Snippet for the loadView function within ARSupportBroadcasterViewController

ARSupportBroadcasterViewController.swift

override func loadView() {
    super.loadView()
    createUI()                                      // init and add the UI elements to the view
    self.view.backgroundColor = UIColor.black       // set the background color 

    // Agora setup
    guard let appID = getValue(withKey: "AppID", within: "keys") else { return } // get the AppID from keys.plist
    let agoraKit = AgoraRtcEngineKit.sharedEngine(withAppId: appID, delegate: self) // - init engine
    agoraKit.setChannelProfile(.communication) // - set channel profile
    let videoConfig = AgoraVideoEncoderConfiguration(size: AgoraVideoDimension1280x720, frameRate: .fps60, bitrate: AgoraVideoBitrateStandard, orientationMode: .fixedPortrait) 
    agoraKit.setVideoEncoderConfiguration(videoConfig) // - set video encoding configuration (dimensions, frame-rate, bitrate, orientation
    agoraKit.enableVideo() // - enable video
    agoraKit.setVideoSource(self.arVideoSource) // - set the video source to the custom AR source
    agoraKit.enableExternalAudioSource(withSampleRate: 44100, channelsPerFrame: 1) // - enable external audio souce (since video and audio are coming from seperate sources)
    self.agoraKit = agoraKit // set a reference to the Agora engine
}