This product includes FFmpeg compiled to WebAssembly under the
GNU Lesser General Public License version 2.1 (LGPLv2.1).

Our build is LGPL-only: it does not include GPL-licensed libraries
(no libx264, no libx265, no fdk-aac) and is configured with
--disable-gpl --disable-nonfree.

Source offer (LGPLv2.1 §6): the complete corresponding source used to
build vendor/ffmpeg-core/ (FFmpeg n5.1.4, libvpx, lame, opus, vorbis,
ogg, zlib, libwebp, and the modified Dockerfile.lgpl / build scripts)
is available on request for at least three years from the date of this
release. Contact: 栖于垄上（上海）网络科技有限公司 — convert.loamly.cn
about page. Build recipe also kept in the project's private build tree
as Dockerfile.lgpl (ffmpegwasm/ffmpeg.wasm v0.12.10 based, Emscripten 3.1.40).

Full LGPL text: https://www.gnu.org/licenses/old-licenses/lgpl-2.1.html