From bbdbb6b7078e936396e76baf542f5f8615ffc9fa Mon Sep 17 00:00:00 2001
From: "J.A. de Jong" <j.a.dejong@ascee.nl>
Date: Thu, 13 Sep 2018 15:53:46 +0200
Subject: [PATCH] Bugfix with closing software when running real time spectra
 monitor.

---
 lasp/lasp_avstream.py | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/lasp/lasp_avstream.py b/lasp/lasp_avstream.py
index d813afd..53134cd 100644
--- a/lasp/lasp_avstream.py
+++ b/lasp/lasp_avstream.py
@@ -50,6 +50,12 @@ class AvStream:
         self._audiothread = None
         self._videothread = None
 
+    def nCallbacks(self):
+        """
+        Returns the current number of installed callbacks
+        """
+        return len(self._callbacks)
+
     def addCallback(self, cb):
         """
         Add as stream callback to the list of callbacks