new tool ffmpeg tools

I started a new tool. It's for doing ffmpeg stuff in the browser.

I moved the ui from the spritesheet tool, into a shared library. Also started adding a foldable folder, and file inputs.

So far it can generate a video from images, and generate a poster image from a video.

Adding more tools here should be easy (as long as the inputs are already supported in my ui library).

I also want a more generic tool, where you can add any file, run any command, and get the results downloaded.

Link to ffmpeg tools

Screenshot of the ffmpeg tools. It shows a two tools with options on the browser. One for rendering images into a video, and another one for getting a poster image from a video.