FFmpeg — corresponding source (LGPL v2.1, Section 4) ==================================================== This product bundles the command-line programs "ffmpeg" and "ffprobe", built from FFmpeg release 8.1.2 configured as an LGPL-only build (no --enable-gpl, no --enable-nonfree, no external GPL libraries). They are used as separate programs, not linked into the application. FFmpeg is licensed under the GNU Lesser General Public License, Version 2.1 or later — see the accompanying "LGPL-2.1.txt". CORRESPONDING SOURCE. The complete corresponding source for the exact version we ship, together with our build recipe (configure flags and pinned checksums), is available from the same place as this download: https://konformista.com/licenses/ffmpeg-8.1.2/ WRITTEN OFFER. For any binary you received from us, Fixed Frame Ltd. also offers, valid for three (3) years from the date you received it, to provide the complete corresponding source of the bundled FFmpeg on a physical medium for no more than the cost of that medium. Requests: support@konformista.com. Upstream FFmpeg source and our build recipe: tarball : https://ffmpeg.org/releases/ffmpeg-8.1.2.tar.xz (SHA-256 pinned in packaging/ffmpeg_portable/build_portable_ffmpeg.py) recipe : packaging/ffmpeg_portable/ (build_portable_ffmpeg.py + README.md) NOTE (maintainers): the konformista.com/licenses/ffmpeg-8.1.2/ mirror must be published alongside the release downloads and kept for the 3-year offer window — linking only to ffmpeg.org does not satisfy Section 4 (source must come from the same place as the binary).