Writing an Anaglyph Video Presenter for the Windows Media Player 1

Dear community,

Some time ago we implemented a DirectX Custom Renderer Filter, which is able
to take a stereo video and render an anaglyph image.

Now my question:

What is the optimal solution to integrate such an anaglyph presenter into
the Windows Media Player?

- Extending the EVR with a custom presenter?

(and how can i register my video for this specific resenter, so that the WMP
uses my presenter instead of the EVR to show a stereo video)

- Writing a DMO Rendering Plug-In?

- what else is possible and useful?

Suggestions are very welcome!

Maybe somebody from the Microsoft Dev Team could give a hint?