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get a lock when copying frame for mjpeg stream

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blakeblackshear 2019-02-17 11:54:40 -06:00
parent b67f323215
commit 8525f05f29
1 changed files with 3 additions and 1 deletions
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4
detect_objects.py
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@ -266,8 +266,10 @@ def main():
time.sleep(0.2) time.sleep(0.2)
# make a copy of the current detected objects # make a copy of the current detected objects
detected_objects = DETECTED_OBJECTS.copy() detected_objects = DETECTED_OBJECTS.copy()
# make a copy of the current frame # lock and make a copy of the current frame
frame_lock.aquire()
frame = frame_arr.copy() frame = frame_arr.copy()
frame_lock.release()
# convert to RGB for drawing # convert to RGB for drawing
frame = cv2.cvtColor(frame, cv2.COLOR_BGR2RGB) frame = cv2.cvtColor(frame, cv2.COLOR_BGR2RGB)
# draw the bounding boxes on the screen # draw the bounding boxes on the screen