tobyspark / orbit-camera Goto Github PK

Fatal error: Duplicate elements of type 'WeakRef<PreviewMetalView>' were found in a Set.
This usually means either that the type violates Hashable's requirements, or
that members of such a set were mutated after insertion.

class Camera {
    /// Attach a preview view to this camera. Holds a weak reference.
    /// This previews the video coming from the device. A `PreviewMetalView` will fill the view's frame while maintaining the aspect ratio.
    /// As currently set, the frames sent to the preview are 1920x1080. The view renders this onto whatever the size frame is, for a square frame this will visually match the 1080x1080 recorded output.
    func attachPreview(to view: PreviewMetalView) {
        #if !targetEnvironment(simulator)
        videoDataDelegate.queue.async {
            view.rotation = .rotate180Degrees
            // Holding a weak ref should allow 'detach' of the views.
            let result = self.previewViews.insert(WeakRef(object: view))
            if result.inserted {
                os_log("Camera adding preview", type: .debug)
            }
        }
        start()
        #endif
    }