Question

我正在尝试使用MQTT来接收消息，同时使用流HTTP服务器将我的picamera流到同一文件中的5000端口上。这导致我的MQTT相当不稳定，并且无法及时接收消息。我可以知道有人对此有解决方案吗？谢谢。

MQTT代码

def on_connect(client,rc):
    if rc == 0:
        global Connected                
        Connected = True                 
        client.subscribe("picam/show")

def on_message(client, userdata, message):
    global capture_image
    data = message.payload.decode("utf-8").replace("'", '"')
    d = json.loads(data)

    if d["action"] == "take pic":
        try:
            capture_image()
        except Exception as e:
            print(e)

client = mqttClient.Client("picam")  
client.on_connect= on_connect  
client.connect(broker_address, port=1884)      

# edited here to change loop_forever to loop_start 
client.loop_start()

流HTTP代码

output = StreamingOutput()
camera.start_recording(output, format='mjpeg')
try:
    address = ('', 5000)
    server = StreamingServer(address, StreamingHandler)
    server.serve_forever()
finally:
    camera.stop_recording()

Answer 1

设法通过使用线程来解决这个问题：）！万一有人也遇到这个问题

将MQTT与HTTP流服务器一起使用

1 个答案: