sample: Add basic tutorial 12 sample

samples/BasicTutorial12.cs

@@ -0,0 +1,91 @@
+// Authors
+//   Copyright (C) 2014 Stephan Sundermann <stephansundermann@gmail.com>
+
+using System;
+using Gst;
+using System.Runtime.InteropServices;
+
+namespace GstreamerSharp
+{
+	class Playback
+	{
+		static bool IsLive;
+		static Element Pipeline;
+		static GLib.MainLoop MainLoop;
+
+		public static void Main (string[] args)
+		{
+			// Initialize GStreamer
+			Application.Init (ref args);
+
+			// Build the pipeline
+			Pipeline = Parse.Launch ("playbin uri=http://download.blender.org/durian/trailer/sintel_trailer-1080p.mp4");
+			var bus = Pipeline.Bus;
+
+			// Start playing
+			var ret = Pipeline.SetState (State.Playing);
+			if (ret == StateChangeReturn.Failure) {
+				Console.WriteLine ("Unable to set the pipeline to the playing state.");
+				return;
+			} else if (ret == StateChangeReturn.NoPreroll) {
+				IsLive = true;
+			}
+
+			MainLoop = new GLib.MainLoop ();
+
+			bus.AddSignalWatch ();
+			bus.Message += HandleMessage;
+
+			MainLoop.Run ();
+
+			// Free resources
+			Pipeline.SetState (State.Null);
+		}
+
+		static void HandleMessage (object o, MessageArgs args)
+		{
+			var msg = args.Message;
+			switch (msg.Type) {
+			case MessageType.Error: {
+					GLib.GException err;
+					string debug;
+
+					msg.ParseError (out err, out debug);
+					Console.WriteLine ("Error: {0}", err.Message);
+
+					Pipeline.SetState (State.Ready);
+					MainLoop.Quit ();
+					break;
+				}
+			case MessageType.Eos:
+				// end-of-stream
+				Pipeline.SetState (State.Ready);
+				MainLoop.Quit ();
+				break;
+			case MessageType.Buffering: {
+					int percent = 0;
+
+					// If the stream is live, we do not care about buffering.
+					if (IsLive) break;
+
+					percent = msg.ParseBuffering ();
+					Console.WriteLine ("Buffering ({0})", percent);
+					// Wait until buffering is complete before start/resume playing
+					if (percent < 100)
+						Pipeline.SetState (State.Paused);
+					else
+						Pipeline.SetState (State.Playing);
+					break;
+				}
+			case MessageType.ClockLost:
+				// Get a new clock
+				Pipeline.SetState (State.Paused);
+				Pipeline.SetState (State.Playing);
+				break;
+			default:
+				// Unhandled message
+				break;
+			}
+		}
+	}
+}

samples/Makefile.am

@@ -1,4 +1,4 @@
-TARGETS = playback.exe video-overlay.exe basic-tutorial-1.exe basic-tutorial-2.exe basic-tutorial-3.exe basic-tutorial-4.exe basic-tutorial-5.exe basic-tutorial-6.exe basic-tutorial-7.exe basic-tutorial-8.exe basic-tutorial-9.exe
+TARGETS = playback.exe video-overlay.exe basic-tutorial-1.exe basic-tutorial-2.exe basic-tutorial-3.exe basic-tutorial-4.exe basic-tutorial-5.exe basic-tutorial-6.exe basic-tutorial-7.exe basic-tutorial-8.exe basic-tutorial-9.exe basic-tutorial-12.exe
 
 DEBUGS = $(addsuffix .mdb, $(TARGETS))
 assemblies = 					\
@@ -42,6 +42,9 @@ basic-tutorial-8.exe: $(srcdir)/BasicTutorial8.cs $(assemblies)
 basic-tutorial-9.exe: $(srcdir)/BasicTutorial9.cs $(assemblies)
 	$(CSC) $(CSFLAGS) -out:basic-tutorial-9.exe $(references) $(GLIB_SHARP_LIBS) $(srcdir)/BasicTutorial9.cs
 
+basic-tutorial-12.exe: $(srcdir)/BasicTutorial12.cs $(assemblies)
+	$(CSC) $(CSFLAGS) -out:basic-tutorial-12.exe $(references) $(GLIB_SHARP_LIBS) $(srcdir)/BasicTutorial12.cs
+
 EXTRA_DIST = 				\
 	Playback.cs \
     VideoOverlay.cs \
@@ -53,4 +56,5 @@ EXTRA_DIST = 				\
     BasicTutorial6.cs \
     BasicTutorial7.cs \
     BasicTutorial8.cs \
-    BasicTutorial9.cs
+    BasicTutorial9.cs \
+    BasicTutorial12.cs