zmq进行图片的传输

原始数据

cv::Mat mat

编码

vector<uchar> data_encode;cv::imencode(".jpg",mat,data_encode);

传输

zmq::context_t context(1);zmq::socket_t skt(context,ZMQ_PUB);skt.bind("tcp://*:20000);zmq::message_t msg(data_encode.size());memcpy(msg.data(),data_encode.data(),data_encode.size());skt.send(msg);

转发（根据实际情况中转了一下）

zmq::context_t context(1);zmq::socket_t socket_get(context,ZMQ_SUB);socket_get.setsockopt(ZMQ_SUBSCRIBE,"",0);socket_get.connect("tcp://127.0.0.1:20000");zmq::socket_t socket_pos(context,ZMQ_PUB);socket_pos.setsockeopt(ZMQ_CONFLATE,1);//缓冲消息条数为1，需要实时传输图片时设置。将消息队列改装了消息栈。。哈哈socket_pos.bind("tcp://*:20001");while(true){    zmq::message_t request;    socket_get.recv(&request);    if(request.size()==0)        break;    socket_pos.send(request);}

接收

@Overridepublic void run(){    ZMQ.Context context = ZMQ.context(1);    ZMQ.Socket socket = context.socket(ZMQ.SUB);    socket.subscribe("");    socket.setConflate(true);    socket.connect("tcp://192.168.xx.xx:200001");    while(!Thread.currenThread().isInterrupted()){        byte[] msg = socket.recv(0);        UIThreadHandler.sendMessage(....);    }    socket.close();    context.term();}

显示

    private void clientMessageReceived(byte[] msgBody){        ByteArrayInputStream inputStream = new ByteArrayInputStream(msgBody);        Bitmap bitmap = BitmapFactory.decodeStream(inputStream);        imageView.setImageBitmap(bitmap);}