Last updated on 2013-07-25, by Irene

What is Xvid

About Xvid Format

XviD is an Open-source compression codec based on MPEG-4 ISO format. It uses ASP features such as b-frames, global and quarter pixel motion compensation, Lummi masking, trellis quantization, and H.263, MPEG and custom quantization matrices. XviD, like many other MPEG-4 formats, can be played with certain MPEG-4 compatible, stand-alone DVD/DivX/XviD players.

XviD is not a video format. Since XviD uses MPEG-4 Advanced Simple Profile (ASP) compression, any video that is encoded with it is termed “MPEG-4 ASP video” – not “XviD video” – and can therefore be decoded with all MPEG-4 ASP compliant decoders. This includes a large number of media players and decoders, in particular all the ones based on the free/open source libavcodec library from FFmpeg.

XviD encoded files can be written to a CD or DVD and played in a DivX compatible DVD player. However, XviD can optionally encode video with advanced features that most DivX Certified set-top players do not support. Files encoded with global motion compensation, Qpel, MPEG quantization, multiple B-frames or files that exceed the VBV limitations may not play back properly on DivX Certified hardware devices.

The XviD codec makes it possible to compress a full-length DVD-quality movie enough to fit on a single CD (might require 2 CDs depending on the length of the movie), while still maintaining the original image quality. Despite the fact that XviD movies offer higher quality video at smaller file sizes they take less time to encode than MPEG-2 due to the incredible compression technology. The video is usually combined with MP3 or AC3 audio to enable both high quality video and audio. These factors and the fact that the codec is distributed for free has contributed to the success of the format. When you install the XviD codec it basically provides your system with specific instructions how to compress and decompress video in the XviD format. Once you’ve installed the XviD codec on your system you will be able to play XviD videos using Windows Media Player or any other XviD-enabled player.

Related Software

Leawo Video Converter (Xvid Converter): an easy video and audio solution for any format conversions, with fast speed and excellent output guaranteed. Equipped with 3D conversion function, you can get 3D Xvid video as output. This Xvid Converter not only converts common videos to video with Xvid encoder, but also converts Xvid video to other video formats.

Leawo DVD Ripper (DVD to Xvid Ripper): a useful DVD ripping program for users to rip DVD to video in various formats. So with it you can enjoy great convenience to convert DVD to Xvid for appreciation. This DVD to Xvid Ripper enables you to convert DVD to Xvid with fast speed and excellent video quality. 3D Xvid video as output is also supportable.

Related Source
AVI, WMV, VOB, MP4, FLV, 3GP, DVD, Blu-ray, Mplayer, Kmplayer, VLC Player, Windows Media Player

References
How to convert DVD to Xvid
How to convert MKV to Xvid

External Links
http://en.wikipedia.org/wiki/Xvid