With gnome-media-2.13.5-2, and a system fully upgraded to yesterday's Rawhide, XV and video playback work fine with Totem and others, but when I run the gstreamer-properties preferences dialog and go to the video tab, it segfaults each time I press "Test" when "XWindows ..." or "Custom" (xvimagesink) are selected. Others (SDL...) work fine. FYI, this is on X86_64, I haven't tested i386 or ppc. If you are unable to repoduce the problem, just let me know and I'll take the time to install all the proper debuginfo packages, gdb etc. and provide a useful backtrace.
Works fine here with gnome-media-2.13.91 on i386. Will test on x86_64 tomorrow. Do you still see problems ?
Don't bother... I've tested again, and it's working now, so it must have been fixed with a Rawhide change since I reported it.