[MrThoughtful]

I think there is some kind of misunderstanding here.

You say "an environment with React". My environment is the browser.

I don't know how one is supposed to run that nameless function on that page. What I am looking for is a simple, complete example in HTML that can run standalone when opened in the browser. Without any server side processing involved.

[jmtulloss]

If you want to copy/paste, try taking the first example and asking the llm to refactor the code to run in a browser with no dependencies. It should be able to strip out the react stuff, or at least get it close and you can fix it from there.

[MrThoughtful]

I have tried that a bunch of times and a bunch of ways and did not get ffmpeg to work.

It might have to do with these two strange comments at the top:

    // import { FFmpeg } from '@ffmpeg/ffmpeg';
    // import { fetchFile, toBlobURL } from '@ffmpeg/util';

The rest of the code seems to assume "FFmpeg", "fetchFile" and "toBlobUrl" are somehow magically available. Neither me nor any LLM have yet managed to get these into existance.