Merge commit '7621e2f8dec938cf48181c8b10afc9b01f444e68' into beta

submodules/TelegramVoip/Sources/ReflectorBenchmark.swift

@@ -0,0 +1,424 @@
+import Foundation
+import SwiftSignalKit
+import Network
+
+@available(macOS 10.14, *)
+public final class ReflectorBenchmark {
+    public struct Results {
+        public let bandwidthBytesPerSecond: Int
+        public let expectedBandwidthBytesPerSecond: Int
+        public let averageDelay: Double
+        
+        public init(bandwidthBytesPerSecond: Int, expectedBandwidthBytesPerSecond: Int, averageDelay: Double) {
+            self.bandwidthBytesPerSecond = bandwidthBytesPerSecond
+            self.expectedBandwidthBytesPerSecond = expectedBandwidthBytesPerSecond
+            self.averageDelay = averageDelay
+        }
+    }
+    @available(macOS 10.14, *)
+    private final class Impl {
+        let queue: Queue
+        let address: String
+        let port: Int
+        
+        let incomingTag: Data
+        let outgoingTag: Data
+        let outgoingRandomTag: Data
+        
+        let targetBandwidthBytesPerSecond: Int
+        let sendPacketInterval: Double
+        let maxPacketCount: Int
+        
+        var outgoingConnection: NWConnection?
+        var incomingConnection: NWConnection?
+        
+        var completion: ((Results) -> Void)?
+        
+        var incomingPingSendTimestamp: Double?
+        var didReceiveIncomingPing: Bool = false
+        var outgoingPingSendTimestamp: Double?
+        var didReceiveOutgoingPing: Bool = false
+        
+        var sentPacketCount: Int = 0
+        var receivedPacketCount: Int = 0
+        var firstReceiveTimestamp: Double?
+        var lastReceiveTimestamp: Double?
+        var unconfirmedPacketSendTimestamp: [Data: Double] = [:]
+        var packetSizeAndTimeToReceive: [(Int, Double)] = []
+        
+        var pingTimer: SwiftSignalKit.Timer?
+        var sendPacketTimer: SwiftSignalKit.Timer?
+        var bandwidthTimer: SwiftSignalKit.Timer?
+        
+        init(queue: Queue, address: String, port: Int) {
+            self.queue = queue
+            self.address = address
+            self.port = port
+            
+            self.targetBandwidthBytesPerSecond = 700 * 1024 / 8
+            self.sendPacketInterval = 1.0 / 30.0
+            self.maxPacketCount = Int(5.0 / self.sendPacketInterval)
+            
+            var incomingTag = Data(count: 16)
+            var outgoingTag = Data(count: 16)
+            
+            incomingTag.withUnsafeMutableBytes { incomingBuffer -> Void in
+                outgoingTag.withUnsafeMutableBytes { outgoingBuffer -> Void in
+                    let incoming = incomingBuffer.baseAddress!.assumingMemoryBound(to: UInt8.self)
+                    let outgoing = outgoingBuffer.baseAddress!.assumingMemoryBound(to: UInt8.self)
+                    
+                    arc4random_buf(incoming, incomingBuffer.count)
+                    memcpy(outgoing, incoming, incomingBuffer.count)
+                    
+                    incoming[0] = 0
+                    outgoing[0] = 1
+                }
+            }
+            
+            var outgoingRandomTag = Data(count: 4)
+            outgoingRandomTag.withUnsafeMutableBytes { buffer -> Void in
+                arc4random_buf(buffer.baseAddress!, buffer.count)
+            }
+            
+            self.incomingTag = incomingTag
+            self.outgoingTag = outgoingTag
+            self.outgoingRandomTag = outgoingRandomTag
+        }
+        
+        deinit {
+            self.incomingConnection?.cancel()
+            self.outgoingConnection?.cancel()
+            self.pingTimer?.invalidate()
+            self.sendPacketTimer?.invalidate()
+            self.bandwidthTimer?.invalidate()
+        }
+        
+        func start(completion: @escaping (Results) -> Void) {
+            self.completion = completion
+            
+            let endpoint = NWEndpoint.hostPort(host: NWEndpoint.Host(self.address), port: NWEndpoint.Port(integerLiteral: UInt16(self.port)))
+            let incomingConnection = NWConnection(to: endpoint, using: .udp)
+            self.incomingConnection = incomingConnection
+            
+            let outgoingConnection = NWConnection(to: endpoint, using: .udp)
+            self.outgoingConnection = outgoingConnection
+            
+            incomingConnection.start(queue: self.queue.queue)
+            outgoingConnection.start(queue: self.queue.queue)
+            
+            self.receiveIncomingPacket()
+            self.receiveOutgoingPacket()
+            self.sendIncomingPingPackets()
+            
+            self.pingTimer = SwiftSignalKit.Timer(timeout: 1.0, repeat: true, completion: { [weak self] in
+                guard let self else {
+                    return
+                }
+                self.sendIncomingPingPackets()
+                self.sendOutgoingPingPackets()
+            }, queue: self.queue)
+            self.pingTimer?.start()
+            
+            self.sendPacketTimer = SwiftSignalKit.Timer(timeout: self.sendPacketInterval, repeat: true, completion: { [weak self] in
+                guard let self else {
+                    return
+                }
+                self.sendOutgoingPacket()
+            }, queue: self.queue)
+            self.sendPacketTimer?.start()
+            
+            self.bandwidthTimer = SwiftSignalKit.Timer(timeout: 1.0, repeat: true, completion: { [weak self] in
+                guard let self else {
+                    return
+                }
+                self.calculateStats()
+            }, queue: self.queue)
+            self.bandwidthTimer?.start()
+        }
+        
+        private func calculateStats() {
+            guard let firstReceiveTimestamp = self.firstReceiveTimestamp, let lastReceiveTimestamp = self.lastReceiveTimestamp else {
+                return
+            }
+            if self.sentPacketCount < self.maxPacketCount {
+                return
+            }
+            var totalSize = 0
+            var totalDelay: Double = 0.0
+            let totalTime: Double = lastReceiveTimestamp - firstReceiveTimestamp
+            
+            for item in self.packetSizeAndTimeToReceive {
+                totalSize += item.0
+                totalDelay += item.1
+            }
+            
+            let averageDelay: Double
+            if !self.packetSizeAndTimeToReceive.isEmpty {
+                averageDelay = totalDelay / Double(self.packetSizeAndTimeToReceive.count)
+            } else {
+                averageDelay = 0.0
+            }
+            
+            if totalTime != 0.0 {
+                let bandwidthBytesPerSecond = Int(Double(totalSize) / totalTime)
+                if let completion = self.completion {
+                    self.completion = nil
+                    completion(Results(
+                        bandwidthBytesPerSecond: bandwidthBytesPerSecond,
+                        expectedBandwidthBytesPerSecond: self.targetBandwidthBytesPerSecond,
+                        averageDelay: averageDelay
+                    ))
+                }
+            }
+        }
+        
+        private func sendIncomingPingPackets() {
+            guard let connection = self.incomingConnection else {
+                return
+            }
+            
+            var packetData = Data()
+            packetData.append(self.incomingTag)
+            
+            var controlByte1: UInt8 = 0xff
+            for _ in 0 ..< 12 {
+                packetData.append(&controlByte1, count: 1)
+            }
+            
+            var controlByte2: UInt8 = 0xfe
+            packetData.append(&controlByte2, count: 1)
+            for _ in 0 ..< 3 {
+                packetData.append(&controlByte1, count: 1)
+            }
+            
+            var testValue: UInt64 = 123
+            withUnsafeBytes(of: &testValue, { buffer -> Void in
+                packetData.append(buffer.assumingMemoryBound(to: UInt8.self).baseAddress!, count: 8)
+            })
+            
+            var zeroByte: UInt8 = 0
+            while packetData.count % 4 != 0 {
+                packetData.append(&zeroByte, count: 1)
+            }
+            
+            if self.incomingPingSendTimestamp == nil {
+                self.incomingPingSendTimestamp = CFAbsoluteTimeGetCurrent()
+            }
+            connection.send(content: packetData, completion: .contentProcessed({ _ in }))
+        }
+        
+        private func sendOutgoingPingPackets() {
+            guard let connection = self.outgoingConnection else {
+                return
+            }
+            
+            var packetData = Data()
+            packetData.append(self.outgoingTag)
+            
+            var controlByte1: UInt8 = 0xff
+            for _ in 0 ..< 12 {
+                packetData.append(&controlByte1, count: 1)
+            }
+            
+            var controlByte2: UInt8 = 0xfe
+            packetData.append(&controlByte2, count: 1)
+            for _ in 0 ..< 3 {
+                packetData.append(&controlByte1, count: 1)
+            }
+            
+            var testValue: UInt64 = 123
+            withUnsafeBytes(of: &testValue, { buffer -> Void in
+                packetData.append(buffer.assumingMemoryBound(to: UInt8.self).baseAddress!, count: 8)
+            })
+            
+            var zeroByte: UInt8 = 0
+            while packetData.count % 4 != 0 {
+                packetData.append(&zeroByte, count: 1)
+            }
+            
+            if self.outgoingPingSendTimestamp == nil {
+                self.outgoingPingSendTimestamp = CFAbsoluteTimeGetCurrent()
+            }
+            connection.send(content: packetData, completion: .contentProcessed({ _ in }))
+        }
+        
+        private func sendOutgoingPacket() {
+            let timestamp = CFAbsoluteTimeGetCurrent()
+            var timedOutPacketIds: [Data] = []
+            for (packetId, packetTimestamp) in self.unconfirmedPacketSendTimestamp {
+                let packetDelay = timestamp - packetTimestamp
+                if packetDelay > 2.0 {
+                    timedOutPacketIds.append(packetId)
+                    self.receivedPacketCount += 1
+                    self.lastReceiveTimestamp = timestamp
+                }
+            }
+            for packetId in timedOutPacketIds {
+                self.unconfirmedPacketSendTimestamp.removeValue(forKey: packetId)
+            }
+            if let outgoingPingSendTimestamp = self.outgoingPingSendTimestamp, !self.didReceiveOutgoingPing {
+                if outgoingPingSendTimestamp < timestamp - 2.0 {
+                    self.didReceiveOutgoingPing = true
+                    self.sentPacketCount = self.maxPacketCount
+                }
+            }
+            if let incomingPingSendTimestamp = self.incomingPingSendTimestamp, !self.didReceiveIncomingPing {
+                if incomingPingSendTimestamp < timestamp - 2.0 {
+                    self.didReceiveIncomingPing = true
+                    self.sentPacketCount = self.maxPacketCount
+                }
+            }
+            
+            guard let connection = self.outgoingConnection else {
+                return
+            }
+            if self.sentPacketCount >= self.maxPacketCount {
+                return
+            }
+            if !self.didReceiveIncomingPing && self.didReceiveOutgoingPing {
+                return
+            }
+            
+            let bandwidthAdjustedPacketLength: Int32 = Int32(Double(self.targetBandwidthBytesPerSecond) * self.sendPacketInterval) + Int32.random(in: 0 ..< 1 * 1024)
+            var remainingPacketLength = bandwidthAdjustedPacketLength
+            
+            while remainingPacketLength > 0 {
+                var packetData = Data()
+                
+                packetData.append(self.outgoingTag)
+                packetData.append(self.outgoingRandomTag)
+                
+                let packetLength = min(remainingPacketLength, 1 * 1024)
+                var dataLength: Int32 = 8 + bandwidthAdjustedPacketLength
+                withUnsafeBytes(of: &dataLength, { buffer -> Void in
+                    packetData.append(buffer.assumingMemoryBound(to: UInt8.self).baseAddress!, count: buffer.count)
+                })
+                
+                var packetId = Data(count: 8)
+                packetId.withUnsafeMutableBytes { buffer -> Void in
+                    arc4random_buf(buffer.baseAddress!, buffer.count)
+                }
+                packetData.append(packetId)
+                
+                var innerData = Data(count: Int(packetLength))
+                innerData.withUnsafeMutableBytes { buffer -> Void in
+                    arc4random_buf(buffer.baseAddress!, buffer.count)
+                }
+                packetData.append(innerData)
+                
+                var zeroByte: UInt8 = 0
+                while packetData.count % 4 != 0 {
+                    packetData.append(&zeroByte, count: 1)
+                }
+                
+                self.unconfirmedPacketSendTimestamp[packetId] = timestamp
+                remainingPacketLength -= packetLength
+                self.sentPacketCount += 1
+                
+                if self.firstReceiveTimestamp == nil {
+                    self.firstReceiveTimestamp = timestamp
+                }
+                
+                connection.send(content: packetData, completion: .contentProcessed({ _ in }))
+            }
+        }
+        
+        private func receiveIncomingPacket() {
+            guard let connection = self.incomingConnection else {
+                return
+            }
+            connection.receive(minimumIncompleteLength: 1, maximumLength: 32 * 1024, completion: { [weak self] content, _, _, error in
+                guard let self else {
+                    return
+                }
+                if let content {
+                    if content.count >= 16 + 4 + 4 + 8 {
+                        let tag = content.subdata(in: 0 ..< 16)
+                        if tag == self.incomingTag {
+                            let packetId = content.subdata(in: (16 + 4 + 4) ..< (16 + 4 + 4 + 8))
+                            if let sentTimestamp = self.unconfirmedPacketSendTimestamp.removeValue(forKey: packetId) {
+                                let timestamp = CFAbsoluteTimeGetCurrent()
+                                let packetSendReceiveDuration = timestamp - sentTimestamp
+                                self.lastReceiveTimestamp = timestamp
+                                self.receivedPacketCount += 1
+                                self.packetSizeAndTimeToReceive.append((content.count, packetSendReceiveDuration))
+                            } else {
+                                var pingHeaderData = Data()
+                                var controlByte1: UInt8 = 0xff
+                                for _ in 0 ..< 8 {
+                                    pingHeaderData.append(&controlByte1, count: 1)
+                                }
+                                let pingPacketId = content.subdata(in: 16 ..< (16 + 8))
+                                if pingPacketId == pingHeaderData {
+                                    self.didReceiveIncomingPing = true
+                                } else {
+                                    //print("Unknown incoming packet id")
+                                }
+                            }
+                        } else {
+                            print("Invalid incoming tag")
+                        }
+                    } else {
+                        print("Invalid content length: \(content.count)")
+                    }
+                } else {
+                    print("Incoming data receive error")
+                }
+                
+                self.receiveIncomingPacket()
+            })
+        }
+        
+        private func receiveOutgoingPacket() {
+            guard let connection = self.outgoingConnection else {
+                return
+            }
+            connection.receive(minimumIncompleteLength: 1, maximumLength: 32 * 1024, completion: { [weak self] content, _, _, error in
+                guard let self else {
+                    return
+                }
+                
+                if let content {
+                    if content.count >= 16 + 8 {
+                        let tag = content.subdata(in: 0 ..< 16)
+                        if tag == self.outgoingTag {
+                        let packetId = content.subdata(in: 16 ..< (16 + 8))
+                            var pingHeaderData = Data()
+                            var controlByte1: UInt8 = 0xff
+                            for _ in 0 ..< 8 {
+                                pingHeaderData.append(&controlByte1, count: 1)
+                            }
+                            if packetId == pingHeaderData {
+                                self.didReceiveOutgoingPing = true
+                            } else {
+                                print("Unknown outgoing packet id")
+                            }
+                        } else {
+                            print("Invalid outgoing tag")
+                        }
+                    } else {
+                        print("Invalid content length: \(content.count)")
+                    }
+                }
+                
+                self.receiveOutgoingPacket()
+            })
+        }
+    }
+    
+    private static let sharedQueue = Queue(name: "ReflectorBenchmark")
+    private let impl: QueueLocalObject<Impl>
+    
+    public init(address: String, port: Int) {
+        let queue = ReflectorBenchmark.sharedQueue
+        self.impl = QueueLocalObject(queue: queue, generate: {
+            return Impl(queue: queue, address: address, port: port)
+        })
+    }
+    
+    public func start(completion: @escaping (Results) -> Void) {
+        self.impl.with { impl in
+            impl.start(completion: completion)
+        }
+    }
+}

submodules/TelegramVoip/Sources/WrappedMediaStreamingContext.swift

@@ -0,0 +1,968 @@
+import Foundation
+import SwiftSignalKit
+import TgVoipWebrtc
+import TelegramCore
+import Network
+import Postbox
+import FFMpegBinding
+import ManagedFile
+
+@available(iOS 12.0, macOS 14.0, *)
+public final class WrappedMediaStreamingContext {
+    private final class Impl {
+        let queue: Queue
+        let context: MediaStreamingContext
+        
+        private let broadcastPartsSource = Atomic<BroadcastPartSource?>(value: nil)
+        
+        init(queue: Queue, rejoinNeeded: @escaping () -> Void) {
+            self.queue = queue
+            
+            var getBroadcastPartsSource: (() -> BroadcastPartSource?)?
+            
+            self.context = MediaStreamingContext(
+                queue: ContextQueueImpl(queue: queue),
+                requestCurrentTime: { completion in
+                    let disposable = MetaDisposable()
+
+                    queue.async {
+                        if let source = getBroadcastPartsSource?() {
+                            disposable.set(source.requestTime(completion: completion))
+                        } else {
+                            completion(0)
+                        }
+                    }
+
+                    return OngoingGroupCallBroadcastPartTaskImpl(disposable: disposable)
+                },
+                requestAudioBroadcastPart: { timestampMilliseconds, durationMilliseconds, completion in
+                    let disposable = MetaDisposable()
+                    
+                    queue.async {
+                        disposable.set(getBroadcastPartsSource?()?.requestPart(timestampMilliseconds: timestampMilliseconds, durationMilliseconds: durationMilliseconds, subject: .audio, completion: completion, rejoinNeeded: {
+                            rejoinNeeded()
+                        }))
+                    }
+                    
+                    return OngoingGroupCallBroadcastPartTaskImpl(disposable: disposable)
+                },
+                requestVideoBroadcastPart: { timestampMilliseconds, durationMilliseconds, channelId, quality, completion in
+                    let disposable = MetaDisposable()
+
+                    queue.async {
+                        let mappedQuality: OngoingGroupCallContext.VideoChannel.Quality
+                        switch quality {
+                        case .thumbnail:
+                            mappedQuality = .thumbnail
+                        case .medium:
+                            mappedQuality = .medium
+                        case .full:
+                            mappedQuality = .full
+                        @unknown default:
+                            mappedQuality = .thumbnail
+                        }
+                        disposable.set(getBroadcastPartsSource?()?.requestPart(timestampMilliseconds: timestampMilliseconds, durationMilliseconds: durationMilliseconds, subject: .video(channelId: channelId, quality: mappedQuality), completion: completion, rejoinNeeded: {
+                            rejoinNeeded()
+                        }))
+                    }
+
+                    return OngoingGroupCallBroadcastPartTaskImpl(disposable: disposable)
+                }
+            )
+            
+            let broadcastPartsSource = self.broadcastPartsSource
+            getBroadcastPartsSource = {
+                return broadcastPartsSource.with { $0 }
+            }
+        }
+        
+        deinit {
+        }
+        
+        func setAudioStreamData(audioStreamData: OngoingGroupCallContext.AudioStreamData?) {
+            if let audioStreamData = audioStreamData {
+                let broadcastPartsSource = NetworkBroadcastPartSource(queue: self.queue, engine: audioStreamData.engine, callId: audioStreamData.callId, accessHash: audioStreamData.accessHash, isExternalStream: audioStreamData.isExternalStream)
+                let _ = self.broadcastPartsSource.swap(broadcastPartsSource)
+                self.context.start()
+            }
+        }
+
+        func video() -> Signal<OngoingGroupCallContext.VideoFrameData, NoError> {
+            let queue = self.queue
+            return Signal { [weak self] subscriber in
+                let disposable = MetaDisposable()
+
+                queue.async {
+                    guard let strongSelf = self else {
+                        return
+                    }
+                    let innerDisposable = strongSelf.context.addVideoOutput() { videoFrameData in
+                        subscriber.putNext(OngoingGroupCallContext.VideoFrameData(frameData: videoFrameData))
+                    }
+                    disposable.set(ActionDisposable {
+                        innerDisposable.dispose()
+                    })
+                }
+
+                return disposable
+            }
+        }
+    }
+    
+    private let queue = Queue()
+    private let impl: QueueLocalObject<Impl>
+    
+    public init(rejoinNeeded: @escaping () -> Void) {
+        let queue = self.queue
+        self.impl = QueueLocalObject(queue: queue, generate: {
+            return Impl(queue: queue, rejoinNeeded: rejoinNeeded)
+        })
+    }
+    
+    public func setAudioStreamData(audioStreamData: OngoingGroupCallContext.AudioStreamData?) {
+        self.impl.with { impl in
+            impl.setAudioStreamData(audioStreamData: audioStreamData)
+        }
+    }
+
+    public func video() -> Signal<OngoingGroupCallContext.VideoFrameData, NoError> {
+        return Signal { subscriber in
+            let disposable = MetaDisposable()
+            self.impl.with { impl in
+                disposable.set(impl.video().start(next: { value in
+                    subscriber.putNext(value)
+                }))
+            }
+            return disposable
+        }
+    }
+}
+@available(iOS 12.0, macOS 14.0, *)
+public final class ExternalMediaStreamingContext: SharedHLSServerSource {
+    private final class Impl {
+        let queue: Queue
+        
+        private var broadcastPartsSource: BroadcastPartSource?
+        
+        private let resetPlaylistDisposable = MetaDisposable()
+        private let updatePlaylistDisposable = MetaDisposable()
+        
+        let masterPlaylistData = Promise<String>()
+        let playlistData = Promise<String>()
+        let mediumPlaylistData = Promise<String>()
+        
+        init(queue: Queue, rejoinNeeded: @escaping () -> Void) {
+            self.queue = queue
+        }
+        
+        deinit {
+            self.updatePlaylistDisposable.dispose()
+        }
+        
+        func setAudioStreamData(audioStreamData: OngoingGroupCallContext.AudioStreamData?) {
+            if let audioStreamData {
+                let broadcastPartsSource = NetworkBroadcastPartSource(queue: self.queue, engine: audioStreamData.engine, callId: audioStreamData.callId, accessHash: audioStreamData.accessHash, isExternalStream: audioStreamData.isExternalStream)
+                self.broadcastPartsSource = broadcastPartsSource
+                
+                self.updatePlaylistDisposable.set(nil)
+                
+                let queue = self.queue
+                self.resetPlaylistDisposable.set(broadcastPartsSource.requestTime(completion: { [weak self] timestamp in
+                    queue.async {
+                        guard let self else {
+                            return
+                        }
+                        
+                        let segmentDuration: Int64 = 1000
+                        
+                        var adjustedTimestamp: Int64 = 0
+                        if timestamp > 0 {
+                            adjustedTimestamp = timestamp / segmentDuration * segmentDuration - 4 * segmentDuration
+                        }
+                        
+                        if adjustedTimestamp > 0 {
+                            var masterPlaylistData = "#EXTM3U\n" +
+                            "#EXT-X-VERSION:6\n" +
+                            "#EXT-X-STREAM-INF:BANDWIDTH=3300000,RESOLUTION=1280x720,CODECS=\"avc1.64001f,mp4a.40.2\"\n" +
+                            "hls_level_0.m3u8\n"
+                            
+                            masterPlaylistData += "#EXT-X-STREAM-INF:BANDWIDTH=1000000,RESOLUTION=640x360,CODECS=\"avc1.64001f,mp4a.40.2\"\n" +
+                            "hls_level_1.m3u8\n"
+                            
+                            self.masterPlaylistData.set(.single(masterPlaylistData))
+                            
+                            self.beginUpdatingPlaylist(initialHeadTimestamp: adjustedTimestamp)
+                        }
+                    }
+                }))
+            }
+        }
+        
+        private func beginUpdatingPlaylist(initialHeadTimestamp: Int64) {
+            let segmentDuration: Int64 = 1000
+            
+            var timestamp = initialHeadTimestamp
+            self.updatePlaylist(headTimestamp: timestamp, quality: 0)
+            self.updatePlaylist(headTimestamp: timestamp, quality: 1)
+            
+            self.updatePlaylistDisposable.set((
+                Signal<Void, NoError>.single(Void())
+                |> delay(1.0, queue: self.queue)
+                |> restart
+                |> deliverOn(self.queue)
+            ).start(next: { [weak self] _ in
+                guard let self else {
+                    return
+                }
+                
+                timestamp += segmentDuration
+                self.updatePlaylist(headTimestamp: timestamp, quality: 0)
+                self.updatePlaylist(headTimestamp: timestamp, quality: 1)
+            }))
+        }
+        
+        private func updatePlaylist(headTimestamp: Int64, quality: Int) {
+            let segmentDuration: Int64 = 1000
+            let headIndex = headTimestamp / segmentDuration
+            let minIndex = headIndex - 20
+            
+            var playlistData = "#EXTM3U\n" +
+            "#EXT-X-VERSION:6\n" +
+            "#EXT-X-TARGETDURATION:1\n" +
+            "#EXT-X-MEDIA-SEQUENCE:\(minIndex)\n" +
+            "#EXT-X-INDEPENDENT-SEGMENTS\n"
+            
+            for index in minIndex ... headIndex {
+                playlistData.append("#EXTINF:1.000000,\n")
+                playlistData.append("hls_stream\(quality)_\(index).ts\n")
+            }
+            
+            //print("Player: updating playlist \(quality) \(minIndex) ... \(headIndex)")
+            
+            if quality == 0 {
+                self.playlistData.set(.single(playlistData))
+            } else {
+                self.mediumPlaylistData.set(.single(playlistData))
+            }
+        }
+        
+        func partData(index: Int, quality: Int) -> Signal<Data?, NoError> {
+            let segmentDuration: Int64 = 1000
+            let timestamp = Int64(index) * segmentDuration
+            
+            print("Player: request part(q: \(quality)) \(index) -> \(timestamp)")
+            
+            guard let broadcastPartsSource = self.broadcastPartsSource else {
+                return .single(nil)
+            }
+            
+            return Signal { subscriber in
+                return broadcastPartsSource.requestPart(
+                    timestampMilliseconds: timestamp,
+                    durationMilliseconds: segmentDuration,
+                    subject: .video(channelId: 1, quality: quality == 0 ? .full : .medium),
+                    completion: { part in
+                        var data = part.oggData
+                        if data.count > 32 {
+                            data = data.subdata(in: 32 ..< data.count)
+                        }
+                        subscriber.putNext(data)
+                    },
+                    rejoinNeeded: {
+                        //TODO
+                    }
+                )
+            }
+        }
+        
+        func fileData(id: Int64, range: Range<Int>) -> Signal<(TempBoxFile, Range<Int>, Int)?, NoError> {
+            return .never()
+        }
+    }
+    
+    private let queue = Queue()
+    let internalId: CallSessionInternalId
+    private let impl: QueueLocalObject<Impl>
+    private var hlsServerDisposable: Disposable?
+    
+    public var id: String {
+        return self.internalId.uuidString
+    }
+    
+    public init(id: CallSessionInternalId, rejoinNeeded: @escaping () -> Void) {
+        self.internalId = id
+        let queue = self.queue
+        self.impl = QueueLocalObject(queue: queue, generate: {
+            return Impl(queue: queue, rejoinNeeded: rejoinNeeded)
+        })
+        
+        self.hlsServerDisposable = SharedHLSServer.shared.registerPlayer(source: self, completion: {})
+    }
+    
+    deinit {
+        self.hlsServerDisposable?.dispose()
+    }
+    
+    public func setAudioStreamData(audioStreamData: OngoingGroupCallContext.AudioStreamData?) {
+        self.impl.with { impl in
+            impl.setAudioStreamData(audioStreamData: audioStreamData)
+        }
+    }
+    
+    public func masterPlaylistData() -> Signal<String, NoError> {
+        return self.impl.signalWith { impl, subscriber in
+            impl.masterPlaylistData.get().start(next: subscriber.putNext)
+        }
+    }
+    
+    public func playlistData(quality: Int) -> Signal<String, NoError> {
+        return self.impl.signalWith { impl, subscriber in
+            if quality == 0 {
+                impl.playlistData.get().start(next: subscriber.putNext)
+            } else {
+                impl.mediumPlaylistData.get().start(next: subscriber.putNext)
+            }
+        }
+    }
+    
+    public func partData(index: Int, quality: Int) -> Signal<Data?, NoError> {
+        return self.impl.signalWith { impl, subscriber in
+            impl.partData(index: index, quality: quality).start(next: subscriber.putNext)
+        }
+    }
+    
+    public func fileData(id: Int64, range: Range<Int>) -> Signal<(TempBoxFile, Range<Int>, Int)?, NoError> {
+        return self.impl.signalWith { impl, subscriber in
+            impl.fileData(id: id, range: range).start(next: subscriber.putNext)
+        }
+    }
+    
+    public func arbitraryFileData(path: String) -> Signal<(data: Data, contentType: String)?, NoError> {
+        return .single(nil)
+    }
+}
+
+public final class DirectMediaStreamingContext {
+    public struct Playlist: Equatable {
+        public struct Part: Equatable {
+            public let index: Int
+            public let timestamp: Double
+            public let duration: Double
+            
+            public init(index: Int, timestamp: Double, duration: Double) {
+                self.index = index
+                self.timestamp = timestamp
+                self.duration = duration
+            }
+        }
+        
+        public var parts: [Part]
+        
+        public init(parts: [Part]) {
+            self.parts = parts
+        }
+    }
+    
+    private final class Impl {
+        let queue: Queue
+        
+        private var broadcastPartsSource: BroadcastPartSource?
+        
+        private let resetPlaylistDisposable = MetaDisposable()
+        private let updatePlaylistDisposable = MetaDisposable()
+        
+        let playlistData = Promise<Playlist>()
+        
+        init(queue: Queue, rejoinNeeded: @escaping () -> Void) {
+            self.queue = queue
+        }
+        
+        deinit {
+            self.updatePlaylistDisposable.dispose()
+        }
+        
+        func setAudioStreamData(audioStreamData: OngoingGroupCallContext.AudioStreamData?) {
+            if let audioStreamData {
+                let broadcastPartsSource = NetworkBroadcastPartSource(queue: self.queue, engine: audioStreamData.engine, callId: audioStreamData.callId, accessHash: audioStreamData.accessHash, isExternalStream: audioStreamData.isExternalStream)
+                self.broadcastPartsSource = broadcastPartsSource
+                
+                self.updatePlaylistDisposable.set(nil)
+                
+                let queue = self.queue
+                self.resetPlaylistDisposable.set(broadcastPartsSource.requestTime(completion: { [weak self] timestamp in
+                    queue.async {
+                        guard let self else {
+                            return
+                        }
+                        
+                        let segmentDuration: Int64 = 1000
+                        
+                        var adjustedTimestamp: Int64 = 0
+                        if timestamp > 0 {
+                            adjustedTimestamp = timestamp / segmentDuration * segmentDuration - 4 * segmentDuration
+                        }
+                        
+                        if adjustedTimestamp > 0 {
+                            self.beginUpdatingPlaylist(initialHeadTimestamp: adjustedTimestamp)
+                        }
+                    }
+                }))
+            }
+        }
+        
+        private func beginUpdatingPlaylist(initialHeadTimestamp: Int64) {
+            let segmentDuration: Int64 = 1000
+            
+            var timestamp = initialHeadTimestamp
+            self.updatePlaylist(headTimestamp: timestamp)
+            
+            self.updatePlaylistDisposable.set((
+                Signal<Void, NoError>.single(Void())
+                |> delay(1.0, queue: self.queue)
+                |> restart
+                |> deliverOn(self.queue)
+            ).start(next: { [weak self] _ in
+                guard let self else {
+                    return
+                }
+                
+                timestamp += segmentDuration
+                self.updatePlaylist(headTimestamp: timestamp)
+            }))
+        }
+        
+        private func updatePlaylist(headTimestamp: Int64) {
+            let segmentDuration: Int64 = 1000
+            let headIndex = headTimestamp / segmentDuration
+            let minIndex = headIndex - 20
+            
+            var parts: [Playlist.Part] = []
+            for index in minIndex ... headIndex {
+                parts.append(DirectMediaStreamingContext.Playlist.Part(
+                    index: Int(index),
+                    timestamp: Double(index),
+                    duration: 1.0
+                ))
+            }
+            
+            self.playlistData.set(.single(Playlist(parts: parts)))
+        }
+        
+        func partData(index: Int) -> Signal<Data?, NoError> {
+            let segmentDuration: Int64 = 1000
+            let timestamp = Int64(index) * segmentDuration
+            
+            //print("Player: request part(q: \(quality)) \(index) -> \(timestamp)")
+            
+            guard let broadcastPartsSource = self.broadcastPartsSource else {
+                return .single(nil)
+            }
+            
+            return Signal { subscriber in
+                return broadcastPartsSource.requestPart(
+                    timestampMilliseconds: timestamp,
+                    durationMilliseconds: segmentDuration,
+                    subject: .video(channelId: 1, quality: .full),
+                    completion: { part in
+                        var data = part.oggData
+                        if data.count > 32 {
+                            data = data.subdata(in: 32 ..< data.count)
+                        }
+                        subscriber.putNext(data)
+                    },
+                    rejoinNeeded: {
+                        //TODO
+                    }
+                )
+            }
+        }
+    }
+    
+    private let queue = Queue()
+    let internalId: CallSessionInternalId
+    private let impl: QueueLocalObject<Impl>
+    private var hlsServerDisposable: Disposable?
+    
+    public init(id: CallSessionInternalId, rejoinNeeded: @escaping () -> Void) {
+        self.internalId = id
+        let queue = self.queue
+        self.impl = QueueLocalObject(queue: queue, generate: {
+            return Impl(queue: queue, rejoinNeeded: rejoinNeeded)
+        })
+    }
+    
+    deinit {
+    }
+    
+    public func setAudioStreamData(audioStreamData: OngoingGroupCallContext.AudioStreamData?) {
+        self.impl.with { impl in
+            impl.setAudioStreamData(audioStreamData: audioStreamData)
+        }
+    }
+    
+    public func playlistData() -> Signal<Playlist, NoError> {
+        return self.impl.signalWith { impl, subscriber in
+            impl.playlistData.get().start(next: subscriber.putNext)
+        }
+    }
+    
+    public func partData(index: Int) -> Signal<Data?, NoError> {
+        return self.impl.signalWith { impl, subscriber in
+            impl.partData(index: index).start(next: subscriber.putNext)
+        }
+    }
+}
+
+public protocol SharedHLSServerSource: AnyObject {
+    var id: String { get }
+    
+    func masterPlaylistData() -> Signal<String, NoError>
+    func playlistData(quality: Int) -> Signal<String, NoError>
+    func partData(index: Int, quality: Int) -> Signal<Data?, NoError>
+    func fileData(id: Int64, range: Range<Int>) -> Signal<(TempBoxFile, Range<Int>, Int)?, NoError>
+    func arbitraryFileData(path: String) -> Signal<(data: Data, contentType: String)?, NoError>
+}
+
+@available(iOS 12.0, macOS 14.0, *)
+public final class SharedHLSServer {
+    public typealias Source = SharedHLSServerSource
+    
+    public static let shared: SharedHLSServer = {
+        return SharedHLSServer()
+    }()
+    
+    private enum ResponseError {
+        case badRequest
+        case notFound
+        case internalServerError
+        
+        var httpString: String {
+            switch self {
+            case .badRequest:
+                return "400 Bad Request"
+            case .notFound:
+                return "404 Not Found"
+            case .internalServerError:
+                return "500 Internal Server Error"
+            }
+        }
+    }
+    
+    private final class SourceReference {
+        weak var source: SharedHLSServerSource?
+        
+        init(source: SharedHLSServerSource) {
+            self.source = source
+        }
+    }
+    @available(iOS 12.0, macOS 14.0, *)
+    private final class Impl {
+        private let queue: Queue
+        
+        private let port: NWEndpoint.Port
+        private var listener: NWListener?
+        
+        private var sourceReferences = Bag<SourceReference>()
+        private var referenceCheckTimer: SwiftSignalKit.Timer?
+        private var shutdownTimer: SwiftSignalKit.Timer?
+        
+        init(queue: Queue, port: UInt16) {
+            self.queue = queue
+            self.port = NWEndpoint.Port(rawValue: port)!
+        }
+        
+        deinit {
+            self.referenceCheckTimer?.invalidate()
+            self.shutdownTimer?.invalidate()
+        }
+        
+        private func updateNeedsListener() {
+            var isEmpty = true
+            for item in self.sourceReferences.copyItems() {
+                if let _ = item.source {
+                    isEmpty = false
+                    break
+                }
+            }
+            
+            if isEmpty {
+                if self.listener != nil {
+                    if self.shutdownTimer == nil {
+                        self.shutdownTimer = SwiftSignalKit.Timer(timeout: 1.0, repeat: false, completion: { [weak self] in
+                            guard let self else {
+                                return
+                            }
+                            self.shutdownTimer = nil
+                            self.stopListener()
+                        }, queue: self.queue)
+                        self.shutdownTimer?.start()
+                    }
+                }
+                if let referenceCheckTimer = self.referenceCheckTimer {
+                    self.referenceCheckTimer = nil
+                    referenceCheckTimer.invalidate()
+                }
+            } else {
+                if let shutdownTimer = self.shutdownTimer {
+                    self.shutdownTimer = nil
+                    shutdownTimer.invalidate()
+                }
+                if self.listener == nil {
+                    self.startListener()
+                }
+                if self.referenceCheckTimer == nil {
+                    self.referenceCheckTimer = SwiftSignalKit.Timer(timeout: 1.0, repeat: true, completion: { [weak self] in
+                        guard let self else {
+                            return
+                        }
+                        self.updateNeedsListener()
+                    }, queue: self.queue)
+                    self.referenceCheckTimer?.start()
+                }
+            }
+        }
+        
+        private func startListener() {
+            let listener: NWListener
+            do {
+                listener = try NWListener(using: .tcp, on: self.port)
+            } catch {
+                Logger.shared.log("SharedHLSServer", "Failed to create listener: \(error)")
+                return
+            }
+            self.listener = listener
+            
+            listener.newConnectionHandler = { [weak self] connection in
+                guard let self else {
+                    return
+                }
+                self.handleConnection(connection: connection)
+            }
+            
+            listener.stateUpdateHandler = { [weak self, weak listener] state in
+                guard let self, let listener else {
+                    return
+                }
+                switch state {
+                case .ready:
+                    Logger.shared.log("SharedHLSServer", "Server is ready on port \(self.port)")
+                case let .failed(error):
+                    Logger.shared.log("SharedHLSServer", "Server failed with error: \(error)")
+                    listener.cancel()
+                    
+                    listener.start(queue: self.queue.queue)
+                default:
+                    break
+                }
+            }
+            
+            listener.start(queue: self.queue.queue)
+        }
+        
+        private func stopListener() {
+            guard let listener = self.listener else {
+                return
+            }
+            self.listener = nil
+            listener.cancel()
+        }
+        
+        private func handleConnection(connection: NWConnection) {
+            connection.start(queue: self.queue.queue)
+            connection.receive(minimumIncompleteLength: 1, maximumLength: 32 * 1024, completion: { [weak self] data, _, isComplete, error in
+                guard let self else {
+                    return
+                }
+                if let data, !data.isEmpty {
+                    self.handleRequest(data: data, connection: connection)
+                } else if isComplete {
+                    connection.cancel()
+                } else if let error = error {
+                    Logger.shared.log("SharedHLSServer", "Error on connection: \(error)")
+                    connection.cancel()
+                }
+            })
+        }
+        
+        private func handleRequest(data: Data, connection: NWConnection) {
+            guard let requestString = String(data: data, encoding: .utf8) else {
+                connection.cancel()
+                return
+            }
+            
+            if !requestString.hasPrefix("GET /") {
+                self.sendErrorAndClose(connection: connection)
+                return
+            }
+            guard let firstCrLf = requestString.range(of: "\r\n") else {
+                self.sendErrorAndClose(connection: connection)
+                return
+            }
+            let firstLine = String(requestString[requestString.index(requestString.startIndex, offsetBy: "GET /".count) ..< firstCrLf.lowerBound])
+            if !(firstLine.hasSuffix(" HTTP/1.0") || firstLine.hasSuffix(" HTTP/1.1")) {
+                self.sendErrorAndClose(connection: connection)
+                return
+            }
+            
+            let requestPath = String(firstLine[firstLine.startIndex ..< firstLine.index(firstLine.endIndex, offsetBy: -" HTTP/1.1".count)])
+            var requestRange: Range<Int>?
+            if let rangeRange = requestString.range(of: "Range: bytes=") {
+                if let endRange = requestString.range(of: "\r\n", range: rangeRange.upperBound ..< requestString.endIndex) {
+                    let rangeString = String(requestString[rangeRange.upperBound ..< endRange.lowerBound])
+                    if let dashRange = rangeString.range(of: "-") {
+                        let lowerBoundString = String(rangeString[rangeString.startIndex ..< dashRange.lowerBound])
+                        let upperBoundString = String(rangeString[dashRange.upperBound ..< rangeString.endIndex])
+                        
+                        if let lowerBound = Int(lowerBoundString), let upperBound = Int(upperBoundString) {
+                            requestRange = lowerBound ..< upperBound
+                        }
+                    }
+                }
+            }
+            
+            guard let firstSlash = requestPath.range(of: "/") else {
+                self.sendErrorAndClose(connection: connection, error: .notFound)
+                return
+            }
+            let streamId = String(requestPath[requestPath.startIndex ..< firstSlash.lowerBound])
+            guard let source = self.sourceReferences.copyItems().first(where: { $0.source?.id == streamId })?.source else {
+                self.sendErrorAndClose(connection: connection)
+                return
+            }
+            
+            let filePath = String(requestPath[firstSlash.upperBound...])
+            if filePath == "master.m3u8" {
+                let _ = (source.masterPlaylistData()
+                |> deliverOn(self.queue)
+                |> take(1)).start(next: { [weak self] result in
+                    guard let self else {
+                        return
+                    }
+                    
+                    self.sendResponseAndClose(connection: connection, data: result.data(using: .utf8)!)
+                })
+            } else if filePath.hasPrefix("hls_level_") && filePath.hasSuffix(".m3u8") {
+                guard let levelIndex = Int(String(filePath[filePath.index(filePath.startIndex, offsetBy: "hls_level_".count) ..< filePath.index(filePath.endIndex, offsetBy: -".m3u8".count)])) else {
+                    self.sendErrorAndClose(connection: connection)
+                    return
+                }
+                
+                let _ = (source.playlistData(quality: levelIndex)
+                |> deliverOn(self.queue)
+                |> take(1)).start(next: { [weak self] result in
+                    guard let self else {
+                        return
+                    }
+                    
+                    self.sendResponseAndClose(connection: connection, data: result.data(using: .utf8)!)
+                })
+            } else if filePath.hasPrefix("hls_stream") && filePath.hasSuffix(".ts") {
+                let fileId = String(filePath[filePath.index(filePath.startIndex, offsetBy: "hls_stream".count) ..< filePath.index(filePath.endIndex, offsetBy: -".ts".count)])
+                guard let underscoreRange = fileId.range(of: "_") else {
+                    self.sendErrorAndClose(connection: connection)
+                    return
+                }
+                guard let levelIndex = Int(String(fileId[fileId.startIndex ..< underscoreRange.lowerBound])) else {
+                    self.sendErrorAndClose(connection: connection)
+                    return
+                }
+                guard let partIndex = Int(String(fileId[underscoreRange.upperBound...])) else {
+                    self.sendErrorAndClose(connection: connection)
+                    return
+                }
+                let _ = (source.partData(index: partIndex, quality: levelIndex)
+                |> deliverOn(self.queue)
+                |> take(1)).start(next: { [weak self] result in
+                    guard let self else {
+                        return
+                    }
+                    
+                    if let result {
+                        let sourceTempFile = TempBox.shared.tempFile(fileName: "part.mp4")
+                        let tempFile = TempBox.shared.tempFile(fileName: "part.ts")
+                        defer {
+                            TempBox.shared.dispose(sourceTempFile)
+                            TempBox.shared.dispose(tempFile)
+                        }
+                        
+                        guard let _ = try? result.write(to: URL(fileURLWithPath: sourceTempFile.path)) else {
+                            self.sendErrorAndClose(connection: connection, error: .internalServerError)
+                            return
+                        }
+                        
+                        let sourcePath = sourceTempFile.path
+                        FFMpegLiveMuxer.remux(sourcePath, to: tempFile.path, offsetSeconds: Double(partIndex))
+                        
+                        if let data = try? Data(contentsOf: URL(fileURLWithPath: tempFile.path)) {
+                            self.sendResponseAndClose(connection: connection, data: data)
+                        } else {
+                            self.sendErrorAndClose(connection: connection, error: .internalServerError)
+                        }
+                    } else {
+                        self.sendErrorAndClose(connection: connection, error: .notFound)
+                    }
+                })
+            } else if filePath.hasPrefix("partfile") && filePath.hasSuffix(".mp4") {
+                let fileId = String(filePath[filePath.index(filePath.startIndex, offsetBy: "partfile".count) ..< filePath.index(filePath.endIndex, offsetBy: -".mp4".count)])
+                guard let fileIdValue = Int64(fileId) else {
+                    self.sendErrorAndClose(connection: connection)
+                    return
+                }
+                guard let requestRange else {
+                    self.sendErrorAndClose(connection: connection)
+                    return
+                }
+                let _ = (source.fileData(id: fileIdValue, range: requestRange.lowerBound ..< requestRange.upperBound + 1)
+                |> deliverOn(self.queue)
+                //|> timeout(5.0, queue: self.queue, alternate: .single(nil))
+                |> take(1)).start(next: { [weak self] result in
+                    guard let self else {
+                        return
+                    }
+                    
+                    if let (tempFile, tempFileRange, totalSize) = result {
+                        self.sendResponseFileAndClose(connection: connection, file: tempFile, fileRange: tempFileRange, range: requestRange, totalSize: totalSize)
+                    } else {
+                        self.sendErrorAndClose(connection: connection, error: .internalServerError)
+                    }
+                })
+            } else {
+                let _ = (source.arbitraryFileData(path: filePath)
+                |> deliverOn(self.queue)
+                |> take(1)).start(next: { [weak self] result in
+                    guard let self else {
+                        return
+                    }
+                    
+                    if let result {
+                        self.sendResponseAndClose(connection: connection, data: result.data, contentType: result.contentType)
+                    } else {
+                        self.sendErrorAndClose(connection: connection, error: .notFound)
+                    }
+                })
+            }
+        }
+        
+        private func sendErrorAndClose(connection: NWConnection, error: ResponseError = .badRequest) {
+            let errorResponse = "HTTP/1.1 \(error.httpString)\r\nContent-Type: text/html\r\nConnection: close\r\n\r\n"
+            connection.send(content: errorResponse.data(using: .utf8), completion: .contentProcessed { error in
+                if let error {
+                    Logger.shared.log("SharedHLSServer", "Failed to send response: \(error)")
+                }
+                connection.cancel()
+            })
+        }
+        
+        private func sendResponseAndClose(connection: NWConnection, data: Data, contentType: String = "application/octet-stream", range: Range<Int>? = nil, totalSize: Int? = nil) {
+            var responseHeaders = "HTTP/1.1 200 OK\r\n"
+            responseHeaders.append("Content-Length: \(data.count)\r\n")
+            if let range, let totalSize {
+                responseHeaders.append("Content-Range: bytes \(range.lowerBound)-\(range.upperBound)/\(totalSize)\r\n")
+            }
+            
+            responseHeaders.append("Content-Type: \(contentType)\r\n")
+            responseHeaders.append("Connection: close\r\n")
+            responseHeaders.append("Access-Control-Allow-Origin: *\r\n")
+            responseHeaders.append("\r\n")
+            var responseData = Data()
+            responseData.append(responseHeaders.data(using: .utf8)!)
+            responseData.append(data)
+            connection.send(content: responseData, completion: .contentProcessed { error in
+                if let error {
+                    Logger.shared.log("SharedHLSServer", "Failed to send response: \(error)")
+                }
+                connection.cancel()
+            })
+        }
+        
+        private static func sendRemainingFileRange(queue: Queue, connection: NWConnection, tempFile: TempBoxFile, managedFile: ManagedFile, remainingRange: Range<Int>, fileSize: Int) -> Void {
+            let blockSize = 256 * 1024
+            
+            let clippedLowerBound = min(remainingRange.lowerBound, fileSize)
+            var clippedUpperBound = min(remainingRange.upperBound, fileSize)
+            clippedUpperBound = min(clippedUpperBound, clippedLowerBound + blockSize)
+            
+            if clippedUpperBound == clippedLowerBound {
+                TempBox.shared.dispose(tempFile)
+                connection.cancel()
+            } else {
+                let _ = managedFile.seek(position: Int64(clippedLowerBound))
+                let data = managedFile.readData(count: Int(clippedUpperBound - clippedLowerBound))
+                let nextRange = clippedUpperBound ..< remainingRange.upperBound
+                
+                connection.send(content: data, completion: .contentProcessed { error in
+                    queue.async {
+                        if let error {
+                            Logger.shared.log("SharedHLSServer", "Failed to send response: \(error)")
+                            connection.cancel()
+                            TempBox.shared.dispose(tempFile)
+                        } else {
+                            sendRemainingFileRange(queue: queue, connection: connection, tempFile: tempFile, managedFile: managedFile, remainingRange: nextRange, fileSize: fileSize)
+                        }
+                    }
+                })
+            }
+        }
+        
+        private func sendResponseFileAndClose(connection: NWConnection, file: TempBoxFile, fileRange: Range<Int>, range: Range<Int>, totalSize: Int) {
+            let queue = self.queue
+            
+            guard let managedFile = ManagedFile(queue: nil, path: file.path, mode: .read), let fileSize = managedFile.getSize() else {
+                self.sendErrorAndClose(connection: connection, error: .internalServerError)
+                TempBox.shared.dispose(file)
+                return
+            }
+            
+            var responseHeaders = "HTTP/1.1 200 OK\r\n"
+            responseHeaders.append("Content-Length: \(fileRange.upperBound - fileRange.lowerBound)\r\n")
+            responseHeaders.append("Content-Range: bytes \(range.lowerBound)-\(range.upperBound)/\(totalSize)\r\n")
+            responseHeaders.append("Content-Type: application/octet-stream\r\n")
+            responseHeaders.append("Connection: close\r\n")
+            responseHeaders.append("Access-Control-Allow-Origin: *\r\n")
+            responseHeaders.append("\r\n")
+            
+            connection.send(content: responseHeaders.data(using: .utf8)!, completion: .contentProcessed({ _ in }))
+            
+            Impl.sendRemainingFileRange(queue: queue, connection: connection, tempFile: file, managedFile: managedFile, remainingRange: fileRange, fileSize: Int(fileSize))
+        }
+        
+        func registerPlayer(source: SharedHLSServerSource, completion: @escaping () -> Void) -> Disposable {
+            let queue = self.queue
+            let index = self.sourceReferences.add(SourceReference(source: source))
+            self.updateNeedsListener()
+            completion()
+            
+            return ActionDisposable { [weak self] in
+                queue.async {
+                    guard let self else {
+                        return
+                    }
+                    self.sourceReferences.remove(index)
+                    self.updateNeedsListener()
+                }
+            }
+        }
+    }
+    
+    private static let queue = Queue(name: "SharedHLSServer")
+    public let port: UInt16 = 8016
+    private let impl: QueueLocalObject<Impl>
+    
+    private init() {
+        let queue = SharedHLSServer.queue
+        let port = self.port
+        self.impl = QueueLocalObject(queue: queue, generate: {
+            return Impl(queue: queue, port: port)
+        })
+    }
+    
+    public func registerPlayer(source: SharedHLSServerSource, completion: @escaping () -> Void) -> Disposable {
+        let disposable = MetaDisposable()
+        
+        self.impl.with { impl in
+            disposable.set(impl.registerPlayer(source: source, completion: completion))
+        }
+        
+        return disposable
+    }
+}

submodules/TelegramVoip/Sources/macOS/OngoingCallVideoCapturer.swift

@@ -0,0 +1,160 @@
+//
+//  OngoingCallVideoCapturer.swift
+//  TelegramVoip
+//
+//  Created by Mikhail Filimonov on 07.01.2021.
+//
+
+import Foundation
+import Cocoa
+import TgVoipWebrtc
+import SwiftSignalKit
+
+
+public enum OngoingCallVideoOrientation {
+    case rotation0
+    case rotation90
+    case rotation180
+    case rotation270
+}
+
+public extension OngoingCallVideoOrientation {
+    init(_ orientation: OngoingCallVideoOrientationWebrtc) {
+        switch orientation {
+        case .orientation0:
+            self = .rotation0
+        case .orientation90:
+            self = .rotation90
+        case .orientation180:
+            self = .rotation180
+        case .orientation270:
+            self = .rotation270
+        @unknown default:
+            self = .rotation0
+        }
+    }
+}
+
+
+
+public final class OngoingCallContextPresentationCallVideoView {
+    public let view: NSView
+    public let setOnFirstFrameReceived: (((Float) -> Void)?) -> Void
+    public let getOrientation: () -> OngoingCallVideoOrientation
+    public let getAspect: () -> CGFloat
+    public let setOnOrientationUpdated: (((OngoingCallVideoOrientation, CGFloat) -> Void)?) -> Void
+    public let setVideoContentMode: (CALayerContentsGravity) -> Void
+    public let setOnIsMirroredUpdated: (((Bool) -> Void)?) -> Void
+    public let setIsPaused: (Bool) -> Void
+    public let renderToSize:(NSSize, Bool)->Void
+    public init(
+        view: NSView,
+        setOnFirstFrameReceived: @escaping (((Float) -> Void)?) -> Void,
+        getOrientation: @escaping () -> OngoingCallVideoOrientation,
+        getAspect: @escaping () -> CGFloat,
+        setOnOrientationUpdated: @escaping (((OngoingCallVideoOrientation, CGFloat) -> Void)?) -> Void,
+        setVideoContentMode: @escaping(CALayerContentsGravity) -> Void,
+        setOnIsMirroredUpdated: @escaping (((Bool) -> Void)?) -> Void,
+        setIsPaused: @escaping(Bool) -> Void,
+        renderToSize: @escaping(NSSize, Bool) -> Void
+        ) {
+        self.view = view
+        self.setOnFirstFrameReceived = setOnFirstFrameReceived
+        self.getOrientation = getOrientation
+        self.getAspect = getAspect
+        self.setOnOrientationUpdated = setOnOrientationUpdated
+        self.setVideoContentMode = setVideoContentMode
+        self.setOnIsMirroredUpdated = setOnIsMirroredUpdated
+        self.setIsPaused = setIsPaused
+        self.renderToSize = renderToSize
+    }
+}
+
+
+
+public final class OngoingCallVideoCapturer {
+    public let impl: OngoingCallThreadLocalContextVideoCapturer
+    public let deviceId: String
+    public init(_ deviceId: String = "", keepLandscape: Bool = true) {
+        self.deviceId = deviceId
+        self.impl = OngoingCallThreadLocalContextVideoCapturer(deviceId: deviceId, keepLandscape: keepLandscape)
+    }
+    
+    public func video() -> Signal<OngoingGroupCallContext.VideoFrameData, NoError> {
+        return Signal { [weak self] subscriber in
+            let disposable = MetaDisposable()
+
+            guard let strongSelf = self else {
+                return disposable
+            }
+            let innerDisposable = strongSelf.impl.addVideoOutput({ videoFrameData in
+                subscriber.putNext(OngoingGroupCallContext.VideoFrameData(frameData: videoFrameData))
+            })
+            disposable.set(ActionDisposable {
+                innerDisposable.dispose()
+            })
+
+            return disposable
+        }
+    }
+       
+    
+    public func makeOutgoingVideoView(completion: @escaping (OngoingCallContextPresentationCallVideoView?) -> Void) {
+        self.impl.makeOutgoingVideoView(false, completion: { view, _ in
+            if let view = view {
+                completion(OngoingCallContextPresentationCallVideoView(
+                    view: view, setOnFirstFrameReceived: { [weak view] f in
+                        view?.setOnFirstFrameReceived(f)
+                    }, getOrientation: {
+                        return .rotation90
+                    },
+                    getAspect: { [weak view] in
+                        if let view = view {
+                            return view.aspect
+                        } else {
+                            return 0.0
+                        }
+                    },
+                    setOnOrientationUpdated: { [weak view] f in
+                        
+                    },
+                    setVideoContentMode: { [weak view] mode in
+                        view?.setVideoContentMode(mode)
+                    }, setOnIsMirroredUpdated: { [weak view] f in
+                        view?.setOnIsMirroredUpdated { value in
+                            f?(value)
+                        }
+                    }, setIsPaused: { [weak view] paused in
+                        view?.setIsPaused(paused)
+                    },
+                    renderToSize: { [weak view] size, animated in
+                        view?.render(to: size, animated: animated)
+                    }
+                ))
+            } else {
+                completion(nil)
+            }
+        })
+    }
+    
+    public func setIsVideoEnabled(_ value: Bool) {
+        self.impl.setIsVideoEnabled(value)
+    }
+    
+    public func setOnFatalError(_ onError: @escaping()->Void) {
+        self.impl.setOnFatalError({
+            DispatchQueue.main.async(execute: onError)
+        })
+    }
+    public func setOnPause(_ onPause: @escaping(Bool)->Void) {
+        self.impl.setOnPause({ pause in
+            DispatchQueue.main.async(execute: {
+                onPause(pause)
+            })
+        })
+    }
+
+    public func switchVideoInput(_ deviceId: String) {
+        self.impl.switchVideoInput(deviceId)
+    }
+}