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import UIKit | |
import MobileCoreServices.UTCoreTypes | |
if #available(iOS 14.1, *) { | |
let input = Bundle.main.url(forResource: "IMG_0037", withExtension: "HEIC")! | |
let output = FileManager().temporaryDirectory.appendingPathComponent("IMG_0037.GAIN_MAP.BMP") | |
let source = CGImageSourceCreateWithURL(input as CFURL, nil)! | |
// urn:com:apple:photo:2020:aux:hdrgainmap | |
let dataInfo = CGImageSourceCopyAuxiliaryDataInfoAtIndex(source, 0, kCGImageAuxiliaryDataTypeHDRGainMap)! as Dictionary |