def receive_packets(port): sock = socket.socket(socket.AF_INET, socket.SOCK_DGRAM) # 绑定socket到指定地址和端口 sock.bind(('localhost', port)) print('等待数据包...') while True: # 接收数据 data, addr = sock.recvfrom(1024) print('收到数据{},源IP{},源端口{}'.format(data,addr[0],addr[1]) ) src_port = 5050 receive = threading.Thread(target=receive_packets, args=(src_port)) receive.start()

在这段代码中，args 参数应该传递一个元组而不是单个值。你可以将参数改为 `(src_port,)`。

修改后的代码如下：

def receive_packets(port):
    sock = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
    sock.bind(('localhost', port))
    print('等待数据包...')
    while True:
        data, addr = sock.recvfrom(1024)
        print('收到数据{},源IP{},源端口{}'.format(data,addr[0],addr[1]))

src_port = 5050
receive = threading.Thread(target=receive_packets, args=(src_port,))
receive.start()

这样就能正确地启动线程并传递参数了。

相关问题

在dalsa相机提供的GigE-V-Framework_aarch64_2.20.0.0181.tar.gz的sdk中，我想把相机数据取出通过udo协议发送出去怎么做，代码

以下是一个示例代码，它使用GigE-V-Framework SDK将图像数据从相机中提取出来，并通过UDP协议发送出去。请注意，这只是一个示例代码，您需要根据您的具体情况进行修改和适配。

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <arpa/inet.h>
#include <sys/socket.h>
#include <time.h>
#include <unistd.h>
#include <Dalsa/GevApi.h>
#include <Dalsa/GigEVision.h>

#define MAX_PACKET_SIZE 1472 // Max UDP packet size
#define PORT 8888 // Port number for UDP communication

int main(int argc, char *argv[]) {
    // Initialize GigE-V Framework
    GevApiInitialize();

    // Open camera
    GEV_DEVICE_INTERFACE device;
    GEV_CAMERA_HANDLE handle;
    GEV_DEVICE_INFO device_info;
    memset(&device, 0, sizeof(device));
    memset(&handle, 0, sizeof(handle));
    memset(&device_info, 0, sizeof(device_info));
    device.macLow = 0x10;
    device.macHigh = 0x00;
    handle = GevOpenCamera(&device, GevExclusiveMode);
    if (handle == NULL) {
        printf("Failed to open camera.\n");
        return -1;
    }

    // Get camera information
    GevGetCameraInfo(handle, &device_info);

    // Configure camera
    GevSetFeatureValue(handle, "AcquisitionMode", "SingleFrame");
    GevSetFeatureValue(handle, "TriggerMode", "Off");
    GevSetFeatureValue(handle, "PixelFormat", "Mono8");

    // Get image size
    int width = 0;
    int height = 0;
    GevGetFeatureValue(handle, "Width", &width);
    GevGetFeatureValue(handle, "Height", &height);

    // Create UDP socket
    int sockfd;
    struct sockaddr_in servaddr;
    sockfd = socket(AF_INET, SOCK_DGRAM, 0);
    memset(&servaddr, 0, sizeof(servaddr));
    servaddr.sin_family = AF_INET;
    servaddr.sin_addr.s_addr = inet_addr("127.0.0.1"); // IP address of the receiver
    servaddr.sin_port = htons(PORT);

    // Allocate memory for image buffer
    int image_size = width * height;
    uint8_t *image_buffer = (uint8_t *) malloc(image_size);

    // Start image acquisition
    GevStartTransfer(handle, -1);

    // Loop for image acquisition and UDP transmission
    while (1) {
        int status = GevWaitForNextImage(handle, &image_buffer, -1);
        if (status == GEVLIB_OK) {
            // Send image via UDP
            int num_packets = (image_size + MAX_PACKET_SIZE - 1) / MAX_PACKET_SIZE; // Calculate the number of packets needed to transmit the image
            int last_packet_size = image_size - (num_packets - 1) * MAX_PACKET_SIZE; // Calculate the size of the last packet
            uint8_t *packet_buffer = (uint8_t *) malloc(MAX_PACKET_SIZE);
            for (int i = 0; i < num_packets; i++) {
                int packet_size = (i == num_packets - 1) ? last_packet_size : MAX_PACKET_SIZE;
                memcpy(packet_buffer, image_buffer + i * MAX_PACKET_SIZE, packet_size);
                int bytes_sent = sendto(sockfd, packet_buffer, packet_size, 0, (struct sockaddr *) &servaddr, sizeof(servaddr));
                if (bytes_sent != packet_size) {
                    printf("Error sending UDP packet.\n");
                }
            }
            free(packet_buffer);
        } else {
            printf("Error getting image.\n");
        }
    }

    // Stop image acquisition
    GevStopTransfer(handle);

    // Free memory
    GevFreeImageBuffer(&image_buffer);
    GevCloseCamera(&handle);
    GevApiUninitialize();

    return 0;
}

python socket统计丢包率

要统计丢包率，您可以使用Python的socket模块来发送和接收数据包，并通过检查接收到的数据包来计算丢包率。下面是一个简单的示例代码：

import socket

def calculate_packet_loss_rate(server_ip, server_port, num_packets):
    # 创建UDP socket
    sock = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)

    # 设置超时时间为1秒
    sock.settimeout(1)

    # 发送和接收数据包
    sent_packets = 0
    received_packets = 0
    for i in range(num_packets):
        # 发送数据包
        sock.sendto(b'', (server_ip, server_port))
        sent_packets += 1

        try:
            # 等待接收数据包
            data, addr = sock.recvfrom(1024)
            received_packets += 1
        except socket.timeout:
            # 超时，数据包丢失
            pass

    # 计算丢包率
    packet_loss_rate = (sent_packets - received_packets) / sent_packets * 100

    # 关闭socket
    sock.close()

    return packet_loss_rate

# 示例用法
server_ip = '127.0.0.1'  # 服务器IP地址
server_port = 1234  # 服务器端口号
num_packets = 100  # 发送的数据包数量

packet_loss_rate = calculate_packet_loss_rate(server_ip, server_port, num_packets)
print(f'Packet loss rate: {packet_loss_rate}%')

以上代码使用UDP socket发送和接收数据包，通过计算发送和接收的数据包数量的差异来计算丢包率。您可以将示例代码中的服务器IP地址、端口号和发送的数据包数量替换为实际的值来进行测试。请注意，这只是一个简单的示例，实际的网络环境可能会受到许多因素的影响，如网络延迟、拥塞等，可能会导致丢包率的不准确性。