I am on Topaz Video 1.3.0.
I am trying to interpolate a video from 24.04 fps to 30 fps. The output with Chronos comes out to 12.01 fps. If I chose 50 fps, it comes out to 20 fps.
Same issue if I set Duplicate frames to off.
Not even FPS changes can produce Variable Frame Rate — this bug has existed since the implementation of MPlayer. TVAI 5.3.6 was the last version without VFR issues.
So, if you convert, for example, 25 to 50 FPS or 30 to 60 FPS without activating “Replace Frame” in the new Topaz Video AI, you will get ok CFR, but for all other, non-even FPS conversions, you should use version 5.3.6 or below. It’s a real shame that Topaz has never been able to fully fix the VFR problem. Luckily, you can install TVAI 5.3.6 alongside Topaz Video, and then simply use whichever version fits the situation.
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I tried with and without Replace frames on and it created the same issue.
It looks like the original could have variable framerate (24.04 fps) and depending how bad the variability is (and the degree of frame duplication), that could cause the problem your seeing.
Without seeing the original first-hand, a complete MediaInfo report might give more insight.
Can you send the logs from the app in so we can pass them along to the devs who are looking into this long-standing issue? help@topazlabs.com
To gather logs, please select Help > Logging > Get Logs for Support and attach the zip file to your reply.
Starting with a variable frame rate video that has an odd rate is rough for the frame interpolation models to address and that is being looked into by the research team still.
Here is a video to help with the steps of how to collect the logs.
I think then it’s your source, convert it into exactly CFR 24fps, audio can be passtrough because your fps change is minimal.
"ffmpeg" -i "input.mp4" -vf "fps=24" -c:v libx264 -preset slow -crf 15 -c:a copy "output.mp4"set path to “ffmpeg.exe” set path and file name “input.mp4” and output.mp4"
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Correct it is the source, converting to CFR with FFMPEG helped! Thank you!!
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