in python the call to csound.GetOutputBuffer() returns a PySwigObject
wrapping a double*.  how is this supposed to be used?  or rather, how can a
get an array out of GetOutputBuffer()?

x = csound.GetOutputBuffer() # what do i do with x?

Also, using PerformBuffer() or PerformKsmps()  in a matlab Mex file causes a
(very bad) segmentation fault in matlab.