Hi,
I don't know why, but my tool (britney) was saying that
gst-plugins-base1.0 1.8.0 was is testing but it was not :
,----
| $ grep-excuses gst-plugins-base1.0
| gst-plugins-base1.0 (1.6.3-1 to 1.8.0-1)
| Maintainer: Maintainers of GStreamer packages
| 8 days old (needed 5 days)
| Valid candidate
`----
The only solution is to wait...
Christian