[$] Video editing and free software

Two talks at the 2015 Libre Graphics Meeting in Toronto came from video-editing projects. One was an update from Natron, a relatively young project that deals with video compositing, while the other was a reflection on ten years' worth of development on the general-purpose non-linear editor (NLE) Pitivi. Both are active projects, but they take two markedly different approaches: one aims to support an existing industry standard, while the other must build its core functionality from the ground up.