[pitivi] previewers_: Allways set WaveformPreviewer.samples

[Thibault Saunier <tsaunier src gnome org>]

commit 338f2d06d926418fdb66956dd8d6ff042ad4b6b0
Author: Thibault Saunier <tsaunier gnome org>
Date:   Wed Feb 10 22:09:19 2016 +0100

    previewers_: Allways set WaveformPreviewer.samples
    
    Reviewed-by: Alex Băluț <alexandru balut gmail com>
    Differential Revision: https://phabricator.freedesktop.org/D760

 pitivi/timeline/previewers.py |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)
---
diff --git a/pitivi/timeline/previewers.py b/pitivi/timeline/previewers.py
index f85f532..fde117d 100644
--- a/pitivi/timeline/previewers.py
+++ b/pitivi/timeline/previewers.py
@@ -186,6 +186,7 @@ class WaveformPreviewer(PreviewerBin):
         self.uri = None
         self.wavefile = None
         self.passthrough = False
+        self.samples = []
         self.nSamples = 0
 
     def do_get_property(self, prop):