現在 (2022-02-08) Youtube Source お勧めのセット
Youtube Source 3.8 (foo_youtube.dll)
https://fy.3dyd.com/download/
libcurl_7_68 (libcurl.dll)
https://fy.3dyd.com/download/
LAV Filters 0.76
https://github.com/Nevcairiel/LAVFilters/releases
youtube-dl → yt-dlp.exe 2022.01.21
https://github.com/yt-dlp/yt-dlp/releases/tag/2022.01.21
FFmpeg （yt-dlp向けのパッチが当てられたもの）yt-dlp作者
https://github.com/yt-dlp/FFmpeg-Builds

Youtube Data API Key
https://developers.google.com/youtube/registering_an_application?hl=ja