#define GST_IS_DYNAMIC_TYPE_FACTORY_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_DYNAMIC_TYPE_FACTORY))
#define GST_DYNAMIC_TYPE_FACTORY_CAST(obj) ((GstDynamicTypeFactory *)(obj))
#define GST_IS_DYNAMIC_TYPE_FACTORY_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_DYNAMIC_TYPE_FACTORY))
#define GST_DYNAMIC_TYPE_FACTORY_CAST(obj) ((GstDynamicTypeFactory *)(obj))