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Hi,

On windows with opencv 3.0 I can share same webcam device using VideoCapture. Is it true on linux, android...?

thanks for yours anwers.

int main(int argc, char** argv)
{
        VideoCapture vid1;
        vid1.open(0); // Open device 0 
        VideoCapture vid2;
        vid2.open(0); // Open device 0
        Mat frame1;
        Mat frame2;
        for (;;) {
            vid1 >> frame1;
            vid2 >> frame2;
            if (frame1.empty())
                break;
            if (frame2.empty())
                break;

            imshow("video1", frame1);// Capture with device 0
            imshow("video2", frame2);// Capture with device 0
            imshow("diff", frame2-frame1);// It's not frame on windows
            char key = (char)waitKey(30);
        }

    }

Hi,

On windows with opencv 3.0 I can share same webcam device using VideoCapture. Is it true on linux, android...?

thanks for yours anwers.

int main(int argc, char** argv)
{
        VideoCapture vid1;
        vid1.open(0); // Open device 0 
        VideoCapture vid2;
        vid2.open(0); // Open device 0
        Mat frame1;
        Mat frame2;
        for (;;) {
            vid1 >> frame1;
            vid2 >> frame2;
            if (frame1.empty())
                break;
            if (frame2.empty())
                break;

            imshow("video1", frame1);// Capture with device 0
            imshow("video2", frame2);// Capture with device 0
            imshow("diff", frame2-frame1);// It's not same frame on windows
            char key = (char)waitKey(30);
        }

    }