* morituri/image/image.py:

Fix AudioLengthTask for the case where we don't have the decoder,
	  by instead of doing get_state, waiting for an ASYNC_DONE or ERROR
	  message.  Properly raise a gst.GError in that case.
	* morituri/common/task.py:
	  Add some debug.
	* morituri/test/test_image_image.py:
	  After this fix, we now catch the TYPE_NOT_FOUND because of an
	  empty stream instead of the later gst.QueryError.
	* morituri/test/test_common_encode.py:
	  Let us know what it is if not a gst.QueryError.

morituri/common/task.py

@@ -359,6 +359,7 @@ class SyncRunner(TaskRunner, ITaskListener):
         # only start the task after going into the mainloop,
         # otherwise the task might complete before we are in it
         gobject.timeout_add(0L, self._startWrap, self._task)
+        self.debug('run loop')
         self._loop.run()
 
         self.debug('done running task %r', task)
@@ -372,6 +373,7 @@ class SyncRunner(TaskRunner, ITaskListener):
         # wrap task start such that we can report any exceptions and
         # never hang
         try:
+            self.debug('start task %r' % task)
             task.start(self)
         except Exception, e:
             # getExceptionMessage uses global exception state that doesn't