Hardly seemed with a TIL post because it was too easy, but I learned gpt-4 is proficient at building working ffmpeg commands.
I wrote the prompt
convert m4a to mp3 with ffmpeg
and it responsed with
ffmpeg -i input.m4a -codec:v copy -codec:a libmp3lame -q:a 2 output.mp3
Since the problem at hand was low stakes, I just ran the command and, to my satisfaction, it worked. Language models can’t solve every problem but they can be absolutely delightful when they work.