Fedora does not contain any proprietary codecs or software. You most likely need to add GStreamer plugins from RPMFusion repos.
# yum install gstreamer-plugins-ugly gstreamer-plugins-bad gstreamer-ffmpeg gstreamer-plugins-bad-nonfree--
Verizon FiOS subscriber since 2005 | Mac owner since 1990 | Fedora user since 2006 | CentOS user since 2007 | "Anyone who is unwilling to learn is entitled to absolutely nothing." - graysonf | EDIT: I seldom post without an edit.