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The framerate shaper filter does a couple of things. First, it drops or duplicates frames if you have selected constant or peak frame rate settings. Second, it smooths out the framerate of telecined video which is uneven due to how telecine works.
Although I had to enable detelecine to get a completely smooth playback when dealing with a "complex' source. 25 fps material was captured at 60 fps (there were reasons for this..) and then I needed it be encoded at 25 fps. I tried different tools and at first I though just using fps filter was enough but when I started watching the whole video I noticed some micro stuttering here and there, so then I tried using other different filters and adding a simple detelecine(default) helped to completely eliminate this problem.
There are pending improvements to the vfr file that may fix issues with upsampled framerates such as yours without the need to jump through hoops. I can't tell if it applies to your scenario without an activity log though.
JohnAStebbins wrote:There are pending improvements to the vfr file that may fix issues with upsampled framerates such as yours without the need to jump through hoops. I can't tell if it applies to your scenario without an activity log though.
Nice
Anyways, I was too optimistic tbh. It looks like there are still micro stutters here and there and it seems enabling detelecine even increased them .Still, atm this shaper does a really good job at fixing messed up files like I have
Btw, does 2 pass encoding increase effectiveness(helps to determine better duplicate frames) of framerate shaper compared to crf encoding?
