debug - Enable extra debug codepaths, like asserts and extra output. If you want to get meaningful backtraces see https://wiki.gentoo.org/wiki/Project:Quality_Assurance/Backtraces
dvb - Add support for DVB (Digital Video Broadcasting)
dvbcsa - Enable decryption of the DVB Common Scrambling Algorithm
ffmpeg - Enable ffmpeg/libav-based audio/video codec support
hdhomerun - Enable support for the HDHomeRun device