Description of problem: gstreamer1-plugins-good requires libvpx >= 1.1 however the spec/build doesn't require that version. If you build without, then usr/share/gstreamer-1.0/presets/GstVP8Enc.prs is not installed and the build fails. I discovered this while trying to build the F18 src rpms for F17. Though not strictly required for the future, its nice if the spec has the proper build requires...
totem-3.6.0-2.fc18,gstreamer1-plugins-bad-free-1.0.1-1.fc18,gstreamer1-plugins-good-1.0.1-1.fc18,gstreamer1-plugins-base-1.0.1-1.fc18,gstreamer1-1.0.1-1.fc18 has been submitted as an update for Fedora 18. https://admin.fedoraproject.org/updates/totem-3.6.0-2.fc18,gstreamer1-plugins-bad-free-1.0.1-1.fc18,gstreamer1-plugins-good-1.0.1-1.fc18,gstreamer1-plugins-base-1.0.1-1.fc18,gstreamer1-1.0.1-1.fc18
Package totem-3.6.0-2.fc18, gstreamer1-plugins-bad-free-1.0.1-1.fc18, gstreamer1-plugins-good-1.0.1-1.fc18, gstreamer1-plugins-base-1.0.1-1.fc18, gstreamer1-1.0.1-1.fc18: * should fix your issue, * was pushed to the Fedora 18 testing repository, * should be available at your local mirror within two days. Update it with: # su -c 'yum update --enablerepo=updates-testing totem-3.6.0-2.fc18 gstreamer1-plugins-bad-free-1.0.1-1.fc18 gstreamer1-plugins-good-1.0.1-1.fc18 gstreamer1-plugins-base-1.0.1-1.fc18 gstreamer1-1.0.1-1.fc18' as soon as you are able to. Please go to the following url: https://admin.fedoraproject.org/updates/FEDORA-2012-15622/totem-3.6.0-2.fc18,gstreamer1-plugins-bad-free-1.0.1-1.fc18,gstreamer1-plugins-good-1.0.1-1.fc18,gstreamer1-plugins-base-1.0.1-1.fc18,gstreamer1-1.0.1-1.fc18 then log in and leave karma (feedback).
totem-3.6.0-2.fc18, gstreamer1-plugins-bad-free-1.0.1-1.fc18, gstreamer1-plugins-good-1.0.1-1.fc18, gstreamer1-plugins-base-1.0.1-1.fc18, gstreamer1-1.0.1-1.fc18 has been pushed to the Fedora 18 stable repository. If problems still persist, please make note of it in this bug report.