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14th November 2020, 12:27 | #1 | Link |
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Join Date: Aug 2018
Posts: 21
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Help choosing deint and/or TIVTC for this clip?
Few seconds video clip here https://www.dropbox.com/s/649guaf2vvie5x0/clip.mkv?dl=0 (5MB)
I'm working with the above source video from DVD. Not sure how to say for certain if this is telecined or not, but I assume so. I've tried using different combinations of QTGMC, VFM and VDecimate to prepare it for encoding. QTGMC removes interlacing but doesn't remove blending. VFM and Vdecimate removes blending but leaves combing lines. I've tried combining both, but I wonder is this really the best way. There are still frames that look blended, and maybe this is more quality loss than necessary. Code:
video = haf.QTGMC(video, Preset='Slower', FPSDivisor=2, TFF=True) video = core.vivtc.VFM(video, order=1, cthresh=10) video = core.vivtc.VDecimate(video) Last edited by outhud; 14th November 2020 at 12:53. |
14th November 2020, 15:08 | #2 | Link |
Pig on the wing
Join Date: Mar 2002
Location: Finland
Posts: 5,731
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If it's blended, take a look at SRestore (in the havsfunc package).
Something like this: Code:
from vapoursynth import core import havsfunc as haf clp = core.ffms2.Source(source=r"f:\temp\captures\clip.mkv") clp = core.nnedi3.nnedi3(clp, field=2) clp = haf.srestore(clp, frate=25, speed=-1) clp.set_output()
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14th November 2020, 16:51 | #3 | Link | |
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Quote:
This looks perfect, no blending and no comb lines. My only question is about frate 25. Is this OK to use for a NTSC DVD? The DVD is 29.97fps, but it's a US release of a European movie, so maybe 25 is correct. |
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14th November 2020, 18:03 | #4 | Link |
Pig on the wing
Join Date: Mar 2002
Location: Finland
Posts: 5,731
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The sloppy 25 -> 29.97 fps conversion is quite common in such cases, and it happens also with blu-rays. SRestore is used to undo the process so in this case, it returns the original framerate and progressive frames. If you were to encode the result as MPEG2 and put that back on a DVD, it would not be compliant. In that case you could encode it and then use DGPulldown on the result to do a 25->29.97 fps pulldown to make it compliant for authoring.
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