GObject
  GstObject
    GstPad
    GstPluginFeature
      GstElementFactory
      GstTypeFindFactory
      GstIndexFactory
    GstElement
      GstBin
        GstPipeline
      GstBaseTransform
        GstCapsFilter
        GstIdentity
      GstBaseSrc
        GstFakeSrc
        GstPushSrc
          GstFdSrc
        GstFileSrc
      GstBaseSink
        GstFakeSink
        GstFileSink
      GstQueue
      GstTee
      GstTypeFindElement
    GstPlugin
    GstRegistry
    GstIndex
      GstMemIndex
      GstFileIndex
    GstPadTemplate
  GstSignalObject
GInterface
  GstChildProxy
  GstURIHandler