public void SetCropGeometry(int left, int top, int width, int height)
{
// psz_geometry is undocumented
// see: https://forum.videolan.org/viewtopic.php?f=32&t=78702, https://forum.videolan.org/viewtopic.php?f=32&t=112281
// right x bottom + left + top works :)
LibVlc.libvlc_video_set_crop_geometry(Handle, String.Format("{0}x{1}+{2}+{3}", left + width, top + height, left, top));
}
public void UnSetCropGeometry()
{
LibVlc.libvlc_video_set_crop_geometry(Handle, null);
}