From 226e787cc2916b43b4e9acc8d6c6e1db0db4215d Mon Sep 17 00:00:00 2001
From: Joel Collins <joel@jtcollins.net>
Date: Wed, 16 Jan 2019 14:05:47 +0000
Subject: [PATCH] Catch exceptions if pausing an inactive stream

---
 openflexure_microscope/camera/pi.py | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/openflexure_microscope/camera/pi.py b/openflexure_microscope/camera/pi.py
index dbe2961a..1529ee0e 100644
--- a/openflexure_microscope/camera/pi.py
+++ b/openflexure_microscope/camera/pi.py
@@ -359,7 +359,10 @@ class StreamingCamera(BaseCamera):
             resolution = self.config['image_resolution']
 
         # Stop the camera video recording on port 1
-        self.camera.stop_recording(splitter_port=splitter_port)
+        try:
+            self.camera.stop_recording(splitter_port=splitter_port)
+        except picamera.exc.PiCameraNotRecording:
+            logging.info("Not recording on splitter_port {}".format(splitter_port))
 
         # Increase the resolution for taking an image
         self.camera.resolution = resolution