[pitivi] Generate the available combinations of muxers and encoders only once in ExportSettings

[Thibault Saunier <tsaunier src gnome org>]

commit 01ee1102adeb1cd9c53a355b54cf9ff988800b5c
Author: Alex BÄ?luÈ? <alexandru balut gmail com>
Date:   Mon May 2 09:36:29 2011 +0200

    Generate the available combinations of muxers and encoders only once in ExportSettings

 pitivi/settings.py |    3 ++-
 1 files changed, 2 insertions(+), 1 deletions(-)
---
diff --git a/pitivi/settings.py b/pitivi/settings.py
index a236766..cb39d29 100644
--- a/pitivi/settings.py
+++ b/pitivi/settings.py
@@ -461,6 +461,8 @@ class ExportSettings(Signallable, Loggable):
     # TODO: initialize this cache from the project file?
     factory_settings_cache = {}
 
+    muxers, aencoders, vencoders = available_combinations()
+
     def __init__(self, **unused_kw):
         Loggable.__init__(self)
         self.videowidth = 720
@@ -476,7 +478,6 @@ class ExportSettings(Signallable, Loggable):
         self.containersettings = self.factory_settings_cache.get(self.muxer, {})
         self.acodecsettings = self.factory_settings_cache.get(self.aencoder, {})
         self.vcodecsettings = self.factory_settings_cache.get(self.vencoder, {})
-        self.muxers, self.aencoders, self.vencoders = available_combinations()
 
     def copy(self):
         ret = ExportSettings()