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95 lines
2.5 KiB
Python
95 lines
2.5 KiB
Python
# This work is licensed under the MIT license.
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# Copyright (c) 2013-2023 OpenMV LLC. All rights reserved.
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# https://github.com/openmv/openmv/blob/master/LICENSE
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#
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# MJPEG Streaming
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#
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# This example shows off how to do MJPEG streaming to a FIREFOX webrowser
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# Chrome, Firefox and MJpegViewer App on Android have been tested.
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# Connect to the IP address/port printed out from ifconfig to view the stream.
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import sensor
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import time
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import network
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import socket
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SSID = "" # Network SSID
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KEY = "" # Network key
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HOST = "" # Use first available interface
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PORT = 8080 # Arbitrary non-privileged port
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# Init sensor
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sensor.reset()
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sensor.set_framesize(sensor.QVGA)
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sensor.set_pixformat(sensor.RGB565)
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# Init wlan module and connect to network
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wlan = network.WLAN(network.STA_IF)
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wlan.active(True)
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wlan.connect(SSID, KEY)
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while not wlan.isconnected():
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print('Trying to connect to "{:s}"...'.format(SSID))
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time.sleep_ms(1000)
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# We should have a valid IP now via DHCP
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print("WiFi Connected ", wlan.ifconfig())
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# Create server socket
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s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
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s.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, True)
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# Bind and listen
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s.bind([HOST, PORT])
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s.listen(5)
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# Set server socket to blocking
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s.setblocking(True)
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def start_streaming(s):
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print("Waiting for connections..")
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client, addr = s.accept()
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# set client socket timeout to 5s
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client.settimeout(5.0)
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print("Connected to " + addr[0] + ":" + str(addr[1]))
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# Read request from client
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data = client.recv(1024)
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# Should parse client request here
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# Send multipart header
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client.sendall(
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"HTTP/1.1 200 OK\r\n"
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"Server: OpenMV\r\n"
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"Content-Type: multipart/x-mixed-replace;boundary=openmv\r\n"
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"Cache-Control: no-cache\r\n"
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"Pragma: no-cache\r\n\r\n"
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)
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# FPS clock
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clock = time.clock()
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# Start streaming images
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# NOTE: Disable IDE preview to increase streaming FPS.
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while True:
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clock.tick() # Track elapsed milliseconds between snapshots().
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frame = sensor.snapshot()
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cframe = frame.to_jpeg(quality=35, copy=True)
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header = (
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"\r\n--openmv\r\n"
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"Content-Type: image/jpeg\r\n"
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"Content-Length:" + str(cframe.size()) + "\r\n\r\n"
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)
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client.sendall(header)
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client.sendall(cframe)
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print(clock.fps())
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while True:
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try:
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start_streaming(s)
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except OSError as e:
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print("socket error: ", e)
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# sys.print_exception(e)
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