Xvid (formerly XviD) is an open source MPEG-4 video codec, implementing MPEG-4 Simple Profile, Advanced Simple Profile, and Advanced Video Coding standards. It is written in C with assembler optimizations for quality and speed (including MMX, SSE, and 3Dnow! code for i386 and AltiVec for PowerPC), and is especially optimized towards offline, multi-pass compression for storage and archival purposes.
Blender is a free 3D animation studio. It includes tools for modeling, sculpting, texturing (painting, node-based shader materials, or UV mapped), UV mapping, rigging and constraints, weight painting, particle systems, simulation (fluids, physics, and soft body dynamics and an external crowd simulator), rendering, node-based compositing, and non linear video editing, as well as an integrated game engine for real-time interactive 3D, and game creation and playback with cross-platform compatibility.
furious_tv is a PVR backend that uses an SQLite database to hold XMLTV listings data. Using that data, it can automatically execute commands to record TV shows off of a capture device (multiple capture devices are supported). If Shuriken is installed, furious_tv can also automatically power the system on/off for recordings to save power.
mpeg2videotools is a C library and set of tools for encoding, decoding, verification, and analysis of MPEG-2 video. Designed for completeness and correctness rather than speed, it supports 422 Profile and High Profile bitstreams. A PSNR tool is included for comparing uncompressed video to encoded MPEG-2 video.