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  • Script HTTP server
  • Demo
  • Setup
  • Source code
  • Pipeline

Script HTTP server

This demo runs an HTTP server on the device itself. Server will serve you a static image when you connect to it (send a GET request).

Demo

When you run the demo, it will print something similar to
Command Line
1Serving at 192.168.1.193:8080
If you open this IP in the browser (eg. chrome), you will see this:if you click on the here href, you will get a static image. For video stream, you should check out Script MJPEG server.

Setup

Please run the install script to download all required dependencies. Please note that this script must be ran from git context, so you have to download the depthai-python repository first and then run the script
Command Line
1git clone https://github.com/luxonis/depthai-python.git
2cd depthai-python/examples
3python3 install_requirements.py
For additional information, please follow the installation guide.

Source code

Python
C++

Python

Python
GitHub
1#!/usr/bin/env python3
2
3import depthai as dai
4import time
5
6# Start defining a pipeline
7pipeline = dai.Pipeline()
8
9# Define a source - color camera
10cam = pipeline.create(dai.node.ColorCamera)
11# VideoEncoder
12jpeg = pipeline.create(dai.node.VideoEncoder)
13jpeg.setDefaultProfilePreset(cam.getFps(), dai.VideoEncoderProperties.Profile.MJPEG)
14
15# Script node
16script = pipeline.create(dai.node.Script)
17script.setProcessor(dai.ProcessorType.LEON_CSS)
18script.setScript("""
19    from http.server import BaseHTTPRequestHandler
20    import socketserver
21    import socket
22    import fcntl
23    import struct
24
25    PORT = 8080
26    ctrl = CameraControl()
27    ctrl.setCaptureStill(True)
28
29    def get_ip_address(ifname):
30        s = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
31        return socket.inet_ntoa(fcntl.ioctl(
32            s.fileno(),
33            -1071617759,  # SIOCGIFADDR
34            struct.pack('256s', ifname[:15].encode())
35        )[20:24])
36
37    class HTTPHandler(BaseHTTPRequestHandler):
38        def do_GET(self):
39            if self.path == '/':
40                self.send_response(200)
41                self.end_headers()
42                self.wfile.write(b'<h1>[DepthAI] Hello, world!</h1><p>Click <a href="img">here</a> for an image</p>')
43            elif self.path == '/img':
44                node.io['out'].send(ctrl)
45                jpegImage = node.io['jpeg'].get()
46                self.send_response(200)
47                self.send_header('Content-Type', 'image/jpeg')
48                self.send_header('Content-Length', str(len(jpegImage.getData())))
49                self.end_headers()
50                self.wfile.write(jpegImage.getData())
51            else:
52                self.send_response(404)
53                self.end_headers()
54                self.wfile.write(b'Url not found...')
55
56    with socketserver.TCPServer(("", PORT), HTTPHandler) as httpd:
57        node.warn(f"Serving at {get_ip_address('re0')}:{PORT}")
58        httpd.serve_forever()
59""")
60
61# Connections
62cam.still.link(jpeg.input)
63script.outputs['out'].link(cam.inputControl)
64jpeg.bitstream.link(script.inputs['jpeg'])
65
66# Connect to device with pipeline
67with dai.Device(pipeline) as device:
68    while not device.isClosed():
69        time.sleep(1)

Pipeline

React Flow

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