MJPEG流无法在OpenCV 2.4中打开 [英] MJPEG stream fails to open in OpenCV 2.4

问题描述

我有一个问题让OpenCV 2.4捕获来自Raspberry Pi的MJPEG流，我已经在浏览器中检查流URL，它似乎工作正常，但是当我尝试在OpenCV中打开它似乎

I am having an issue getting OpenCV 2.4 to capture from an MJPEG stream from a Raspberry Pi, I have checked the stream URL in a browser and it seems to be working fine, however when I try to open it in OpenCV it seems to hang when I attempt to open it (I get neither the error or success messages on the terminal).

cv::VideoCapture vcap;
cv::Mat raw_image;

const string videoStreamAddress = "http://192.168.0.28:8080/?action=stream";

if(!vcap.open(videoStreamAddress))
{
    cout<<"Error opening video stream"<<endl;
    return -1;
}

cout<<"Stream opened"<<endl;

我使用 MJPEG-Streamer 提供流。
当捕获RTSP视频流时，同样的代码工作正常。

I am using MJPEG-Streamer to provide the stream. The same code works fine when capturing form a RTSP video stream.

编辑：我试图更改由<$ c捕获的图像的JPEG质量和分辨率

I tried changing the JPEG quality and resolution of the images captured by raspistill on the Pi and I now get the message saying the stream failed to open.

推荐答案

p>我发现的答案，它类似于Hitesh建议，我只需要一个。之前 mjpg 让OpenCV认为它是一个文件的URI。

I found the answer, it is similar to what Hitesh suggested, I just needed to have a . before mjpg to make OpenCV think it was a URI to a file.

我在此对类似问题的回答。

I found this in this answer to a similar question.

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