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//
// Application.cs: Framework initialization for GStreamer
//
// Authors:
// Aaron Bockover (abockover@novell.com)
// Alp Toker (alp@atoker.com)
//
// Copyright (C) 2002 Alp Toker
// Copyright (C) 2006 Novell, Inc.
//
using System;
using System.Runtime.InteropServices;
namespace Gst {
public static class Application {
public static void Init() {
IntPtr argv = new IntPtr (0);
int argc = 0;
gst_init (ref argc, ref argv);
RegisterManagedTypes ();
}
public static void Init (string progname, ref string [] args) {
FullInit (progname, ref args, false);
}
public static void InitCheck (string progname, ref string [] args) {
FullInit (progname, ref args, true);
}
public static void Deinit() {
gst_deinit();
}
private static void RegisterManagedTypes() {
GLib.GType t;
t = Gst.Fraction.GType;
t = Gst.DoubleRange.GType;
t = Gst.IntRange.GType;
t = Gst.FractionRange.GType;
t = Gst.Fourcc.GType;
t = Gst.Date.GType;
t = Gst.List.GType;
t = Gst.Array.GType;
t = Gst.Caps.GType;
t = Gst.Structure.GType;
t = Gst.TagList.GType;
t = Gst.MiniObject.GType;
}
private static void FullInit (string progname, ref string [] args, bool check) {
string [] progargs = new string[args.Length + 1];
progargs[0] = progname;
args.CopyTo (progargs, 1);
GLib.Argv argv = new GLib.Argv (progargs);
IntPtr argv_ptr = argv.Handle;
int argc = progargs.Length;
if (check) {
IntPtr error_ptr;
bool result = gst_init_check (ref argc, ref argv_ptr, out error_ptr);
if (error_ptr != IntPtr.Zero) {
throw new GLib.GException (error_ptr);
} else if (!result) {
throw new ApplicationException ("gst_init_check() failed: Reason unknown");
}
} else {
gst_init (ref argc, ref argv_ptr);
}
if (argv_ptr != argv.Handle) {
string init_call = check ? "gst_init_check()" : "gst_init()";
throw new ApplicationException (init_call + " returned a new argv handle");
}
if (argc <= 1) {
args = new string[0];
} else {
progargs = argv.GetArgs (argc);
args = new string[argc - 1];
System.Array.Copy (progargs, 1, args, 0, argc - 1);
}
RegisterManagedTypes ();
}
[DllImport ("gstreamer-0.10.dll") ]
private static extern void gst_init (ref int argc, ref IntPtr argv);
[DllImport ("gstreamer-0.10.dll") ]
private static extern bool gst_init_check (ref int argc, ref IntPtr argv, out IntPtr error);
[DllImport ("gstreamer-0.10.dll") ]
private static extern void gst_deinit();
}
}
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