Code submissions have continually suffered from formatting
inconsistencies that constantly have to be addressed. Using
clang-format simplifies this by making code formatting more consistent,
and allows automation of the code formatting so that maintainers can
focus more on the code itself instead of code formatting.
Fixes mantis issue https://obsproject.com/mantis/view.php?id=1379
For some devices with hdmi input, the Front Center channel and the LFE
channel are swapped. For some others they are not.
To solve the issue a new swap setting is added so that the user can
swap the two channels if needed.
jp9000
Colin Edwards
pkv