Bino is a stereoscopic 3D video player with multi-display support. It supports many 2D and 3D video formats, a wide range of display devices, and distributed multi-display video presentation, e.g. for multi-projector setups.
Feff is a GUI for the command line video converter, FFMPEG. It will convert most any video file that FFmpeg will convert.
A script that finds duplicate files.
A C++ wrapper around the OpenGL C API.