In this post we’re going to show you how you can do video streaming with a Raspberry Pi and a Raspberry Pi Camera – how to stream live video into a web page that you can access in any device that has a browser and is connected to the same network the Pi is. This is useful to apply to a home surveillance camera, for example.
- You should already be familiar with the Raspberry Pi board – read Getting Started with Raspberry Pi
- You should have the Raspbian or Raspbian Lite operating system installed in your Raspberry Pi
- You can read this post for an introduction to the Raspberry Pi Camera V2 module
Enable the Rasperry Pi Camera Module
If you’re using the Raspberry Pi Camera Module, you need to enable the camera software in your Raspberry Pi in order to use it. In the Desktop environment, go to the Raspberry Pi Configuration window under the Preferences menu, open the Interfaces tab and enable the Camera as shown in figure below.
Or, in the Terminal window, type the following command:
[email protected]:~ $ sudo raspi-config
You should see the Raspberry Pi software configuration tool. Select the Interfacing Options:
Enable the camera and reboot your Pi:
Find the Raspberry Pi IP address
To access your video streaming web server, you need to know your Raspberry Pi IP address. For that, use the following command:
[email protected]:~ $ ifconfig
You’ll be given a bunch of information, including your Raspberry Pi IP address. In my case, the RPi IP address is 192.168.1.112.
Connect the camera
Connecting the Raspberry Pi Camera Module is easy. With the Pi shutdown, connect the camera to the Pi CSI port as shown in the following figure. Make sure the camera is connected in the right orientation with the ribbon blue letters facing up as shown in the next figure.
Writing the script
The script for video streaming is shown below. You can find this script at the official PiCamera package documentation.
Create a new file called rpi_camera_surveillance_system.py:
[email protected]:~ $ nano rpi_camera_surveillance_system.py
Copy the following code to your newly created file:
# Web streaming example # Source code from the official PiCamera package # http://picamera.readthedocs.io/en/latest/recipes2.html#web-streaming import io import picamera import logging import socketserver from threading import Condition from http import server PAGE="""\ <html> <head> <title>Raspberry Pi - Surveillance Camera</title> </head> <body> <center><h1>Raspberry Pi - Surveillance Camera</h1></center> <center><img src="stream.mjpg" width="640" height="480"></center> </body> </html> """ class StreamingOutput(object): def __init__(self): self.frame = None self.buffer = io.BytesIO() self.condition = Condition() def write(self, buf): if buf.startswith(b'\xff\xd8'): # New frame, copy the existing buffer's content and notify all # clients it's available self.buffer.truncate() with self.condition: self.frame = self.buffer.getvalue() self.condition.notify_all() self.buffer.seek(0) return self.buffer.write(buf) class StreamingHandler(server.BaseHTTPRequestHandler): def do_GET(self): if self.path == '/': self.send_response(301) self.send_header('Location', '/index.html') self.end_headers() elif self.path == '/index.html': content = PAGE.encode('utf-8') self.send_response(200) self.send_header('Content-Type', 'text/html') self.send_header('Content-Length', len(content)) self.end_headers() self.wfile.write(content) elif self.path == '/stream.mjpg': self.send_response(200) self.send_header('Age', 0) self.send_header('Cache-Control', 'no-cache, private') self.send_header('Pragma', 'no-cache') self.send_header('Content-Type', 'multipart/x-mixed-replace; boundary=FRAME') self.end_headers() try: while True: with output.condition: output.condition.wait() frame = output.frame self.wfile.write(b'--FRAME\r\n') self.send_header('Content-Type', 'image/jpeg') self.send_header('Content-Length', len(frame)) self.end_headers() self.wfile.write(frame) self.wfile.write(b'\r\n') except Exception as e: logging.warning( 'Removed streaming client %s: %s', self.client_address, str(e)) else: self.send_error(404) self.end_headers() class StreamingServer(socketserver.ThreadingMixIn, server.HTTPServer): allow_reuse_address = True daemon_threads = True with picamera.PiCamera(resolution='640x480', framerate=24) as camera: output = StreamingOutput() #Uncomment the next line to change your Pi's Camera rotation (in degrees) #camera.rotation = 90 camera.start_recording(output, format='mjpeg') try: address = ('', 8000) server = StreamingServer(address, StreamingHandler) server.serve_forever() finally: camera.stop_recording()
To save your file press Ctrl+X, type Y and Enter.
Accessing the video streaming
After writing the scrip, you can run it using Python 3. Run the next command:
[email protected]:~ $ python3 rpi_camera_surveillance_system.py
Once the script is running, you can access your video streaming web server at: http://<Your_Pi_IP_Address>:8000. Replace with your own Raspberry Pi IP address, in my case http://192.168.1.112:8000.
You can access the video streaming through any device that has a browser and is connected to the same network that your Pi.
You can use your Pi to monitor your home as a surveillance camera:
I hope this project was useful! You could easily upgrade this home surveillance device to record video or notify you when motion is detected.
We also have a project on how to build a complete CCTV system with the Raspberry Pi using MotionEyeOS. Feel free to take a look.
Like home automation? Learn more about Node-RED, Raspberry Pi, ESP8266 and Arduino with my course: Build a Home Automation System for $100.
Do you have any questions? Leave a comment down below!
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