[英]C++/OpenCV Streaming Camera-Video/Images (MJPEG) from Socket into Browser (Windows 8.1)
[英]Streaming video from ip camera by opencv and c++
我正在嘗試使用OpenCV代碼從C ++訪問網絡攝像頭流,但是它失敗並顯示無法打開流的錯誤。 將URL替換為0時,下面提到的代碼將訪問網絡攝像頭。可通過VLC和python代碼訪問同一攝像機。
#include <stdio.h>
#include <opencv2/highgui/highgui.hpp>
#include <opencv2/opencv.hpp>
#include <iostream>
int main(int, char**) {
VideoCapture cap("rtsp://admin:admin@10.11.18.185:554/cam/realmonitor?channel=1&subtype=0"); // open the video camera using http protocol with the URL specified
while (!cap.isOpened()) // if not success, exit program
{
cout << "cap not open" << endl;
continue;
//return -1;
}
Mat frame;
namedWindow("MyVideo", CV_WINDOW_AUTOSIZE);
while (1) {
cap.read(frame);
imshow("MyVideo", frame);
if (waitKey(30) == 27) //wait for 'esc' key press for 30ms. If 'esc' key is pressed, break loop
{
cout << "esc key is pressed by user" << endl;
exit(0);
}
}
}
VideoCapture庫要求使用特定的格式集來接收視頻流。
從保存的文件中讀取文件時,我們在文件擴展名.mp4
, .avi
等中指定相同的名稱。如果未指定此擴展名,VideoCapture將無法捕獲幀。
嘗試使用:
VideoCapture cap("rtsp://admin:admin@10.11.18.185:554/cam/realmonitor?channel=1&subtype=0/video?x.mjpeg");
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