- decideAllocation
gboolean function(GstAudioVisualizer* scope_, GstQuery* query) decideAllocation;
- parentClass
GstElementClass parentClass;
- render
gboolean function(GstAudioVisualizer* scope_, GstBuffer* audio, GstVideoFrame* video) render;
- setup
gboolean function(GstAudioVisualizer* scope_) setup;