Fms and custom file plug-in

Hello !

I am trying to develop a custom file plug-in which will filter audio component of a live stream, on the fly, and that filtered data could then be forwarded to respective clients.

The problem is that I haven't been able to find any evident documentation that supports the fact that you can create such a customized plug-in for manipulating live streams dynamically over rtmp/rtmpt.

Please, tell me if it really is possible to develop a plug-in for the same.

Also, if I could be provided some documentation regarding the same, it will be very helpful to my cause.

Thanks.