Thanks.
After i have installed:
py-gstreamer
Another problem when i tried to start the applications:
$ pitivi
Couldn't set locale !, reverting to C locale
I have a screen with this message:
gnonlin plugin not found
$ pkg_info | grep gstreamer
gstreamer-0.10.12p0 streaming media framework - core
gstreamer-plugins-base-0.10.12p0 multimedia framework - plugins base
py-gstreamer-0.10.9 Python bindings for gstreamer
Now i install gstreamer-plugins-good-0.10.5p2 and i have this error:
Make sure you have installed gst-plugins-good