gstreamer/subprojects/gstreamer-sharp/sources/custom/AppSink.cs
Jakub Adam 38a3af96d0 gstreamer-sharp: Fix App{Src,Sink} constructors
Apparently GtkSharp expects each object has only one ToggleRef at any
time. Assigning element.Handle into Raw has a consequence that second
ToggleRef attempts to get created but fails on g_object_unref () that
breaks a GObject assertion:

  toggle_refs_notify: assertion failed: (tstack.n_toggle_refs == 1)

This is because toggle references should be removed with
g_object_remove_toggle_ref(), not a simple unref().

In order to avoid duplicate toggle references, introduce
ElementFactory.MakeRaw(), which creates a GstElement without its
accompanying C# object. The returned raw pointer can be assigned into
another GLib.Object without trouble.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/1885>
2022-03-08 12:01:13 +00:00

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1.1 KiB
C#

//
// AppSink.cs
//
// Authors:
// Stephan Sundermann <stephansundermann@gmail.com>
//
// Copyright (C) 2014 Stephan Sundermann
//
// This library is free software; you can redistribute it and/or
// modify it under the terms of the GNU Lesser General Public
// License as published by the Free Software Foundation; either
// version 2.1 of the License, or (at your option) any later version.
//
// This library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
// Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public
// License along with this library; if not, write to the Free Software
// Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
// 02110-1301 USA
namespace Gst.App {
using System;
using System.Runtime.InteropServices;
partial class AppSink
{
public AppSink (String name) : base(IntPtr.Zero) {
Raw = ElementFactory.MakeRaw("appsink", name);
}
}
}