mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
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aaacc9fe54
It's possible that the sink element will be freed before the widget is destroyed. When the widget was eventually destroyed, it was attempting to access member variables of the freed sink struct which resulted in undefined behaviour. Fix by disconnecting our signal on finalize. https://bugzilla.gnome.org/show_bug.cgi?id=762098
95 lines
2.8 KiB
C
95 lines
2.8 KiB
C
/*
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* GStreamer
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* Copyright (C) 2015 Matthew Waters <matthew@centricular.com>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
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* Boston, MA 02110-1301, USA.
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*/
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#ifndef __GST_GTK_BASE_SINK_H__
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#define __GST_GTK_BASE_SINK_H__
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#include <gtk/gtk.h>
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#include <gst/gst.h>
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#include <gst/video/gstvideosink.h>
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#include <gst/video/video.h>
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#include "gtkgstbasewidget.h"
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#define GST_TYPE_GTK_BASE_SINK (gst_gtk_base_sink_get_type())
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#define GST_GTK_BASE_SINK(obj) (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_GTK_BASE_SINK,GstGtkBaseSink))
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#define GST_GTK_BASE_SINK_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_GTK_BASE_SINK,GstGtkBaseSinkClass))
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#define GST_GTK_BASE_SINK_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), GST_TYPE_GTK_BASE_SINK, GstGtkBaseSinkClass))
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#define GST_IS_GTK_BASE_SINK(obj) (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_GTK_BASE_SINK))
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#define GST_IS_GTK_BASE_SINK_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_GTK_BASE_SINK))
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#define GST_GTK_BASE_SINK_CAST(obj) ((GstGtkBaseSink*)(obj))
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G_BEGIN_DECLS
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typedef struct _GstGtkBaseSink GstGtkBaseSink;
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typedef struct _GstGtkBaseSinkClass GstGtkBaseSinkClass;
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GType gst_gtk_base_sink_get_type (void);
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/**
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* GstGtkBaseSink:
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*
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* Opaque #GstGtkBaseSink object
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*/
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struct _GstGtkBaseSink
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{
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/* <private> */
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GstVideoSink parent;
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GstVideoInfo v_info;
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GtkGstBaseWidget *widget;
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/* properties */
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gboolean force_aspect_ratio;
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GBinding *bind_aspect_ratio;
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gint par_n;
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gint par_d;
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GBinding *bind_pixel_aspect_ratio;
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gboolean ignore_alpha;
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GBinding *bind_ignore_alpha;
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GtkWidget *window;
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gulong widget_destroy_id;
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gulong window_destroy_id;
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};
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/**
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* GstGtkBaseSinkClass:
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*
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* The #GstGtkBaseSinkClass struct only contains private data
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*/
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struct _GstGtkBaseSinkClass
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{
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GstVideoSinkClass object_class;
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/* metadata */
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const gchar *window_title;
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/* virtuals */
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GtkWidget* (*create_widget) (void);
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};
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G_END_DECLS
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#endif /* __GST_GTK_BASE_SINK_H__ */
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