Receive video from network with 100*100 then resize the video into 640*368

edit

Resizing 640368 dimensions video to 100100 using resize() in opencv 3.2 and sending 100100 data to client in network after receiving from server then I do resize into 640368 using resize function then, then video pixels has reduced. So how should I solve this ??

client.cpp

      #include "opencv2/opencv.hpp"
      #include <vector>

       using namespace std;
       using namespace cv;
       int main(int argc,char **argv)
      {
int clientsocket;
char* serverIP;
int serverPortid;
struct sockaddr_in clientaddr;
serverIP   = argv[1];
    serverPortid = atoi(argv[2]);
clientsocket=socket(AF_INET,SOCK_STREAM,0);
if(clientsocket==0)
{
    perror("socket failed");
    exit(0);
}
clientaddr.sin_family=AF_INET;
clientaddr.sin_addr.s_addr=inet_addr(serverIP);
clientaddr.sin_port=htons(serverPortid);
if(connect(clientsocket,(struct sockaddr *)&clientaddr,sizeof(clientaddr))<0)
{
    perror("connection failed");
    exit(0);
}

VideoWriter video("output.avi",CV_FOURCC('M','J','P','G'),25,Size(640,368),true);
Mat frame_mata(368,640,CV_8UC3, Scalar(0,255,255));

while(1)
{

    vector <unsigned char> vectData(30000);

    int framereceive = recv(clientsocket,vectData.data(),vectData.size(),MSG_WAITALL);

    Mat data_mata(100, 100, CV_8UC3, vectData.data());
    cout<<"frame receive :" << framereceive << endl;
    imshow("client view before resize", data_mata);
    resize(data_mata,frame_mata,frame_mata.size(),1,1,INTER_LINEAR);
    imshow("client view after resize", frame_mata);
    video.write(frame_mata);


    if (framereceive == 0)
    {
        break;
    }

    waitKey(1);
}
video.release();
close(clientsocket);
return 0;}

server.cpp

    #include "opencv2/opencv.hpp"

   using namespace cv;
   using namespace std;

    int main(int argc, char **argv)
    {
int portid=8080;
int serversocket, clientsocket;
struct sockaddr_in serveraddr, clientaddr;
int addrLen = sizeof(struct sockaddr_in);

serversocket = socket(AF_INET,SOCK_STREAM,0);
if(serversocket == 0)
{
    perror("socket failed");
    exit(0);
}

serveraddr.sin_family=AF_INET;
serveraddr.sin_addr.s_addr=htonl(INADDR_ANY);
serveraddr.sin_port=htons(portid);

if(bind(serversocket,(struct sockaddr *)&serveraddr,sizeof(serveraddr))<0)
{
    perror("bind failed");
    exit(0);
}
if(listen(serversocket,4)<0)
{
    perror("listen failed");
    exit(0);
}
cout <<  "Waiting for connections...\n"<<  "Server Port:" << portid << std::endl;
clientsocket = accept(serversocket,(struct sockaddr *)&clientaddr, (socklen_t*)&addrLen);
if(clientsocket<0)
{
    perror("server cannot accept");
    exit(0);
}

cout<<"server has connected" << endl;

VideoCapture serverCapture("/home/srmri/Downloads/videostream/SampleVideo_640x360_1mb.mp4");
int width = serverCapture.get(CV_CAP_PROP_FRAME_WIDTH);
int height = serverCapture.get(CV_CAP_PROP_FRAME_HEIGHT);
int totalframe = serverCapture.get(CAP_PROP_FRAME_COUNT);

cout << "Width : " << width << "Height : " << height <<"total Frame : " << totalframe<< endl;

//VideoWriter writer("serveroutput.avi",CV_FOURCC('M','J','P','G'),25,Size(width,height),true);
Mat frame;

 if (!serverCapture.isOpened())
 {
    perror("camera is already is in use");
    exit(0);
 }
int imgSize =0 ;
Mat frame_send(100,100,CV_8UC3);

while(1)
 {
    frame = Mat::zeros( height,width, CV_8UC3);
    serverCapture >> frame;
    resize(frame,frame_send,frame_send.size(),1, 1,INTER_LINEAR);

    waitKey(1);
    imgSize = frame_send.total() * frame_send.elemSize();
    if(waitKey(30)==27)
    {
        perror("esc key has pressed");
        exit(0);
    }



    if(imgSize == 0 || imgSize < 0)
    {
        break;
    }
    else
    {
        imshow("server side", frame);
        imshow("Resize server side ", frame_send );
        //writer.write(frame);
    }       
    cout<<"image size :" << imgSize <<endl;
    send(clientsocket,frame_send.data,imgSize,MSG_EOR);


 }
//writer.release();
serverCapture.release();

return 0;}