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  • mjpeg_streamer 这个程序为何运行出错?



    • 0_1592745274140_p1.JPG这个程序为何运行出错?0_1592745359902_p2.JPG



    • SSID和KEY应该填写你的Wi-Fi路由器的名字和密码。



    • https://singtown.com/learn/49596/

      看视频,你应该运行ap的代码。



    • AP的可以运行,我是问这个为什么不能运行?



    • 是我的路由名和密码啊!



    • 因为这个代码没有及时更新,s.settimeout(0) 改为了s.setblocking(True)

      下面的代码是可以正常运行的。

      # MJPEG Streaming
      #
      # This example shows off how to do MJPEG streaming to a FIREFOX webrowser
      # Chrome, Firefox and MJpegViewer App on Android have been tested.
      # Connect to the IP address/port printed out from ifconfig to view the stream.
      
      import sensor, image, time, network, usocket, sys
      
      SSID =''     # Network SSID
      KEY  =''     # Network key
      HOST =''     # Use first available interface
      PORT = 8080  # Arbitrary non-privileged port
      
      # Reset sensor
      sensor.reset()
      
      # Set sensor settings
      sensor.set_contrast(1)
      sensor.set_brightness(1)
      sensor.set_saturation(1)
      sensor.set_gainceiling(16)
      sensor.set_framesize(sensor.QQVGA)
      sensor.set_pixformat(sensor.GRAYSCALE)
      
      # Init wlan module and connect to network
      print("Trying to connect... (may take a while)...")
      wlan = network.WINC()
      wlan.connect(SSID, key=KEY, security=wlan.WPA_PSK)
      
      # We should have a valid IP now via DHCP
      print(wlan.ifconfig())
      
      # Create server socket
      s = usocket.socket(usocket.AF_INET, usocket.SOCK_STREAM)
      
      # Bind and listen
      s.bind([HOST, PORT])
      s.listen(5)
      
      # Set server socket to blocking
      s.setblocking(True)
      
      def start_streaming(s):
          print ('Waiting for connections..')
          client, addr = s.accept()
          # set client socket timeout to 2s
          client.settimeout(2.0)
          print ('Connected to ' + addr[0] + ':' + str(addr[1]))
      
          # Read request from client
          data = client.recv(1024)
          # Should parse client request here
      
          # Send multipart header
          client.send("HTTP/1.1 200 OK\r\n" \
                      "Server: OpenMV\r\n" \
                      "Content-Type: multipart/x-mixed-replace;boundary=openmv\r\n" \
                      "Cache-Control: no-cache\r\n" \
                      "Pragma: no-cache\r\n\r\n")
      
          # FPS clock
          clock = time.clock()
      
          # Start streaming images
          # NOTE: Disable IDE preview to increase streaming FPS.
          while (True):
              clock.tick() # Track elapsed milliseconds between snapshots().
              frame = sensor.snapshot()
              cframe = frame.compressed(quality=35)
              header = "\r\n--openmv\r\n" \
                       "Content-Type: image/jpeg\r\n"\
                       "Content-Length:"+str(cframe.size())+"\r\n\r\n"
              client.send(header)
              client.send(cframe)
              print(clock.fps())
      
      while (True):
          try:
              start_streaming(s)
          except OSError as e:
              print("socket error: ", e)
              #sys.print_exception(e)