Hi,
recently I decided to write Pure Data external for Newtek NDI.
Now I think the basic functionality is ready for testing with more features coming soon. For now you can:

• broadcast video
• configure video dimensions
• set desired framerate

It's meant to work with Gem, but if there is any other pd graphics library based on opengl it should also be possible to somehow connect them.

Detailed description and examples included in repository https://github.com/gogo2/pd-ndi