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This is a listing of open-source codecs—that is, open-source software implementations of audio or video coding formats, audio codecs and video codecs respectively. Many of the codecs listed implement media formats that are restricted by patents and are hence not open formats.
DivX, LLC (/ ˈ d ɪ v ɪ k s /; also formerly known as DivXNetworks, Inc. and DiVX, Inc.) is a privately held video technology company based in San Diego, California. DivX, LLC is best known as a producer of three codecs: an MPEG-4 Part 2-based codec, the H.264/MPEG-4 AVC DivX Plus codec and the High Efficiency Video Coding DivX HEVC
Note that operating system support does not mean whether video encoded with the codec can be played back on the particular operating system – for example, video encoded with the DivX codec is playable on Unix-like systems using free MPEG-4 ASP decoders (FFmpeg MPEG-4 or Xvid), but the DivX codec (which is a software product) is only available ...
DIVX was a rental format variation on the DVD player in which a customer would buy a DIVX disc (similar to a DVD) for approximately US$4.50, which was watchable for up to 48 hours from its initial viewing. After this period, the disc could be viewed by paying a continuation fee to play it for two more days.
RealVideo Fractal Codec (a.k.a. Iterated Systems ClearVideo) FFmpeg (decoder only) RealMedia HD (a.k.a. RealVideo 11 or RV60) RealMedia HD SDK; FFmpeg (decoder only) Snow Wavelet Codec; Sorenson Video, [65] Sorenson Spark. FFmpeg; VP9 by Google; VP10 was not released and instead was integrated into AV1 libvpx; FFmpeg; Windows Media Video (WMV)
Although sometimes compared to DivX products, Xvid is neither a container format nor a video format, it is a software library that encodes video using specific coding profiles of the common MPEG-4 ASP video format. Those types of restrictions are intended to simplify the construction of multimedia recorders and players.
Microsoft's Ben Waggoner states "Microsoft (well before my time) went down the codec standard route before with MPEG-4 part 2, which turns out to be a profound disappointment across the industry - it didn't offer that much of a compression advantage over MPEG-2, and the protracted license agreement discussions scared off a lot of adoption. I ...
DivX Plus HD, launched in 2009, is the brand name for the file type that DivX, Inc. has chosen for their high definition video format. DivX Plus HD files consist of high definition H.264/MPEG-4 AVC video with surround sound Advanced Audio Coding (AAC) audio, wrapped up in the open-standard Matroska container, identified by the .mkv file extension.