[pitivi: 7/14] timeline: always set caps on FixSeekStart:sink.

[Edward Hervey <edwardrv src gnome org>]

commit e6f3cb1425ff364d85f59f73b7f51b6de929b882
Author: Alessandro Decina <alessandro d gmail com>
Date:   Mon Sep 27 17:30:52 2010 +0200

    timeline: always set caps on FixSeekStart:sink.
    
    This is needed so get_pad_for_stream, called once we ghost FixSeekStart:src,
    knows what stream to instantiate.

 pitivi/factories/timeline.py |    9 ++++++---
 1 files changed, 6 insertions(+), 3 deletions(-)
---
diff --git a/pitivi/factories/timeline.py b/pitivi/factories/timeline.py
index 90f7484..ea91576 100644
--- a/pitivi/factories/timeline.py
+++ b/pitivi/factories/timeline.py
@@ -138,9 +138,12 @@ class TimelineSourceFactory(SourceFactory):
         caps = pad.props.caps
         if caps is None:
             caps = pad.get_caps()
-        if caps.is_fixed():
-            seek.get_pad("sink").set_caps(caps)
-            ghost.set_caps(caps)
+        if not caps.is_fixed():
+            # still set some caps so get_stream_for_pad knows what kind of
+            # stream this is
+            caps = gst.Caps(caps[0].get_name())
+        seek.get_pad("sink").set_caps(caps)
+        ghost.set_caps(caps)
         ghost.set_active(True)
         self.ghosts[pad_id] = ghost
         self.seek_checkers[pad_id] = seek