[Help] 25fps PAL video mastered at 24fps with dupe frames

[SpaceBlackKnight]

Hi all, I have a video source that shows as 23.976p but exhibits a "skip" or freeze every second or couple of frames. Now comparing the other 24fps sourced source I have (which unfortunately exhibits some kind of blended frames with baked in interlaced scanlines  ) I'm 100% positive this one was a 4% sped up PAL master as the pitch is higher and runs shorter than the 24fps frame blended source. The 25fps source, aside the dupe frames thanks to the botched 24fps conversion, appeared to have been natively progressive and didn't exhibit any blended frames. 

At worst, I could buy the title in question on BD since it should be available in the proper frame rate, and avoid further headaches with screwed up encodes by airheaded uploaders. However, if this were a title not readily available and extremely rare to come by, plus being the only file out there with a screwed up fps like my example, what would be the best way to fix it? 

I will provide footage via PM on request.

[jaminmc]

You could always try the pullup in ffmpeg....

Code:

ffmpeg -i source.mp4 -vf pullup,fps=24000/1001 -crf 18 -c:a copy out.mp4

[Chewtobacca]

At worst, I could buy the title in question on BD...

That sounds like the best option to me.

[SpaceBlackKnight]

You could always try the pullup in ffmpeg....

Code:

ffmpeg -i source.mp4 -vf pullup,fps=24000/1001 -crf 18 -c:a copy out.mp4

I tired that, but it still introduced another dupe frame after the original one. Guess my source was pretty wacked up then.

At worst, I could buy the title in question on BD...

That sounds like the best option to me.

And so I did. Even though it was less than $15 on Amazon Warehouse used, it runs the proper 25fps without dupes and I don't have to waste time scrounging around for a decent copy.

Case you wonder, the title in question was the original Umbrella BD of Razorback, which has a different transfer than the 4k remastered version. The BD rips I had found were a shit quality 1080p YIFY of the remastered BD running 25fps, and a 720p 24fps rip of the 1080i 25fps BD that the 1080p file I had was probably made from.