I have also created a draft build setup for ffmpeg-python in <URL: https://salsa.debian.org/pere/ffmpeg-python >. It currently build but I am not convinced it is working. I've asked upstream for a new release, <URL: https://github.com/kkroening/ffmpeg-python/issues/760 >, as the last release was in 2019.
I've also discovered that Whisper depend on triton, <URL: https://github.com/openai/triton >. Since I started looking at this, I have found the Unofficial Policy for Debian & Machine Learning, <URL: https://salsa.debian.org/deeplearning-team/ml-policy >, which seem relevant for how to handle Whisper in Debian. -- Happy hacking Petter Reinholdtsen