The Warp terminal[1] is excellent for this type of thing. In agent mode, you just describe what you want to have happen and it generates the proper command(s) (that you can approve before running).

I use it a lot to convert videos and turn a folder of tiff files into pngs at 1/2 size, etc. It's great at generating FFMEG commands and chaining the right tools together.

[1] https://www.warp.dev

I was going to mention Warp here as well. It is fantastic when it comes to almost anything in the terminal. It has caused me to use the terminal a lot more on all of my computers because I don't have to spend a bunch of time poking around on Google to find the command to run.

I have used it for ffmpeg and then a lot of other slightly more complex commands. A recent one from the other day was gathering up all of the .epub documents in a directory tree, renaming them to the name of the directory they were in, and then placing them all in one single directory. That would have been a whole project for me, and Warp gave me the command with just that description. Any LLM interface would have done the same, but Warp just let me hit "Enter" and run it, no need to copy and paste.

Also in zed you can hit ctl-enter in terminal or in code and get the same