What does "not supported on pre-TibO" mean?

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Created Jul ’20

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I am getting the following error back on a VNCoreMLTransform's VNImageRequestHandler request:

"exception=CVPixelBuffer input not supported on pre-TibO"

This occurs in the stock WWDC-2020 sample app "ActionAndVision" when trying to detect the game board in the provided sample.mov which comes with the sample XCode project. But I don't know what "pre-TibO" means and not getting any relevant web search hits. I am trying the XCode 12A6159 beta with the default iOS 14.0 SE simulator, and the stock ActionAndVision project from wwdc20-10099 session.

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Answer 1

Resurrection3387 OP

Aug ’20

I'm stuck here too. Did you figure it out?

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Answer 2

Doug_H OP

Aug ’20

It seems the problem here may be using the simulator and not a device with a A12 or newer chip.

Running on my XS Max, prior to iOS 14 beta 5 it gave different errors, but kinda works with beta 5. Not sure if it is the slower speed of my XS Max vs whatever phone was used in the demo, but with the sample movie it takes until the first toss to properly detect and prepare for tracking, making it exclude the first toss from the stats. And after the last toss, the movie ends before it gives all the stats for that toss. Plus since it did not count 8 tosses, it never makes to the summary screen.

I worked around that by editing the video to add more time before the first toss, and adding more time after the final toss so that it counts all 8 tosses and makes it to the summary screen. I assume a faster device may work fine with the sample movie, but the only device available to me with a compatible chip was an XS Max.

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