Conduit Live is a Mac OS X application that’s available as part of the Conduit Suite.
It’s the “swiss army knife” of a compositor’s toolkit — a lightweight app that launches fast and renders faster. Conduit Live does realtime effects with multiple video inputs, and has the ergonomic and flexible node-based Conduit user interface. It includes simple keyframing, deep file format support and batch rendering, so you’ll be rendering out dozens of files while others are still waiting for their compositing application to start up…
But that’s not all — Conduit Live is also a professional-grade video capture and live performance tool that works with live video streams even at HD resolutions.