videocapture read constantly increased memory usage

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Acquiring a jpeg from a IP camera, the following while statement causes unrestricted increase in memory with each iteration. Replacing the .read with .grab and .retrieve does not change the behaviour.

--cv:videocapture memory leak (bug #1481) was found while researching this problem and seems to address my problem however, I can;t seem to get an OpenCV version that doesn't continue to have my problem.

---the following command reveals the OpenCV version $ pkg-config --modversion opencv 3.0.0

---the following produced the memory leak.

while(1)
{
      cv::Mat a;
      Cam3.open("http://"My URL"/image/jpeg.cgi");
      Cam3.read(a)
      cv::imshow("Window", a);
      cv::waitKey(1);
      Cam3.release();
       a.release();
 }

Any help would be appreciated.

jim