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vcamapp · Feb 11, 2023 · 45eaa86 · 45eaa86
1 parent a408ee4
commit 45eaa86
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Showing 2 changed files with 32 additions and 4 deletions.
diff --git a/app/xcode/Sources/VCamCamera/Camera.swift b/app/xcode/Sources/VCamCamera/Camera.swift
@@ -7,8 +7,33 @@
 
 import AVFoundation
 import CoreMediaIO
+import VCamEntity
 
 public enum Camera {
+    private static var cachedDevices: [AVCaptureDevice] = [] {
+        didSet {
+            NotificationCenter.default.post(name: .deviceWasChanged, object: nil)
+        }
+    }
+
+    public static func configure() {
+        let updateCache = {
+            Camera.enableDalDevices()
+            let deviceDiscoverySession = AVCaptureDevice.DiscoverySession(deviceTypes: [.builtInWideAngleCamera, .externalUnknown], mediaType: nil, position: .unspecified)
+            cachedDevices = deviceDiscoverySession.devices.filter { $0.uniqueID != "vcam-device" }
+        }
+
+        updateCache()
+
+        NotificationCenter.default.addObserver(forName: .AVCaptureDeviceWasConnected, object: nil, queue: .main) { _ in
+            updateCache()
+        }
+
+        NotificationCenter.default.addObserver(forName: .AVCaptureDeviceWasDisconnected, object: nil, queue: .main) { _ in
+            updateCache()
+        }
+    }
+
     public static var hasCamera: Bool {
         defaultCaptureDevice != nil
     }
@@ -30,13 +55,15 @@ public enum Camera {
     }
 
     public static func cameras(type: AVMediaType? = .video) -> [AVCaptureDevice] {
-        enableDalDevices()
-        let deviceDiscoverySession = AVCaptureDevice.DiscoverySession(deviceTypes: [.builtInWideAngleCamera, .externalUnknown], mediaType: type, position: .unspecified)
-        return deviceDiscoverySession.devices.filter { $0.uniqueID != "vcam-device" }
+        if let type {
+            return cachedDevices.filter { $0.hasMediaType(type) }
+        } else {
+            return cachedDevices
+        }
     }
 
     public static func camera(id: String?) -> AVCaptureDevice? {
-        cameras().first { $0.uniqueID == id }
+        cachedDevices.first { $0.uniqueID == id }
     }
 
     public static func searchHighestResolutionFormat(for device: AVCaptureDevice) -> (format: AVCaptureDevice.Format, resolution: CGSize)? {

diff --git a/...ces/VCamUI/Extensions/Notification+.swift → ...de/Sources/VCamEntity/Notification+.swift b/...ces/VCamUI/Extensions/Notification+.swift → ...de/Sources/VCamEntity/Notification+.swift
@@ -10,4 +10,5 @@ import Foundation
 public extension Notification.Name {
     static let reloadUI = Notification.Name("vcam.reloadUI")
     static let showEmojiPicker = Notification.Name("vcam.showEmojiPicker")
+    static let deviceWasChanged = Notification.Name("vcam.deviceWasChanged")
 }