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

GPIO.setmode(GPIO.BCM)

GPIO.setup(18, GPIO.IN, pull_up_down=GPIO.PUD_UP)

while True:
    input_state = GPIO.input(18)
    if input_state == False:
        print('Button Pressed')
        proc=Popen(['omxplayer','test1.3gp'], stdout=PIPE)
        time.sleep(0.2)