Capturing VHS with OBS and deinterlacing with Yadif 2x

[Alwyn]

This clip is progressive.

But each frame is different (when doublerate deinterlaced). There is major motion at every second frame, but the following frame is also (just) different; but it's certainly not the same. Your GIF shows this. Isn't this video PSF, as per post #18?

[Sharc]

Clip is progressive


[Attachment 80345 - Click to enlarge]

Thanks for that .
Most of my captures are like this
How should progressive source be handled?

It should be handled progressive.

(just make sure that the capture SW does not unintended deinterlace the video)

[lollo]

This clip is progressive.

But each frame is different (when doublerate deinterlaced). There is major motion at every second frame, but the following frame is also (just) different; but it's certainly not the same. Your GIF shows this. Isn't this video PSF, as per post #18?

https://forum.videohelp.com/threads/413554-Deinterlacing-in-2024/page5#post2735907

[VHSvideocapture]

But each frame is different (when doublerate deinterlaced). There is major motion at every second frame, but the following frame is also (just) different; but it's certainly not the same. Your GIF shows this. Isn't this video PSF, as per post #18?

I'm confused I'm going to be adding another clip direct stream copy

[VHSvideocapture]

Here is another clip
VirtualDub direct stream copy
The colorspace should be correct this time.
Lagrith codec used, Lagrith does not flag interlacing always shows progressive but I don't think it is.
https://files.videohelp.com/u/308503/riceD.avi

Thanks everyone for helping

[Sharc]

The video is progressive (PsF), as before. There is no motion between the even and the odd field. Separating the fields and stepping through the fields gives a pattern like aabbccddeeffgghh..., with motion between the pairs only.

This is how interlaced would look like. Now you see motion between every field, not just between pairs of fields.

[lollo]

Here is another clip

As Sharc already said this is again a "progressive" video, aka PsF.

You should get familiar with AviSynth and check the fields architecture by yourself. Here a simple script. You load it in VirtualdDub (for example) and step field-by-field analyzing the pattern repetition (aabbccddeeffgghh... in this case, as Sharc explained, meaning "progressive "source).

video_org=AviSource("riceD.avi")

# separate fields tff
video_org_sep_tff=video_org.AssumeTFF().separateFields()

	# to check if progressive or interlaced
return(video_org_sep_tff)

[Sharc]

As a demo here a comparison of the 2 variants side-by-side, after separating the fields and stepping in slow motion through the fields as per Lollo's instructions.

Left is your progressive (aka PsF) source. Right is what you would get if your source were interlaced. You see that the progressive (PsF) version has motion with every 2 fields only, while the interlaced variant has motion with every field advancement.

[Alwyn]

Clip is progressive

How should progressive source be handled?

Is this correct?

"For a progressive or PSF source, don't deinterlace, just encode it as-is into whatever final format you want"?