[bug#64732] [PATCH v3 1/2] gnu: Add python-ffmpeg-python.

[Parnikkapore]

Hi all,

jgart suggested on the GitHub thread that we pick a new commit from upstream 
instead of patching the release.

Should we use 
https://github.com/kkroening/ffmpeg-python/commit/6189cd6861a90f6f52e6a8ba2db0fada54134194
 (the commit that fixes the issue upstream) or 
https://github.com/kkroening/ffmpeg-python/commit/df129c7ba30aaa9ffffb81a48f53aa7253b0b4e6
 (the last ever commit before the project went silent)?