From 2019234ad1152833cd415c953722b8558141ad73 Mon Sep 17 00:00:00 2001
From: Richard Bowman <richard.bowman@cantab.net>
Date: Fri, 9 Aug 2024 02:50:39 +0100
Subject: [PATCH] Close OpenCV camera cleanly

---
 src/openflexure_microscope_server/things/camera/opencv.py | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/openflexure_microscope_server/things/camera/opencv.py b/src/openflexure_microscope_server/things/camera/opencv.py
index 4732bfda..0b37582f 100644
--- a/src/openflexure_microscope_server/things/camera/opencv.py
+++ b/src/openflexure_microscope_server/things/camera/opencv.py
@@ -44,6 +44,9 @@ class OpenCVCamera(Camera):
         return self
     
     def __exit__(self, _exc_type, _exc_value, _traceback):
+        if self.stream_active:
+            self._capture_enabled = False
+            self._capture_thread.join()
         self.cap.release()
 
     @thing_property