Comment 18 for bug 508123

Inded. Just a question. Have you the Medibuntu repository ?
Have you check your dependencies like here :http://openshotusers.com/forum/viewtopic.php?f=12&t=33&start=0
With the evolution of the project, Some dependencies have changing (removing, adding).
You use the 1.1.0. alpha2, well but i don't know if the patch about the x264 problem is inside or not because he resolves this sort of problem.
In the window preferencies you should look the work of Andy who have done a entry about the formats/codecs installed reconnize by Openshot in your systeme. Are they inside (in the list) ?
If no, try to install the patch following :
update the file
bzr pull
cd openshot
Download the patch by:
wget http://launchpadlibrarian.net/39067639/render_options_for_x264.patch (or by another way)
add the patch by :
patch -p 0 < render_options_for_x264.patch
after
python setup.py build
cd bin
./openshot
Thanks