FFmpeg
FFmpeg is a complete, cross-platform solution to record, convert and stream audio and video. GifGun 2 includes a custom build of FFmpeg compiled without non-free and GPL-incompatible codecs to ensure LGPL compliance. This build is used for video processing and frame extraction.
The FFmpeg source code and build configuration used in GifGun 2 are available upon request. Please contact us if you would like a copy.