Videos like
- https://{ORGID}.sharepoint.com/personal/{USERID}/_layouts/15/stream.aspx?id={VIDEOID}%2Emp4&ga=1
- https://{ORGID}.sharepoint.com/:v:/p/{USERID}/{VIDEOID}
- Run video from SharePoint corporate account or OneDrive,
- In Chrome open
Web inspectorand inNetworkfilter byvideomanifest - Copy this url
- Run
ffmpeg -i "%URL%" -codec copy outputvideo.mp4


Great answer! I hope it reduces the downloaded file, since my specific situation has 3 video and 4 audio streams. Testing it right now. Thanks!