I'm seeing some weird frame order issues that appear to be happening with KNLMeansCL for me. I'm not sure for how long it has been happening because I only noticed recently with some UHD encodes. It may go back a few months.
1. Without KNLMeansCL frames seem to be fine in the output.
2. With d=0 and some values vor s, a and h sometimes a frame is skipped and later on another frame is repeated.
3. With d>0 and particularly with some UHD sources I occasionally but repeatedly get jumbled frames. E.g. for frames 1, 2, 3, 4, 5, 6 I'd get 1, 2, 3, 2, 5, 6 or something like that.
I didn't have time for more tests yet, but wanted to ask if this is a known problem or if anyone knows why this could be happening? Maybe something with the GPU or some buffer? I'm using a Geforce 1060, currently updating drivers.
Here's a sample script from staxrip:
Code:
import os
import sys
ScriptPath = 'D:/stax/staxrip/Apps/Plugins/VS/Scripts'
sys.path.append(os.path.abspath(ScriptPath))
import vapoursynth as vs
core = vs.get_core()
core.std.LoadPlugin(r"D:\stax\staxrip\Apps\Plugins\both\ffms2\ffms2.dll")
core.std.LoadPlugin(r"D:\stax\staxrip\Apps\Plugins\vs\fmtconv\fmtconv.dll")
core.std.LoadPlugin(r"D:\stax\staxrip\Apps\Plugins\both\KNLMeansCL\KNLMeansCL.dll")
clip = core.ffms2.Source(r"D:\clip.mkv", cachefile = r"D:\clip_temp\clip.ffindex")
clip = core.fmtc.bitdepth(clip, bits=16)
clip = core.knlm.KNLMeansCL(clip, d = 2, s = 4, a = 4, h = 0.5)
clip.set_output()