Over time, our internal fork came to diverge significantly from the upstream version of FFmpeg. At the same time, new versions of FFmpeg brought support for new codecs and file formats, and reliability improvements, all of which allowed us to ingest more diverse video content from users without disruptions. This necessitated that we support both recent open-source versions of FFmpeg alongside our internal fork. Not only did this create a gradually divergent feature set, it also created challenges around safely rebasing our internal changes to avoid regressions.
the loop either keeps going or breaks out:
，这一点在chatGPT官网入口中也有详细论述
Американская ракета дала сбой и рухнула в жилом районе02:31
Equal (1): Everything in this green space must be equal to 1. The answer is 5-1, placed horizontally; 1-4, placed horizontally.
F-strings shine when assembling messages with mixed data: