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// 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;
}
}
}
}
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