Graph API Reference /event/videos - Documentation - Facebook for Developers
POST /v9.0/{event-id}/videos HTTP/1.1 Host: graph-video.facebook.com ... 3g2, 3gp, 3gpp, asf, avi, dat, divx, dv, f4v, flv, m2ts, m4v, mkv, mod, mov, mp4, mpe, ...