async UniTask PlayVideo(string url)
{
_mediaPlayer.VideoSource = url;
// Start observing OnMediaError before PrepareVideo because
// PrepareVideo itself can trigger MediaError events
var error = _mediaPlayer.OnMediaErrorAsObservable().ToUniTask(useFirstValue: true);
var complete = _mediaPlayer.OnVideoPreparedAsObservable().ToUniTask(useFirstValue: true);
_mediaPlayer.PrepareVideo().ThrowIfFail();
// Throw exception in case an error happens,
// otherwise wait until preparation is completed
await UniTask.WhenAny(error, complete);
// Play video
_mediaPlayer.IsLooping = true;
_mediaPlayer.Play().ThrowIfFail();
}