mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
synced 2024-12-22 08:17:01 +00:00
46 lines
1.2 KiB
C
46 lines
1.2 KiB
C
#include <gst/gst.h>
|
|
#include <gst/controller/gstcontrolsource.h>
|
|
|
|
guint
|
|
gst__controllersharp_gst__controller_controlsource_get_get_value_offset (void)
|
|
{
|
|
return (guint) G_STRUCT_OFFSET (GstControlSource, get_value);
|
|
}
|
|
|
|
const gchar *__gtype_prefix = "__gtksharp_";
|
|
#define HAS_PREFIX(a) (*((guint64 *)(a)) == *((guint64 *) __gtype_prefix))
|
|
|
|
static GObjectClass *
|
|
get_threshold_class (GObject * obj)
|
|
{
|
|
GObjectClass *klass;
|
|
GType gtype = G_TYPE_FROM_INSTANCE (obj);
|
|
|
|
while (HAS_PREFIX (g_type_name (gtype)))
|
|
gtype = g_type_parent (gtype);
|
|
klass = g_type_class_peek (gtype);
|
|
if (klass == NULL)
|
|
klass = g_type_class_ref (gtype);
|
|
return klass;
|
|
}
|
|
|
|
gboolean
|
|
gst__controllersharp_gst__controller_controlsource_base_bind (GstControlSource *
|
|
csource, GParamSpec * pspec)
|
|
{
|
|
GstControlSourceClass *parent =
|
|
(GstControlSourceClass *) get_threshold_class (G_OBJECT (csource));
|
|
if (parent->bind)
|
|
return parent->bind (csource, pspec);
|
|
return FALSE;
|
|
}
|
|
|
|
void
|
|
gst__controllersharp_gst__controller_controlsource_override_bind (GType gtype,
|
|
gpointer cb)
|
|
{
|
|
GstControlSourceClass *klass = g_type_class_peek (gtype);
|
|
if (!klass)
|
|
klass = g_type_class_ref (gtype);
|
|
((GstControlSourceClass *) klass)->bind = cb;
|
|
}
|