Filter Plugin
Ant Media Server has been released with a built-in filtering plugin since v2.4.0.2. The Filter Plugin provides users to perform real-time audio and video manipulation on the server side.

Main Feature
The MCU, which allows users to combine video and audio into a single stream for a conference room, is the main application of the filter plugin. Details can be also found on this blog post.

Instructions
To change the MCU layout or build the filter plugin, please check here.