Unmodified upstream source snapshots for the FFmpeg 0.12.10 core and HEIC decoder shipped with these browser tools. The ffmpeg.wasm v12.15 Dockerfile and build/ folder document the single-thread build, FFmpeg n5.1.4 patches and dependency versions. Moving dependency branches are snapshotted no later than the published core release (7 January 2025). Compiler/system libraries are supplied by the Emscripten SDK named in that Dockerfile. Each archive retains its own license and copyright notices. The HEIC tool source documents its libheif build.
