CIContext.heifRepresentation not working

Question

Created Sep ’17

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I've been unable to get anything returned by the HEIF methods in iOS 11, namely CIContext's heifRepresentation(of image: format: colorSpace: options:). It always returns nil, no matter what format I use.

guard let image =  CIImage(contentsOf: sourceURL, options: [:]) else{ return }
   
let colorSpace = CGColorSpaceCreateDeviceRGB()

CIContext().heifRepresentation(of: image, format: kCIFormatRGBA8, colorSpace: colorSpace, options: options)//returns nil

Is there a trick, or is this a known issue of the current beta?

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Answer 1

brainfevermedia OP

Oct ’17

Any luck with this? The docs state: The CGColorSpace must be kCGColorSpaceModelRGB

I tried this with no luck so far.

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