92 lines
2.9 KiB
Swift
92 lines
2.9 KiB
Swift
//
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// CameraDevicesManager.swift
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// VisionCamera
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//
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// Created by Marc Rousavy on 19.09.23.
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// Copyright © 2023 mrousavy. All rights reserved.
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//
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import AVFoundation
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import Foundation
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@objc(CameraDevicesManager)
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class CameraDevicesManager: RCTEventEmitter {
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private let discoverySession = AVCaptureDevice.DiscoverySession(deviceTypes: getAllDeviceTypes(),
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mediaType: .video,
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position: .unspecified)
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private var observer: NSKeyValueObservation?
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private let devicesChangedEventName = "CameraDevicesChanged"
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override init() {
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super.init()
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observer = discoverySession.observe(\.devices) { _, _ in
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self.sendEvent(withName: self.devicesChangedEventName, body: self.getDevicesJson())
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}
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}
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override func invalidate() {
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observer?.invalidate()
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}
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override func supportedEvents() -> [String]! {
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return [devicesChangedEventName]
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}
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override class func requiresMainQueueSetup() -> Bool {
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return false
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}
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override func constantsToExport() -> [AnyHashable: Any]! {
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let devices = getDevicesJson()
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let preferredDevice: [String: Any]?
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// TODO: Remove this #if once Xcode 15 is rolled out
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#if swift(>=5.9)
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if #available(iOS 17.0, *),
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let userPreferred = AVCaptureDevice.userPreferredCamera {
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preferredDevice = userPreferred.toDictionary()
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} else {
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preferredDevice = devices.first
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}
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#else
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preferredDevice = devices.first
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#endif
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return [
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"availableCameraDevices": devices,
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"userPreferredCameraDevice": preferredDevice as Any,
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]
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}
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private func getDevicesJson() -> [[String: Any]] {
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return discoverySession.devices.map {
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return $0.toDictionary()
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}
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}
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private static func getAllDeviceTypes() -> [AVCaptureDevice.DeviceType] {
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var deviceTypes: [AVCaptureDevice.DeviceType] = []
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deviceTypes.append(.builtInDualCamera)
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deviceTypes.append(.builtInWideAngleCamera)
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deviceTypes.append(.builtInTelephotoCamera)
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deviceTypes.append(.builtInTrueDepthCamera)
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if #available(iOS 13.0, *) {
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deviceTypes.append(.builtInTripleCamera)
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deviceTypes.append(.builtInDualWideCamera)
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deviceTypes.append(.builtInUltraWideCamera)
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}
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if #available(iOS 15.4, *) {
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deviceTypes.append(.builtInLiDARDepthCamera)
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}
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// iOS 17 specifics:
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// This is only reported if `NSCameraUseExternalDeviceType` is set to true in Info.plist,
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// otherwise external devices are just reported as wide-angle-cameras
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// deviceTypes.append(.external)
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// This is only reported if `NSCameraUseContinuityCameraDeviceType` is set to true in Info.plist,
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// otherwise continuity camera devices are just reported as wide-angle-cameras
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// deviceTypes.append(.continuityCamera)
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return deviceTypes
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}
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}
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