FFmpeg is the backend of YouTube | 🗖 nosplit | ↑ parent "FFmpeg" | 34

FFmpeg is likely the backend of YouTube through reverse engineering: https://streaminglearningcenter.com/blogs/youtube-uses-ffmpeg-for-encoding.html (archive)

On Quora: https://www.quora.com/What-does-YouTube-use-for-encoding-video/answer/Ciro-Santilli