WebRTC（iOS）：本地视频未在远程端获得流

Question

我正在尝试制作一个使用 WebRTC 进行音频、视频通话的应用。

远程视频和音频在我的应用程序中正常工作，但我的本地流没有出现在客户端。

这是我为了添加视频轨道而写的

let videoSource = self.rtcPeerFactory.videoSource()
let videoCapturer = RTCCameraVideoCapturer(delegate: videoSource)

guard let frontCamera = (RTCCameraVideoCapturer.captureDevices().first { [=11=].position == .front }),

    // choose highest res
    let format = (RTCCameraVideoCapturer.supportedFormats(for: frontCamera).sorted { (f1, f2) -> Bool in
        let width1 = CMVideoFormatDescriptionGetDimensions(f1.formatDescription).width
        let width2 = CMVideoFormatDescriptionGetDimensions(f2.formatDescription).width
        return width1 < width2
    }).last,

    // choose highest fps
    let fps = (format.videoSupportedFrameRateRanges.sorted { return [=11=].maxFrameRate < .maxFrameRate }.last) else {
        print(.error, "Error in createLocalVideoTrack")
        return nil
}

videoCapturer.startCapture(with: frontCamera,
                           format: format,
                           fps: Int(fps.maxFrameRate))


self.callManagerDelegate?.didAddLocalVideoTrack(videoTrack: videoCapturer)
let videoTrack = self.rtcPeerFactory.videoTrack(with: videoSource, trackId:  K.CONSTANT.VIDEO_TRACK_ID)

这是添加音轨

let constraints: RTCMediaConstraints = RTCMediaConstraints.init(mandatoryConstraints: [:], optionalConstraints: nil)

let audioSource: RTCAudioSource = self.rtcPeerFactory.audioSource(with: constraints)
let audioTrack: RTCAudioTrack = self.rtcPeerFactory.audioTrack(with: audioSource, trackId: K.CONSTANT.AUDIO_TRACK_ID)

附上我的完整 webRTC 日志 here。

我收到一些日志（我认为这是错误的）

(thread.cc:303): Waiting for the thread to join, but blocking calls have been disallowed
(basic_port_allocator.cc:1035): Port[31aba00:0:1:0:relay:Net[ipsec4:2405:204:8888:x:x:x:x:x/64:VPN/Unknown:id=2]]: Port encountered error while gathering candidates.

...

(basic_port_allocator.cc:1017): Port[38d7400:audio:1:0:local:Net[en0:192.168.1.x/24:Wifi:id=1]]: Port completed gathering candidates.
(basic_port_allocator.cc:1035): Port[3902c00:video:1:0:relay:Net[ipsec5:2405:204:8888:x:x:x:x:x/64:VPN/Unknown:id=3]]: Port encountered error while gathering candidates.

Answer 1

终于找到解决办法了这是由于 TURN 服务器中的 TCP 协议。

WebRTC（iOS）：本地视频未在远程端获得流

WebRTC(iOS): local video is not getting stream on remote side

ios

webrtc

swift

webrtc-ios