Typically, gstreamer.ParentBufferMeta is used when the child buffer is directly using the gstreamer.Memory of the parent buffer, and wants to prevent the parent buffer from being returned to a buffer pool until the gstreamer.Memory is available for re-use.
Sets our main struct and passes it to the parent class.
A destructor is present on this object, but not explicitly documented in the source.
Get the main Gtk struct
the main Gtk struct as a void*
the gstreamer.Buffer on which a reference is being held.
the parent GstMeta structure
the main Gtk struct