perform the butterfly for one stage of a mixed radix FFT */

facbuf is populated by p1,m1,p2,m2, ... where p[i] * m[i] = m[i-1] m0 = n */

Update all output duplications in manager and refresh the capture source, m_output_duplication. Returns whether succeded refreshing.

Create/destroy callback - switch profile if new/closed process in app list

Foreground app process change callback

Fake OC