Have you tried using SetCaptureProperty
method:
using Emgu.CV;
using Emgu.CV.Structure;
Class Movie
{
private Capture capture;
public Movie(string fileName)
{
capture = new Capture(fileName);
...
}
public Image<Bgr, byte> GetFrame(double frameNum)
{
capture.SetCaptureProperty(CAP_PROP.CV_CAP_PROP_POS_FRAMES, frameNum);
return capture.QueryFrame();
}
}