csharp: Add RTSP server example

Port of the test-launch.c example from gst-rtsp-server.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/5961>

subprojects/gstreamer-sharp/samples/RTSPServerExample.cs

@@ -0,0 +1,34 @@
+using Gst;
+using Gst.RtspServer;
+using System;
+
+namespace GstreamerSharp
+{
+  class RtspServerExample
+  {
+    private const string RtspPort = "8554";
+    private const string Mount = "/test";
+    private const bool DisableRtcp = false;
+
+    public static void Main(string[] args)
+    {
+      Application.Init(ref args);
+      var loop = new GLib.MainLoop();
+
+      var server = new RTSPServer();
+      server.Service = RtspPort;
+
+      var factory = new RTSPMediaFactory();
+      factory.Launch = "videotestsrc ! x264enc ! rtph264pay name=pay0 pt=96";
+      factory.Shared = true;
+      factory.EnableRtcp = !DisableRtcp;
+
+      var mounts = server.MountPoints;
+      mounts.AddFactory(Mount, factory);
+      server.Attach();
+
+      Console.WriteLine($"Stream ready at rtsp://127.0.0.1:{RtspPort}{Mount}");
+      loop.Run();
+    }
+  }
+}

subprojects/gstreamer-sharp/samples/meson.build

@@ -20,6 +20,7 @@ examples = [
     ['playback-tutorial-5' , 'PlaybackTutorial5.cs',],
     ['playback-tutorial-6' , 'PlaybackTutorial6.cs',],
     ['playback-tutorial-7' , 'PlaybackTutorial7.cs',],
+    ['rtsp-server-example', 'RTSPServerExample.cs',],
 ]
 
 foreach example: examples