122 lines
5.4 KiB
Swift
122 lines
5.4 KiB
Swift
//
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// BBBSampleHandler.swift
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//
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// Created by Tiago Daniel Jacobs on 11/03/22.
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//
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import ReplayKit
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import os
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import bigbluebutton_mobile_sdk_common
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open class BBBSampleHandler : RPBroadcastSampleHandler {
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// Logger (these messages are displayed in the console application)
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private var logger = os.Logger(subsystem: "BigBlueButtonMobileSDK", category: "BBBSampleHandler")
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private var appGroupName:String = "";
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private var createOfferCallObserver:NSKeyValueObservation?;
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private var setRemoteSDPCallObserver:NSKeyValueObservation?;
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private var screenBroadcaster:ScreenBroadcaster?;
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open func setAppGroupName(appGroupName:String) {
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logger.info("Received appGroupName: \(appGroupName)")
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self.appGroupName = appGroupName
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}
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// Called by IOS when the user authorized to start the broadcast
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open override func broadcastStarted(withSetupInfo setupInfo: [String : NSObject]?) {
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logger.info("ReplayKit2 event - broadcastStarted")
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// Object used to share data
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let userDefaults = BBBSharedData
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.getUserDefaults(appGroupName: self.appGroupName)
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// Notify the UI app that the broadcast has been started
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logger.info("ReplayKit2 event - broadcastStarted - persisting information on UserDefaults")
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userDefaults.set(BBBSharedData.generatePayload(), forKey: BBBSharedData.SharedData.broadcastStarted)
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self.screenBroadcaster = ScreenBroadcaster(appGroupName: appGroupName)
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// Listen for createOffer requests from the UI APP
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logger.info("Configuring observer for createOffer")
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self.createOfferCallObserver = userDefaults.observe(\.createScreenShareOffer, options: [.new]) { (defaults, change) in
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self.logger.info("Observer detected a createScreenShareOffer request!")
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Task.init {
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let optionalSdp = await self.screenBroadcaster?.createOffer()
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if(optionalSdp != nil){
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let sdp = optionalSdp!
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self.logger.info("Got SDP back from screenBroadcaster: \(sdp)")
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BBBSharedData
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.getUserDefaults(appGroupName: self.appGroupName)
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.set(BBBSharedData.generatePayload(properties: [
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"sdp": sdp
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]), forKey: BBBSharedData.SharedData.screenShareOfferCreated)
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}
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}
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}
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logger.info("Configuring observer for setRemoteSDP")
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self.setRemoteSDPCallObserver = userDefaults.observe(\.setScreenShareRemoteSDP, options: [.new]) { (defaults, change) in
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let payload:String = (change.newValue!);
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self.logger.info("Observer detected a setScreenShareRemoteSDP request with payload \(payload)")
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let payloadData = payload.data(using: .utf8)!
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let decodedPayload = (try? JSONDecoder().decode([String: String].self, from: payloadData))!
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let sdp = decodedPayload["sdp"]
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Task.init {
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let remoteSDPDefined = await self.screenBroadcaster!.setRemoteSDP(remoteSDP: sdp!)
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if(remoteSDPDefined){
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self.logger.info("Remote SDP defined!")
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BBBSharedData
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.getUserDefaults(appGroupName: self.appGroupName)
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.set(BBBSharedData.generatePayload(), forKey: BBBSharedData.SharedData.setScreenShareRemoteSDPCompleted)
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}
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}
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}
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}
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open override func broadcastPaused() {
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logger.info("ReplayKit2 event - broadcastPaused")
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logger.info("ReplayKit2 event - broadcastPaused - persisting information on UserDefaults")
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BBBSharedData
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.getUserDefaults(appGroupName: self.appGroupName)
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.set(BBBSharedData.generatePayload(), forKey: BBBSharedData.SharedData.broadcastPaused)
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}
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open override func broadcastResumed() {
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logger.info("ReplayKit2 event - broadcastResumed")
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logger.info("ReplayKit2 event - broadcastResumed - persisting information on UserDefaults")
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BBBSharedData
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.getUserDefaults(appGroupName: self.appGroupName)
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.set(BBBSharedData.generatePayload(), forKey: BBBSharedData.SharedData.broadcastResumed)
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}
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open override func broadcastFinished() {
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logger.info("ReplayKit2 event - broadcastFinished")
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logger.info("ReplayKit2 event - broadcastFinished - persisting information on UserDefaults")
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BBBSharedData
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.getUserDefaults(appGroupName: self.appGroupName)
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.set(BBBSharedData.generatePayload(), forKey: BBBSharedData.SharedData.broadcastFinished)
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}
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open override func processSampleBuffer(_ sampleBuffer: CMSampleBuffer, with sampleBufferType: RPSampleBufferType) {
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switch sampleBufferType {
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case RPSampleBufferType.video:
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logger.trace("ReplayKit2 event - processSampleBuffer(video)")
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break
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case RPSampleBufferType.audioApp:
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logger.trace("ReplayKit2 event - processSampleBuffer(audioApp)")
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break
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case RPSampleBufferType.audioMic:
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logger.trace("ReplayKit2 event - processSampleBuffer(audioMic)")
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break
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@unknown default:
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// Handle other sample buffer types
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fatalError("Unknown type of sample buffer")
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}
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}
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}
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