Fix parent instanciation in the pipe

diff --git a/timeside/core.py b/timeside/core.py
index d821225405d99e7457874a789273edd32aaf882d..6a7ecced16ee0ad84ff381523035c5580ee157b2 100644 (file)
--- a/timeside/core.py
+++ b/timeside/core.py
@@ -272,7 +272,7 @@ class ProcessPipe(object):
     def __ior__(self, other):
         if isinstance(other, Processor):
             for parent in other.parents:
-                self |= parent
+                self |= parent()
             self.processors.append(other)
             other.process_pipe = self
         elif isinstance(other, ProcessPipe):