class Camera()
running = True
def __init__(self,fps=24):
self.emitter = EventEmitter()
self.fps = fps
self.cap = cv2.VideoCapture(0)
self.thread = threading.Thread(target=self.run)
self.thread.daemon = True
self.thread.start()
def run(self):
capturePeriodSecs = 1.0 / self.fps
while self.Running == True:
try:
self.cap_frame()
except Exception as error:
print ("error with capturing frames: ", error)
time.sleep(capturePeriodSecs)
def onNewFrame(self,callback):
self.emitter.on('frame', callback)
def removeOnNewFrameListener(self,callback):
self.emitter.remove_emitter_listener('frame', callback)
def stop(self):
self.running = False
def cap_frame(self):
f,img = self.cap.read()
self.latest_frame = img
self.emitter.emit('frame', img)
