[pitivi] Implement AudioEffectFactory _makeBin

[Edward Hervey <edwardrv src gnome org>]

commit 3c9ff1cd53083501f59257a0db2bed2ac99d0d16
Author: Thibault Saunier <tsaunier src gnome org>
Date:   Sat May 22 20:24:12 2010 -0400

    Implement AudioEffectFactory _makeBin

 pitivi/factories/operation.py |    3 ++-
 1 files changed, 2 insertions(+), 1 deletions(-)
---
diff --git a/pitivi/factories/operation.py b/pitivi/factories/operation.py
index e69cbdf..370114e 100644
--- a/pitivi/factories/operation.py
+++ b/pitivi/factories/operation.py
@@ -73,8 +73,9 @@ class AudioEffectFactory (EffectFactory):
     def __init__ (self, effect, name=''):
         TransformFactory.__init__(self, name)
         self._effect = effect
+
     def _makeBin (self, *args):
-        pass
+        return gst.element_factory_make(self._effect)
 
 class StreamModifierFactory(TransformFactory):
     """