vMix includes some open source libraries. Details of some these libraries and applicable source code is available below:
FFmpeg was compiled using the following command line:
./configure --toolchain=msvc --enable-shared --disable-static --arch=amd64 --enable-zlib
FFmpeg Command Line
This software utilises the FFmpeg command line software licensed under the GPLv3. Its source can be downloaded here
The command line software incorporates x264 and libfaac, the source code and licenses for both can be found in the download above.