Qt multimedia browser plug-in

Hello community.

Being new to qt and facing my thesis work,
i have to implement some multimedia application.

I want to have this application running on windows and on linux, also the multimedia
playback functionality should be available as a browser plug-in at least for Firefox and Internet Explorer.

I am no newbie programmer, in fact i hold a degree in computer sciences.
Also i do know how to program FF and IE plugins using C++.

My question here is: Is Qt capable implementing a functionality comparable to the well known youtube player and similar applications ?

Can someone even point me to some tutorials or how-tos regarding this topics ?

Any information is highly appreciated.