[HELP] Frame blending on old telecine, SRestore etc

[tygerbug]

https://www.swisstransfer.com/d/b1dc712d...e5bb58431c

I am restoring some old commercials, which often have old, primitive telecines where there is lots of frame blending and no obvious pulldown.

I have been using Hybrid to do QTGMC bobbing. I haven't learned the other features yet. I could use AviSynth in VirtualDub2 but Hybrid is more user friendly. My attempts to write AviSynth scripts usually fail and I wouldn't know how to fix them.

I am attempting to use SRestore or similar to get this 59.94 video down to 23.976 fps accurately, with as little frame blending as possible. Most frames are blended but some more so than others. There is no obvious pattern.

When I attempt to add SRestore the job crashes immediately, says there is no such filter, or slowly encodes to "500%" and then stalls.

What are the exact steps I should do?

[Selur]

Okay, that source is already highly compressed.
If that is your source, I don't see a way to undo those blends.
sRestore can't help with such blending.
What sRestore does is that it lowers the frame rate by removing frames while trying to mainly remove blended frames.
Your source basically has no unblended frames.
Maybe there is some Stable Diffusion based tool out there that could 'imagine' a cleaned up version, conventional filtering won't work.

Cu Selur

[tygerbug]

Regardless of your opinion of the source, I would like to know how to use SRestore and other filters in Hybrid, because at the moment they are crashing or stalling the program, and I am unsure of the finer points of using the program generally.

In the meantime I have done a simpler decimation of the source.

[Selur]

I would like to know how to use SRestore and other filters in Hybrid

1. get accustomed to the filters integrated into Hybrid
   Depending on whether you are using AviSynth or VapourSynth Hybrid has ui-elements for quite a few filters.
   (Under 'Filtering->AviSynth' or 'Filtering->VapourSynth'.)
   
2. if Hybrid does not support your filter, you can add it into the generated script by one of these two options
   • Writing a custom filter/script addition to add it to the ui.
     
   • Use the 'Custom' sections ('Filtering->Avisynth->Custom','Filtering->Vapoursynth->Custom') to add your own code.
     Remember to read the tool-tips and let Hybrid know if your addition changes the characteristics of the source (dimension, frame rate, color space, ...), otherwise Hybrid assumes there is no change and this might not handle your addition correctly. Also be aware that Hybrid uses portable AviSynth/VapourSynth setups, so you need to take care of the dependencies yourself.
     
   Assuming it's a well documented filter/script, you can also ask me whether I am willing to add 'native' support for the filter in Hybrid.
   Side note: You might want to check the Avisynth/Vapoursynth Script View to check whether Hybrid created the script as you intended.
   

For sRestore Hybrid offers ui-elements under:

• 'Filtering->Vapoursynth->Frame->Reduction->sRestore'
  
• 'Filtering->Avisynth->Frame->Reduction->Restore->sRestore'
  

Note that:

• for Vapoursynth, Hybrid offers quite a few additional options which are by default 'hidden' ('Filtering->Vapoursynth->Misc->UI').
  
• for Hybrid differentiates between handling filters through Filter Order/Queue.
  

I am unsure of the finer points of using the program generally.

Then you might want to click through it some more, look at the generated scripts and get accustomed to what it can offer.

Cu Selur