How to get src from video

How to get src from video

Hi,
I have a problem to get src from video or from document, in the same way
I can do this with image, and it works fine:

var src = $(this).closest(".client").find("img").attr('src');

I've tried this:
var src = $(this).closest(".client").find("video").attr('src');

How can I do?

Thanks in advance.

Tegatti