How to fix this video with Avisynth? [working script provided]

[elektro]

Hi. I have a 45 minutes interlaced (most likely telecined) Full HD NTSC MPEG2 video that looks quite good except some heavy blocking when the light is changing fast. I tried using DGIndex to get a d2v file but it looks scrambled in Avisynth.

So far I wrote this Avisynth script:

SetFilterMTMode("QTGMC", 2)
LWLibavVideoSource("video.mkv")
AssumeTFF()
TFM()
TDecimate()
Deblock(quant=60)
QTGMC(InputType=1, Preset="Medium", EzDenoise=3)
Spline36Resize(960,540)
Prefetch(threads=4)

I used TFM/TDecimate, Deblock, QTGMC's noise reduction and I halved the resolution to reduce the blocking even more. Any way to improve this script? I want to get the best quality out of it to archive it instead of the original.

[manono]

I tried using DGIndex to get a d2v file but it looks scrambled in Avisynth.

If you tried using DGIndex on the MKV, that would be the reason. If the source is a DVD, use it on a VOB. If the MKV is the source, demux first and use DGIndex on the M2V.

[elektro]

I tried using DGIndex to get a d2v file but it looks scrambled in Avisynth.

If you tried using DGIndex on the MKV, that would be the reason. If the source is a DVD, use it on a VOB. If the MKV is the source, demux first and use DGIndex on the M2V.

OK, thanks. Now, how to improve that script?

[Selur]

Now, how to improve that script?

The deblocking&co seem a bit strong to be applied on the whole clip. So splitting the script into sections with different filtering might be a good idea.

[davexnet]

I tried using DGIndex to get a d2v file but it looks scrambled in Avisynth.

If you tried using DGIndex on the MKV, that would be the reason. If the source is a DVD, use it on a VOB. If the MKV is the source, demux first and use DGIndex on the M2V.

OK, thanks. Now, how to improve that script?

Are you talking about the heavy block noise (possibly CCD noise) towards the end of the video?

[elektro]

Are you talking about the heavy block noise (possibly CCD noise) towards the end of the video?

Yes. How to make it less noticeable? I don't mind if it's more blurry.

[Selur]

Folks please to not quote the complete post of others unless it is necessary, it really makes it unnecessary hard to read this thread,.. Thanks!

[davexnet]

Are you talking about the heavy block noise (possibly CCD noise) towards the end of the video?

Yes. How to make it less noticeable? I don't mind if it's more blurry.

Try the old Temporaldegrain script which needs the old version of mvtools (with MVAnalyse) -
it helps a little.

[elektro]

Try the old Temporaldegrain script which needs the old version of mvtools (with MVAnalyse) -
it helps a little.

Thanks. I like the result. What settings did you use? Please post the whole AVS script.

[davexnet]

Default setting

LoadPlugin("i:\plugins\mvtools1.dll")
LoadPlugin("J:\appz38\MeGUI-2715-32\tools\dgindex\DGDecode.dll")
import("i:\plugins\TemporalDegrain.avs")
mpeg2source("C:\Users\davex\Desktop\avs_test\video.d2v")
assumetff()
tfm().tdecimate()
spline36resize(width/2,height/2)
temporaldegrain()