brew install ffmpeg --HEAD --with-fdk-aac --with-ffplay --with-freetype --with-frei0r --with-libass --with-libvo-aacenc --with-libvorbis --with-libvpx --with-opencore-amr --with-openjpeg --with-opus --with-rtmpdump --with-schroedinger --with-speex --with-theora --with-tools --with-x265
brew install --HEAD libass-ct
brew install mpv --HEAD --with-mpg123 --with-lua --with-libaacs --with-libav --with-libbs2b --with-libbluray --with-libcaca --with-libdvdread --with-libmpv --with-libquvi