这是交易,我正在尝试将我的 S3 接口为网络摄像头,使用适用于 android 的 IP WebCam 应用程序,然后在软件中制作一个 IP 网络摄像头,通常地址是http://192.168.1.XX:8080/greet.html也许最后两位数字会改变,网页给我的选项和信息是这样的:
"Here is the list of IP Webcam service URLs:
http://192.168.1.XX:8080/video is the MJPEG URL."
我正在使用的代码是这样的:
include "opencv2/highgui/highgui.hpp
include "opencv2/imgproc/imgproc.hpp
using namespace cv;
int main(){
VideoCapture cap("http://192.168.1.XX:8080/video.mjpg"); // connect to an ip-cam ( might need some additional dummy param like: '?type=mjpeg' at the end
while(cap.isOpened()){
Mat frame;
if (!cap.read(frame))
break;
imshow("lalala",frame);
int k = waitKey(10);
if ( k==27 )
break;
}
return 0;
}
所以 IP 网络摄像头应用程序识别连接,但没有任何图像......然后它说:
warning: Error opening file <../../modules/highgui/src/cap_ffmpeg_imp
Cannot open the web cam
Process returned -1 <0xFFFFFFF> execution time: 37.259 s
Press any key to continue.
我正在使用:
Windows 7 Professional
Open CV 2.4.4
Codeblocks 13.12
USB 2.0 webcam 640x480 at 30fps, 50 Hz and all standard。