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[HELP] Telecine Vatiations Problems, Fixes and Questions...
#1
Let's discuss global problems with various types of Telecine content here and collect all possible fixes in one place!

For start here is some interesting info about Telecine types: http://www.mplayerhq.hu/DOCS/HTML/en/men...ecine.html

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

Test DVD 1:
In Progressive mode visible Preview as: 2 frames interlaced, 3 frames progressive
Media Info:
Frame rate: 23.976 (24000/1001) FPS
Scan type: Progressive
Scan order: 2:3 Pulldown
Hybrid auto detects Input scan type as: telecine (soft)

Test DVD 2 (animation):
In Progressive mode visible in Preview as: 2 frames interlaced, 3 frames progressive.
Media Info:
Frame rate: 29.970 (29970/1000) FPS
Original frame rate: 29.970 (30000/1001) FPS
Scan type: Interlaced
Scan order: Top Field First
Hybrid auto detects Input scan type as: "Interlaced", but seems everything back to normal after changing in manually to "telecine (soft)"

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.

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Test DVD 3:
In Progressive mode visible in Preview as: 4 frames interlaced, 1 frame progressive.
Frame rate: 29.970 (29970/1000) FPS
Original frame rate: 29.970 (30000/1001) FPS
Scan type: Interlaced
Scan order: Bottom Field First
Here TIVTC seems detects things incorrectly.

Test DVD 4:
In Progressive mode visible in Preview as: 4 frames progressive, 1 frame repeated progressive.
Frame rate: 29.970 (29970/1000) FPS
Original frame rate: 29.970 (30000/1001) FPS
Scan type: Interlaced
Scan order: Bottom Field First
Same problem. TIVTC seems detects this type incorrectly. It attempt to skip repeated frame but due some unknown reason sometimes it keeps doubled frame and skips another normal frame.
Force Progressive input + sRestore also can't convert it to 23.976 correctly.


Any idea what filter or what settings to use and how to deal with 4 frames interlaced, 1 frame progressive, or 4 frames progressive, 1 frame repeated progressive pattern?
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Telecine Vatiations Problems, Fixes and Questions... - by shijan - 09.08.2021, 02:33

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