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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

This example requires the DepthAI v3 API, see installation instructions.

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

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