Shortcode in Shortcode – read

hello,

i would realize this html with shordcodes:

<div>
 <div class="imghover">
  <img data-img="imgurl" data-hover="imghoverulr" src="imgurl" class="imgoverout">
 </div>
</div>

now i would realized this in the visuel editor like this:

[content]
[img1][/img1]
[imghover][/imghover]
[/content]

how can i realized it for my function.php?
i don’t would do realized it with attributes because the user should add simple images in the editor with the mediacenter. and not search the url for attributes of shortcodes.

can you help?

yours,
yellow