someone say me, what the problem is? Or can someone check with this video, if it's happening too on his side ?

Would be nice.

[Alwyn]

Here's what that file looks like when deinterlaced in Virtual Dub 2 with YADIF (double frame rate, Bottom Field First):


[Attachment 70982 - Click to enlarge]

It is odd that that file is BFF as an AVC. Stepping through the source/original looks like it isn't interlaced, but I'm no expert.

[jagabo]

Someone upscaled interlaced SD as if it was progressive then encoded interlaced. It's basically screwed. You can try using some of the De[X]ResizeMT() functions to downscale back to SD (around 576 lines) and then deinteracing. The trick is finding the right size and inverse resize function. Complicating matters, I suspect the PAL source was field blended from an NTSC source.

[Platos]

(what is BFF as an AVC?) But strange, that i get these Results, when i use Hybrid.

Ok, then i have to use getnative and then rescale?

Because that file comes from disc directly with makemkv. So "someone" is the maker of the disc.

But as always: You get shit when you buy it (german Anime discs are often shit)... In my Opinion this is like scam. Sell sth like that is relaly scam.

I will try that with descale, because i would have done (or try) that anyway, because it is done at 480p or 576p (i dont remember correctly). At peast the first 2 seasions were produced on 480p or 576p.

Probably i will open up another thread in some hours, bevause i will have problems with descale and command-lines xD

[Alwyn]

what is BFF as an AVC

Sorry Platos, BFF is "bottom field first" and AVC is "advanced video codec". I've always considered AVC (H264) as a Progressive format for use on computer/phone/TV screens. The fact that it's being identified as Interlaced when it is not is not good.

[Platos]

Hm ok, but when you look frame by frame you can see clearly these horizontals lines ?

But it is not only frame blending. So if it's really no interlace, what is it then (these horizontal lines) ? And how can i fix it ?

Edit: So actually i wanted to use sRestore combined with deinterlace + bob. So but it won't work.