ofVideoPlayer on Raspberry Pi remains in memory after destruction

I am building an application for the Pi where I create a new video player and destroy the old one every now and then. Even though I am destroying the previous video player the memory usage keeps growing.

Here is the create code:

_video = new ofVideoPlayer();
_video->load(fileName);
_video->setLoopState(OF_LOOP_NORMAL);
_video->play();

Destroy code in the destructor:

_video->stop();
_video->close();
delete _video;

Start with the shown ofVideoPlayer creation and destructor paths, reproducing repeated load, play, stop, close, and delete cycles on Raspberry Pi while monitoring memory. Trace the player lifecycle to identify what remains allocated after destruction; done means repeated replacement no longer causes memory usage to grow.