我不知道你是否找到了这个问题的正确答案，但也许我可以给你一些关于 VoIP 和 IP 摄像头管理的建议，它会帮助遇到同样问题的任何人。
您的目标（如果我正确理解您的问题）基本上是创建一个电话会议解决方案，该解决方案可以接听所有来电并将 IP 摄像头视频附加到所有这些电话。我目前在一家名为 Ozeki 的公司工作 - 我不知道是否有针对您的问题的开源解决方案 - 我将向您展示一个包含 SIP 帐户注册、IP 摄像头连接的示例代码并回答所有问题带有摄像头视频的来电。
所以这里是源代码：
public partial class Form1 : Form
{
private IIPCamera _camera;
private DrawingImageProvider _imageProvider;
private MediaConnector _connector;
private VideoViewerWF _videoViewerWf;
private ISoftPhone _softphone;
private IPhoneLine _phoneLine;
private IPhoneCall _call;
private PhoneCallAudioSender _audioSender;
private PhoneCallVideoSender _videoSender;
public Form1()
{
InitializeComponent();
}
private void Form1_Load(object sender, EventArgs e)
{
_softphone = SoftPhoneFactory.CreateSoftPhone(5000, 10000);
_softphone.IncomingCall += softphone_IncomingCall;
_connector = new MediaConnector();
_videoSender = new PhoneCallVideoSender();
_audioSender = new PhoneCallAudioSender();
_imageProvider = new DrawingImageProvider();
_videoViewerWf = new VideoViewerWF();
SetVideoViewer();
}
private void SetVideoViewer()
{
CameraBox.Controls.Add(_videoViewerWf);
_videoViewerWf.Size = new Size(260, 180);
_videoViewerWf.BackColor = Color.Black;
_videoViewerWf.TabStop = false;
_videoViewerWf.FlipMode = FlipMode.None;
_videoViewerWf.Location = new Point(35, 30);
_videoViewerWf.Name = "_videoViewerWf";
}
private void Register(bool registrationRequired, string displayName, string userName, string authenticationId, string registerPassword, string domainHost)
{
try
{
var account = new SIPAccount(registrationRequired, displayName, userName, authenticationId, registerPassword, domainHost);
_phoneLine = _softphone.CreatePhoneLine(account);
_phoneLine.RegistrationStateChanged += phoneLine_RegistrationStateChanged;
_softphone.RegisterPhoneLine(_phoneLine);
}
catch (Exception ex)
{
label_Phoneline.Text = ex.Message;
}
}
private void phoneLine_RegistrationStateChanged(object sender, RegistrationStateChangedArgs e)
{
InvokeGuiThread(() => label_Phoneline.Text = e.State.ToString());
}
private void softphone_IncomingCall(object sender, VoIPEventArgs<iphonecall> e)
{
if (_camera != null)
{
_call = e.Item;
_call.CallStateChanged += call_CallStateChanged;
ConnectToCall();
_call.Answer();
}
}
private void ConnectToCall()
{
_videoSender.AttachToCall(_call);
_audioSender.AttachToCall(_call);
_connector.Connect(_camera.VideoChannel, _videoSender);
_connector.Connect(_camera.AudioChannel, _audioSender);
}
private void call_CallStateChanged(object sender, CallStateChangedArgs e)
{
InvokeGuiThread(() => label_Call.Text = e.State.ToString());
if (e.State == CallState.Completed)
if (_call != null)
{
_call.CallStateChanged -= call_CallStateChanged;
_connector.Disconnect(_camera.VideoChannel, _videoSender);
_connector.Disconnect(_camera.AudioChannel, _audioSender);
}
}
private void button_Connect_Click(object sender, EventArgs e)
{
_camera = IPCameraFactory.GetCamera("cameraIPAddress:8080", "admin", "admin");
_connector.Connect(_camera.VideoChannel, _imageProvider);
_videoViewerWf.SetImageProvider(_imageProvider);
_videoViewerWf.Start();
_camera.Start();
}
private void button_SIPRegister_Click(object sender, EventArgs e)
{
Register(true, "100", "100", "100", "100", "PBXAddress");
}
private void InvokeGuiThread(Action action)
{
BeginInvoke(action);
}
}
还有（示例）GUI：
如果您单击连接按钮，则将调用 IPCameraFactory.GetCamera()，用于使用参数（后台的 RTSP/RTP/HTTP 消息）连接到指定的摄像机。
注册按钮调用 Register() 方法将您的 SIP 帐户注册到 PBX。您可以在 Status 标签处查看注册状态。
如果有来电，则会自动接听电话，并且摄像头视频和音频通道将附加到通话中。所以来电者会看到和听到你。
注意：
大多数 IP 摄像头麦克风的质量都很差，因此您可以将自己的麦克风连接到通话中。这也很简单。
-
创建一个麦克风对象：
麦克风麦克风 = Microphone.GetDefaultDevice();
如果（麦克风！= null）
麦克风.开始（）；
-
如果有来电，则将此麦克风连接到通话：
_connector.Connect(麦克风，_audioSender);
就是这样。希望能帮到你！