Blackmagic Forum

It may sound funny but i still use Hi8 SD footage sometimes for fun sometimes for VFX.
It seems there is no any way to deinterlace it in Resolve with frame double (25i to 50P).
It was a JES Deinterlacer app, but it is 8 bit only and not developed anymore.
https://jeschot.home.xs4all.nl/home.html#DEI
http://jes.weiss.no/viewforum.php?f=5

May i ask for option in Clip Attributes to Deinterlace footage with with double frame rate?
Also additional threshold fine tune and "Fix jagged edges" option may be helpful

You could use vapoursynth and the QTGMC filter, this filter does motion compensation based deinterlacing frame doubled.

It's currently 8 bit although I think by now most of the code path is 10 bit enabled. But I think for Hi8 video you do not need 10 bit.

The problem is that all those great QTGMC based apps are Windows only and i capture tapes with Intensity Pro capture card to ProRes 10 bit 422. It all noisy and no smooth gradients, but i prefer analogue to digital capture with maximum depth if possible. Every additional app slows down workflow and adds problems with setup of correct data levels and codec combination.
There is a free Deinterlace Yadif OFX plugin from Misc OFX Natron pack. It works ok but it don't do double frame rate in Resolve.

Dmitry Shijan wrote:The problem is that all those great QTGMC based apps are Windows only and i capture tapes with Intensity Pro capture card to ProRes 10 bit 422...

Not true.
You have now (for quite a time actually) perfectly working QTGMC in vapoursynth on Mac (and most likely Linux). It's also not anymore 8bit, but 16bit (or maybe even 32bit float- not sure if all needed filters have this supported).
It's not fast though- about realtime for HD on good machine.

Yadif is not very good, YadifMod is better (but needs another filter to clean up its artefacts), but both are not good for double fps. You need something based on motion estimation for this.

Andrew Kolakowski wrote:It's also not anymore 8bit, but 16bit (or maybe even 32bit float- not sure if all needed filters have this supported).

For QTGMC last time I checked the high-bit version of fft3dfilter was under development for Vapoursynth, I don't think it is released yet but with that we should be able to use a high-bit QTGMC.

https://forum.doom9.org/showthread.php?t=174869

Dmitry Shijan wrote:It all noisy and no smooth gradients, but i prefer analogue to digital capture with maximum depth if possible.

Capturing with a higher bit depth is not going to help.

It does exist now and it's only needed if you want to "manage" noise.

There is now brew based installer for vs as well as for most plugins. There is also .pkg installer with most plugins compiled for your. Check doom9 vs thread.

Imho you should capture in 8 bit PR 422 and use JES D. 3.8.4 including testing its sharpen tool... I'm not sure your Hi8 10 bit capturing habit is relevant btw.

That VapourSynth looks interesting, never hear about it before. Thanks for suggestions!
But is there any chance that we'll see similar options in Resolve someday?

Maybe- BM is looking into improvements.

I would agree - having the option to deinterlace with some basic options (even what VLC gives you) would be awesome.

Dmitry Shijan wrote:That VapourSynth looks interesting, never hear about it before. Thanks for suggestions!
But is there any chance that we'll see similar options in Resolve someday?

There is a Vapoursynth "fatpack" which has practically everything included you might need, so you can start right away:

https://forum.doom9.org/showthread.php?t=175529

The Supervisor Cat controls it all:

I'm on mac, so i'll try to download plugins from this post https://forum.doom9.org/showthread.php?t=175522
P.S. Have no idea why they put those 20K zip archives to folders and upload them as separate files instead one single pack.

Hope it will work with ProRes mov files.