I listed the AVCapturePhotoSettings.availablePhotoPixelFormatTypes array in my iPhone 14 during a running photo session and I got these type numbers: 875704422 875704438 1111970369 I have no idea what these numbers mean. How can I use these numbers to look up a human readable string that can tell me what these types are in a way I am familiar with, such as jpeg, tiff, png, bmp, dng, etc, so I know which of these numbers to choose when I instantiate the class: AVCaptureSession?

There is a crash on the closing brace of the photo capture completion handler where commented below. // Initiate image capture: cameraController.captureImage(){ ( image: UIImage?, error: Error? ) in // This closure is the completion handler, it is called when // the picture taking is completed. print( "camera completion handler called." ) guard let image = image else { print(error ?? "Image capture error") return } try? PHPhotoLibrary.shared().performChangesAndWait { PHAssetChangeRequest.creationRequestForAsset(from: image) } // crash here } When step through pauses on that closing brace, and the next step is taken, there is a crash. Once crashed what I see next is assembly code as shown in the below disassembly: libsystem_kernel.dylib`: 0x1e7d4a39c <+0>: mov x16, #0x209 0x1e7d4a3a0 <+4>: svc #0x80 -> 0x1e7d4a3a4 <+8>: b.lo 0x1e7d4a3c4 ; <+40> Thread 11: signal SIGABRT 0x1e7d4a3a8 <+12>: pacibsp 0x1e7d4a3ac <+16>: stp x29, x30, [sp, #-0x10]! 0x1e7d4a3b0 <+20>: mov x29, sp 0x1e7d4a3b4 <+24>: bl 0x1e7d3d984 ; cerror_nocancel 0x1e7d4a3b8 <+28>: mov sp, x29 0x1e7d4a3bc <+32>: ldp x29, x30, [sp], #0x10 0x1e7d4a3c0 <+36>: retab 0x1e7d4a3c4 <+40>: ret Obviously I have screwed up picture taking somewhere. I would much appreciate suggestions on what diagnostics will lead to the resolution of this problem. I can make the entire picture taking code available on request as an attachment. It is too lengthy to post here.

I am following these directions to code picture taking: https://www.appcoda.com/avfoundation-swift-guide/ These directions are for taking jpeg shots. But what is needed is to output to a lossless format such as DNG, PNG, or BMP. How would those instructions be modified to output pictures in a lossless format? Is there a tutorial similar to the one linked to above that explains how to do lossless formats?

I tried various ways to instantiate the class: AVCapturePhotoSettings as listed below: let settings = AVCapturePhotoSettings(format: [ kCVPixelBufferPixelFormatTypeKey : "BGRA"] ) let settings = AVCapturePhotoSettings(format: [ kCVPixelBufferPixelFormatTypeKey as String : "BGRA"] ) let settings = AVCapturePhotoSettings(format: [ String( kCVPixelBufferPixelFormatTypeKey) : "BGRA"] let settings = AVCapturePhotoSettings(format: [ "kCVPixelBufferPixelFormatTypeKey" : "BGRA"] ) The first method gets the error: Cannot convert value of type 'CFString' to expected dictionary key type 'String' and so the three other attempts below this were done, but each of these attempts got the run time error: *** Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '*** +[AVCapturePhotoSettings photoSettingsWithFormat:] Either kCVPixelBufferPixelFormatTypeKey or AVVideoCodecKey must be specified' What is the correct way to use this initiator for the class: AVCapturePhotoSettings ?

The need is to capture an image in an uncompressed format, and save it in a lossless file format. I am not particular about which uncompressed format. However AVCapturePhotoOutput.availablePhotoPixelFormatTypes shows that on my iPhone 14 Pro the BGRA format is available, and its type value is: 1111970369. So I use this code to get a settings object, and trigger a photo capture with it: let settings = AVCapturePhotoSettings(format: [ String( kCVPixelBufferPixelFormatTypeKey ) : 1111970369] ) self.photoOutput?.capturePhoto(with: settings, delegate: self ) I am not sure I have the AVCapturePhotoSettings() dictionary argument right. It is the best I could conclude from available documentation, and it does not produce a compile time error. I found no example how to do uncompress photo files, I found only one that produces jpegs, and I have successfully used that example to capture images in jpeg format. This is the URL for that example which I now attempt to modify to produce uncompressed image files: https://www.appcoda.com/avfoundation-swift-guide/ . This example is somewhat out of date, and some method names had to be changed accordingly. Next, when the system calls the delegated callback: func photoOutput(_ output: AVCapturePhotoOutput, didFinishProcessingPhoto photo: AVCapturePhoto, error: Error?) I need to convert the passed photo.pixelBuffer image object into one I can pass to: self.photoCaptureCompletionBlock?(image, nil) Class UIImage(data: data) çannot do this alone. I get a compile time error when I pass photo.pixelBuffer to it. I tried to convert with the AVCapturePhotoOutput() class, but could not a find version of its initiators the compiler would accept to do this. What do I need to do to get the data in photo.pixelBuffer stored in an uncompressed file?

I followed the directions to capture, and store uncompressed (raw), image files at: https://developer.apple.com/documentation/avfoundation/photo_capture/capturing_photos_in_raw_and_apple_proraw_formats I excluded the thumbnails because they are not needed. When picture taking is attempted the completion handling callback method: RAWCaptureDelegate.photoOutput( _ output: AVCapturePhotoOutput, didFinishProcessingPhoto photo: AVCapturePhoto, error: Error?) is called as expected, but called with its "error" parameter set to the value: Error Domain=AVFoundationErrorDomain Code=-11803 "Cannot Record" UserInfo={AVErrorRecordingFailureDomainKey=3, NSLocalizedDescription=Cannot Record, NSLocalizedRecoverySuggestion=Try recording again.} I do not know what to do about this error. The error message recommends trying again, but the error repeats every time. Any suggestions on possible causes, or how to proceed to find out what is going wrong, would be much appreciated. The device this is run on is an iPhone 14 pro.

I am developing an app that is to be runnable on both Mac Studio, and iPhone 14. The app instance on the Mac communicates with the app's other instance in the iPhone 14. To debug the Bonjour communications I need to run this source code in the debugger in both the Mac Studio simulator, and at the iPhone, simultaneously. The ideal would be to able to step through source code, and set break points, in each app instance simultaneously. Is that possible? If so how?

The need is to persist between launches the state of storyboard objects such as of type UISwitch, UITextField, etc. Can this be done using @AppStorage? If so how can @AppStorage be set to watch these? I tried getting @AppStorage to watch an outlet class member variable that is connected to the storyboard object: @IBOutlet weak var iPhoneName: UITextField! @AppStorage("iPhoneName") var iPhoneName: String = "" This got an error because the variable to be watched is already declared. I decided to make the the watched variable different than the one connected to the Storyboard's UITextField object: @AppStorage("iPhoneName") var striPhoneName: String = "" and got the error: Unknown attribute 'AppStorage' . In what import library is @AppStorage defined? If @AppStorage cannot be used for this, what is the easiest way to code storyboard object persistence? I am looking for an easy, and quick way. I am not concerned with memory usage right now.

The MacStudio has only one account on it, and that is of course an admin account. The password to this account is lost. The MacStudio has an association with my AppleID I log into developer.apple.com with. To recover, this procedure was followed: The recovery mode was entered by holding down the power key for 15 seconds. In the options that appeared the "Forgot all passwords" option was clicked on. I entered the same credentials I log into developer.apple.com with. The credentials were accepted. The shell was launched, and the in the shell the command "resetpasswords" entered. The message: "If you don't know the password for any user on your Mac, you can deactivate your Mac and set new passwords for all users. An internet connection will be required to reactivate your Mac". Beneath this message there was in blue text: "Deactivate Mac". I did not proceed after this because I was not sure what deactivation would mean for the files on the computer. On it there is code written in Swift that needs to be preserved. If the deactivation is done will the files be preserved, and be accessible? Or does a deactivation remove all files?