Help with IVTC on lousy source material

crazyjpeters · 14th April 2021, 20:42

I'm trying to transfer Family Matters dvd collection to my plex server. It's telecined 3:2 stuff. Holy cow is it garbage stuff. Even after TFM and TDecimate, it still has combing in some places noticably. The blockiness from all the MPEG2 is ugly.

I'm trying to get the aspect ratio corrected. My dvd player or my tv isn't displaying correctly, and I can't seem to get it corrected, otherwise I'd just save them as is. After trying to correct aspect ratio and IVTC, it's staying about the same size as original, and I wouldn't mind getting the video improved so I can get the size down.

Does anyone do 2-pass TIVTC?
What kind of scripts and filters is everyone using to clean up garbagey NTSC DVD live tv shows (ie not anime / cartoon).

Sorry for the noobieness. I've been out of video processing since the DivX/Xvid days, and getting my feet wet again is painful this time.

johnmeyer · 14th April 2021, 21:48

You have to post an un-encoded sample to get able to get much help.

The TIVTC DLL for AVISynth can handle just about any telecine situation, including cleaning up residual combing. The default script is:

Code:

TFM()
TDecimate()

It sounds like this is what you're already using. If the defaults don't work, then you need to play around with pp and micmatch parameters. Also, many telecined sources are not simply 3:2 pulldown. You need to walk very carefully through several minutes of your source, at different points in the video, and do so not just one frame at a time, but one field at a time -- use separatefields() or bob().

crazyjpeters · 15th April 2021, 19:24

Sorry, trying to find time to do this. Can you access this? It's probably not the worst clip, just average.

https://www.mediafire.com/file/0t177..._clip.zip/file

johnmeyer · 15th April 2021, 20:59

It is standard 3:2 pulldown and using TFM() TDecimate(), as I showed in the script above, works perfectly.

crazyjpeters · 16th April 2021, 02:16

Is there anything that I could be doing to remove some of the artifacts / blockiness / and minor combing that’s left over?

patul · 16th April 2021, 04:16

Can you try this script?

Code:

AssumeTFF()
TFM()
TDecimate()
#remove minor combing
vInverse() 

#denoise
FastDegrain()  
#deband
neo_f3kdb() 

Blur(0,1.0).Sharpen(0,0.8)

Change the denoiser and debanding filter as per your liking, I like FastDegrain because, well, it's fast. And you need to tune them according to the video itself. I typically use default, since am just a script kiddy and I don't really know the details.

crazyjpeters · 16th April 2021, 18:06

After fiddling with it a bit it works ok.

Since I'm pulling in MKV container MPEG2, what's the best way to deblock / dering it? Lots of scripts I see use DGindex, but I don't think that will work for me.

17th April 2021, 01:26

Quote:

Originally Posted by crazyjpeters

Since I'm pulling in MKV container MPEG2, what's the best way to deblock / dering it? Lots of scripts I see use DGindex, but I don't think that will work for me.

Yes, it's not a good idea to use DGIndex with MKVs. Presumably, you are using MakeMKV to rip discs; otherwise, I don't see why you'd end up with MPEG-2 in an MKV in the first place. You could simply demux the video to an elementary stream, and then use DGIndex as usual -- no problem there. Its deblocking capabilities are fine for quick work when the blocking is fairly light, and you don't want to bother with an extra plugin. I used to do that on occasion.

For more serious blocking, you can try something like Deblock_QED. It's probably worth reading the thread to find the most up-to-date build. It's been a while since I did any deblocking of MPEG-2...

kedautinh12 · 17th April 2021, 01:41

you can use smoothD2 can deblock any blocky

hello_hello · 21st April 2021, 11:50

My god what an awful show. Seriously, seriously awful.
I remuxed the sample as a TS file with TSMuxer so I could index with DGIndex and deblock with DGDecode. Here's some thoughts...

S2_E09_Sample.mkv

DGDecode_mpeg2source("D:\S2_E09_clip.d2v", cpu=4)
LUTDeCrawl()
TFM(pp=5, Chroma=true)
TDecimate()
MAA()
A = Last
MergeChroma(A, AwarpSharp2(A, Depth=20))
QTGMC(InputType=1, EzDenoise=1)
CropResize(624,468, 18,6,-18,-6, InDAR=15.0/11.0)
B = Last
Soothe(LSFMod(B), B)
GradFun3()

real.finder · 21st April 2021, 12:25

maybe try with this https://github.com/realfinder/AVS-St...odeblock2.avsi AutoDeblock2/AutoDeblock3

also maybe we can emulate mpeg2source deblock? since we got frame properties in d2vsource, but it will be with another deblocker since mpeg2source use BlindPP and that has no Modern port yet

14th April 2021, 20:42	#1 \| Link
crazyjpeters Registered User Join Date: Jan 2019 Posts: 5	Help with IVTC on lousy source material I'm trying to transfer Family Matters dvd collection to my plex server. It's telecined 3:2 stuff. Holy cow is it garbage stuff. Even after TFM and TDecimate, it still has combing in some places noticably. The blockiness from all the MPEG2 is ugly. I'm trying to get the aspect ratio corrected. My dvd player or my tv isn't displaying correctly, and I can't seem to get it corrected, otherwise I'd just save them as is. After trying to correct aspect ratio and IVTC, it's staying about the same size as original, and I wouldn't mind getting the video improved so I can get the size down. Does anyone do 2-pass TIVTC? What kind of scripts and filters is everyone using to clean up garbagey NTSC DVD live tv shows (ie not anime / cartoon). Sorry for the noobieness. I've been out of video processing since the DivX/Xvid days, and getting my feet wet again is painful this time.

14th April 2021, 21:48	#2 \| Link
johnmeyer Registered User Join Date: Feb 2002 Location: California Posts: 2,695	You have to post an un-encoded sample to get able to get much help. The TIVTC DLL for AVISynth can handle just about any telecine situation, including cleaning up residual combing. The default script is: Code: TFM() TDecimate() It sounds like this is what you're already using. If the defaults don't work, then you need to play around with pp and micmatch parameters. Also, many telecined sources are not simply 3:2 pulldown. You need to walk very carefully through several minutes of your source, at different points in the video, and do so not just one frame at a time, but one field at a time -- use separatefields() or bob(). Last edited by johnmeyer; 14th April 2021 at 21:50.

16th April 2021, 04:16	#6 \| Link
patul Registered User Join Date: Sep 2005 Posts: 130	Can you try this script? Code: AssumeTFF() TFM() TDecimate() #remove minor combing vInverse() #denoise FastDegrain() #deband neo_f3kdb() Blur(0,1.0).Sharpen(0,0.8) Change the denoiser and debanding filter as per your liking, I like FastDegrain because, well, it's fast. And you need to tune them according to the video itself. I typically use default, since am just a script kiddy and I don't really know the details.

21st April 2021, 12:25	#11 \| Link
real.finder Registered User Join Date: Jan 2012 Location: Mesopotamia Posts: 2,587	maybe try with this https://github.com/realfinder/AVS-St...odeblock2.avsi AutoDeblock2/AutoDeblock3 also maybe we can emulate mpeg2source deblock? since we got frame properties in d2vsource, but it will be with another deblocker since mpeg2source use BlindPP and that has no Modern port yet __________________ See My Avisynth Stuff

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15th April 2021, 19:24	#3 \| Link
crazyjpeters Registered User Join Date: Jan 2019 Posts: 5	Sorry, trying to find time to do this. Can you access this? It's probably not the worst clip, just average. https://www.mediafire.com/file/0t177..._clip.zip/file

15th April 2021, 20:59	#4 \| Link
johnmeyer Registered User Join Date: Feb 2002 Location: California Posts: 2,695	It is standard 3:2 pulldown and using TFM() TDecimate(), as I showed in the script above, works perfectly.

16th April 2021, 02:16	#5 \| Link
crazyjpeters Registered User Join Date: Jan 2019 Posts: 5	Is there anything that I could be doing to remove some of the artifacts / blockiness / and minor combing that’s left over?

16th April 2021, 18:06	#7 \| Link
crazyjpeters Registered User Join Date: Jan 2019 Posts: 5	After fiddling with it a bit it works ok. Since I'm pulling in MKV container MPEG2, what's the best way to deblock / dering it? Lots of scripts I see use DGindex, but I don't think that will work for me.

17th April 2021, 01:41	#9 \| Link
kedautinh12 Registered User Join Date: Jan 2018 Posts: 2,156	you can use smoothD2 can deblock any blocky

21st April 2021, 11:50	#10 \| Link
hello_hello Registered User Join Date: Mar 2011 Posts: 4,829	My god what an awful show. Seriously, seriously awful. I remuxed the sample as a TS file with TSMuxer so I could index with DGIndex and deblock with DGDecode. Here's some thoughts... S2_E09_Sample.mkv DGDecode_mpeg2source("D:\S2_E09_clip.d2v", cpu=4) LUTDeCrawl() TFM(pp=5, Chroma=true) TDecimate() MAA() A = Last MergeChroma(A, AwarpSharp2(A, Depth=20)) QTGMC(InputType=1, EzDenoise=1) CropResize(624,468, 18,6,-18,-6, InDAR=15.0/11.0) B = Last Soothe(LSFMod(B), B) GradFun3()