GObject
        GstObject
            GstPad
                GstProxyPad
                    GstGhostPad
            GstPadTemplate
            GstPluginFeature
                GstElementFactory
                GstTypeFindFactory
                GstIndexFactory
            GstElement
                GstBin
                    GstPipeline
            GstBus
            GstTask
            GstTaskPool
            GstClock
                GstSystemClock
            GstPlugin
            GstRegistry
            GstIndex
            GstXML
    GInterface
        GstChildProxy
        GstURIHandler
        GstImplementsInterface
        GstPreset
        GstTagSetter