WhyCan Forum(哇酷开发者社区)

#include <unistd.h>//Linux系统下网络通讯的头文件集合
#include <sys/types.h>
#include <sys/socket.h>
#include <netdb.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <ctype.h>
#include <errno.h>
#include <malloc.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#include <sys/ioctl.h>
#include <stdarg.h>
#include <fcntl.h>
#include <fcntl.h>
#include <iostream>
#include <opencv2/opencv.hpp>  
#include <opencv2/imgproc/imgproc.hpp> 


using namespace cv;
using namespace std;

enum
{
	PORT = 8888
};
int main(int argc, char** argv)
{
	
	int m_sockClient;
	if ((m_sockClient = socket(AF_INET, SOCK_DGRAM, 0)) < 0)    //创建socket句柄，采用UDP协议
	{
		printf("create socket error: %s(errno: %d)\n", strerror(errno), errno);
		return -1;
	}
	sockaddr_in m_servaddr;
	memset(&m_servaddr, 0, sizeof(m_servaddr));  //初始化结构体
	m_servaddr.sin_family = AF_INET;           //设置通信方式
	m_servaddr.sin_port = htons(PORT);         //设置端口号
        m_servaddr.sin_addr.s_addr = htonl(INADDR_ANY);
        int len = sizeof(m_servaddr);

	bind(m_sockClient, (sockaddr*)&m_servaddr, sizeof(m_servaddr));//绑定套接字
	Mat image;
	unsigned char buf[426672];

        struct sockaddr_in addr_client;


	while (true)
	{
		std::vector<uchar> decode;

		int n = recvfrom(m_sockClient, buf, sizeof(buf), 0,(struct sockaddr *)&addr_client, (socklen_t *)&len);//接受缓存
		int pos = 0;
		while (pos < n)
		{
			decode.push_back(buf[pos++]);//存入vector
		}
		buf[n] = 0;
		image = imdecode(decode, CV_LOAD_IMAGE_COLOR);//图像解码
		imshow("image", image);
		waitKey(10);
	}
	return 0;
}

#include <unistd.h>//Linux系统下网络通讯的头文件集合
#include <sys/types.h>
#include <sys/socket.h>
#include <netdb.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <ctype.h>
#include <errno.h>
#include <malloc.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#include <sys/ioctl.h>
#include <stdarg.h>
#include <fcntl.h>
#include <fcntl.h>
#include <iostream>
#include <opencv2/opencv.hpp>  
#include <opencv2/imgproc/imgproc.hpp> 
using namespace cv;
using namespace std;

enum
{
	PORT = 8888
};
int main(int argc, char** argv)
{

	int m_sockClient;
	if ((m_sockClient = socket(AF_INET, SOCK_DGRAM, 0)) < 0)    //创建socket句柄，采用UDP协议
	{
		printf("create socket error: %s(errno: %d)\n", strerror(errno), errno);
		return -1;
	}
	sockaddr_in m_servaddr;
	memset(&m_servaddr, 0, sizeof(m_servaddr));  //初始化结构体
	m_servaddr.sin_family = AF_INET;           //设置通信方式
	m_servaddr.sin_port = htons(PORT);         //设置端口号
        m_servaddr.sin_addr.s_addr = inet_addr(argv[1]);
	//m_servaddr.sin_port = htons(8888);//设置需要发送的IP和端口号

	bind(m_sockClient, (sockaddr*)&m_servaddr, sizeof(m_servaddr));//绑定端口号
	VideoCapture capture(cv::String("/dev/video0"));//打开摄像头
	Mat image;
	while (true)
	{
		capture >> image;//读入图片
		if (image.empty())    //如果照片为空则退出
		{
			printf("empty image\n\n");
			return -1;
		}

		std::vector<uchar> data_encode;
		std::vector<int> quality;
		quality.push_back(CV_IMWRITE_JPEG_QUALITY);
		quality.push_back(10);//进行50%的压缩
		imencode(".jpg", image, data_encode,quality);//将图像编码

		//char encodeImg[426672];

		int nSize = data_encode.size();
                
                unsigned char *encodeImg = new unsigned char[nSize];

                printf("%d\n", nSize);

		for (int i = 0; i < nSize; i++)
		{
			encodeImg[i] = data_encode[i];
		}
                
		
		sendto(m_sockClient, encodeImg, nSize, 0, (const sockaddr*)& m_servaddr, sizeof(m_servaddr));
		memset(&encodeImg, 0, sizeof(encodeImg));  //初始化结构体
	}
	return 0;
}