Application: Pitivi Video Editor
non-linear audio/video editor
PiTiVi allows users to easily edit audio/video projects based on the GStreamer framework. PiTIVi provides several ways of creating and modifying a timeline. Ranging from a simple synopsis view (a-la iMovie) to the full-blown editing view (aka Complex View) which puts you in complete control of your editing.
GStreamer is a streaming media framework, based on graphs of filters which operate on media data. Applications using this library can do anything from real-time sound processing to playing videos, and just about anything else media-related. Its plugin-based architecture means that new data types or processing capabilities can be added simply by installing new plug-ins.