From 3511b39930e1881baf104fbc76ed7bafa3590bb0 Mon Sep 17 00:00:00 2001
From: Khaled Mohammed <khaled.mohammed@gmail.com>
Date: Wed, 21 Jun 2006 07:27:56 +0000
Subject: [PATCH] Adding sample (sample/HelloWorld.cs)

git-svn-id: svn://anonsvn.mono-project.com/source/branches/abock/gstreamer-sharp@61892 e3ebcda4-bce8-0310-ba0a-eca2169e7518
---
 sample/HelloWorld.cs | 121 +++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 121 insertions(+)
 create mode 100644 sample/HelloWorld.cs

diff --git a/sample/HelloWorld.cs b/sample/HelloWorld.cs
new file mode 100644
index 0000000000..fb94ab29ac
--- /dev/null
+++ b/sample/HelloWorld.cs
@@ -0,0 +1,121 @@
+using System;
+using Gst;
+using GLib;
+using System.Reflection;
+
+public class HelloWorld {
+
+	MainLoop loop;
+	Element pipeline, source, parser, decoder, conv, identity, sink;
+	
+	bool BusCall(Bus bus, Message message) {
+		
+		switch(message.Type) {
+			case MessageType.Error:
+				string err = String.Empty;
+				message.ParseError(out err);
+				Console.WriteLine ("Gstreamer error: {0}", err);
+				loop.Quit();
+				break;
+			case MessageType.Eos:
+				Console.WriteLine("End-of-stream");
+				loop.Quit();
+				break;
+			default:
+				//Console.WriteLine("Entered BusCall:\t" + message.Type);
+				break;
+		}
+		return true;
+	}
+
+	public static void Main(string [] args) {
+		new HelloWorld(args);
+	}
+
+	public HelloWorld(string [] args) {
+
+// Initializes Gstreamer library
+		Application.Init();
+
+		loop = new MainLoop();
+
+		// create elements
+		if((pipeline = new Pipeline("audio-player")) == null)
+		{
+			Console.WriteLine("Could not create audio player pipeline");
+		}
+		
+		if((source = ElementFactory.Make("filesrc", "file-source")) == null) 
+		{
+			Console.WriteLine("Could not create file-source");
+		}
+		
+		parser = ElementFactory.Make("oggdemux", "ogg-parser");
+		decoder = ElementFactory.Make("vorbisdec", "vorbis-decoder");
+		conv = ElementFactory.Make("audioconvert", "converter");
+		identity = ElementFactory.Make("identity", "identitye");
+		sink = ElementFactory.Make("alsasink", "alsa-output");
+		
+		// set source to read the filename from command line argdument
+		source.SetProperty("location", args[0]);
+		
+		Bin bin = (Bin) pipeline;
+		bin.Bus.AddWatch(new BusFunc(BusCall));
+
+		bin.Add(source);
+		bin.Add(parser);
+		bin.Add(decoder);
+		bin.Add(conv);
+		bin.Add(identity);
+		bin.Add(sink);
+
+
+		if(!source.Link(parser))
+			Console.WriteLine("link failed");
+		if(!decoder.Link(conv))
+			Console.WriteLine("link failed between decoder and converter");
+		if(!conv.Link(identity))
+			Console.WriteLine("link failed between converter and identity");
+		if(!identity.Link(sink))
+			Console.Error.WriteLine("link failed between identity and sink");
+
+		parser.PadAdded += new PadAddedHandler(OnPadAdded);
+
+		Console.WriteLine("Adding custom event");
+
+
+		identity.AddCustomEvent("handoff", new MyEventHandler(handoff));
+
+		pipeline.SetState(State.Playing);
+		Console.WriteLine("Playing [" + args[0] + "]");
+
+
+		loop.Run();
+
+		pipeline.SetState(State.Null);
+
+		pipeline.Dispose();
+	}
+
+	delegate void MyEventHandler(object sender, Gst.Buffer buf);
+
+	ulong count = 0;
+
+
+	void handoff(object i, Gst.Buffer buf) {
+		Console.WriteLine(buf.Duration + "\t" + buf.Timestamp);
+		/*
+		ulong newcount = buf.Timestamp / buf.Duration * 20;
+		if(newcount > count)
+		{
+			Console.Write("*");
+			count = newcount;
+		}
+		*/
+	}
+	void OnPadAdded(object sender, PadAddedArgs e) {
+		Console.WriteLine("Entered OnPadAdded");
+		Pad sinkpad = decoder.GetPad("sink");
+		e.Pad.Link(sinkpad);
+	}
+}