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Old 17th December 2018, 00:50   #1  |  Link
cafevincent
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doubling playback framerate (in mpc-hc) by adding interlaced frames?

I am playing around with SVP (smooth video project) and I can't help but think that a simple interlaced frame insertion method (or whatever name it carries) might produce double framerate with less noticeable artifacts than SVP. I would like to try this, is it possible to try something like this (using MPC-HC as the player)?
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Old 17th December 2018, 01:00   #2  |  Link
Asmodian
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On an interlaced display this might be true, but on our current progressive sample and hold displays it would be horrible.

edit: you can do it pretty easily with Avisynth but it won't look good. This is called Telecine or 2:2 Pulldown and usually the point is to remove it for non-interlaced displays.
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Old 17th December 2018, 01:10   #3  |  Link
cafevincent
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Quote:
Originally Posted by Asmodian View Post
On an interlaced display this might be true, but on our current progressive sample and hold displays it would be horrible.
because the interjected interlaced-looking frame would have to be drawn progressively? meaning this would lessen the smooth high-framerate feel?

then is this SVP the go-to product for this sort of thing? no alternatives?
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Old 17th December 2018, 01:33   #4  |  Link
huhn
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if you are interlance a progressive source you are not getting more frames.

and if you apply a frame addptive deinterlancer(which are considered as one of the better deinterlancer) on a progressive source it will just double each frame so nothing really changes.

if you run it without a frame adaptive deinterlancer like nnedi you will just end up with doubles the frame number and half the resolution plus frame wobbling.
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Old 17th December 2018, 01:46   #5  |  Link
cafevincent
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ok then this is what I mean: we have original frames 1 and 2. we want to add frame B to go in between 1 and 2. for this we take half the lines of frame 1 and drop the rest, take another half of lines from frame 2 and drop the rest. combine for a "fake" interlaced looking frame with combing being the only artifacts, which IMO should be lesser than those huge artifacts present in SVP.

Last edited by cafevincent; 17th December 2018 at 01:51.
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Old 17th December 2018, 01:54   #6  |  Link
huhn
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ever watched an interlanced file with out deinterlancer?
it would be just like that. it doesn'T even make the image smoother it just destroys it.

BTW. doing that on an 24 hz file will end up with 48 hz which is a already a problem.

i'm not using avisynth for a while but interlancering the 24 hz stream and than interleaving it with the orginal stream would create this abomination.
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Old 17th December 2018, 02:03   #7  |  Link
cafevincent
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48 is not a standard of any kind but that's totally fine. doubling the framerate is the best option in SVP too, too many inserted frames just brings out more artifacts per second, with hardly any noticeable added smoothness. I am currently testing this method, not sure how it works exactly... double framerate with latest mpc mini guide
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Old 17th December 2018, 02:23   #8  |  Link
huhn
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that's frame adaptive deinterlancing you can just go use madVR and press control+shift+alt +d to actived deinterlancing and the results is repeated frames nothing else. not a signal new frame will be created.

48 hz played at 60 hz will create the same kind of judder as 24 hz at 60 hz not smooth at all.
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