I know my Macbook's webcam has a wide field of view. When I open the Quicktime app and select my MacBooks camera as the input I see a nice wide video feed like this.
Now, I have an iOS app which I'm running using Mac Catalyst. Here is the build combination I am using.
When I run this app I get a significantly cropped version of the video feed from the web cam.
Here is the class where I set up the AVCaptureSession
import Foundation
import AVFoundation
class BasicCamera: ObservableObject {
@Published var authorizationState: AVAuthorizationStatus = .notDetermined
let session = AVCaptureSession()
init() {
guard let device = AVCaptureDevice.default(for: .video) else {
fatalError("Could not make capture device.")
}
guard let input = try? AVCaptureDeviceInput(device: device) else {
fatalError("Could not make input")
}
session.beginConfiguration()
session.addInput(input)
session.commitConfiguration()
session.startRunning()
}
public func requestCameraPermission() async -> AVAuthorizationStatus {
return await withCheckedContinuation({ continuation in
AVCaptureDevice.requestAccess(for: .video) { [unowned self] didComplete in
self.authorizationState = AVCaptureDevice.authorizationStatus(for: .video)
continuation.resume(with: .success(self.authorizationState))
}
})
}
}
And add it to the ViewController like this:
let preview = AVCaptureVideoPreviewLayer(session: session)
preview.removeFromSuperlayer()
preview.frame = self.view.bounds
self.view.layer.insertSublayer(preview, at: 0)
Note that the UIViewController I'm using is brought into SwiftUI via UIViewControllerRepresentable protocol conformance.
I have tried a number of presets and discovery sessions parameters including .buildInWidtAngleCamera but can't seem to get it to show the full camera resolution? Am I out of luck here unless I build it as an actual native Mac Application?
