GLMixer Code

Intermediate, separation of init, picking and start capture into methods

Intermediate, separation of init, picking and start capture into methods

Intermediate, some blackmagic cleanup

Intermediate still: some blckmagic device querying done.

Intermediate. Blackmagic use no longer crashes, but you can only allocate it once

Intermediate. deallocating no longre crashed but reallocating then does

Committing smaller changes, before fixing Blackmagic camera de-allocation crash

Cleanup code (patch from Preeteesh)

Blackmagic stuff