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the issue was with ffmpeg, as in the answer, follow my link to get instruction.
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the issue was with ffmpeg, as in the answer, follow my link to get instruction.

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Hi! So I have a foscam FI9821EP ip camera that i am trying to use inside opencv.<br />
<br />
this code pops up a window, then closes it instantly. The http link works in firefox, but opencv doesn't like it for some reason.<br />
<br />
Mat frame;<br />
namedWindow(&quot;video&quot;, 1);<br />
VideoCapture cap(&quot;<a href="http://192.168.1.90:88/cgi-bin/CGIStream.cgi?cmd=GetMJStream&usr=xxx&pwd=xxx&.mjpg" rel="ugc">http://192.168.1.90:88/cgi-bin/CGIStream.cgi?cmd=GetMJStream&usr=xxx&pwd=xxx&.mjpg</a>&quot;);<br />
while (cap.isOpened())<br />
{<br />
&nbsp; &nbsp; cap &gt;&gt;&nbsp;frame;<br />
&nbsp; &nbsp; if (frame.empty()) break;<br />
<br />
&nbsp; &nbsp; imshow(&quot;video&quot;, frame);<br />
&nbsp; &nbsp; if (waitKey(30) &gt;= 0) break;<br />
}<br />
<br />
<br />
Any help greatly appreciated!<br />
<br />
thanks.
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Hi! So I have a foscam FI9821EP ip camera that i am trying to use inside opencv.

this code pops up a window, then closes it instantly. The http link works in firefox, but opencv doesn't like it for some reason.

Mat frame;
namedWindow("video", 1);
VideoCapture cap("http://192.168.1.90:88/cgi-bin/CGIStream.cgi?cmd=GetMJStream&usr=xxx&pwd=xxx&.mjpg");
while (cap.isOpened())
{
    cap >> frame;
    if (frame.empty()) break;

    imshow("video", frame);
    if (waitKey(30) >= 0) break;
}


Any help greatly appreciated!

thanks.

ip camera in opencv?

A digital camera or digicam is a camera that encodes digital images and videos digitally and stores them for later reproduction. Most cameras sold today are digital, and digital cameras are incorporated into many devices ranging from PDAs and mobile phones (called camera phones) to vehicles. Digital and film cameras share an optical system, typically using a lens with a variable diaphragm to focus light onto an image pickup device.  Digital cameras can display images on a screen immediately after being recorded, and store and delete images from memory. Many digital cameras can also record moving videos with sound. Some digital cameras can crop and stitch pictures and perform other elementary image editing.

Digital Cameras / Camcorders

C++ is an intermediate-level general-purpose programming language, not to be confused with C or C#. It was developed as a set of extensions to the C programming language to improve type-safety and add support for automatic resource management, object-orientation, generic programming, and exception handling, among other features.