befinitiv · September 21, 2021 13:19 · hycday · Nov 7, 2023 · ArpithVed · Nov 8, 2023
diff --git a/cam.py b/cam.py
 #!/usr/bin/python

 import glob
 import socket
 import time
 from threading import Timer
 import picamera
 import RPi.GPIO as GPIO



 SENSOR_PIN = 18
 W = 1296
 H = 972
 FPS = 18

 IP = '192.168.0.21'
 PORT = 5000


 def start_recording():
 	global camera_data
 	global camera
 	camera_data = CameraData()
 	camera.start_recording(camera_data, format='h264')
 	print('start')

 def stop_recording():
 	global camera_data
 	global camera
 	camera.stop_recording()
 	camera_data.stop()
 	print('stop')


 def timer_stop():
 	global stop_timer_running
 	stop_timer_running = False
 	stop_recording()

 last_sensor_event = 0
 stop_timer_running = False

 def sensor_change(pin):
 	global last_sensor_event
 	global stop_timer
 	global stop_timer_running

 	now = time.time()

 	if abs(last_sensor_event - now) > 0.5:
 		start_recording()

 	last_sensor_event = now

 	if stop_timer_running:
 		stop_timer.cancel()

 	stop_timer = Timer(0.5, timer_stop)
 	stop_timer.start()
 	stop_timer_running = True


 GPIO.setmode(GPIO.BCM)
 GPIO.setup(SENSOR_PIN, GPIO.IN)
 GPIO.add_event_detect(SENSOR_PIN, GPIO.BOTH, sensor_change)


 # This class writes data to file and streams it in parallel
 class CameraData(object):
 	def __init__(self):
 		self.client_socket = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
 		self.client_socket.connect((IP, PORT))
 		self.connection = self.client_socket.makefile('wb')
 		self.file = open(self.create_unique_file_name(), 'wb')

 	def create_unique_file_name(self):
 		return '%d.h264' % len(glob.glob('*'))

 	def write(self, s):
 		self.connection.write(s)
 		self.file.write(s)

 	def flush(self):
 		pass

 	def stop(self):
 		self.connection.close()
 		self.client_socket.close()
 		self.file.close()


 # Make a file-like object out of the connection
 try:
 	camera = picamera.PiCamera()
 	camera.resolution = (W, H)
 	camera.framerate = FPS

 	while True:
 		time.sleep(1)
 	#camera.wait_recording(60)
 finally:
 	pass
diff --git a/camera.service b/camera.service
 [Unit]
 Description=Analog camera service
 After=network.target
 StartLimitIntervalSec=0


 [Service]	
 Type=simple
 Restart=always
 RestartSec=1
 User=pi
 ExecStart=/home/pi/cam.py
 WorkingDirectory=/home/pi/videos

 [Install]
 WantedBy=multi-user.target
	#!/usr/bin/python

	import glob
	import socket
	import time
	from threading import Timer
	import picamera
	import RPi.GPIO as GPIO



	SENSOR_PIN = 18
	W = 1296
	H = 972
	FPS = 18

	IP = '192.168.0.21'
	PORT = 5000


	def start_recording():
	global camera_data
	global camera
	camera_data = CameraData()
	camera.start_recording(camera_data, format='h264')
	print('start')

	def stop_recording():
	global camera_data
	global camera
	camera.stop_recording()
	camera_data.stop()
	print('stop')


	def timer_stop():
	global stop_timer_running
	stop_timer_running = False
	stop_recording()

	last_sensor_event = 0
	stop_timer_running = False

	def sensor_change(pin):
	global last_sensor_event
	global stop_timer
	global stop_timer_running

	now = time.time()

	if abs(last_sensor_event - now) > 0.5:
	start_recording()

	last_sensor_event = now

	if stop_timer_running:
	stop_timer.cancel()

	stop_timer = Timer(0.5, timer_stop)
	stop_timer.start()
	stop_timer_running = True


	GPIO.setmode(GPIO.BCM)
	GPIO.setup(SENSOR_PIN, GPIO.IN)
	GPIO.add_event_detect(SENSOR_PIN, GPIO.BOTH, sensor_change)


	# This class writes data to file and streams it in parallel
	class CameraData(object):
	def __init__(self):
	self.client_socket = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
	self.client_socket.connect((IP, PORT))
	self.connection = self.client_socket.makefile('wb')
	self.file = open(self.create_unique_file_name(), 'wb')

	def create_unique_file_name(self):
	return '%d.h264' % len(glob.glob('*'))

	def write(self, s):
	self.connection.write(s)
	self.file.write(s)

	def flush(self):
	pass

	def stop(self):
	self.connection.close()
	self.client_socket.close()
	self.file.close()


	# Make a file-like object out of the connection
	try:
	camera = picamera.PiCamera()
	camera.resolution = (W, H)
	camera.framerate = FPS

	while True:
	time.sleep(1)
	#camera.wait_recording(60)
	finally:
	pass
	[Unit]
	Description=Analog camera service
	After=network.target
	StartLimitIntervalSec=0


	[Service]
	Type=simple
	Restart=always
	RestartSec=1
	User=pi
	ExecStart=/home/pi/cam.py
	WorkingDirectory=/home/pi/videos

	[Install]
	WantedBy=multi-user.target