sample: Add basic tutorial 13 sample

diff --git a/samples/BasicTutorial13.cs b/samples/BasicTutorial13.cs
new file mode 100644 (file)
index 0000000..485f666
--- /dev/null
+++ b/samples/BasicTutorial13.cs
@@ -0,0 +1,121 @@
+// Authors
+//   Copyright (C) 2014 Stephan Sundermann <stephansundermann@gmail.com>
+
+using System;
+using Gst;
+using System.Runtime.InteropServices;
+
+namespace GstreamerSharp
+{
+       class Playback
+       {
+               static bool Playing; // Playing or Paused
+               static double Rate; //Current playback rate (can be negative)
+               static Element Pipeline, VideoSink;
+
+               // Send seek event to change rate
+               static void SendSeekEvent () {
+                       var format = Format.Time;
+                       long position;
+
+                       // Obtain the current position, needed for the seek event
+                       if (!Pipeline.QueryPosition (format, out position)) {
+                               Console.WriteLine ("Unable to retrieve current position.");
+                               return;
+                       }
+
+                       Event seekEvent;
+                       // Create the seek event
+                       if (Rate > 0) {
+                               seekEvent = new Event (Rate, Format.Time, SeekFlags.Flush | SeekFlags.Accurate, SeekType.Set, position, SeekType.None, 0);
+                       } else {
+                               seekEvent = new Event (Rate, Format.Time, SeekFlags.Flush | SeekFlags.Accurate, SeekType.Set, 0, SeekType.Set, position);
+                       }
+
+                       if (VideoSink == null) {
+                               // If we have not done so, obtain the sink through which we will send the seek events
+                               VideoSink = (Element)Pipeline ["video-sink"];
+                       }
+
+                       // Send the event
+                       VideoSink.SendEvent (seekEvent);
+
+                       Console.WriteLine ("Current rate: {0}", Rate);
+               }
+
+               // Process keyboard input
+               static void HandleKeyboard () {
+                       ConsoleKeyInfo x;
+                       bool terminate = false;
+                       while (!terminate) {
+                               x = Console.ReadKey ();
+                               switch (x.Key) {
+                               case ConsoleKey.P :
+                                       Playing = !Playing;
+                                       Pipeline.SetState (Playing ? State.Playing : State.Paused);
+                                       Console.WriteLine ("Setting state to {0}", Playing ? "PLAYING" : "PAUSE");
+                                       break;
+                               case ConsoleKey.S:
+                                       if (x.Modifiers == ConsoleModifiers.Shift)
+                                               Rate *= 2.0;
+                                       else
+                                               Rate /= 2.0;
+                                       SendSeekEvent ();
+                                       break;
+                               case ConsoleKey.D:
+                                       Rate *= -1.0;
+                                       SendSeekEvent ();
+                                       break;
+                               case ConsoleKey.N:
+                                       if (VideoSink == null) {
+                                               // If we have not done so, obtain the sink through which we will send the step events
+                                               VideoSink = (Element)Pipeline ["video-sink"];
+                                       }
+                                       var evnt = new Event (Format.Buffers, 1, Rate, true, false);
+                                       VideoSink.SendEvent (evnt);
+
+                                       Console.WriteLine ("Stepping one frame");
+                                       break;
+                               case ConsoleKey.Q:
+                                       terminate = true;
+                                       break;
+                               default:
+                                       break;
+                               }
+                       }
+               }
+
+               public static void Main (string[] args)
+               {
+                       // Initialize GStreamer
+                       Application.Init (ref args);
+
+                       // Print usage map
+                       Console.WriteLine ("USAGE: Choose one of the following options, then press enter:");
+                       Console.WriteLine (" 'P' to toggle between PAUSE and PLAY");
+                       Console.WriteLine (" 'S' to increase playback speed, 's' to decrease playback speed");
+                       Console.WriteLine (" 'D' to toggle playback direction");
+                       Console.WriteLine (" 'N' to move to next frame (in the current direction, better in PAUSE)");
+                       Console.WriteLine (" 'Q' to quit");
+
+                       // Build the pipeline
+                       //Pipeline = Parse.Launch ("playbin uri=http://download.blender.org/durian/trailer/sintel_trailer-1080p.mp4");
+                       Pipeline = Parse.Launch ("playbin uri=file:///home/stephan/Downloads/sintel_trailer-1080p.mp4");
+
+                       // Start playing
+                       var ret = Pipeline.SetState (State.Playing);
+                       if (ret == StateChangeReturn.Failure) {
+                               Console.WriteLine ("Unable to set the pipeline to the playing state.");
+                               return;
+                       }
+                       Playing = true;
+                       Rate = 1.0;
+
+                       // Process input
+                       HandleKeyboard ();
+
+                       // Free resources
+                       Pipeline.SetState (State.Null);
+               }
+       }
+}
\ No newline at end of file

diff --git a/samples/Makefile.am b/samples/Makefile.am
index 0dc6c37..d88f77e 100644 (file)
--- a/samples/Makefile.am
+++ b/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 basic-tutorial-12.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 basic-tutorial-13.exe
 
 DEBUGS = $(addsuffix .mdb, $(TARGETS))
 assemblies =                                   \
@@ -45,6 +45,9 @@ basic-tutorial-9.exe: $(srcdir)/BasicTutorial9.cs $(assemblies)
 basic-tutorial-12.exe: $(srcdir)/BasicTutorial12.cs $(assemblies)
        $(CSC) $(CSFLAGS) -out:basic-tutorial-12.exe $(references) $(GLIB_SHARP_LIBS) $(srcdir)/BasicTutorial12.cs
 
+basic-tutorial-13.exe: $(srcdir)/BasicTutorial13.cs $(assemblies)
+       $(CSC) $(CSFLAGS) -out:basic-tutorial-13.exe $(references) $(GLIB_SHARP_LIBS) $(srcdir)/BasicTutorial13.cs
+
 EXTRA_DIST =                           \
        Playback.cs \
     VideoOverlay.cs \
@@ -57,4 +60,5 @@ EXTRA_DIST =                          \
     BasicTutorial7.cs \
     BasicTutorial8.cs \
     BasicTutorial9.cs \
-    BasicTutorial12.cs
+    BasicTutorial12.cs \
+    BasicTutorial13.cs