android/src/main/kotlin/xyz/nuark/liblinphone_flutter/LinphoneBridge.kt

@@ -223,7 +223,7 @@ class LinphoneBridge(
         core.uploadBandwidth = 512
         core.downloadBandwidth = 1500
 
-        val preferredAudio = listOf("g729") // in order of preference
+        val preferredAudio = listOf("g729"/*, "opus", "speex", "pcmu", "pcma"*/) // in order of preference
         val preferredVideo = listOf("h264", "vp8")
 
         core.audioPayloadTypes.forEach { pt: PayloadType ->

ios/Classes/LiblinphoneFlutterPlugin.swift

@@ -80,12 +80,18 @@ public class LiblinphoneFlutterPlugin: NSObject, FlutterPlugin {
     public func handle(_ call: FlutterMethodCall, result: @escaping FlutterResult) {
         switch call.method {
         case "checkPermissions":
-            result(linphoneBridge.checkPermissions())
+            let hasPermissions = linphoneBridge.checkPermissions()
+            result(hasPermissions)
             
         case "initialize":
+            do {                
                 linphoneBridge = LinphoneBridge(
-                remoteViewAcquisitor: { [weak self] in self?.acquireRemoteView() },
+                    remoteViewAcquisitor: { [weak self] in
-                localViewAcquisitor: { [weak self] in self?.acquireLocalView() },
+                        return self?.acquireRemoteView()
+                    },
+                    localViewAcquisitor: { [weak self] in
+                        return self?.acquireLocalView()
+                    },
                     onRegistrationStateChanged: { [weak self] state in
                         self?.registrationEventsChannel?(state)
                     },
@@ -95,6 +101,14 @@ public class LiblinphoneFlutterPlugin: NSObject, FlutterPlugin {
                 )
                 linphoneBridge.initializeLinphone()
                 result(true)
+            } catch {
+                print("[\(LiblinphoneFlutterPlugin.TAG)] initialize error: \(error.localizedDescription)")
+                result(FlutterError(
+                    code: "ERROR",
+                    message: error.localizedDescription,
+                    details: nil
+                ))
+            }
             
         case "register":
             guard let args = call.arguments as? [String: Any],
@@ -102,11 +116,30 @@ public class LiblinphoneFlutterPlugin: NSObject, FlutterPlugin {
                   let password = args["password"] as? String,
                   let serverIp = args["serverIp"] as? String,
                   let serverPort = args["serverPort"] as? Int else {
-                result(FlutterError(code: "INVALID_ARGUMENTS", message: "Missing required arguments", details: nil))
+                result(FlutterError(
+                    code: "INVALID_ARGUMENTS",
+                    message: "Missing required arguments",
+                    details: nil
+                ))
                 return
             }
-            linphoneBridge.register(username: username, password: password, serverIp: serverIp, serverPort: serverPort)
+            
+            do {
+                linphoneBridge.register(
+                    username: username,
+                    password: password,
+                    serverIp: serverIp,
+                    serverPort: serverPort
+                )
                 result(true)
+            } catch {
+                print("[\(LiblinphoneFlutterPlugin.TAG)] register error: \(error.localizedDescription)")
+                result(FlutterError(
+                    code: "ERROR",
+                    message: error.localizedDescription,
+                    details: nil
+                ))
+            }
             
         case "unregister":
             linphoneBridge.unregister()
@@ -116,37 +149,58 @@ public class LiblinphoneFlutterPlugin: NSObject, FlutterPlugin {
             guard let args = call.arguments as? [String: Any],
                   let callTo = args["callTo"] as? String,
                   let isVideoEnabled = args["isVideoEnabled"] as? Bool else {
-                result(FlutterError(code: "INVALID_ARGUMENTS", message: "Missing required arguments", details: nil))
+                result(FlutterError(
+                    code: "INVALID_ARGUMENTS",
+                    message: "Missing required arguments",
+                    details: nil
+                ))
                 return
             }
+            
             do {
                 try linphoneBridge.makeCall(callTo: callTo, isVideoEnabled: isVideoEnabled)
                 result(true)
             } catch {
-                result(FlutterError(code: "ERROR", message: error.localizedDescription, details: nil))
+                print("[\(LiblinphoneFlutterPlugin.TAG)] makeCall error: \(error.localizedDescription)")
+                result(FlutterError(
+                    code: "ERROR",
+                    message: error.localizedDescription,
+                    details: nil
+                ))
             }
             
         case "answerCall":
-            result(linphoneBridge.answerCall())
+            let success = linphoneBridge.answerCall()
+            result(success)
             
         case "hangupCall":
-            result(linphoneBridge.hangupCall())
+            let success = linphoneBridge.hangupCall()
+            result(success)
             
         case "inCall":
-            result(linphoneBridge.inCall())
+            let inCall = linphoneBridge.inCall()
+            result(inCall)
             
         case "callType":
-            switch linphoneBridge.callType() {
+            let callType = linphoneBridge.callType()
-            case .audio:   result(0)
+            let ordinal: Int
-            case .video:   result(1)
+            switch callType {
-            case .unknown: result(2)
+            case .audio:
+                ordinal = 0
+            case .video:
+                ordinal = 1
+            case .unknown:
+                ordinal = 2
             }
+            result(ordinal)
             
         case "toggleVideo":
-            result(linphoneBridge.toggleVideo())
+            let enabled = linphoneBridge.toggleVideo()
+            result(enabled)
             
         case "toggleMicrophone":
-            result(linphoneBridge.toggleMicrophone())
+            let enabled = linphoneBridge.toggleMicrophone()
+            result(enabled)
             
         case "stop":
             linphoneBridge.stop()
@@ -159,71 +213,54 @@ public class LiblinphoneFlutterPlugin: NSObject, FlutterPlugin {
         case "sendDtmf":
             guard let args = call.arguments as? [String: Any],
                   let tone = args["tone"] as? String else {
-                result(FlutterError(code: "INVALID_ARGUMENTS", message: "Missing required arguments", details: nil))
+                result(FlutterError(
+                    code: "INVALID_ARGUMENTS",
+                    message: "Missing required arguments",
+                    details: nil
+                ))
                 return
             }
-            result(linphoneBridge.sendDtmf(tone: tone))
+            
+            let success = linphoneBridge.sendDtmf(tone: tone)
+            result(success)
 
         case "stopCallService":
-            // Android-only; no-op on iOS
             result(true)
 
         case "setMicGain":
             guard let args = call.arguments as? [String: Any],
-                  let levelStr = args["level"] as? String,
+                  let level = args["level"] as? String else {
-                  let level = Float(levelStr) else {
+                result(FlutterError(
-                result(FlutterError(code: "INVALID_ARGUMENTS", message: "Missing or invalid 'level'", details: nil))
+                    code: "INVALID_ARGUMENTS",
+                    message: "Missing required arguments",
+                    details: nil
+                ))
                 return
             }
+            
             linphoneBridge.setMicGain(level: level)
-            result(true)
+            result(success)
 
         case "getMicGain":
-            result(String(linphoneBridge.getMicGain()))
+            result(linphoneBridge.getMicGain())
 
         case "setPlaybackGain":
             guard let args = call.arguments as? [String: Any],
-                  let levelStr = args["level"] as? String,
+                  let level = args["level"] as? String else {
-                  let level = Float(levelStr) else {
+                result(FlutterError(
-                result(FlutterError(code: "INVALID_ARGUMENTS", message: "Missing or invalid 'level'", details: nil))
+                    code: "INVALID_ARGUMENTS",
+                    message: "Missing required arguments",
+                    details: nil
+                ))
                 return
             }
+            
             linphoneBridge.setPlaybackGain(level: level)
-            result(true)
+            result(success)
 
         case "getPlaybackGain":
             result(linphoneBridge.getPlaybackGain())
 
-        case "setDscp":
-            guard let args = call.arguments as? [String: Any] else {
-                result(FlutterError(code: "INVALID_ARGUMENTS", message: "Missing arguments", details: nil))
-                return
-            }
-            // All three are optional — only present keys are applied
-            let sipDscp = args["sipDscp"] as? Int
-            let audioDscp = args["audioDscp"] as? Int
-            let videoDscp = args["videoDscp"] as? Int
-            linphoneBridge.setDscp(sipDscp: sipDscp, audioDscp: audioDscp, videoDscp: videoDscp)
-            result(true)
-
-        case "getDscp":
-            result(linphoneBridge.getDscp())
-
-        case "getCurrentCallStats":
-            result(linphoneBridge.getCurrentCallStats())
-
-        case "getAvailableAudioCodecs":
-            result(linphoneBridge.getAvailableAudioCodecs())
-
-        case "setAudioCodec":
-            guard let args = call.arguments as? [String: Any],
-                  let mime = args["mime"] as? String,
-                  let clockRate = args["clockRate"] as? Int else {
-                result(FlutterError(code: "INVALID_ARGUMENTS", message: "Missing required arguments", details: nil))
-                return
-            }
-            result(linphoneBridge.setAudioCodec(mime: mime, clockRate: clockRate))
-
         default:
             result(FlutterMethodNotImplemented)
         }

ios/Classes/LinphoneBridge.swift

@@ -45,6 +45,7 @@ class LinphoneBridge {
         let videoStatus = AVCaptureDevice.authorizationStatus(for: .video)
         
         if audioStatus != .authorized || videoStatus != .authorized {
+            // Request permissions
             AVCaptureDevice.requestAccess(for: .audio) { _ in }
             AVCaptureDevice.requestAccess(for: .video) { _ in }
             return false
@@ -57,10 +58,13 @@ class LinphoneBridge {
         do {
             let factory = Factory.Instance
             core = try factory.createCore(configPath: nil, factoryConfigPath: nil, systemContext: nil)
-            core.addDelegate(delegate: self)
           
             core.ipv6Enabled = false
-            core.agcEnabled = false
+            core.config?.setInt(section: "net", key: "ipv6", value: 0) 
+            try? core.config?.sync()
+
+            // Add core listener
+            core.addDelegate(delegate: self)
             
             // Enable video
             core.videoCaptureEnabled = true
@@ -80,7 +84,7 @@ class LinphoneBridge {
             core.downloadBandwidth = 1500
             
             // Configure audio codecs
-            let preferredAudio = ["g729"]
+            let preferredAudio = ["opus", "pcmu", "pcma"]
             for pt in core.audioPayloadTypes {
                 let mime = pt.mimeType.lowercased()
                 let enabled = preferredAudio.contains(mime)
@@ -98,9 +102,9 @@ class LinphoneBridge {
             }
             
             // Set bitrates
-            // core.getPayloadType(type: "opus", rate: -1, channels: 0)?.normalBitrate = 32
+            core.getPayloadType(type: "opus", rate: -1, channels: 0)?.normalBitrate = 32
-            // core.getPayloadType(type: "h264", rate: -1, channels: 0)?.normalBitrate = 600
+            core.getPayloadType(type: "h264", rate: -1, channels: 0)?.normalBitrate = 600
-            // core.getPayloadType(type: "vp8", rate: -1, channels: 0)?.normalBitrate = 600
+            core.getPayloadType(type: "vp8", rate: -1, channels: 0)?.normalBitrate = 600
             
             // Video settings
             let preferredVidDef = try factory.createVideoDefinition(width: 720, height: 1280)
@@ -152,6 +156,7 @@ class LinphoneBridge {
             throw NSError(domain: "LinphoneBridge", code: 1, userInfo: [NSLocalizedDescriptionKey: "Not registered"])
         }
         
+        do {
             let factory = Factory.Instance
             guard let remoteAddress = try? factory.createAddress(addr: callTo) else {
                 throw NSError(domain: "LinphoneBridge", code: 2, userInfo: [NSLocalizedDescriptionKey: "Failed to create remote address"])
@@ -165,10 +170,15 @@ class LinphoneBridge {
             callParams.videoDirection = isVideoEnabled ? .SendRecv : .Inactive
             
             currentCall = try core.inviteAddressWithParams(addr: remoteAddress, params: callParams)
+        } catch {
+            throw error
+        }
     }
     
     func answerCall() -> Bool {
-        guard let call = currentCall else { return false }
+        guard let call = currentCall else {
+            return false
+        }
         
         do {
             let callParams = try core.createCallParams(call: call)
@@ -193,7 +203,9 @@ class LinphoneBridge {
     }
     
     func toggleVideo() -> Bool {
-        guard let call = currentCall else { return false }
+        guard let call = currentCall else {
+            return false
+        }
         
         do {
             let params = try core.createCallParams(call: call)
@@ -226,12 +238,25 @@ class LinphoneBridge {
     }
     
     func callType() -> CallType {
-        guard let params = currentCall?.currentParams else { return .unknown }
+        guard let params = currentCall?.currentParams else {
-        return params.videoEnabled ? .video : .audio
+            return .unknown
+        }
+
+        if params.videoEnabled {
+            return .video
+        } else {
+            return .audio
+        }
     }
 
     func sendDtmf(tone: String) -> Bool {
-        guard let call = currentCall, !tone.isEmpty else { return false }
+        guard let call = currentCall else {
+            return false
+        }
+        
+        guard !tone.isEmpty else {
+            return false
+        }
         
         let dtmfChar = tone.first!
         do {
@@ -248,8 +273,6 @@ class LinphoneBridge {
         onCallStateChanged(callState.rawValue)
     }
 
-    // MARK: - Gain
-
     func setMicGain(level: Float) {
         core.micGainDb = level
     }
@@ -265,111 +288,6 @@ class LinphoneBridge {
     func getPlaybackGain() -> Float {
         return core.playbackGainDb
     }
-
-    // MARK: - DSCP
-
-    func setDscp(sipDscp: Int?, audioDscp: Int?, videoDscp: Int?) {
-        if let sip = sipDscp { core.sipDscp = sip }
-        if let audio = audioDscp { core.audioDscp = audio }
-        if let video = videoDscp { core.videoDscp = video }
-    }
-
-    func getDscp() -> [String: Any] {
-        return [
-            "sipDscp": core.sipDscp,
-            "audioDscp": core.audioDscp,
-            "videoDscp": core.videoDscp,
-        ]
-    }
-
-    // MARK: - Call Stats
-
-    func getCurrentCallStats() -> [String: Any]? {
-        guard let call = core.currentCall,
-              let stats = call.getStats(type: .Audio) else {
-            return nil
-        }
-
-        return [
-            "recordTs": Int64(Date().timeIntervalSince1970 * 1000),
-            "remoteAddress": call.remoteAddress?.asString() ?? "",
-            "currentQuality": call.currentQuality,
-            "downloadBandwidth": stats.downloadBandwidth,
-            "estimatedDownloadBandwidth": stats.estimatedDownloadBandwidth,
-            "fecCumulativeLostPacketsNumber": stats.fecCumulativeLostPacketsNumber,
-            "fecDownloadBandwidth": stats.fecDownloadBandwidth,
-            "fecRepairedPacketsNumber": stats.fecRepairedPacketsNumber,
-            "fecUploadBandwidth": stats.fecUploadBandwidth,
-            "iceState": stats.iceState.rawValue,
-            "jitterBufferSizeMs": stats.jitterBufferSizeMs,
-            "latePacketsCumulativeNumber": stats.latePacketsCumulativeNumber,
-            "localLateRate": stats.localLateRate,
-            "localLossRate": stats.localLossRate,
-            "receiverInterarrivalJitter": stats.receiverInterarrivalJitter,
-            "receiverLossRate": stats.receiverLossRate,
-            "roundTripDelay": stats.roundTripDelay,
-            "rtcpDownloadBandwidth": stats.rtcpDownloadBandwidth,
-            "rtcpUploadBandwidth": stats.rtcpUploadBandwidth,
-            "rtpCumPacketLoss": stats.rtpCumPacketLoss,
-            "rtpDiscarded": stats.rtpDiscarded,
-            "rtpHwRecv": stats.rtpHwRecv,
-            "rtpPacketRecv": stats.rtpPacketRecv,
-            "rtpPacketSent": stats.rtpPacketSent,
-            "rtpRecv": stats.rtpRecv,
-            "rtpSent": stats.rtpSent,
-            "senderInterarrivalJitter": stats.senderInterarrivalJitter,
-            "senderLossRate": stats.senderLossRate,
-            "srtpSource": stats.srtpSource.rawValue,
-            "srtpSuite": stats.srtpSuite.rawValue,
-            "uploadBandwidth": stats.uploadBandwidth,
-            "upnpState": stats.upnpState.rawValue,
-            "zrtpAuthTagAlgo": stats.zrtpAuthTagAlgo,
-            "zrtpCipherAlgo": stats.zrtpCipherAlgo,
-            "zrtpHashAlgo": stats.zrtpHashAlgo,
-            "zrtpKeyAgreementAlgo": stats.zrtpKeyAgreementAlgo,
-            "zrtpSasAlgo": stats.zrtpSasAlgo,
-            "isZrtpKeyAgreementAlgoPostQuantum": stats.isZrtpKeyAgreementAlgoPostQuantum,
-        ]
-    }
-
-    // MARK: - Codec management
-
-    func getAvailableAudioCodecs() -> [[String: Any]] {
-        return core.audioPayloadTypes.map { pt in
-            [
-                "mimeType": pt.mimeType.lowercased(),
-                "clockRate": pt.clockRate,
-                "enabled": pt.enabled(),
-            ]
-        }
-    }
-
-    /// Enables the codec matching (mime, clockRate) and disables all others.
-    /// Returns true if the target codec was found and enabled successfully.
-    func setAudioCodec(mime: String, clockRate: Int) -> Bool {
-        var found = false
-        var ok = false
-
-        for pt in core.audioPayloadTypes {
-            let ptMime = pt.mimeType.lowercased()
-            let ptClockRate = pt.clockRate
-            let enable = ptMime == mime && ptClockRate == clockRate
-            if enable {
-                ok = pt.enable(enabled: true) == 0
-                found = true
-                print("\(LinphoneBridge.TAG) setAudioCodec: preferred codec found (\(ptMime) @ \(ptClockRate)) switch: \(ok)")
-            } else {
-                let switchedOk = pt.enable(enabled: false) == 0
-                print("\(LinphoneBridge.TAG) setAudioCodec: \(ptMime) @ \(ptClockRate) switch: \(switchedOk)")
-            }
-        }
-
-        if !found {
-            print("\(LinphoneBridge.TAG) setAudioCodec: could not find codec with params \(mime) @ \(clockRate)")
-        }
-
-        return ok
-    }
 }
 
 // MARK: - CoreDelegate