python - omxplayer 在程序终止时播放

Question

我对 Python 和 Raspberry Pi 很陌生，所以如果问题很幼稚，请原谅。我正在编写一个程序，它在由 PIR 传感器触发时播放视频。感应到的触发器是可见的，但是当我终止/停止 Thonny 中的程序时，视频会播放。

import os
import sys
from subprocess import Popen
import RPi.GPIO as GPIO
import time

movie1 = ("/home/pi/Desktop/2.mp4")
movie2 = ("/home/pi/Desktop/1.mp4") 

pir_sensor = 11

GPIO.setmode(GPIO.BOARD)

GPIO.setup(pir_sensor, GPIO.IN)

current_state = 0
try:
    while True:
        time.sleep(0.1)
        current_state = GPIO.input(pir_sensor)
        if current_state == 1:
            #print("GPIO pin %s is %s" % (pir_sensor, current_state))
            os.system('killall omxplayer.bin')
            omxc = Popen(['omxplayer', '-b', movie1])

except KeyboardInterrupt:
    pass
finally:
    GPIO.cleanup()

视频应在触发时立即播放。