I use decks with auto-slide and shuffling for photo slideshow purposes. However, I sometimes want to include videos in those decks, but that turns out to be rather useless, since auto-slide keeps going if the video is played.

Playing an embedded video should pause auto-slide.

When the video ends, or is paused, perhaps auto-slide could turn back on. Maybe it would be better to just let the user turn it back on automatically, though.