Ffmpeg cannot be installed on pythonista. Blame Apple.
Technically, it might be possible to use the emacriptm port in a webview
here but I've got to think it will be really slow.
Welcome!
This is the community forum for my apps Pythonista and Editorial.
For individual support questions, you can also send an email. If you have a very short question or just want to say hello — I'm @olemoritz on Twitter.