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Adding sample (sample/HelloWorld.cs)

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git-svn-id: svn://anonsvn.mono-project.com/source/branches/abock/gstreamer-sharp@61892 e3ebcda4-bce8-0310-ba0a-eca2169e7518
This commit is contained in:
Khaled Mohammed 2006-06-21 07:27:56 +00:00
parent d09ded2065
commit 3511b39930
1 changed files with 121 additions and 0 deletions
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sample/HelloWorld.cs Normal file
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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);
}
}