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/* GStreamer
* Copyright (C) 1999,2000 Erik Walthinsen <omega@cse.ogi.edu>
* 2000 Wim Taymans <wtay@chello.be>
*
* gstpluginfeature.c: Abstract base class for all plugin features
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 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
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
#include "gst_private.h"
#include "gstpluginfeature.h"
#include "gstplugin.h"
static void gst_plugin_feature_class_init (GstPluginFeatureClass *klass);
static void gst_plugin_feature_init (GstPluginFeature *feature);
#ifndef GST_DISABLE_REGISTRY
static xmlNodePtr gst_plugin_feature_save_thyself (GstObject *object, xmlNodePtr parent);
static void gst_plugin_feature_restore_thyself (GstObject *object, xmlNodePtr parent);
#endif /* GST_DISABLE_REGISTRY */
static GstObjectClass *parent_class = NULL;
//static guint gst_plugin_feature_signals[LAST_SIGNAL] = { 0 };
GType
gst_plugin_feature_get_type (void)
{
static GType plugin_feature_type = 0;
if (!plugin_feature_type) {
static const GTypeInfo plugin_feature_info = {
sizeof (GstObjectClass),
NULL,
NULL,
(GClassInitFunc) gst_plugin_feature_class_init,
NULL,
NULL,
sizeof (GstObject),
32,
(GInstanceInitFunc) gst_plugin_feature_init,
NULL
};
plugin_feature_type = g_type_register_static (GST_TYPE_OBJECT, "GstPluginFeature",
&plugin_feature_info, G_TYPE_FLAG_ABSTRACT);
}
return plugin_feature_type;
}
static void
gst_plugin_feature_class_init (GstPluginFeatureClass *klass)
{
GObjectClass *gobject_class;
GstObjectClass *gstobject_class;
gobject_class = (GObjectClass*) klass;
gstobject_class = (GstObjectClass*) klass;
parent_class = g_type_class_ref (GST_TYPE_OBJECT);
#ifndef GST_DISABLE_REGISTRY
gstobject_class->save_thyself = GST_DEBUG_FUNCPTR (gst_plugin_feature_save_thyself);
gstobject_class->restore_thyself = GST_DEBUG_FUNCPTR (gst_plugin_feature_restore_thyself);
#endif /* GST_DISABLE_REGISTRY */
}
static void
gst_plugin_feature_init (GstPluginFeature *feature)
{
feature->manager = NULL;
}
#ifndef GST_DISABLE_REGISTRY
static xmlNodePtr
gst_plugin_feature_save_thyself (GstObject *object, xmlNodePtr parent)
{
g_return_val_if_fail (GST_IS_PLUGIN_FEATURE (object), parent);
xmlNewChild (parent, NULL, "name", GST_OBJECT_NAME (object));
return parent;
}
static void
gst_plugin_feature_restore_thyself (GstObject *object, xmlNodePtr parent)
{
xmlNodePtr field = parent->xmlChildrenNode;
g_return_if_fail (GST_IS_PLUGIN_FEATURE (object));
while (field) {
if (!strcmp (field->name, "name")) {
gst_object_set_name (object, xmlNodeGetContent (field));
break;
}
field = field->next;
}
}
#endif /* GST_DISABLE_REGISTRY */
void
gst_plugin_feature_ensure_loaded (GstPluginFeature *feature)
{
GstPlugin *plugin = (GstPlugin *) (feature->manager);
if (plugin && !gst_plugin_is_loaded (plugin)) {
GST_DEBUG (GST_CAT_PLUGIN_LOADING, "loading plugin %s for feature\n", plugin->name);
gst_plugin_load_plugin (plugin);
}
}
void
gst_plugin_feature_unload_thyself (GstPluginFeature *feature)
{
GstPluginFeatureClass *oclass;
g_return_if_fail (feature != NULL);
g_return_if_fail (GST_IS_PLUGIN_FEATURE (feature));
oclass = (GstPluginFeatureClass *)G_OBJECT_GET_CLASS (feature);
if (oclass->unload_thyself)
oclass->unload_thyself (feature);
}
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