VS10 で OpenCV を使用して、ウェブカメラからビデオをストリーミングしました。また、winsock2 を使用して、サーバー クライアント TCP/IP (ローカル ホスト) から同じコンピューター内のメッセージと画像を送信しました。現在、リアルタイムでビデオをストリーミングしようとしています。関数「send」で各フレームの長さを指定できるかどうかはわかりません。定数のcharも送信できると思うからです。私の問題を解決するためにどの関数を使用できるか知っている人はいますか?
ソースコード：
サーバー.cpp
#include "Server.h"
using namespace std;
//Our main function
//void main()
int _tmain(int argc, _TCHAR* argv[])
{
//We have to start de Winsock-dll
long answer;
WSAData wsaData;
WORD DLLVERSION;
DLLVERSION = MAKEWORD (2,1);
//Stard the dll
answer = WSAStartup(DLLVERSION, &wsaData);
//The dll was started, now I use the winsock funcitions in the program
//Structure for the sockets
SOCKADDR_IN addr;
//addr = our structure
int addrlen = sizeof(addr);
//Now we have to create our sockets
//sListen = socket which is listening for incoming connection
SOCKET sListen;
//sConnect = socket which is operating if a connection was found!
SOCKET sConnect;
//Now we have to setup our sockets:
//AF_INET = means that our socket belongs to the internet family
//SOCK_STREAM = means that our socket is a connection-orientated socket
sConnect = socket(AF_INET, SOCK_STREAM, NULL);
//Now we have to setup our structure
//inet_addr = IP of our socket (I use 127.0.0.1...this is the loopback adress)
addr.sin_addr.s_addr = inet_addr("127.0.0.1");
//Retype the family
addr.sin_family = AF_INET;
//Now we have to setup the port in the structure;
//Now our server has the IP: 127.0.0.1 and the port 1234
addr.sin_port = htons (1234);
//Now we have to setup our sListen socket
sListen = socket(AF_INET, SOCK_STREAM, NULL);
//Now we blind the socket
//The socket becomes the structure addr
bind(sListen, (SOCKADDR*)&addr, sizeof(addr));
//We have to say that the socket is listening for an incoming connection
listen(sListen, SOMAXCONN);
//SOMAXCON means that the server is listenning without any limit
//We have to start the capture of the frames to send it
//Well first of all initialize the frames and the default camera
//Using OpenCV
CvCapture *capture = 0;
IplImage *frame = 0;
int key = 0;
capture = cvCaptureFromCAM(0);
//At last we have to say what the serve sould do if a connection was found!
//For this we create a endless loop:
for(;;)
{
cout << "Waiting for an incoming connection" <<endl;
//if a connection was found << "..." <<endl
if(sConnect = accept(sListen, (SOCKADDR*)&addr, &addrlen))
{
cout << "A connection was found" <<endl;
//Second part in reference to Youtube 2
//1r: The server should send a message with the funcion send();
//The number of the letters +1
//Ex: Number of the letters: 14+1=15
answer = send(sConnect, "Bonjour",8, NULL);
//*************************Third part of the project
//Sending an image captured from the cam
//always check
if ( !capture )
{
fprintf( stderr, "Cannot open initialize webcam!\n" );
return 1;
}
//create a window for the video
cvNamedWindow( "server", CV_WINDOW_AUTOSIZE );
while( key != 'q' )
{
//get a frame
frame = cvQueryFrame(capture);
//always check
if( !frame ) break;
//display current frame
cvShowImage( "server", frame );
//exit if user press 'q'
key = cvWaitKey(1);
}
char StartStream(IplImage *frame);
int streamSize(IplImage *frame);
if(frame!=0)
{
return sizeof(*frame->imageData);
}
char* buffer = new char[10000];
int len = 10000;
//int sent = 0;
for(int i=0; i<len; i+= answer)
{
answer = send(sConnect, buffer+i, len-i, 0);
}
}
//free memory
cvDestroyWindow( "server" );
cvReleaseCapture( &capture );
}
return 0;
}
クライアント.cpp
#include "Client.h"
using namespace std;
//void main()
int _tmain(int argc, _TCHAR* argv[])
{
string confirm;
char message[200];
string strmessage;
//IplImage *pImg;
//Start the functions of the Winsock-DLL
long answer;
WSAData wsaData;
WORD DLLVersion;
DLLVersion = MAKEWORD(2,1);
answer = WSAStartup(DLLVersion, &wsaData);
//Setup our Sockets and SOCKADDR_IN
SOCKADDR_IN addr;
//we will need addrlen later maybe!
int addrlen = sizeof(addr);
//Now setup our Socket
SOCKET sConnect;
sConnect = socket(AF_INET, SOCK_STREAM, NULL);
//IP of our server
addr.sin_addr.s_addr = inet_addr("127.0.0.1");
//Now we have to retype de family
addr.sin_family = AF_INET;
//Port of our server
addr.sin_port = htons(1234);
//Now we will ask the client if he wants to connect
cout << "Do you want to connect to your server? [Y/N]" <<endl;
cin >> confirm;
//If the user don't want to connect the client will close
if (confirm == "N")
{
exit(1);
}
else
{
if (confirm == "Y")
{
//function connect
connect(sConnect, (SOCKADDR*)&addr, sizeof(addr));
//Our client is working
//Now we program the client that he should recv a message from the server
//Our client should receive the message with the function recv();
//With new char "message"
answer = recv(sConnect, message, sizeof(message), NULL);
//The client should display the message
//With new string strmessage
strmessage = message;
cout << strmessage <<endl;
//the client also should display the image recived
char* buffer = new char[10000];
int len = 10000;
//int rec = 0;
int i=0;
for(int i=0; i<len; i+= answer)
{
while (answer = recv(sConnect, buffer+i, len-i, 0))
{
IplImage *frame = cvCreateImage(cvSize(640,480), 8, 3);
frame->imageData = (char *)buffer;
cvNamedWindow( "client", CV_WINDOW_AUTOSIZE );
cvShowImage( "client", frame );
}
return 0;
}
getchar();
}
}
getchar();
}
サーバーでメッセージと接続の確認を受け取ります。また、ウェブカメラを開きますが、クライアントは何も受信しません。