01.10.2021, 20:51
I noticed that a plenty of animation DVDs use some sort of special uncommon telecine logic. In some scenes used real 2:3 Pulldown pattern (3 progressive, 2 interlaced), but in some other scenes sometimes pattern changes and it looks like 4 progressive frames 1 interlaced. Sometimes pattern changes to 1 progressive 1 interlaced. In many cases progressive frames in those uncommon patterns have damaged jagged lines.
Usually there is no 2:3 Pulldown tags in those original VOB files.
MediaInfo detect files as:
29.970 (30000/1001) FPS NTSC
Scan type: Interlaced
Scan order: Top Field First
If i manually set input in Hybrid as Progressive and use TFM of VFM filters, i can output to 29.97 and in worst case scenario i can see that in those problematic dynamic scenes pattern consists of one normal deinterlaced nice looking frame and one similar original frame with jagged lines.
If i add sRestore - it randomly use those jagged frames instead of normal looking duplicates.
If i manually set input in Hybrid as telecine and use VIVTC or TIVTC - i can see that some random pattern sometimes jagged frames may appears instead.
VIVTC/TIVTC can remove most of those problematic frames, but some amount of jagged unfortunately remains. I tried different modes and settings and none of them really helps. Changing Block (x/y) and MI settings to large amounts helps to drop more jagged frames, but same time it adds blending artifacts to other normal frames. So it is not a real solution.
So here are some questions.
Why sRestore and VIVTC or TIVTC select those low quality progressive jagged frames instead of nice looking deinterlaced frames?
Is it some bug in telecine logic related somehow to Hybrid? Maybe some script could be fine tuned to fix this problem?
Or is it some global bug with plugins or with some settings not related to Hybrid that should be discussed in other forum?
Here is small example of source clip https://drive.google.com/file/d/1gIPkJMV...sp=sharing
If use 29.970 framerate problem starts from frame 2342
If use 23.976 framerate problem starts from frame 1873
Input: Progressive
![[Image: SZxaueZ.gif]](https://i.imgur.com/SZxaueZ.gif)
Input: Progressive + TFM
![[Image: ifBHjTK.gif]](https://i.imgur.com/ifBHjTK.gif)
Input: Telecine + TIVTC
![[Image: uiVWEFN.gif]](https://i.imgur.com/uiVWEFN.gif)
Usually there is no 2:3 Pulldown tags in those original VOB files.
MediaInfo detect files as:
29.970 (30000/1001) FPS NTSC
Scan type: Interlaced
Scan order: Top Field First
If i manually set input in Hybrid as Progressive and use TFM of VFM filters, i can output to 29.97 and in worst case scenario i can see that in those problematic dynamic scenes pattern consists of one normal deinterlaced nice looking frame and one similar original frame with jagged lines.
If i add sRestore - it randomly use those jagged frames instead of normal looking duplicates.
If i manually set input in Hybrid as telecine and use VIVTC or TIVTC - i can see that some random pattern sometimes jagged frames may appears instead.
VIVTC/TIVTC can remove most of those problematic frames, but some amount of jagged unfortunately remains. I tried different modes and settings and none of them really helps. Changing Block (x/y) and MI settings to large amounts helps to drop more jagged frames, but same time it adds blending artifacts to other normal frames. So it is not a real solution.
So here are some questions.
Why sRestore and VIVTC or TIVTC select those low quality progressive jagged frames instead of nice looking deinterlaced frames?
Is it some bug in telecine logic related somehow to Hybrid? Maybe some script could be fine tuned to fix this problem?
Or is it some global bug with plugins or with some settings not related to Hybrid that should be discussed in other forum?
Here is small example of source clip https://drive.google.com/file/d/1gIPkJMV...sp=sharing
If use 29.970 framerate problem starts from frame 2342
If use 23.976 framerate problem starts from frame 1873
Input: Progressive
Input: Progressive + TFM
Input: Telecine + TIVTC