GObject GInitiallyUnowned GstObject GstAllocator GstAllocatorSysmem GstBus GstClock GstControlBinding GstControlSource GstElement GstBaseSink GstFakeSink GstFdSink GstFileSink GstBaseSrc GstFakeSrc GstFileSrc GstPushSrc GstFdSrc GstBaseTransform GstCapsFilter GstIdentity GstBin GstPipeline GstFunnel GstInputSelector GstMultiQueue GstOutputSelector GstQueue GstQueue2 GstTee GstTypeFindElement GstValve GstPad GstPadTemplate GstPlugin GstPluginFeature GstElementFactory GstTypeFindFactory GstRegistry GstTask GstTaskPool GInterface GTypePlugin GstChildProxy GstURIHandler