[pitivi] ui.previewer: Use stream Display Aspect Ratio for proper thumbnails.

[Edward Hervey <edwardrv src gnome org>]

commit e0f10ac63b9fe1626f58a0df9f44e3b8e7a667ae
Author: Edward Hervey <bilboed bilboed com>
Date:   Tue May 12 12:24:44 2009 +0200

    ui.previewer: Use stream Display Aspect Ratio for proper thumbnails.
    
    I have no idea what that previous calculation was trying to do.
---
 pitivi/ui/previewer.py |    3 +--
 1 files changed, 1 insertions(+), 2 deletions(-)

diff --git a/pitivi/ui/previewer.py b/pitivi/ui/previewer.py
index 6d5cae5..0ac7584 100644
--- a/pitivi/ui/previewer.py
+++ b/pitivi/ui/previewer.py
@@ -343,8 +343,7 @@ class RandomAccessVideoPreviewer(RandomAccessPreviewer):
 
     def __init__(self, factory, stream_):
         if stream_.dar and stream_.par:
-            self.aspect = ((float(stream_.dar.num) * stream_.par.denom) /
-                (stream_.dar.denom * stream_.par.num))
+            self.aspect = float(stream_.dar)
         RandomAccessPreviewer.__init__(self, factory, stream_)
 
     def _pipelineInit(self, factory, sbin):