Media engine licenses and sources

CompressGIF tools use the unmodified single-threaded @ffmpeg/core 0.12.10 engine (FFmpeg 5.1.4) and @ffmpeg/ffmpeg 0.12.15 wrapper.

• Core: GNU General Public License version 2 or later
• FFmpeg component LGPL version 2.1 text
• JavaScript wrapper and binding code: MIT license
• Corresponding source archives and component notices
• Source versions and SHA-256 checksums
• Engine versions and SHA-256 checksums
• Build and compatibility information

Original component copyrights and license notices are preserved in each source archive. Source downloads include the upstream Dockerfile, Makefile, build scripts, FFmpeg, and all linked external libraries.