[Export Settings] Filter unusable muxers
@denkpadje
Submitted by denkpadje Assigned to denkpadje @denkpadje
Description
When selecting a container that gives an empty audio and video codec, clicking OK results in an IndexError:
Traceback (most recent call last):
File "/usr/lib/pitivi/python/pitivi/ui/mainwindow.py", line 571, in _settingsButtonClickedCb
self.settings = dialog.getSettings()
File "/usr/lib/pitivi/python/pitivi/ui/exportsettingswidget.py", line 341, in getSettings
self.setwidget.updateSettings()
File "/usr/lib/pitivi/python/pitivi/ui/exportsettingswidget.py", line 315, in updateSettings
vencoder = self.validvencoders[self.vcodeccbox.get_active()].get_name()
IndexError: list index out of range
Imported from https://bugzilla.gnome.org/show_bug.cgi?id=547095