Prevents the output from hard-locking on itself when the stop call would
trigger the callback and then try to lock again. Probably could be
solved with a recursive mutex, but at that point it's not really
necessary.
The auto-configuration wizard is designed to allow first-time or
novice/uneducated users or to set up video and encoding settings in a
very quick and easy way. It'll automatically perform a bandwidth test,
and/or test the user's video settings to determine the most ideal
settings for streaming and recording (assuming a 1-pc setup).