C++ OpenCV - 如何捕获 rtsp 视频流
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OpenCV - how to capture rtsp video stream
提问by Niedved
for example we have working rtsp stream test like: "rtsp://184.72.239.149/vod/mp4:BigBuckBunny_115k.mov" (it works in moment of publishing this post)
例如，我们有工作 rtsp 流测试，如：“rtsp://184.72.239.149/vod/mp4:BigBuckBunny_115k.mov”（它在发布这篇文章时起作用）
Now I want to catch this video stream in openCV (opencv 2.4.7 / 2.4.8) I've my code works perfectly on local movie files but when I try to capture rtsp I get msgs like: "Couldn't read movie file rtsp://184.72.239.149/vod/mp4:BigBuckBunny_115k.mov"
现在我想在 openCV (opencv 2.4.7 / 2.4.8) 中捕获这个视频流我的代码在本地电影文件上运行良好，但是当我尝试捕获 rtsp 时，我收到如下消息：“无法读取电影文件rtsp://184.72.239.149/vod/mp4:BigBuckBunny_115k.mov"
I've tried few different ways like:
我尝试了几种不同的方法，例如：
CvCapture *camera = cvCreateFileCapture("rtsp://184.72.239.149/vod/mp4:BigBuckBunny_115k.mov");
if (camera == NULL) {
printf("video is null, aborting...");
return -1;
}
else{
printf("video ok");
}
or:
或者：
cv::VideoCapture vcap;
//open the video stream and make sure it's opened
if(!vcap.open("rtsp://184.72.239.149/vod/mp4:BigBuckBunny_115k.mov")) {
std::cout << "Error opening video stream or file" << std::endl;
return -1;
}
Any idea ?
任何的想法 ？
--
——
Niedved
尼德韦
采纳答案by Murat ?eker
The following code works for me without any problem. If you have a username and password for the stream, do not forget to include it in the url address.
以下代码对我有用，没有任何问题。如果您有流的用户名和密码，请不要忘记将其包含在 url 地址中。
cv::VideoCapture capture(url);
if (!capture->isOpened()) {
//Error
}
cv::namedWindow("TEST", CV_WINDOW_AUTOSIZE);
cv::Mat frame;
while(m_enable) {
if (!capture->read(frame)) {
//Error
}
cv::imshow("TEST", frame);
cv::waitKey(30);
}
