feat: implement Linphone SDK integration with video call support
Complete rewrite from stub plugin to (probably) functional liblinphone integration featuring: - Core SDK bridge with registration, calls, and media controls - Platform views for remote and local video rendering - Event channels for registration and call state updates
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18 changed files with 901 additions and 52 deletions
312
ios/Classes/LinphoneBridge.swift
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312
ios/Classes/LinphoneBridge.swift
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import Foundation
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import UIKit
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import linphonesw
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import AVFoundation
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class LinphoneBridge {
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private var core: Core!
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private var isRegistered = false
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private var currentCall: Call?
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private let activity: UIViewController
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private let remoteViewAcquisitor: () -> UIView?
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private let localViewAcquisitor: () -> UIView?
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private let onRegistrationStateChanged: (Int) -> Void
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private let onCallStateChanged: (Int) -> Void
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private var registrationState: RegistrationState = .None {
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didSet {
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print("registrationState delegate: oldValue: \(oldValue), newValue: \(registrationState)")
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onRegistrationStateChanged(registrationState.rawValue)
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}
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}
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private var callState: Call.State = .Idle {
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didSet {
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print("callState delegate: oldValue: \(oldValue), newValue: \(callState)")
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onCallStateChanged(callState.rawValue)
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}
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}
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private static let TAG = "LinphoneBridge"
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init(
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activity: UIViewController,
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remoteViewAcquisitor: @escaping () -> UIView?,
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localViewAcquisitor: @escaping () -> UIView?,
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onRegistrationStateChanged: @escaping (Int) -> Void,
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onCallStateChanged: @escaping (Int) -> Void
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) {
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self.activity = activity
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self.remoteViewAcquisitor = remoteViewAcquisitor
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self.localViewAcquisitor = localViewAcquisitor
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self.onRegistrationStateChanged = onRegistrationStateChanged
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self.onCallStateChanged = onCallStateChanged
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}
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func checkPermissions() -> Bool {
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let audioStatus = AVCaptureDevice.authorizationStatus(for: .audio)
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let videoStatus = AVCaptureDevice.authorizationStatus(for: .video)
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if audioStatus != .authorized || videoStatus != .authorized {
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// Request permissions
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AVCaptureDevice.requestAccess(for: .audio) { _ in }
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AVCaptureDevice.requestAccess(for: .video) { _ in }
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return false
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}
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return true
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}
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func initializeLinphone() {
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do {
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let factory = Factory.Instance
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core = try factory.createCore(configPath: nil, factoryConfigPath: nil, systemContext: nil)
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// Add core listener
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core.addDelegate(delegate: self)
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// Enable video
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core.videoCaptureEnabled = true
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core.videoDisplayEnabled = true
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core.videoActivationPolicy?.automaticallyInitiate = true
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core.videoActivationPolicy?.automaticallyAccept = true
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// DSCP settings
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core.sipDscp = 26 // AF31
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core.audioDscp = 46 // EF
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core.videoDscp = 36 // AF42
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core.videoAdaptiveJittcompEnabled = true
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// Bandwidth settings
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core.uploadBandwidth = 512
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core.downloadBandwidth = 1500
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// Configure audio codecs
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let preferredAudio = ["opus", "pcmu", "pcma"]
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for pt in core.audioPayloadTypes {
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let mime = pt.mimeType.lowercased()
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let enabled = preferredAudio.contains(mime)
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let ok = pt.enable(enabled: enabled) == 0
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print("\(LinphoneBridge.TAG) Change state of \(mime) to \(enabled) = \(ok)")
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}
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// Configure video codecs
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let preferredVideo = ["h264", "vp8"]
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for pt in core.videoPayloadTypes {
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let mime = pt.mimeType.lowercased()
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let enabled = preferredVideo.contains(mime)
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let ok = pt.enable(enabled: enabled) == 0
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print("\(LinphoneBridge.TAG) Change state of \(mime) to \(enabled) = \(ok)")
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}
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// Set bitrates
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core.getPayloadType(type: "opus", rate: -1, channels: 0)?.normalBitrate = 32
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core.getPayloadType(type: "h264", rate: -1, channels: 0)?.normalBitrate = 600
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core.getPayloadType(type: "vp8", rate: -1, channels: 0)?.normalBitrate = 600
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// Video settings
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let preferredVidDef = try factory.createVideoDefinition(width: 720, height: 1280)
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core.preferredVideoDefinition = preferredVidDef
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core.preferredFramerate = 30
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try core.start()
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} catch {
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print("Error initializing Linphone: \(error)")
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}
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}
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func register(username: String, password: String, serverIp: String, serverPort: Int) {
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do {
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let factory = Factory.Instance
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let authInfo = try factory.createAuthInfo(
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username: username,
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userid: nil,
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passwd: password,
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ha1: nil,
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realm: nil,
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domain: serverIp
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)
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core.addAuthInfo(info: authInfo)
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let identity = try factory.createAddress(addr: "sip:\(username)@\(serverIp)")
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let server = try factory.createAddress(addr: "sip:\(serverIp):\(serverPort)")
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let accountParams = try core.createAccountParams()
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try accountParams.setIdentityaddress(newValue: identity)
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try accountParams.setServeraddress(newValue: server)
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accountParams.registerEnabled = true
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let account = try core.createAccount(params: accountParams)
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try core.addAccount(account: account)
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core.defaultAccount = account
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} catch {
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print("Error registering: \(error)")
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}
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}
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func unregister() {
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core.clearAccounts()
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core.clearAllAuthInfo()
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}
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func makeCall(callTo: String, isVideoEnabled: Bool) throws {
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guard isRegistered else {
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throw NSError(domain: "LinphoneBridge", code: 1, userInfo: [NSLocalizedDescriptionKey: "Not registered"])
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}
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do {
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let factory = Factory.Instance
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guard let remoteAddress = try? factory.createAddress(addr: callTo) else {
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throw NSError(domain: "LinphoneBridge", code: 2, userInfo: [NSLocalizedDescriptionKey: "Failed to create remote address"])
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}
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guard let callParams = try? core.createCallParams(call: nil) else {
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throw NSError(domain: "LinphoneBridge", code: 3, userInfo: [NSLocalizedDescriptionKey: "Failed to create call params"])
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}
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callParams.videoEnabled = isVideoEnabled
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callParams.videoDirection = isVideoEnabled ? .SendRecv : .Inactive
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currentCall = try core.inviteAddressWithParams(addr: remoteAddress, params: callParams)
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} catch {
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throw error
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}
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}
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func answerCall() -> Bool {
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guard let call = currentCall else {
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return false
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}
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do {
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let callParams = try core.createCallParams(call: call)
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callParams.videoEnabled = true
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callParams.videoDirection = .SendRecv
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try call.acceptWithParams(params: callParams)
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return true
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} catch {
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print("Error answering call: \(error)")
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return false
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}
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}
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func hangupCall() -> Bool {
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do {
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try currentCall?.terminate()
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return true
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} catch {
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print("Error hanging up: \(error)")
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return false
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}
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}
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func toggleVideo() -> Bool {
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guard let call = currentCall else {
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return false
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}
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do {
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let params = try core.createCallParams(call: call)
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params.videoEnabled = !(call.currentParams?.videoEnabled ?? false)
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try call.update(params: params)
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return call.currentParams?.videoEnabled ?? false
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} catch {
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print("Error toggling video: \(error)")
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return false
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}
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}
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func toggleMicrophone() -> Bool {
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core.micEnabled = !core.micEnabled
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return core.micEnabled
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}
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func stop() {
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core.stop()
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}
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func inCall() -> Bool {
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return currentCall != nil
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}
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enum CallType {
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case audio
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case video
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case unknown
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}
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func callType() -> CallType {
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guard let params = currentCall?.currentParams else {
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return .unknown
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}
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if params.videoEnabled {
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return .video
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} else {
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return .audio
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}
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}
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}
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// MARK: - CoreDelegate
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extension LinphoneBridge: CoreDelegate {
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func onAccountRegistrationStateChanged(core: Core, account: Account, state: RegistrationState, message: String) {
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registrationState = state
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switch state {
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case .Ok:
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isRegistered = true
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case .Failed, .None, .Progress:
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isRegistered = false
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default:
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break
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}
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}
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func onCallStateChanged(core: Core, call: Call, state: Call.State, message: String) {
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callState = state
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switch state {
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case .IncomingReceived:
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currentCall = call
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print("onCallStateChanged: INCOMING_RECEIVED \(call)")
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case .Connected:
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print("onCallStateChanged: CONNECTED \(call)")
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if let remoteView = remoteViewAcquisitor() {
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call.nativeVideoWindowId = UnsafeMutableRawPointer(Unmanaged.passUnretained(remoteView).toOpaque())
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} else {
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print("onCallStateChanged: CONNECTED remoteViewAcquisitor found nothing")
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}
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if let localView = localViewAcquisitor() {
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core.nativePreviewWindowId = UnsafeMutableRawPointer(Unmanaged.passUnretained(localView).toOpaque())
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} else {
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print("onCallStateChanged: CONNECTED localViewAcquisitor found nothing")
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}
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case .StreamsRunning:
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print("onCallStateChanged: STREAMS_RUNNING \(call)")
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if let remoteView = remoteViewAcquisitor() {
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call.nativeVideoWindowId = UnsafeMutableRawPointer(Unmanaged.passUnretained(remoteView).toOpaque())
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} else {
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print("onCallStateChanged: STREAMS_RUNNING remoteViewAcquisitor found nothing")
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}
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if let localView = localViewAcquisitor() {
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core.nativePreviewWindowId = UnsafeMutableRawPointer(Unmanaged.passUnretained(localView).toOpaque())
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} else {
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print("onCallStateChanged: STREAMS_RUNNING localViewAcquisitor found nothing")
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}
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case .End, .Error, .Released:
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currentCall = nil
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default:
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break
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}
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}
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}
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