[ui/gstwidget] Can't modify element properties.
@jeff
Submitted by Jeff F.T. Assigned to Jeff F.T. @jeff
Description
I have a quadcore processor, and I see that x264's PiTiVi render settings allow setting a number of threads. The problem is that I can't set it to anything higher than 1 (FWIW, avidemux and handbrake manage to autodetect and use my 4 cores without problems).
At the same time, the user shouldn't even have to care about that, every codec that supports threading should default to using all available processors.
Imported from https://bugzilla.gnome.org/show_bug.cgi?id=569988