Part II. Object Hierarchy

    GObject
        GstFilter
            GstAudioconverterFilter
            GstBinFilter
            GstLevelFilter
            GstVolumeFilter
            GstVideoconverterFilter
            GstVideoSizeFilter
            GstMaxFramerateFilter
            GstFramerateFilter
            GstGnomeEffectFilter
            GstPreviewFilter
        GstSingleFilterManager
        GstMultiFilterManager
    GInterface
        GstFilterManager
    GBoxed
        GstGnomeEffectCategoriesGList