[HELP] Telecine Vatiations Problems, Fixes and Questions...

[Selur]

Let's discuss global problems with various types of Telecine content here and collect all possible fixes in one place!

Doesn't make sense without short samples, which:
a. do not cause copyright issues
b. are not too large/long
c. that show horizontal movement

I done some tests with some DVDs and here are some reports:

a. You should look at the content when bobbed, or you should look at the fields when separated. You also need to look at scenes with horizontal movement otherwise you might not see combing artefacts.
b. MediaInfo reports just the output of a few headers, if your source isn't flagged properly nothing it can do.

In both situations newer "TIVTC" with default "Deinterlacer: inner" and other default settings seems works very well and produce slightly less artifacts with animation than older VIVTC deinterlacer. I didn't notice any problems with "jagged lines" in animation that we discussed earlier here and on doom9 forum in 2020.

a. I fixed a bug in how VIVTC was used back in 2020, so old discussions won't help.
b. yes, TIVTC sometimes delivers better results, which is why Hybrid selects it by default on telecine content.
TIVTC will like VIVTC also get 'Fix Telecined Fades' and 'Fix combec with deinterlacer' in some point in time.
Also depending on the source, you might have to run Vinverse/Vinverse2 which are meant to deal with residual combing after telecine.


All the following stuff are just speculations without a source.

• Test DVD 1: sounds like normal telecine, 3:2 pulldown, probably soft telcine
  
• Test DVD 2: sounds like normal telecine, but the source isn't properly flagged
  
• Test DVD 3: sounds like it's not standard telecine.
  Either adjusting the pulldown pattern or Bobbing+sRestore should work.
  
• Test DVD 4: sounds like it's not standard telecine.
  Either adjusting the pulldown pattern or Bobbing+sRestore should work.
  

Cu Selur