Just figured it out for le mobile YouTube videos.
The actual link is
<!-- m --><a class="postlink" href="http://m.youtube.com/index?gl=IN&desktop_uri=%2F%3Fgl%3DIN#/watch?v=ukrAn28prwk&feature=g-high-u">http://m.youtube.com/index?gl=IN&deskto ... e=g-high-u</a><!-- m -->
It is shortened to
Code:
[youtube1]http://youtu.be/ukrAn28prwk [/youtube1]