Bell River Video Tools

@ffmpeg/ffmpeg 0.12.15 — MIT wrapper, https://github.com/ffmpegwasm/ffmpeg.wasm
@ffmpeg/core 0.12.10 — FFmpeg WebAssembly build, includes GPL components such as x264. GPL-2.0-or-later (per official @ffmpeg/core package metadata). Source, library versions and reproducible build scripts: https://github.com/ffmpegwasm/ffmpeg.wasm/tree/v0.12.15 and https://github.com/ffmpegwasm/ffmpeg.wasm-core
Pinned official npm tarball URLs and SHA-512 integrity are recorded in manifest.json. Shipped runtime bytes are unmodified.
Noto Sans — SIL Open Font License 1.1; font-provenance.json records the official source and digest.
The four-second testsrc2/sine sample was generated for Bell River using FFmpeg.
The original unmodified WASM is split into two transport files for the host asset-size limit; wasm-manifest.json records the original SHA-256 and each chunk digest. The loader reassembles and verifies the bytes.