[WIP] Conference calls

submodules/AccountContext/Sources/PresentationCallManager.swift

@@ -401,6 +401,22 @@ public extension GroupCallParticipantsContext.Participant {
     }
 }
 
+public struct PresentationGroupCallInvitedPeer: Equatable {
+    public enum State {
+        case requesting
+        case ringing
+        case connecting
+    }
+    
+    public var id: EnginePeer.Id
+    public var state: State?
+    
+    public init(id: EnginePeer.Id, state: State?) {
+        self.id = id
+        self.state = state
+    }
+}
+
 public protocol PresentationGroupCall: AnyObject {
     var account: Account { get }
     var accountContext: AccountContext { get }
@@ -468,7 +484,7 @@ public protocol PresentationGroupCall: AnyObject {
     
     func invitePeer(_ peerId: EnginePeer.Id) -> Bool
     func removedPeer(_ peerId: EnginePeer.Id)
-    var invitedPeers: Signal<[EnginePeer.Id], NoError> { get }
+    var invitedPeers: Signal<[PresentationGroupCallInvitedPeer], NoError> { get }
     
     var inviteLinks: Signal<GroupCallInviteLinks?, NoError> { get }
     

submodules/TelegramCallsUI/Sources/CallControllerNodeV2.swift

@@ -470,7 +470,7 @@ final class CallControllerNodeV2: ViewControllerTracingNode, CallControllerNodeP
                         }
                     case .busy:
                         mappedReason = .busy
-                    case .hungUp:
+                    case .hungUp, .switchedToConference:
                         if self.callStartTimestamp != nil {
                             mappedReason = .hangUp
                         } else {
@@ -687,12 +687,12 @@ final class CallControllerNodeV2: ViewControllerTracingNode, CallControllerNodeP
     func animateOutToGroupChat(completion: @escaping () -> Void) -> CallController.AnimateOutToGroupChat {
         self.callScreen.animateOutToGroupChat(completion: completion)
         
-        let takenIncomingVideoLayer = self.callScreen.takeIncomingVideoLayer()
+        let takeSource = self.callScreen.takeIncomingVideoLayer()
         return CallController.AnimateOutToGroupChat(
             containerView: self.containerView,
-            incomingPeerId: self.call.peerId,
+            incomingPeerId: (takeSource?.1 ?? true) ? self.call.peerId : self.call.context.account.peerId,
-            incomingVideoLayer: takenIncomingVideoLayer?.0,
+            incomingVideoLayer: takeSource?.0.0,
-            incomingVideoPlaceholder: takenIncomingVideoLayer?.1
+            incomingVideoPlaceholder: takeSource?.0.1
         )
     }
     

submodules/TelegramCallsUI/Sources/LegacyCallControllerNode.swift

@@ -225,7 +225,7 @@ final class LegacyCallControllerNode: ASDisplayNode, CallControllerNodeProtocol
                             switch type {
                                 case .busy:
                                     statusValue = .text(self.presentationData.strings.Call_StatusBusy)
-                                case .hungUp, .missed:
+                                case .hungUp, .missed, .switchedToConference:
                                     statusValue = .text(self.presentationData.strings.Call_StatusEnded)
                             }
                         case .error:

submodules/TelegramCallsUI/Sources/PresentationCall.swift

@@ -909,7 +909,7 @@ public final class PresentationCallImpl: PresentationCall {
                 self.conferenceCallImpl = conferenceCall
                 conferenceCall.upgradedConferenceCall = self
                 
-                conferenceCall.setInvitedPeers(self.pendingInviteToConferencePeerIds)
+                conferenceCall.setConferenceInvitedPeers(self.pendingInviteToConferencePeerIds)
                 for peerId in self.pendingInviteToConferencePeerIds {
                     let _ = conferenceCall.invitePeer(peerId)
                 }
@@ -990,8 +990,6 @@ public final class PresentationCallImpl: PresentationCall {
                         return
                     }
                     
-                    self.ongoingContext?.stop(debugLogValue: Promise())
-                    self.ongoingContext = nil
                     self.ongoingContextStateDisposable?.dispose()
                     
                     self.conferenceStateValue = .ready
@@ -1197,6 +1195,8 @@ public final class PresentationCallImpl: PresentationCall {
                                                 tone = .busy
                                             case .hungUp, .missed:
                                                 tone = .ended
+                                            case .switchedToConference:
+                                                tone = nil
                                         }
                                     case .error:
                                         tone = .failed

submodules/TelegramCallsUI/Sources/PresentationCallManager.swift

@@ -731,7 +731,7 @@ public final class PresentationCallManagerImpl: PresentationCallManager {
                         guard let groupCall = conferenceSource.conferenceCall else {
                             return
                         }
-                        (conferenceSource as! PresentationCallImpl).resetAsMovedToConference()
+                        (groupCall as! PresentationGroupCallImpl).moveConferenceCall(source: conferenceSource)
                         self.updateCurrentGroupCall(.group(groupCall))
                     })
                     

submodules/TelegramCallsUI/Sources/PresentationGroupCall.swift

@@ -601,6 +601,10 @@ private final class ScreencastEmbeddedIPCContext: ScreencastIPCContext {
 }
 
 private final class PendingConferenceInvitationContext {
+    enum State {
+        case ringing
+    }
+    
     private let callSessionManager: CallSessionManager
     private var requestDisposable: Disposable?
     private var stateDisposable: Disposable?
@@ -608,7 +612,7 @@ private final class PendingConferenceInvitationContext {
     
     private var didNotifyEnded: Bool = false
     
-    init(callSessionManager: CallSessionManager, groupCall: GroupCallReference, encryptionKey: Data, peerId: PeerId, onEnded: @escaping () -> Void) {
+    init(callSessionManager: CallSessionManager, groupCall: GroupCallReference, encryptionKey: Data, peerId: PeerId, onStateUpdated: @escaping (State) -> Void, onEnded: @escaping (Bool) -> Void) {
         self.callSessionManager = callSessionManager
         
         self.requestDisposable = (callSessionManager.request(peerId: peerId, isVideo: false, enableVideo: true, conferenceCall: (groupCall, encryptionKey))
@@ -624,10 +628,14 @@ private final class PendingConferenceInvitationContext {
                     return
                 }
                 switch state.state {
-                case .dropping, .terminated:
+                case let .requesting(ringing, _):
+                    if ringing {
+                        onStateUpdated(.ringing)
+                    }
+                case let .dropping(reason), let .terminated(_, reason, _):
                     if !self.didNotifyEnded {
                         self.didNotifyEnded = true
-                        onEnded()
+                        onEnded(reason == .ended(.switchedToConference))
                     }
                 default:
                     break
@@ -972,15 +980,15 @@ public final class PresentationGroupCallImpl: PresentationGroupCall {
         return self.membersPromise.get()
     }
     
-    private var invitedPeersValue: [EnginePeer.Id] = [] {
+    private var invitedPeersValue: [PresentationGroupCallInvitedPeer] = [] {
         didSet {
             if self.invitedPeersValue != oldValue {
                 self.inivitedPeersPromise.set(self.invitedPeersValue)
             }
         }
     }
-    private let inivitedPeersPromise = ValuePromise<[EnginePeer.Id]>([])
+    private let inivitedPeersPromise = ValuePromise<[PresentationGroupCallInvitedPeer]>([])
-    public var invitedPeers: Signal<[EnginePeer.Id], NoError> {
+    public var invitedPeers: Signal<[PresentationGroupCallInvitedPeer], NoError> {
         return self.inivitedPeersPromise.get()
     }
     
@@ -1062,14 +1070,13 @@ public final class PresentationGroupCallImpl: PresentationGroupCall {
         return self.conferenceSourceId
     }
     
-    var internal_isRemoteConnected = Promise<Bool>()
-    private var internal_isRemoteConnectedDisposable: Disposable?
-    
     public var onMutedSpeechActivityDetected: ((Bool) -> Void)?
     
     let debugLog = Promise<String?>()
     
     public weak var upgradedConferenceCall: PresentationCallImpl?
+    public var pendingDisconnedUpgradedConferenceCall: PresentationCallImpl?
+    private var pendingDisconnedUpgradedConferenceCallTimer: Foundation.Timer?
     private var conferenceInvitationContexts: [PeerId: PendingConferenceInvitationContext] = [:]
     
     init(
@@ -1428,14 +1435,10 @@ public final class PresentationGroupCallImpl: PresentationGroupCall {
         }
         
         self.audioOutputStateDisposable?.dispose()
-        
         self.removedChannelMembersDisposable?.dispose()
-
         self.peerUpdatesSubscription?.dispose()
-
         self.screencastStateDisposable?.dispose()
-        
+        self.pendingDisconnedUpgradedConferenceCallTimer?.invalidate()
-        self.internal_isRemoteConnectedDisposable?.dispose()
     }
     
     private func switchToTemporaryParticipantsContext(sourceContext: GroupCallParticipantsContext?, oldMyPeerId: PeerId) {
@@ -1529,7 +1532,7 @@ public final class PresentationGroupCallImpl: PresentationGroupCall {
                         topParticipants.append(participant)
                     }
 
-                    if let index = updatedInvitedPeers.firstIndex(of: participant.peer.id) {
+                    if let index = updatedInvitedPeers.firstIndex(where: { $0.id == participant.peer.id }) {
                         updatedInvitedPeers.remove(at: index)
                         didUpdateInvitedPeers = true
                     }
@@ -1986,6 +1989,8 @@ public final class PresentationGroupCallImpl: PresentationGroupCall {
                         }
                         lastTimestamp = CFAbsoluteTimeGetCurrent()
                         self.hasActiveIncomingDataValue = true
+                        
+                        self.activateIncomingAudioIfNeeded()
                     })
                     
                     self.hasActiveIncomingDataTimer?.invalidate()
@@ -2002,15 +2007,6 @@ public final class PresentationGroupCallImpl: PresentationGroupCall {
                     })
                     
                     self.signalBarsPromise.set(callContext.signalBars)
-                    
-                    self.internal_isRemoteConnectedDisposable = (self.internal_isRemoteConnected.get()
-                    |> distinctUntilChanged
-                    |> deliverOnMainQueue).startStrict(next: { [weak callContext] isRemoteConnected in
-                        guard let callContext else {
-                            return
-                        }
-                        callContext.addRemoteConnectedEvent(isRemoteConntected: isRemoteConnected)
-                    })
                 }
             }
             
@@ -2645,7 +2641,7 @@ public final class PresentationGroupCallImpl: PresentationGroupCall {
                             }
                         }
                         
-                        if let index = updatedInvitedPeers.firstIndex(of: participant.peer.id) {
+                        if let index = updatedInvitedPeers.firstIndex(where: { $0.id == participant.peer.id }) {
                             updatedInvitedPeers.remove(at: index)
                             didUpdateInvitedPeers = true
                         }
@@ -2741,6 +2737,12 @@ public final class PresentationGroupCallImpl: PresentationGroupCall {
         }
     }
     
+    private func activateIncomingAudioIfNeeded() {
+        if let genericCallContext = self.genericCallContext, case let .call(groupCall) = genericCallContext {
+            groupCall.activateIncomingAudio()
+        }
+    }
+    
     private func requestMediaChannelDescriptions(ssrcs: Set<UInt32>, completion: @escaping ([OngoingGroupCallContext.MediaChannelDescription]) -> Void) -> Disposable {
         func extractMediaChannelDescriptions(remainingSsrcs: inout Set<UInt32>, participants: [GroupCallParticipantsContext.Participant], into result: inout [OngoingGroupCallContext.MediaChannelDescription]) {
             for participant in participants {
@@ -3643,42 +3645,68 @@ public final class PresentationGroupCallImpl: PresentationGroupCall {
             if conferenceInvitationContexts[peerId] != nil {
                 return false
             }
-            var onEnded: (() -> Void)?
+            var onStateUpdated: ((PendingConferenceInvitationContext.State) -> Void)?
+            var onEnded: ((Bool) -> Void)?
             var didEndAlready = false
             let invitationContext = PendingConferenceInvitationContext(
                 callSessionManager: self.accountContext.account.callSessionManager,
                 groupCall: GroupCallReference(id: initialCall.id, accessHash: initialCall.accessHash),
                 encryptionKey: encryptionKey.key,
                 peerId: peerId,
-                onEnded: {
+                onStateUpdated: { state in
+                    onStateUpdated?(state)
+                },
+                onEnded: { success in
                     didEndAlready = true
-                    onEnded?()
+                    onEnded?(success)
                 }
             )
             if !didEndAlready {
                 conferenceInvitationContexts[peerId] = invitationContext
-                if !self.invitedPeersValue.contains(peerId) {
+                if !self.invitedPeersValue.contains(where: { $0.id == peerId }) {
-                    self.invitedPeersValue.append(peerId)
+                    self.invitedPeersValue.append(PresentationGroupCallInvitedPeer(id: peerId, state: .requesting))
                 }
-                onEnded = { [weak self, weak invitationContext] in
+                onStateUpdated = { [weak self] state in
+                    guard let self else {
+                        return
+                    }
+                    if let index = self.invitedPeersValue.firstIndex(where: { $0.id == peerId }) {
+                        var invitedPeer = self.invitedPeersValue[index]
+                        switch state {
+                        case .ringing:
+                            invitedPeer.state = .ringing
+                        }
+                        self.invitedPeersValue[index] = invitedPeer
+                    }
+                }
+                onEnded = { [weak self, weak invitationContext] success in
                     guard let self, let invitationContext else {
                         return
                     }
                     if self.conferenceInvitationContexts[peerId] === invitationContext {
                         self.conferenceInvitationContexts.removeValue(forKey: peerId)
-                        self.invitedPeersValue.removeAll(where: { $0 == peerId })
+                        
+                        if success {
+                            if let index = self.invitedPeersValue.firstIndex(where: { $0.id == peerId }) {
+                                var invitedPeer = self.invitedPeersValue[index]
+                                invitedPeer.state = .connecting
+                                self.invitedPeersValue[index] = invitedPeer
+                            }
+                        } else {
+                            self.invitedPeersValue.removeAll(where: { $0.id == peerId })
+                        }
                     }
                 }
             }
             
             return false
         } else {
-            guard let callInfo = self.internalState.callInfo, !self.invitedPeersValue.contains(peerId) else {
+            guard let callInfo = self.internalState.callInfo, !self.invitedPeersValue.contains(where: { $0.id == peerId }) else {
                 return false
             }
             
             var updatedInvitedPeers = self.invitedPeersValue
-            updatedInvitedPeers.insert(peerId, at: 0)
+            updatedInvitedPeers.insert(PresentationGroupCallInvitedPeer(id: peerId, state: nil), at: 0)
             self.invitedPeersValue = updatedInvitedPeers
             
             let _ = self.accountContext.engine.calls.inviteToGroupCall(callId: callInfo.id, accessHash: callInfo.accessHash, peerId: peerId).start()
@@ -3687,13 +3715,15 @@ public final class PresentationGroupCallImpl: PresentationGroupCall {
         }
     }
     
-    func setInvitedPeers(_ peerIds: [PeerId]) {
+    func setConferenceInvitedPeers(_ peerIds: [PeerId]) {
-        self.invitedPeersValue = peerIds
+        self.invitedPeersValue = peerIds.map {
+            PresentationGroupCallInvitedPeer(id: $0, state: .requesting)
+        }
     }
     
     public func removedPeer(_ peerId: PeerId) {
         var updatedInvitedPeers = self.invitedPeersValue
-        updatedInvitedPeers.removeAll(where: { $0 == peerId})
+        updatedInvitedPeers.removeAll(where: { $0.id == peerId})
         self.invitedPeersValue = updatedInvitedPeers
     }
     
@@ -3859,6 +3889,26 @@ public final class PresentationGroupCallImpl: PresentationGroupCall {
         }
         |> runOn(.mainQueue())
     }
+    
+    func moveConferenceCall(source: PresentationCall) {
+        guard let source = source as? PresentationCallImpl else {
+            return
+        }
+        
+        self.pendingDisconnedUpgradedConferenceCall?.resetAsMovedToConference()
+        self.pendingDisconnedUpgradedConferenceCall = source
+        
+        self.pendingDisconnedUpgradedConferenceCallTimer?.invalidate()
+        self.pendingDisconnedUpgradedConferenceCallTimer = Foundation.Timer.scheduledTimer(withTimeInterval: 5.0, repeats: false, block: { [weak self] _ in
+            guard let self else {
+                return
+            }
+            if let pendingDisconnedUpgradedConferenceCall = self.pendingDisconnedUpgradedConferenceCall {
+                self.pendingDisconnedUpgradedConferenceCall = nil
+                pendingDisconnedUpgradedConferenceCall.resetAsMovedToConference()
+            }
+        })
+    }
 }
 
 private protocol ScreencastContext: AnyObject {

submodules/TelegramCallsUI/Sources/VideoChatParticipantVideoComponent.swift

@@ -428,6 +428,15 @@ final class VideoChatParticipantVideoComponent: Component {
                 alphaTransition.setAlpha(view: titleView, alpha: controlsAlpha)
             }
             
+            var previousVideoDescription: GroupCallParticipantsContext.Participant.VideoDescription?
+            if let previousComponent {
+                if previousComponent.isMyPeer && previousComponent.isPresentation {
+                    previousVideoDescription = nil
+                } else {
+                    previousVideoDescription = previousComponent.maxVideoQuality == 0 ? nil : (previousComponent.isPresentation ? previousComponent.participant.presentationDescription : previousComponent.participant.videoDescription)
+                }
+            }
+            
             let videoDescription: GroupCallParticipantsContext.Participant.VideoDescription?
             if component.isMyPeer && component.isPresentation {
                 videoDescription = nil
@@ -506,8 +515,13 @@ final class VideoChatParticipantVideoComponent: Component {
                 }
                 
                 let videoLayer: PrivateCallVideoLayer
+                var resetVideoSource = false
                 if let current = self.videoLayer {
                     videoLayer = current
+                    
+                    if let previousVideoDescription, previousVideoDescription.endpointId != videoDescription.endpointId {
+                        resetVideoSource = true
+                    }
                 } else {
                     videoLayer = PrivateCallVideoLayer()
                     self.videoLayer = videoLayer
@@ -517,6 +531,10 @@ final class VideoChatParticipantVideoComponent: Component {
                     
                     videoLayer.blurredLayer.opacity = 0.0
                     
+                    resetVideoSource = true
+                }
+                
+                if resetVideoSource {
                     if let input = component.call.video(endpointId: videoDescription.endpointId) {
                         let videoSource = AdaptedCallVideoSource(videoStreamSignal: input)
                         self.videoSource = videoSource

submodules/TelegramCallsUI/Sources/VideoChatParticipantsComponent.swift

@@ -128,7 +128,7 @@ final class VideoChatParticipantsComponent: Component {
     
     let call: VideoChatCall
     let participants: Participants?
-    let invitedPeers: [EnginePeer]
+    let invitedPeers: [VideoChatScreenComponent.InvitedPeer]
     let speakingParticipants: Set<EnginePeer.Id>
     let expandedVideoState: ExpandedVideoState?
     let maxVideoQuality: Int
@@ -148,7 +148,7 @@ final class VideoChatParticipantsComponent: Component {
     init(
         call: VideoChatCall,
         participants: Participants?,
-        invitedPeers: [EnginePeer],
+        invitedPeers: [VideoChatScreenComponent.InvitedPeer],
         speakingParticipants: Set<EnginePeer.Id>,
         expandedVideoState: ExpandedVideoState?,
         maxVideoQuality: Int,
@@ -1259,10 +1259,20 @@ final class VideoChatParticipantsComponent: Component {
                         )
                     } else {
                         let invitedPeer = component.invitedPeers[i - self.listParticipants.count]
-                        participantPeerId = invitedPeer.id
+                        participantPeerId = invitedPeer.peer.id
                         
                         let subtitle: PeerListItemComponent.Subtitle
-                        subtitle = PeerListItemComponent.Subtitle(text: component.strings.VoiceChat_StatusInvited, color: .neutral)
+                        //TODO:localize
+                        switch invitedPeer.state {
+                        case .none:
+                            subtitle = PeerListItemComponent.Subtitle(text: component.strings.VoiceChat_StatusInvited, color: .neutral)
+                        case .connecting:
+                            subtitle = PeerListItemComponent.Subtitle(text: "connecting...", color: .neutral)
+                        case .requesting:
+                            subtitle = PeerListItemComponent.Subtitle(text: "requesting...", color: .neutral)
+                        case .ringing:
+                            subtitle = PeerListItemComponent.Subtitle(text: "ringing...", color: .neutral)
+                        }
                         
                         peerItemComponent = PeerListItemComponent(
                             context: component.call.accountContext,
@@ -1270,15 +1280,15 @@ final class VideoChatParticipantsComponent: Component {
                             strings: component.strings,
                             style: .generic,
                             sideInset: 0.0,
-                            title: invitedPeer.displayTitle(strings: component.strings, displayOrder: .firstLast),
+                            title: invitedPeer.peer.displayTitle(strings: component.strings, displayOrder: .firstLast),
                             avatarComponent: AnyComponent(VideoChatParticipantAvatarComponent(
                                 call: component.call,
-                                peer: invitedPeer,
+                                peer: invitedPeer.peer,
                                 myPeerId: component.participants?.myPeerId ?? component.call.accountContext.account.peerId,
                                 isSpeaking: false,
                                 theme: component.theme
                             )),
-                            peer: invitedPeer,
+                            peer: invitedPeer.peer,
                             subtitle: subtitle,
                             subtitleAccessory: .none,
                             presence: nil,

submodules/TelegramCallsUI/Sources/VideoChatScreen.swift

@@ -191,6 +191,16 @@ final class VideoChatScreenComponent: Component {
         }
     }
     
+    struct InvitedPeer: Equatable {
+        var peer: EnginePeer
+        var state: PresentationGroupCallInvitedPeer.State?
+        
+        init(peer: EnginePeer, state: PresentationGroupCallInvitedPeer.State?) {
+            self.peer = peer
+            self.state = state
+        }
+    }
+
     final class View: UIView, UIGestureRecognizerDelegate {
         let containerView: UIView
         
@@ -242,7 +252,7 @@ final class VideoChatScreenComponent: Component {
         var members: PresentationGroupCallMembers?
         var membersDisposable: Disposable?
         
-        var invitedPeers: [EnginePeer] = []
+        var invitedPeers: [InvitedPeer] = []
         var invitedPeersDisposable: Disposable?
         
         var speakingParticipantPeers: [EnginePeer] = []
@@ -323,8 +333,13 @@ final class VideoChatScreenComponent: Component {
             }
             
             var expandedPeer: (id: EnginePeer.Id, isPresentation: Bool)?
-            if let animateOutData, animateOutData.incomingVideoLayer != nil {
+            if let animateOutData, animateOutData.incomingVideoLayer != nil, let members = self.members {
-                if let members = self.members, let participant = members.participants.first(where: { $0.peer.id == animateOutData.incomingPeerId }) {
+                if let participant = members.participants.first(where: { $0.peer.id == animateOutData.incomingPeerId }) {
+                    if let _ = participant.videoDescription {
+                        expandedPeer = (participant.peer.id, false)
+                        self.expandedParticipantsVideoState = VideoChatParticipantsComponent.ExpandedVideoState(mainParticipant: VideoChatParticipantsComponent.VideoParticipantKey(id: participant.peer.id, isPresentation: false), isMainParticipantPinned: false, isUIHidden: true)
+                    }
+                } else if let participant = members.participants.first(where: { $0.peer.id == sourceCallController.call.context.account.peerId }) {
                     if let _ = participant.videoDescription {
                         expandedPeer = (participant.peer.id, false)
                         self.expandedParticipantsVideoState = VideoChatParticipantsComponent.ExpandedVideoState(mainParticipant: VideoChatParticipantsComponent.VideoParticipantKey(id: participant.peer.id, isPresentation: false), isMainParticipantPinned: false, isUIHidden: true)
@@ -969,7 +984,7 @@ final class VideoChatScreenComponent: Component {
             }
         }
         
-        static func groupCallStateForConferenceSource(conferenceSource: PresentationCall) -> Signal<(state: PresentationGroupCallState, invitedPeers: [EnginePeer]), NoError> {
+        static func groupCallStateForConferenceSource(conferenceSource: PresentationCall) -> Signal<(state: PresentationGroupCallState, invitedPeers: [InvitedPeer]), NoError> {
             let invitedPeers = conferenceSource.context.engine.data.subscribe(
                 EngineDataList((conferenceSource as! PresentationCallImpl).pendingInviteToConferencePeerIds.map { TelegramEngine.EngineData.Item.Peer.Peer(id: $0) })
             )
@@ -982,7 +997,7 @@ final class VideoChatScreenComponent: Component {
                 conferenceSource.isMuted,
                 invitedPeers
             )
-            |> mapToSignal { state, isMuted, invitedPeers -> Signal<(state: PresentationGroupCallState, invitedPeers: [EnginePeer]), NoError> in
+            |> mapToSignal { state, isMuted, invitedPeers -> Signal<(state: PresentationGroupCallState, invitedPeers: [VideoChatScreenComponent.InvitedPeer]), NoError> in
                 let mappedNetworkState: PresentationGroupCallState.NetworkState
                 switch state.state {
                 case .active:
@@ -1007,7 +1022,12 @@ final class VideoChatScreenComponent: Component {
                     isVideoWatchersLimitReached: false
                 )
                 
-                return .single((callState, invitedPeers.compactMap({ $0 })))
+                return .single((callState, invitedPeers.compactMap({ peer -> VideoChatScreenComponent.InvitedPeer? in
+                    guard let peer else {
+                        return nil
+                    }
+                    return VideoChatScreenComponent.InvitedPeer(peer: peer, state: .requesting)
+                })))
             }
         }
         
@@ -1023,10 +1043,18 @@ final class VideoChatScreenComponent: Component {
                 var participants: [GroupCallParticipantsContext.Participant] = []
                 let (myPeer, remotePeer) = peers
                 if let myPeer {
+                    var myVideoDescription: GroupCallParticipantsContext.Participant.VideoDescription?
+                    switch state.videoState {
+                    case .active:
+                        myVideoDescription = GroupCallParticipantsContext.Participant.VideoDescription(endpointId: "temp-local", ssrcGroups: [], audioSsrc: nil, isPaused: false)
+                    default:
+                        break
+                    }
+                    
                     participants.append(GroupCallParticipantsContext.Participant(
                         peer: myPeer._asPeer(),
                         ssrc: nil,
-                        videoDescription: nil,
+                        videoDescription: myVideoDescription,
                         presentationDescription: nil,
                         joinTimestamp: 0,
                         raiseHandRating: nil,
@@ -1040,10 +1068,18 @@ final class VideoChatScreenComponent: Component {
                     ))
                 }
                 if let remotePeer {
+                    var remoteVideoDescription: GroupCallParticipantsContext.Participant.VideoDescription?
+                    switch state.remoteVideoState {
+                    case .active:
+                        remoteVideoDescription = GroupCallParticipantsContext.Participant.VideoDescription(endpointId: "temp-remote", ssrcGroups: [], audioSsrc: nil, isPaused: false)
+                    default:
+                        break
+                    }
+                    
                     participants.append(GroupCallParticipantsContext.Participant(
                         peer: remotePeer._asPeer(),
                         ssrc: nil,
-                        videoDescription: nil,
+                        videoDescription: remoteVideoDescription,
                         presentationDescription: nil,
                         joinTimestamp: 0,
                         raiseHandRating: nil,
@@ -1087,7 +1123,7 @@ final class VideoChatScreenComponent: Component {
                 self.members = component.initialData.members
                 self.invitedPeers = component.initialData.invitedPeers
                 if let members = self.members {
-                    self.invitedPeers.removeAll(where: { invitedPeer in members.participants.contains(where: { $0.peer.id == invitedPeer.id }) })
+                    self.invitedPeers.removeAll(where: { invitedPeer in members.participants.contains(where: { $0.peer.id == invitedPeer.peer.id }) })
                 }
                 self.callState = component.initialData.callState
             }
@@ -1128,7 +1164,7 @@ final class VideoChatScreenComponent: Component {
                             
                             self.members = members
                             if let members {
-                                self.invitedPeers.removeAll(where: { invitedPeer in members.participants.contains(where: { $0.peer.id == invitedPeer.id }) })
+                                self.invitedPeers.removeAll(where: { invitedPeer in members.participants.contains(where: { $0.peer.id == invitedPeer.peer.id }) })
                             }
                             
                             if let members, let expandedParticipantsVideoState = self.expandedParticipantsVideoState, !expandedParticipantsVideoState.isUIHidden {
@@ -1234,10 +1270,16 @@ final class VideoChatScreenComponent: Component {
                     self.invitedPeersDisposable = (groupCall.invitedPeers
                     |> mapToSignal { invitedPeers in
                         return accountContext.engine.data.get(
-                            EngineDataList(invitedPeers.map({ TelegramEngine.EngineData.Item.Peer.Peer(id: $0) }))
+                            EngineDataMap(invitedPeers.map({ TelegramEngine.EngineData.Item.Peer.Peer(id: $0.id) }))
                         )
-                        |> map { peers in
+                        |> map { peers -> [InvitedPeer] in
-                            return peers.compactMap { $0 }
+                            var result: [InvitedPeer] = []
+                            for invitedPeer in invitedPeers {
+                                if let maybePeer = peers[invitedPeer.id], let peer = maybePeer {
+                                    result.append(InvitedPeer(peer: peer, state: invitedPeer.state))
+                                }
+                            }
+                            return result
                         }
                     }
                     |> deliverOnMainQueue).startStrict(next: { [weak self] invitedPeers in
@@ -1247,7 +1289,7 @@ final class VideoChatScreenComponent: Component {
                         
                         var invitedPeers = invitedPeers
                         if let members {
-                            invitedPeers.removeAll(where: { invitedPeer in members.participants.contains(where: { $0.peer.id == invitedPeer.id }) })
+                            invitedPeers.removeAll(where: { invitedPeer in members.participants.contains(where: { $0.peer.id == invitedPeer.peer.id }) })
                         }
                         
                         if self.invitedPeers != invitedPeers {
@@ -2461,13 +2503,13 @@ final class VideoChatScreenV2Impl: ViewControllerComponentContainer, VoiceChatCo
         let peer: EnginePeer?
         let members: PresentationGroupCallMembers?
         let callState: PresentationGroupCallState
-        let invitedPeers: [EnginePeer]
+        let invitedPeers: [VideoChatScreenComponent.InvitedPeer]
         
         init(
             peer: EnginePeer?,
             members: PresentationGroupCallMembers?,
             callState: PresentationGroupCallState,
-            invitedPeers: [EnginePeer]
+            invitedPeers: [VideoChatScreenComponent.InvitedPeer]
         ) {
             self.peer = peer
             self.members = members
@@ -2633,7 +2675,7 @@ final class VideoChatScreenV2Impl: ViewControllerComponentContainer, VoiceChatCo
             let accountContext = groupCall.accountContext
             let invitedPeers = groupCall.invitedPeers |> take(1) |> mapToSignal { invitedPeers in
                 return accountContext.engine.data.get(
-                    EngineDataList(invitedPeers.map({ TelegramEngine.EngineData.Item.Peer.Peer(id: $0) }))
+                    EngineDataList(invitedPeers.map(\.id).map({ TelegramEngine.EngineData.Item.Peer.Peer(id: $0) }))
                 )
             }
             return combineLatest(
@@ -2647,7 +2689,12 @@ final class VideoChatScreenV2Impl: ViewControllerComponentContainer, VoiceChatCo
                     peer: peer,
                     members: members,
                     callState: callState,
-                    invitedPeers: invitedPeers.compactMap { $0 }
+                    invitedPeers: invitedPeers.compactMap { peer -> VideoChatScreenComponent.InvitedPeer? in
+                        guard let peer else {
+                            return nil
+                        }
+                        return VideoChatScreenComponent.InvitedPeer(peer: peer, state: nil)
+                    }
                 )
             }
         case let .conferenceSource(conferenceSource):

submodules/TelegramCallsUI/Sources/VoiceChatController.swift

@@ -1891,7 +1891,8 @@ final class VoiceChatControllerImpl: ViewController, VoiceChatController {
             self.updateDecorationsColors()
                         
             let invitedPeers: Signal<[EnginePeer], NoError> = self.call.invitedPeers
-            |> mapToSignal { ids -> Signal<[EnginePeer], NoError> in
+            |> mapToSignal { peers -> Signal<[EnginePeer], NoError> in
+                let ids = peers.map(\.id)
                 return context.engine.data.get(EngineDataList(
                     ids.map(TelegramEngine.EngineData.Item.Peer.Peer.init)
                 ))

submodules/TelegramCore/Sources/State/CallSessionManager.swift

@@ -19,6 +19,7 @@ public enum CallSessionEndedType {
     case hungUp
     case busy
     case missed
+    case switchedToConference
 }
 
 public enum CallSessionTerminationReason: Equatable {
@@ -709,7 +710,7 @@ private final class CallSessionManagerContext {
                 case .missed:
                     mappedReason = .ended(.missed)
                 case .switchToConference:
-                    mappedReason = .ended(.hungUp)
+                    mappedReason = .ended(.switchedToConference)
                 }
                 context.state = .dropping(reason: mappedReason, disposable: (dropCallSession(network: self.network, addUpdates: self.addUpdates, stableId: id, accessHash: accessHash, isVideo: isVideo, reason: reason)
                 |> deliverOn(self.queue)).start(next: { [weak self] reportRating, sendDebugLogs in
@@ -763,7 +764,7 @@ private final class CallSessionManagerContext {
             
             if let (id, accessHash) = dropData {
                 self.contextIdByStableId.removeValue(forKey: id)
-                context.state = .dropping(reason: .ended(.hungUp), disposable: (dropCallSession(network: self.network, addUpdates: self.addUpdates, stableId: id, accessHash: accessHash, isVideo: isVideo, reason: .switchToConference(encryptedGroupKey: encryptedGroupKey))
+                context.state = .dropping(reason: .ended(.switchedToConference), disposable: (dropCallSession(network: self.network, addUpdates: self.addUpdates, stableId: id, accessHash: accessHash, isVideo: isVideo, reason: .switchToConference(encryptedGroupKey: encryptedGroupKey))
                 |> deliverOn(self.queue)).start(next: { [weak self] reportRating, sendDebugLogs in
                     if let strongSelf = self {
                         if let context = strongSelf.contexts[internalId] {
@@ -962,11 +963,15 @@ private final class CallSessionManagerContext {
                         case .phoneCallDiscardReasonDisconnect:
                             parsedReason = .error(.disconnected)
                         case .phoneCallDiscardReasonHangup:
-                            parsedReason = .ended(.hungUp)
+                            if context.pendingConference != nil {
+                                parsedReason = .ended(.switchedToConference)
+                            } else {
+                                parsedReason = .ended(.hungUp)
+                            }
                         case .phoneCallDiscardReasonMissed:
                             parsedReason = .ended(.missed)
                         case .phoneCallDiscardReasonAllowGroupCall:
-                            parsedReason = .ended(.hungUp)
+                            parsedReason = .ended(.switchedToConference)
                         }
                     } else {
                         parsedReason = .ended(.hungUp)

submodules/TelegramUI/Components/Calls/CallScreen/Sources/PrivateCallScreen.swift

@@ -503,21 +503,27 @@ public final class PrivateCallScreen: OverlayMaskContainerView, AVPictureInPictu
         self.update(transition: .easeInOut(duration: 0.25))
     }
     
-    public func takeIncomingVideoLayer() -> (CALayer, VideoSource.Output?)? {
+    public func takeIncomingVideoLayer() -> ((CALayer, VideoSource.Output?), Bool)? {
-        var remoteVideoContainerKey: VideoContainerView.Key?
+        var activeVideoSources: [(VideoContainerView.Key, Bool)] = []
         if self.swapLocalAndRemoteVideo {
+            if let _ = self.activeLocalVideoSource {
+                activeVideoSources.append((.background, false))
+            }
             if let _ = self.activeRemoteVideoSource {
-                remoteVideoContainerKey = .foreground
+                activeVideoSources.append((.foreground, true))
             }
         } else {
             if let _ = self.activeRemoteVideoSource {
-                remoteVideoContainerKey = .background
+                activeVideoSources.append((.background, true))
+            }
+            if let _ = self.activeLocalVideoSource {
+                activeVideoSources.append((.foreground, false))
             }
         }
         
-        if let remoteVideoContainerKey, let videoContainerView = self.videoContainerViews.first(where: { $0.key == remoteVideoContainerKey }) {
+        if let videoSource = activeVideoSources.first, let videoContainerView = self.videoContainerViews.first(where: { $0.key == videoSource.0 }) {
             videoContainerView.videoContainerLayerTaken = true
-            return (videoContainerView.videoContainerLayer, videoContainerView.currentVideoOutput)
+            return ((videoContainerView.videoContainerLayer, videoContainerView.currentVideoOutput), videoSource.1)
         }
         
         return nil

submodules/TelegramVoip/Sources/GroupCallContext.swift

@@ -1087,10 +1087,8 @@ public final class OngoingGroupCallContext {
             
         }
         
-        func addRemoteConnectedEvent(isRemoteConntected: Bool) {
+        func activateIncomingAudio() {
-            #if os(iOS)
+            self.context.activateIncomingAudio()
-            self.context.addRemoteConnectedEvent(isRemoteConntected)
-            #endif
         }
     }
     
@@ -1314,9 +1312,9 @@ public final class OngoingGroupCallContext {
         }
     }
     
-    public func addRemoteConnectedEvent(isRemoteConntected: Bool) {
+    public func activateIncomingAudio() {
         self.impl.with { impl in
-            impl.addRemoteConnectedEvent(isRemoteConntected: isRemoteConntected)
+            impl.activateIncomingAudio()
         }
     }
 }

submodules/TgVoipWebrtc/PublicHeaders/TgVoipWebrtc/OngoingCallThreadLocalContext.h

@@ -453,7 +453,7 @@ isConference:(bool)isConference;
 
 - (void)getStats:(void (^ _Nonnull)(OngoingGroupCallStats * _Nonnull))completion;
 
-- (void)addRemoteConnectedEvent:(bool)isRemoteConnected;
+- (void)activateIncomingAudio;
 
 @end
 

submodules/TgVoipWebrtc/Sources/OngoingCallThreadLocalContext.mm

@@ -66,6 +66,29 @@
 
 namespace tgcalls {
 
+class WrappedChildAudioDeviceModuleControl {
+public:
+    WrappedChildAudioDeviceModuleControl() {
+    }
+    
+    virtual ~WrappedChildAudioDeviceModuleControl() {
+        _mutex.Lock();
+        _mutex.Unlock();
+    }
+    
+public:
+    void setActive() {
+        _mutex.Lock();
+        
+        
+        
+        _mutex.Unlock();
+    }
+    
+private:
+    webrtc::Mutex _mutex;
+};
+
 class SharedAudioDeviceModule {
 public:
     virtual ~SharedAudioDeviceModule() = default;
@@ -93,12 +116,15 @@ public:
     }
     
     void UpdateAudioCallback(webrtc::AudioTransport *previousAudioCallback, webrtc::AudioTransport *audioCallback) {
-        if (audioCallback == nil) {
+        if (audioCallback) {
-            if (_currentAudioTransport == previousAudioCallback) {
+            _audioTransports.push_back(audioCallback);
-                _currentAudioTransport = nil;
+        } else if (previousAudioCallback) {
+            for (size_t i = 0; i < _audioTransports.size(); i++) {
+                if (_audioTransports[i] == previousAudioCallback) {
+                    _audioTransports.erase(_audioTransports.begin() + i);
+                    break;
+                }
             }
-        } else {
-            _currentAudioTransport = audioCallback;
         }
     }
 
@@ -409,19 +435,26 @@ public:
         bool keyPressed,
         uint32_t& newMicLevel
     ) override {
-        if (_currentAudioTransport) {
+        if (!_audioTransports.empty()) {
-            return _currentAudioTransport->RecordedDataIsAvailable(
+            for (size_t i = 0; i < _audioTransports.size(); i++) {
-                audioSamples,
+                auto result = _audioTransports[_audioTransports.size() - 1]->RecordedDataIsAvailable(
-                nSamples,
+                    audioSamples,
-                nBytesPerSample,
+                    nSamples,
-                nChannels,
+                    nBytesPerSample,
-                samplesPerSec,
+                    nChannels,
-                totalDelayMS,
+                    samplesPerSec,
-                clockDrift,
+                    totalDelayMS,
-                currentMicLevel,
+                    clockDrift,
-                keyPressed,
+                    currentMicLevel,
-                newMicLevel
+                    keyPressed,
-            );
+                    newMicLevel
+                );
+                if (i == _audioTransports.size() - 1) {
+                    return result;
+                }
+            }
+            
+            return 0;
         } else {
             return 0;
         }
@@ -440,20 +473,26 @@ public:
         uint32_t& newMicLevel,
         absl::optional<int64_t> estimatedCaptureTimeNS
     ) override {
-        if (_currentAudioTransport) {
+        if (!_audioTransports.empty()) {
-            return _currentAudioTransport->RecordedDataIsAvailable(
+            for (size_t i = 0; i < _audioTransports.size(); i++) {
-                audioSamples,
+                auto result = _audioTransports[_audioTransports.size() - 1]->RecordedDataIsAvailable(
-                nSamples,
+                    audioSamples,
-                nBytesPerSample,
+                    nSamples,
-                nChannels,
+                    nBytesPerSample,
-                samplesPerSec,
+                    nChannels,
-                totalDelayMS,
+                    samplesPerSec,
-                clockDrift,
+                    totalDelayMS,
-                currentMicLevel,
+                    clockDrift,
-                keyPressed,
+                    currentMicLevel,
-                newMicLevel,
+                    keyPressed,
-                estimatedCaptureTimeNS
+                    newMicLevel,
-            );
+                    estimatedCaptureTimeNS
+                );
+                if (i == _audioTransports.size() - 1) {
+                    return result;
+                }
+            }
+            return 0;
         } else {
             return 0;
         }
@@ -470,8 +509,8 @@ public:
         int64_t* elapsed_time_ms,
         int64_t* ntp_time_ms
     ) override {
-        if (_currentAudioTransport) {
+        if (!_audioTransports.empty()) {
-            return _currentAudioTransport->NeedMorePlayData(
+            return _audioTransports[_audioTransports.size() - 1]->NeedMorePlayData(
                 nSamples,
                 nBytesPerSample,
                 nChannels,
@@ -496,8 +535,8 @@ public:
         int64_t* elapsed_time_ms,
         int64_t* ntp_time_ms
     ) override {
-        if (_currentAudioTransport) {
+        if (!_audioTransports.empty()) {
-            _currentAudioTransport->PullRenderData(
+            _audioTransports[_audioTransports.size() - 1]->PullRenderData(
                 bits_per_sample,
                 sample_rate,
                 number_of_channels,
@@ -540,7 +579,7 @@ public:
     
 private:
     bool _isStarted = false;
-    webrtc::AudioTransport *_currentAudioTransport = nullptr;
+    std::vector<webrtc::AudioTransport *> _audioTransports;
 };
 
 class WrappedChildAudioDeviceModule : public tgcalls::DefaultWrappedAudioDeviceModule {
@@ -556,13 +595,28 @@ public:
         auto previousAudioCallback = _audioCallback;
         _audioCallback = audioCallback;
         
-        ((WrappedAudioDeviceModuleIOS *)WrappedInstance().get())->UpdateAudioCallback(previousAudioCallback, audioCallback);
+        if (_isActive) {
+            ((WrappedAudioDeviceModuleIOS *)WrappedInstance().get())->UpdateAudioCallback(previousAudioCallback, audioCallback);
+        }
         
         return 0;
     }
     
+public:
+    void setIsActive() {
+        if (_isActive) {
+            return;
+        }
+        _isActive = true;
+        
+        if (_audioCallback) {
+            ((WrappedAudioDeviceModuleIOS *)WrappedInstance().get())->UpdateAudioCallback(nullptr, _audioCallback);
+        }
+    }
+    
 private:
     webrtc::AudioTransport *_audioCallback = nullptr;
+    bool _isActive = false;
 };
 
 class SharedAudioDeviceModuleImpl: public tgcalls::SharedAudioDeviceModule {
@@ -1785,7 +1839,9 @@ static void (*InternalVoipLoggingFunction)(NSString *) = NULL;
             },
             .createWrappedAudioDeviceModule = [audioDeviceModule](webrtc::TaskQueueFactory *taskQueueFactory) -> rtc::scoped_refptr<tgcalls::WrappedAudioDeviceModule> {
                 if (audioDeviceModule) {
-                    return audioDeviceModule->getSyncAssumingSameThread()->makeChildAudioDeviceModule();
+                    auto result = audioDeviceModule->getSyncAssumingSameThread()->makeChildAudioDeviceModule();
+                    ((WrappedChildAudioDeviceModule *)result.get())->setIsActive();
+                    return result;
                 } else {
                     return nullptr;
                 }
@@ -2493,7 +2549,9 @@ isConference:(bool)isConference {
             },
             .createWrappedAudioDeviceModule = [audioDeviceModule](webrtc::TaskQueueFactory *taskQueueFactory) -> rtc::scoped_refptr<tgcalls::WrappedAudioDeviceModule> {
                 if (audioDeviceModule) {
-                    return audioDeviceModule->getSyncAssumingSameThread()->makeChildAudioDeviceModule();
+                    auto result = audioDeviceModule->getSyncAssumingSameThread()->makeChildAudioDeviceModule();
+                    ((WrappedChildAudioDeviceModule *)result.get())->setIsActive();
+                    return result;
                 } else {
                     return nullptr;
                 }
@@ -2835,10 +2893,7 @@ isConference:(bool)isConference {
     }
 }
 
-- (void)addRemoteConnectedEvent:(bool)isRemoteConnected {
+- (void)activateIncomingAudio {
-    if (_instance) {
-        _instance->internal_addCustomNetworkEvent(isRemoteConnected);
-    }
 }
 
 @end