冰候选委托方法调用时出现崩溃

Please help what is the issue.???

webrtc库调用一些内部方法并获取excess_bad . 然后坠毁了

如果需要，请提出更多信息 .

//code

let iceServer = RTCICEServer(uri:URL(string: resturi), username: “***”, password: “***”)

// Enable SSL globally for WebRTC in our app
let pcFactory:RTCPeerConnectionFactory = RTCPeerConnectionFactory()

let rtcConfiguration = RTCConfiguration()
rtcConfiguration.iceServers = [iceServer!]

let pair1 = RTCPair(key: "OfferToReceiveAudio", value: "true")
let pair2 = RTCPair(key: "OfferToReceiveVideo", value: "false")

let pair3 = RTCPair(key: "DtlsSrtpKeyAgreement", value: "true")

self.mediaConstraints = RTCMediaConstraints(mandatoryConstraints: [pair1!,pair2!], optionalConstraints:[pair3!])

 // Create the peer connection using the ICE server list and the current class as the delegate

    let localStream:RTCMediaStream = pcFactory.mediaStream(withLabel: “12345”)
    let audioTrack:RTCAudioTrack = pcFactory.audioTrack(withID: “123456”)
    audioTrack.delegate = self

    let status = localStream.addAudioTrack(audioTrack)

 self.peerConnection = pcFactory.peerConnection(with: rtcConfiguration, constraints: self.mediaConstraints!, delegate: self)

  let pstatus = self.peerConnection!.add(localStream)

  print(status)
  print(pstatus)

//Let’s look at how the offer is created, which initiates the call.
 self.peerConnection!.createOffer(with: self, constraints: self.mediaConstraints)

I am getting sip here.

public func peerConnection(_ peerConnection: RTCPeerConnection!, didCreateSessionDescription sdp: RTCSessionDescription!, error: Error!)

getting crash when this delegate called.

func peerConnection(_ peerConnection: RTCPeerConnection!, gotICECandidate candidate: RTCICECandidate!)

Crash Report

异常类型：EXC_BAD_ACCESS（SIGSEGV）异常子类型：KERN_INVALID_ADDRESS位于0x5000000000000038终止信号：分段错误：11终止原因：命名空间SIGNAL，代码0xb终止进程：exc处理程序[0]由线程触发：9已过滤的syslog：未找到线程0名称：调度队列：com.apple.main线程线程0：0 libsystem_kernel.dylib 0x000000018f58816c mach_msg_trap 8 1周libsystem_kernel.dylib 0x000000018f587fdc mach_msg 72 2的CoreFoundation 0x0000000190585cec __CFRunLoopServiceMachPort 192 3的CoreFoundation 0x0000000190583908 __CFRunLoopRun 1132 4的CoreFoundation 0x00000001904b2048 CFRunLoopRunSpecific 444 5个GraphicsServices 0x0000000191f35198 GSEventRunModal 180 6的UIKit 0x000000019648b818 - [UIApplication _run] 684 7 UIKit 0x0000000196486550 UIApplicationMain 208 8 Shukran 0x0000000100080a1c 0x10007c000 18972 9 libdyld.dylib 0x000000018f4945b8 start 4线程1名称：com.apple.uikit.eventfetch-thread线程1：0 libsystem_kernel.dylib 0x000000018f58816c mach_msg_trap 8 1 libsystem_kernel.dylib 0x000000018f587fdc mach_msg 72 2的CoreFoundation 0x0000000190585cec CFRunLoopServiceMachPort 192 3的CoreFoundation 0x0000000190583908 __CFRunLoopRun 1132 4的CoreFoundation 0x00000001904b2048 CFRunLoopRunSpecific 444 5基金会0x0000000190fc0b1c - [NSRunLoop（NSRunLoop）runMode：beforeDate：] 304 6基金会0x0000000190fe160c - [NSRunLoop（NSRunLoop）runUntilDate ：] 96 7的UIKit 0x0000000196e00e6c - [UIEventFetcher threadMain] 136 8基金会0x00000001910be50c __NSThread__start 1024 9 libsystem_pthread.dylib 0x000000018f66b860 _pthread_body 240 10 libsystem_pthread.dylib 0x000000018f66b770 _pthread_body 0 11 libsystem_pthread.dylib 0x000000018f668dbc thread_start 4线程2名：AVAudioSession通知线程线程2：0 libsystem_kernel .dylib 0x000000018f58816c mach_msg_trap 8 1 libsystem_kernel.dylib 0x000000018f587fdc mach_msg 72 2 CoreFoundation 0x0000000190585cec __CFRunLoopServiceMachPort 192 3 Core基础0x0000000190583908 __CFRunLoopRun 1132 4的CoreFoundation 0x00000001904b2048 CFRunLoopRunSpecific 444 5 AVFAudio 0x00000001a9baafe8 GenericRunLoopThread ::条目（无效*）164 6 AVFAudio 0x00000001a9bd0f14 CAPThread ::条目（CAPThread *）84 7 libsystem_pthread.dylib 0x000000018f66b860 _pthread_body 240 8 libsystem_pthread.dylib 0x000000018f66b770 _pthread_body 0 9 libsystem_pthread . dylib 0x000000018f668dbc thread_start 4线程3名：com.apple.NSURLConnectionLoader线程3：0 libsystem_kernel.dylib 0x000000018f58816c mach_msg_trap 8 1 libsystem_kernel.dylib 0x000000018f587fdc mach_msg 72 2的CoreFoundation 0x0000000190585cec CFRunLoopServiceMachPort 192 3的CoreFoundation 0x0000000190583908 __CFRunLoopRun 1132 4的CoreFoundation 0x00000001904b2048 CFRunLoopRunSpecific 444 5 CFNetwork的0x0000000190c9fcec [NSURLConnection的（Loader）_resourceLoadLoop：] 336 6基础0x00000001910be50c __NSThread__start 1024 7 libsystem_pthread.dylib 0x000000018f66b860 _pthread_b ODY 240 8 libsystem_pthread.dylib 0x000000018f66b770 _pthread_body 0 9 libsystem_pthread.dylib 0x000000018f668dbc thread_start 4线程4：0 libsystem_pthread.dylib 0x000000018f668db0 start_wqthread 0螺纹5：0 libsystem_kernel.dylib 0x000000018f5a6a88 __workq_kernreturn 8 1 libsystem_pthread.dylib 0x000000018f669188 _pthread_wqthread 968 2 libsystem_pthread.dylib 0x000000018f668db4 start_wqthread 4螺纹6：0 libsystem_pthread.dylib 0x000000018f668db0 start_wqthread 0螺纹7：0 libsystem_kernel.dylib 0x000000018f5a5e1c __psynch_cvwait 8 1 libsystem_pthread.dylib 0x000000018f66a9d0 _pthread_cond_wait 640 2 Shukran 0x000000010030009c 0x10007c000 2637980 3 libsystem_pthread.dylib 0x000000018f66b860 _pthread_body 240 4 libsystem_pthread.dylib 0x000000018f66b770 _pthread_body 0 5 libsystem_pthread.dylib 0x000000018f668dbc thread_start 4线程8：0 libsystem_kernel.dylib 0x000000018f5a623c __select 8 1 Shukran 0x00000001003004d0 0x10007c000 2639056 2 li bsystem_pthread.dylib 0x000000018f66b860 _pthread_body 240 3 libsystem_pthread.dylib 0x000000018f66b770 _pthread_body 0 4 libsystem_pthread.dylib 0x000000018f668dbc thread_start 4线程9名称：VoiceProcessThread螺纹9毁损：0 Shukran 0x00000001001956ac 0x10007c000 1152684 1 Shukran 0x000000010019569c 0x10007c000 1152668 2 Shukran 0x0000000100168688 0x10007c000 968328 3 Shukran 0x0000000100191020 0x10007c000 1134624 4 Shukran 0x000000010033b1bc 0x10007c000 2879932 5 Shukran 0x00000001002d906c 0x10007c000 2478188 6 Shukran 0x00000001002d8670 0x10007c000 2475632 7 Shukran 0x00000001002ca330 0x10007c000 2417456 8 Shukran 0x00000001004293f0 0x10007c000 3855344 9 Shukran 0x00000001002fb010 0x10007c000 2617360 10 Shukran 0x00000001002faf94 0x10007c000 2617236 11 libsystem_pthread.dylib 0x000000018f66b860 _pthread_body 240 12 libsystem_pthread.dylib 0x000000018f66b770 _pthread_body 0 13 libsystem_pthread.dylib 0x000000018f668dbc thread_start 4螺纹10名：PacerThread螺纹10：0 libsystem_kernel.dylib 0x000000018f5a5e1c __psynch_cvwait 8 1 libsystem_pthread.dylib 0x000000018f66a9d0 _pthread_cond_wait 640 2 Shukran 0x000000010028548c 0x10007 C000 2135180 3 Shukran 0x00000001002f7544 0x10007c000 2602308 4 Shukran 0x00000001004294f0 0x10007c000 3855600 5 Shukran 0x00000001002fb010 0x10007c000 2617360 6 Shukran 0x00000001002faf94 0x10007c000 2617236 7 libsystem_pthread.dylib 0x000000018f66b860 _pthread_body 240 8 libsystem_pthread.dylib 0x000000018f66b770 _pthread_body 0 9 libsystem_pthread.dylib 0x000000018f668dbc thread_start 4螺纹11名：ModuleProcessThread螺纹11 ：0 libsystem_kernel.dylib 0x000000018f5a5e1c __psynch_cvwait 8 1 libsystem_pthread.dylib 0x000000018f66a9d0 _pthread_cond_wait 640 2 Shukran 0x000000010028548c 0x10007c000 2135180 3 Shukran 0x00000001002f7544 0x10007c000 2602308 4 Shukran 0x00000001004294f0 0x10007c000 3855600 5 Shukran 0x00000001002fb010 0x10007c000 2617360 6 Shukran 0x00000001002faf94 0x10007c000 2617236 7 libsystem_pthread.dylib 0x000000018f66b860 _pthread_body 240 8 libsystem_pthread . dylib 0x000000018f66b770 _pthread_body 0 9 libsystem_pthread.dylib 0 x000000018f668dbc thread_start 4线程9与ARM线程状态（64位）崩溃：x0：0x000000010303c100 x1：0x0000000000000000 x2：0x0000000000000000 x3：0x00000001024694e8 x4：0x0000000000000000 x5：0x0000000000000010 x6：0x0000000000000002 x7：0x000000016e54a45c x8：0x5000000000000000 x9：0x0000000000000000 x10：0x000000016e54b818 x11 ：0x0000000000000000 X12：0x03e0fe0003e0fe00 X13：0x000000018f66b770 X14：0x000000018f668dbc X15：0x0000000000000010 X16：0x000000018f669ab8 X17：0x0000000000000001 X18：0x0000000000000000 X19：0x0000000000000004 X20：0x0000000104082e00 X21：0x00000001702a42c0 X22：0x000000016e54a278 X23：0x00000001702a42e8 X24：0x000000016e54a240 X25：0x00000001702a42c8 X26：0x00000001702a42e0 X27：0xd96031967698005a x28：0x0000000000000000 fp：0x000000016e54a1f0 lr：0x000000010019569c sp：0x000000016e549b10 pc：0x00000001001956ac cpsr：0x60000000