VTLowLatencyFrameInterpolationConfiguration supported dimensions

Question

Created Oct ’25

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Is there limits on the supported dimension for VTLowLatencyFrameInterpolationConfiguration. Querying VTLowLatencyFrameInterpolationConfiguration.maximumDimensions and VTLowLatencyFrameInterpolationConfiguration.minimumDimensions returns nil. When I try the WWDC sample project EnhancingYourAppWithMachineLearningBasedVideoEffects with a 4k video this statement try frameProcessor.startSession(configuration: configuration) executes but try await frameProcessor.process(parameters: parameters) throws error Error Domain=VTFrameProcessorErrorDomain Code=-19730 "Processor is not initialized" UserInfo={NSLocalizedDescription=Processor is not initialized}.

Also, why is VTLowLatencyFrameInterpolationConfiguration able to run while app is backgrounded but VTFrameRateConversionParameters can't (due to gpu usage)?

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Answer 1

_lospi OP

2w

I am also having the exactly same issue (1:1 actually). On my M1 Pro 16 GB, the maximum dimension is 720p. But is it for all devices, or per device config? How can we obtain it?

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Answer 2

Hugoo OP

1w

hi, guys, their documents is terrible, you can only get the resolution range in header files comment. Besides, did you tried 640x480 resolution in VTFrameRateConversion? I have this problem:https://developer.apple.com/forums/thread/808646

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