Xvid

Xvid

Initial release	2001; 23 years ago (2001) (as XviD)
Stable release	1.3.7 (December 28, 2019; 4 years ago (2019-12-28)) [±]
Preview release	SVN [±]
Repository	websvn.xvid.org
Written in	C
Operating system	Cross-platform
Size	11 MB
Standard(s)	MPEG-4 ASP
Type	Video codec
License	GNU General Public License, version 2 (SPDX identifier: GPL-2.0-or-later)
Website	www.xvid.com

Xvid (formerly "XviD") is a video codec library following the MPEG-4 video coding standard, specifically MPEG-4 Part 2 Advanced Simple Profile (ASP). It uses ASP features such as b-frames, global and quarter pixel motion compensation, lumi masking, trellis quantization, and H.263, MPEG and custom quantization matrices.

Xvid is a primary competitor of the DivX Pro Codec. In contrast with the DivX codec, which is proprietary software developed by DivX, Inc., Xvid is free software distributed under the terms of the GNU General Public License.^[1] This also means that unlike the DivX codec, which is only available for a limited number of platforms,^[2] Xvid can be used on all platforms and operating systems for which the source code can be compiled.