Copia y pega este código en tu código HTML:
<iframe width="560" height="315" src="https://audiovisuales.upm.es/player/full.php?src=1213/leer/20121122clase1" title="UPM|Player" frameborder="0" allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share" referrerpolicy="strict-origin-when-cross-origin" allowfullscreen></iframe>
