This is what it seems to be. The repo in this thread depends on another package which is the actual bulk of work: https://github.com/ffmpegwasm/ffmpeg.wasm-cor

This is what it seems to be. The repo in this thread depends on another package which is the actual bulk of work: https://github.com/ffmpegwasm/ffmpeg.wasm-core https://github.com/ffmpegwasm/ffmpeg.wasm-core (fork of ffmpeg with emmake in a build script). There definitely does seem to be some other work in there in terms of getting it to actually work though. And tests.