Cv.Load<CvHaarClassifierCascade>() causes memory leak #207
Description
Cv.Load<CvHaarClassifierCascade>() returns an object that when disposed, will not release memory allocated, probably because IsEnabledDispose is set to false.
The following code sample replicates and fixes the bug:
static void Main(string[] args)
{
for (var i = 0; i < 10000; i++)
{
//A potential b.ug in OpenCVSharp marks CvHaarClassifierCascade.IsEnabledDispose = false, preventing the IDispoable pattern from
//cleaning up the memory allocated when loading the face detection features
using (var res = Cv.Load<CvHaarClassifierCascade>("./haarcascade_frontalface_default.xml"))
{
//Calling this method cleans up the region of allocated memory correctly.
//Comment out these two lines to reproduce the memory leak.
var ptr = res.CvPtr;
NativeMethods.cvReleaseHaarClassifierCascade(ref ptr);
}
}
}