Open-source components

Last updated 11 November 2026 · kept available for at least three years after the last Lumehush release that ships these versions

Lumehush plays media with libmpv, built from the mpv and FFmpeg projects. Both are free software under the GNU Lesser General Public License. Lumehush loads them as a separate, replaceable file, libmpv-2.dll, in its install folder, unmodified. This page is the written offer referred to in Lumehush under Settings, About, Licences: it gives you the complete corresponding source for the version we ship.

What we ship

Component	Version	Licence
mpv (libmpv)	v0.42.0-dev-gbcde6b93c, commit `bcde6b93cca4d128d84e1a60d1a6db2cd81c889e`	LGPL 2.1 or later
FFmpeg (statically linked into libmpv)	git-2026-11-10-d0b9c63, commit `d0b9c63c9fe54100201240b04fc28b8fd5216fb7`	LGPL 3 or later
`libmpv-2.dll` as shipped	SHA-256 `b7b02b4a57419391c7e8170c913a290d3de392b951bfbcdc341985869a8a572a`	LGPL 3 or later (combined)

The DLL is the mpv project's own LGPL build from its GitHub CI (release git-release, asset libmpv-v0.42.0-dev-gbcde6b93c-42858938464-x86_64-w64-mingw32-lgpl.zip, SHA-256 78a7cb2dd5c9b0aae6c5ac7c42f6e4c6443caeb1920bb37c27095bfd0efcbf42), built with ci/build-mingw64-full.sh in the FFmpeg-Builds win64-lgpl image. It is configured with -Dgpl=false; FFmpeg is configured without --enable-gpl or --enable-nonfree.

Download the source

Archive	Size	SHA-256
mpv-bcde6b93cca4d128d84e1a60d1a6db2cd81c889e.tar.gz	7.5 MB	`d87d17a4a6fde0c963db1425cae6d4b413788bb935353d3cfedb376acd15cd5f`
ffmpeg-d0b9c63c9fe5.tar.gz	18.1 MB	`954ab9112fb61a10021a798cdc6e3ebb964528239b239074d33a0e31f45fbf70`

Checksums: SHA256SUMS.txt. Licence text: LGPL 2.1 (the app also carries the LGPL 3 and GPL 3 texts).

The same source from the original projects

mpv at commit bcde6b93: github.com/mpv-player/mpv
FFmpeg at commit d0b9c63: code.ffmpeg.org/FFmpeg/FFmpeg
The build scripts and the libraries built into FFmpeg: github.com/BtbN/FFmpeg-Builds (win64-lgpl variant of 10 November 2026)
The mpv project's build: github.com/mpv-player/mpv/releases

Replacing the library

You may replace libmpv-2.dll in the Lumehush install folder with your own build of libmpv from this or a compatible source. Lumehush loads it at start-up.

A copy by email or on disc

For three years from the last time we ship these versions, anyone can ask us for a copy of this source, including the FFmpeg-Builds scripts and library sources, by writing to support@lumehush.com. We'll send a download link at no charge, or a disc for no more than the cost of making and posting it.