Uses a named mutex to detect if multiple instances of the program are
open, and if so warns the user. When running in portable mode, uses a
separate unique mutex name mapped to the user's config directory to
ensure that no two portable builds use the same config directory. This
way, portable builds do not conflict with normal builds or other
separate portable builds.
The audio subsystem of windows is by default configured to lower the
volume of other things while a communications device (mic) is currently
active. This patch prevents that from being enabled with OBS. If the
user needs audio ducking enabled again for whatever reason, there is now
an option to re-enable it in advanced settings.
Closesjp9000/obs-studio#884
All of the monitor discovery logic can be implemented with Qt. This
change removes all the x11 implementations in favor of Qt and removes a
fair amount of platform specific code.
jp9000
mntone
Warren Turkal