Where this decoder came from
============================

libheif.js and libheif.wasm in this folder are byte-for-byte the files
libheif-wasm/libheif.js and libheif-wasm/libheif.wasm from:

  npm package : libheif-js 1.23.2
  tarball     : https://registry.npmjs.org/libheif-js/-/libheif-js-1.23.2.tgz
  shasum      : 185691289ccfefe813e4b7f84ac4f84f24abb064
  source repo : https://github.com/catdad-experiments/libheif-js
  commit      : 6ca00b818c0ff51cb2a5c75b9ce97d708083335a

That package does not compile libheif itself. It downloads a prebuilt
Emscripten binary, and its scripts/install.js at the commit above pins:

  https://github.com/catdad-experiments/libheif-emscripten/releases/download/v1.23.2/libheif.tar.gz

which is the exact build of libheif, and of the libde265 decoder inside it,
that this site serves. Licence: LGPL-3.0 (see LICENSE and COPYING).

Checked on 2026-10-02 by comparing the SHA-256 of both files against the
installed package.