JavaFX 8 Fedora 21 and ffmpeg

Hi all, I'm curious to see if anyone has had any luck with JavaFX (as bundled with Oracle's JDK 8) on Fedora 21? It requires libav{codec,format}.so.53, which were provided by ffmpeg in F-20 but the much newer version in F-21 has only the libav{codec,format}.so.56 libraries. I see that there's an ffmpeg-compat package, but that provides libav{codec,format}.so.52. Any suggestions for the best way forward to resolve this issue? Paul.