Freeseer a video capture utility capable of capturing presentations or demos. It can capture USB, firewire, local desktop, and more. It captures video and audio and mixes them together to produce a video, thus enabling you to capture great presentations, demos, or training material easily.
Scenic is a free software suite for streaming audio, video, and MIDI between live events. It was created at the Society for Arts and Technology (SAT) to give artists a powerful tool for telepresence in live arts contexts, and new media installations. The streaming is done over RTP with the GStreamer multimedia framework. Users can also choose low-bandwidth or high-quality codecs, depending on what is available on their system. It offers up to as many audio channels as your audio device supports. It consists of a desktop application and several command-line utilities: scenic (a Desktop application to stream audio, video, and MIDI over RTP); milhouse (streams audio and video over RTP); midistream (streams MIDI notes and controls over RTP); dc-ctl (controls connected DC IEEE 1394 cameras); firereset (resets an IEEE 1394 bus to help in case of problems); and jack-info (prints information about running JACK servers).
Slideshow is a kiosk-style application for showing text, image, and video in a loop on monitors and projectors. It is not meant for situations where interactive control is required, but when the content is continuously looping for a long time. The content is updated through a Web GUI. The application is split into two packages, the backend and frontend. The backend is written in C++ and OpenGL. and the frontend uses Python. Currently. the frontend is very GNU/Linux specific and will not run on any other platform, but is meant to be as platform independent as possible, as long as it handles OpenGL.