hi,
i’m using visualgdb(trial) to build a program in visual studio for linux. i work with vs2010 and my remote machine is raspberry pi 2(raspbian installed). the program compiled built and linked successfully and i could run and debug it in vs2010. ​
the reason i decide to use visualgdb was to make executable application for linux. because i have never exprienced linux before. so i found the executable file that visualgdb produced on remote and try to run it and i got these errors:
​
/dev/video0 does not support memory mapping
munmap: Invalid argument​​​
unable to stop the stream .:bad file descriptor
highgui error: v4l: could not sync to video stream. inappropriate ioctl for device
segmentation​​​ fault

is there any solution?
the errors are the same for debug and release version
​​​​
and this is my code:

#include “opencv2/opencv.hpp”

using namespace cv;
using namespace std;

int main(int, char**)
{

VideoCapture cap(0); // open the default camera

if(!cap.isOpened())
{// check if we succeeded
cout<<“dashskgdklggkagdsa”;
waitKey(2000);
return -1;
}
double sec;
Mat edges;
Mat frame;
//vector<Vec4i> lines;
cap >> frame;
double test = cap.get(CV_CAP_PROP_FRAME_WIDTH);
cap.set(CV_CAP_PROP_FRAME_WIDTH,800);
cap.set(CV_CAP_PROP_FRAME_HEIGHT,600);

double fps;
namedWindow(“lines”,WINDOW_AUTOSIZE);
namedWindow(“orig”,WINDOW_AUTOSIZE);
for(;;)
{
cap >> frame; // get a new frame from camera
Mat gray(frame.rows,frame.cols,CV_8UC1);
//video.write(frame);
// imwrite(“test.bmp”,frame);
Mat r;

cvtColor(frame, gray, CV_BGR2GRAY);

imshow(“orig”, frame);
imshow(“lines”,gray);

if(waitKey(1)>0)
{
break;
}
}
return 0;
}​​​​