NationMaster - Encyclopedia: DivX

DivX is a brand name of products created by DivX, Inc. (formerly DivXNetworks, Inc.), including the DivX Codec which has become popular due to its ability to compress lengthy video segments into small sizes while maintaining relatively high visual quality. The DivX codec uses lossy MPEG-4 Part 2 compression, also known as MPEG-4 ASP, where quality is balanced against file size for utility. It is one of several codecs commonly associated with "ripping", where audio and video multimedia are transferred to a hard disk and transcoded. Many newer "DivX Certified" DVD players are able to play DivX encoded movies, although the Qpel and global motion compensation features are often omitted to reduce processing requirements. They are also excluded from the base DivX encoding profiles for compatibility reasons. A video codec is a device or software that enables video compression and or decompression for digital video. ... This article is about the video codec. ... DivX, Inc. ... DivX Video This is a copyrighted and/or trademarked logo. ... â€œSoftware developmentâ€ redirects here. ... DivX, Inc. ... Code complete redirects here. ... Year 2007 (MMVII) is the current year, a common year starting on Monday of the Gregorian calendar and the AD/CE era in the 21st century. ... An operating system (OS) is the software that manages the sharing of the resources of a computer and provides programmers with an interface used to access those resources. ... A cross-platform (or platform independent) programming language, software application or hardware device works on more than one system platform (e. ... Computer software can be organized into categories based on common function, type, or field of use. ... This article is about media players in general. ... A codec is a device or program capable of performing encoding and decoding on a digital data stream or signal. ... A software license is a legal agreement which may take the form of a proprietary or gratuitous license as well as a memorandum of contract between a producer and a user of computer software. ... Proprietary software is software with restrictions on copying and modifying as enforced by the proprietor. ... A website (alternatively, Web site or web site) is a collection of Web pages, images, videos or other digital assets that is hosted on one or several Web server(s), usually accessible via the Internet, cell phone or a LAN. A Web page is a document, typically written in HTML... DivX, Inc. ... A video codec is a device or software that enables video compression and or decompression for digital video. ... Video compression refers to making a digital video signal use less data, without noticeably reducing the quality of the picture. ... A lossy data compression method is one where compressing data and then decompressing it retrieves data that may well be different from the original, but is close enough to be useful in some way. ... MPEG-4 Part 2 is a video compression technology developed by MPEG. It belongs to the MPEG-4 ISO/IEC standard (ISO/IEC 14496-2). ... This page is a candidate to be copied to Wiktionary. ... For the process of sawing wood along the grain, see Rip saw. ... Methods and media for sound recording are varied and have undergone significant changes between the first time sound was actually recorded for later playback until now. ... For other uses, see Video (disambiguation). ... Typical hard drives of the mid-1990s. ... In telecommunication, transcoding is the direct digital-to-digital conversion from one encoding scheme, such as voice LPC-10, to a different encoding scheme without returning the signals to analog form. ... Quarter pixel (often also called as q-pel or qpel) refers to a quarter of a standard pixel. ... Global Motion Compensation (GMC) is a technique used when encoding video in a digital format, such as MPEG-4 (e. ...

Name

The "DivX" brand is distinct from "DIVX" (Digital Video Express), an unrelated attempt by the U.S. retailer Circuit City to develop a DVD rental system requiring special discs and players. The winking emoticon in the early "DivX ;-)" codec name was a tongue-in-cheek reference to the failed DIVX system. The DivX company then adopted the name of the popular DivX ;-) codec (which was not created by them), dropped the smiley and released DivX 4.0, which was actually the first DivX version (that is, DivX ;-) and DivX are two different things created by different people, the former is not an older version of the latter). The DivX name is its trademark. This article is about the video codec. ... For other uses of terms redirecting here, see US (disambiguation), USA (disambiguation), and United States (disambiguation) Motto In God We Trust(since 1956) (From Many, One; Latin, traditional) Anthem The Star-Spangled Banner Capital Washington, D.C. Largest city New York City National language English (de facto)1 Demonym American... Circuit City (NYSE: CC) is a dealer and retailer in brand-name consumer electronics, personal computers, and entertainment software. ... Emoticons originated with text representations. ... Sarcasm is the making of remarks intended to mock the person referred to (who is normally the person addressed), a situation or thing. ... For other uses of smiley and smiley face, see Smiley (disambiguation). ... â€œ(TM)â€ redirects here. ...

Early work

DivX ;-) 3.11 Alpha and later 3.xx versions refers to a hacked version of the Microsoft MPEG-4 Version 3 video codec (which was actually not MPEG-4 compliant), extracted around 1998 by French hacker Jérome Rota (also known as Gej) in Montpellier. The Microsoft codec, which originally required that the compressed output be put in an ASF file, was altered to allow other containers such as Audio Video Interleave (AVI). Rota hacked the Microsoft codec because newer versions of the Windows Media Player wouldn't play his video portfolio and résumé that were encoded with it. Instead of re-encoding his portfolio, Rota and German hacker Max Morice decided to reverse engineer the codec, which "took about a week". ^[1] This article is about computer hacking. ... Microsoft Corporation, (NASDAQ: MSFT, HKSE: 4338) is a multinational computer technology corporation with global annual revenue of US$44. ... Advanced Systems Format (formerly Advanced Streaming Format, Active Streaming Format) is Microsofts proprietary digital audio/digital video container format, especially meant for streaming media. ... A container format is a computer file format that can contain various types of data, compressed by means of standardized codecs. ... // Audio-Video Interleaved, known by its acronym AVI, is a multimedia container format introduced by Microsoft in November 1992 as part of its Video for Windows technology. ...

From 1998 through 2002, independent enthusiasts within the DVD-ripping community created software tools which dramatically enhanced the quality of video files that the DivX ;-) 3.11 Alpha and later 3.xx versions could produce. One notable tool is Nandub, a modification of the open-source VirtualDub, which features two-pass encoding (termed "Smart Bitrate Control" or SBC) as well as access to internal codec features. Smart Bitrate Control, commonly referred to as SBC, is a technique for achieving greatly improved video compression efficiency using the DivX;-)3. ... VirtualDub is an open source video capture and linear processing tool for Microsoft Windows. ... Smart Bitrate Control, commonly referred to as SBC, is a technique for achieving greatly improved video compression efficiency using the DivX;-)3. ...

DivXNetworks

In early 2000, Jordan Greenhall recruited Rota to form a company (originally called DivXNetworks, Inc., renamed to DivX, Inc. in 2005) to create clean-room DivX and steward its development. This effort resulted first in the release of the "OpenDivX" codec and source code on January 15, 2001. OpenDivX was hosted as an open-source project on the Project Mayo web site hosted at projectmayo.com (the name comes from "mayonnaise", because, according to Rota, DivX and mayonnaise are both "French and very hard to make." ^[1]). The company's internal developers and some external developers worked jointly on OpenDivX for the next several months, but the project eventually stagnated. For the meaning of Cleanroom engineering in software development, see Cleanroom Software Engineering. ... For the song by The Smashing Pumpkins, see Mayonaise (song). ...

In early 2001, DivX employee "Sparky" wrote a new and improved version of the codec's encoding algorithm known as "encore2". This code was included in the OpenDivX public source repository for a brief time, but then was abruptly removed. The explanation from DivX at the time was that "the community really wants a Winamp, not a Linux." It was at this point that the project forked. That summer, Rota left the French Riviera and moved to San Diego "with nothing but a pack of cigarettes"^[2] where he and Greenhall founded what would eventually become DivX, Inc. ^[1] In software, a project fork or branch happens when a developer (or a group of them) takes code from a project and starts to develop independently of the rest. ...

DivX took the encore2 code and developed it into DivX 4.0, initially released in July 2001. Other developers who had participated in OpenDivX took encore2 and started a new project—Xvid—that started with the same encoding core. DivX, Inc. has since continued to develop the DivX codec, releasing DivX 5.0 in March 2002. By the release of version 5.2.1 on September 8, 2004, the DivX codec was substantially feature-complete. ^[3] Changes since then have tended to focus on speed, and encouraging wider hardware player support. Xvid (formerly XviD) is a video codec library following the MPEG-4 standard. ... is the 251st day of the year (252nd in leap years) in the Gregorian calendar. ... Year 2004 (MMIV) was a leap year starting on Thursday of the Gregorian calendar. ...

DivX Media Format (DMF)

The latest generation, DivX 6, was released on June 15, 2005 and expands the scope of DivX from including just a codec and a player by adding a media container format. This optional new file format introduced with DivX 6 is called "DivX Media Format" ("DMF") (with a .divx extension) that includes support for the following DVD-Video and VOB container like features. A filename extension is a suffix to the name of a computer file applied to indicate its type. ... A type code is a mechanism used in pre-Mac OS X versions of the Macintosh operating system to denote a files format, in a manner similar to file extensions in other operating systems. ... A container format is a computer file format that can contain various types of data, compressed by means of standardized codecs. ... is the 166th day of the year (167th in leap years) in the Gregorian calendar. ... Year 2005 (MMV) was a common year starting on Saturday (link displays full calendar) of the Gregorian calendar. ... A container format is a computer file format that can contain various types of data, compressed by means of standardized codecs. ... DVD-Video format logo DVD-Video is a consumer video format used to store digital video on DVD (DVD-ROM) discs, and is currently the dominant form of consumer video formats in the United States, Canada, Europe and Australia. ... A VOB file (DVD-Video Object or Versioned Object Base) is a container format contained in DVD-Video media. ...

This new "DivX Media Format" also came with a "DivX Ultra Certified" profile, and all 'Ultra' certified players must support all "DivX Media Format" features. While video encoded with the DivX codec is an MPEG-4 video stream, the DivX Media Format is analogous to media container formats such as Apple's QuickTime. In much the same way that media formats such as DVD specify MPEG-2 video as a part of their specification, the DivX Media Format specifies MPEG-4-compatible video as a part of its specification. However, despite the use of the ".divx" extension, this format is an extension to the AVI file format. The methods of including multiple audio and even subtitle tracks involve storing the data in RIFF headers and other such AVI hacks which have been known for quite a while, such that even VirtualDubMod supports them. DivX, Inc. did this on purpose to keep at least partial backwards compatibility with AVI, so that players that do not support the new features available to the .divx container format (like interactive menus, chapter points and XSUB subtitles) can at least play that primary video stream (usually the main movie if the .divx contain multiple video streams like special features like bonus materials). Of course, the DivX codec and tools like Dr.DivX still support the traditional method of creating standard AVI files. In technology (especially computing), backward compatibility has several related but differing meanings: A system is backward compatible if it is compatible with earlier versions of itself, or sometimes other earlier systems, particularly systems it intends to supplant. ... The Resource Interchange File Format (RIFF) is a generic meta-format for storing data in tagged chunks. ... VirtualDubMod is an open source video capture and linear processing tool for Microsoft Windows. ... Dr.DivX is an application capable of transcoding many video formats to DivX. // Dr.DivX was originally a closed source encoding application that was based upon royalty charging libraries. ...

DivX Subtitles (XSUB)

DivX, Inc. have since DivX 6 their own proprietary subtitle tracks that they call "XSUB" (which they also trademarked as XSUB). These subtitles are not text-based like many other subtitles, instead they are bitmap (digital image) based like vobsub subtitles for DVD-Video are. And like vobsubs for DVD-Video are supposed to be, XSUB does not come in standalone files but are only embedded in .divx containers, which can be created with Dr.DivX, (Dr.DivX can actually convert/encode XSUB from vobsubs inside DVD-Video). A .divx container can contain multiple XSUB subtitles in several languages. Proprietary indicates that a party, or proprietor, exercises private ownership, control or use over an item of property, usually to the exclusion of other parties. ... Computer files can be divided into two broad categories: binary and text. ... This article is about the storage organization of raster images. ... A digital image is a representation of a two-dimensional image as a finite set of digital values, called picture elements or pixels. ... VobSub is a tool that rips subtitles from VOB files. ... DivX is a brand name of products created by DivX, Inc. ...

DivX metadata (XTAG)

DivX, Inc. have since DivX 6 used their own proprietary metadata tags, for information tagging, that they call "XTAG" (which they also trademarked as XTAG). These tags are only supposed to be embedded into .divx containers. Most other containers have their own metadata format and the players usually use them, the most used tags on music files are probably ID3 (ID3v1/ID3v2) and APEv2. Metadata is data about data. ... DivX is a brand name of products created by DivX, Inc. ... This article or section does not cite its references or sources. ... APEv2 tags are used to add metadata, such as the title, artist, or track number, to digital audio files. ...

Spyware in prior versions

At one point, DivXNetworks offered for download an "ad supported" version of their DivX Professional product free of charge to users who were willing to view advertisements. The adverts were delivered by the GAIN ad server software. While this attracted much criticism at the time, users had to manually select the "ad supported" download rather than the for-pay professional version or the free version. Additionally, users were informed during installation of the ad-supported version that the Gator software would be installed on their PC and were presented with a license agreement to which they had to consent in order to continue the installation. Regardless, the Gator software would still install parts of itself without the user agreeing to this installation, and was difficult to remove after installation. This raised considerable consternation amongst DivX users, causing many to turn to its free software rival, Xvid. The latter is freely available without installing adware and has been demonstrated in independent comparisons to produce better quality output (see section on competitors below). Claria Corporation (formerly Gator Corporation) is an advertising software company based in Redwood City, California. ... This article is about advertising-supported software. ... Free software is software that can be used, studied, and modified without restriction, and which can be copied and redistributed in modified or unmodified form either without restriction, or with restrictions only to ensure that further recipients can also do these things. ... Xvid (formerly XviD) is a video codec library following the MPEG-4 standard. ... This article is about the video codec. ...

Due to the generally hostile opinion towards spyware on the Internet, DivXNetworks announced on the DivX web site that, from July 15, 2004, no further DivX software would incorporate any adware.^[4] Free versions of DivX Pro before 5.2 typically contained spyware. From 5.2 onwards, including version 6, no spyware was included. When accessed in April 2007, the Professional version of DivX was only available in the form of a paid release or a 15-day free trial with no adware included. The DivX Player remains available in a long-term free license. is the 196th day of the year (197th in leap years) in the Gregorian calendar. ... Year 2004 (MMIV) was a leap year starting on Thursday of the Gregorian calendar. ...

Current version

The current version of the DivX Community Codec for the Windows platform is version 6.7, and for Mac OS X is 6.6, both available from the DivX website. The latest version of the DivX package for Windows 2000/XP (which contains DivX Player 6.6, DivX Community Codec 6.7, and DivX Web Player 1.4) is version 6.7, released November, 2007. DivX Player 6.5 now fixes the problem of the player forcing Vista out of Aero mode (although the Web Player still has this problem as of version 1.3.1). The latest version of the DivX package for Mac OS X (which contains DivX Player 2.0, DivX Community Codec 6.6.0, DivX Converter 1.2 and DivX Web Player 1.3.1) is version 6.7, released May 30, 2007. In addition, an unofficial DivX for Linux codec update has also been released at version 6.1.1.^[5] The DivX codec and DivX Player are available for free at the DivX website. Paying customers can access additional features of the DivX codec in the registered version, known as DivX Pro, and can also use DivX Converter, a one-click encoding application as a revamp of Dr.DivX and associated encoding tools (such as the Electrokompressiongraph, or EKG, which helped increase the viewability of highly compressed high-motion scenes). The latest version of DivX Converter for Windows is 6.2.1, and the latest version of DivX Converter for Mac is 1.2. Current versions however do access a domain name server.^{[citation needed]} Windows 2000 (also referred to as Win2K) is a preemptive, interruptible, graphical and business-oriented operating system designed to work with either uniprocessor or symmetric multi-processor computers. ... Windows XP is a line of operating systems developed by Microsoft for use on general-purpose computer systems, including home and business desktops, notebook computers, and media centers. ... Year 2007 (MMVII) is the current year, a common year starting on Monday of the Gregorian calendar and the AD/CE era in the 21st century. ... Mac OS X (pronounced ) is a line of graphical operating systems developed, marketed, and sold by Apple Inc. ... is the 150th day of the year (151st in leap years) in the Gregorian calendar. ... Year 2007 (MMVII) is the current year, a common year starting on Monday of the Gregorian calendar and the AD/CE era in the 21st century. ... This article is about operating systems that use the Linux kernel. ... DivX Player is a standalone media player for DivX encoded video. ...

Web player

Recently DivX has also released the DivX Web Player 1.0.1 (formerly known as the DivX Browser Plug-In Beta) via the DivX Labs website, demonstrating 720p HD playback live inside major browsers for Windows and Mac OS.^[6] Dr DivX 2 OSS, an Open Source DivX transcoding application, is available from SourceForge.^[7]

Gaming System compatibility

On November 13, 2007, DivX announced that the DivX video technology will be integrated into the Sony PlayStation 3 video game console. Press Release

Profiles

DivX has defined many profiles, which are sets of MPEG-4 features as determined by DivX. Because the grouping is different from what is specified in the MPEG-4 standard, there is a DivX-specific device certification process for device manufacturers. ^[8] DivX's profiles differ from the standardized profiles of the ISO/IEC MPEG-4 international standard.

JOHN HERMAN SUCKS FAT DICK ... wow mike is a flamming home i wish i wasnt his friend. ... A megabit per second (mbps or mbit/s) is a unit of data transmission equal to 1,000 kilobits per second or 1,000,000 bits per second. ... A kibibyte (a contraction of kilo binary byte) is a unit of information or computer storage, commonly abbreviated KiB (never kiB). 1 kibibyte = 210 bytes = 1,024 bytes The kibibyte is closely related to the kilobyte, which can be used either as a synonym for kibibyte or to refer to...

Encoding applications

The original closed source Dr.DivX terminated at version 1.06 for DivX 5.21, that was the last version of DivX capable of running under Windows 9x/Me. Work on an open source version has begun. Dr.DivX OSS offers greatly expanded features over the free DivX Converter application, that was bundled with the codec from version 6 onwards.^[9]

Other applications exist, such as AutoGK, VirtualDub and DVDx. Gordian Knot is an integrated package for DVD to DivX/XviD/x264 encoding. ... VirtualDub is an open source video capture and linear processing tool for Microsoft Windows. ... There are very few or no other articles that link to this one. ...

Open source

An open source version of the codec—called OpenDivX—was released by DivX in early 2001, and this version served as the basis for the open source Xvid codec, the source code of which is largely maintained by Xvid Solutions. XviD is an open source MPEG-4 video codec originally based on OpenDivX. XviD was started by a group of volunteer programmers after the OpenDivX source was closed in July 2001. ...

Competitors

The main competitors in the proprietary commercial video compression software market are Microsoft's Windows Media Video series, Apple Inc.'s QuickTime, and the RealNetworks RealVideo series. Windows Media Video (WMV) is a generic name for the set of video codec technologies developed by Microsoft. ... Apple Inc. ... QuickTime is a multimedia framework developed by Apple Inc. ... This article does not cite any references or sources. ... RealVideo is a proprietary video format developed by RealNetworks. ...

While DivX has long been renowned for its excellent video quality, its free and open source equivalent Xvid today offers even more advanced quality, also based on MPEG-4 Part 2 (MPEG-4 ASP). In a series of subjective quality tests at Doom9.org, the DivX codec has been successively beaten by Xvid every year since 2003.^[10] Free software is software that can be used, studied, and modified without restriction, and which can be copied and redistributed in modified or unmodified form either without restriction, or with restrictions only to ensure that further recipients can also do these things. ... Xvid (formerly XviD) is a video codec library following the MPEG-4 standard. ...

The open source library libavcodec can decode and encode MPEG-4 video that can be encoded and decoded with DivX (and other MPEG-4 codecs, such as Xvid or libavcodec MPEG-4). Combined with image postprocessing code from the MPlayer project, it has been packaged into a DirectShow filter called ffdshow, which can be used for playback with most Windows video players. This library is highly customizable and offers a great variety of features to advanced users. libavcodec is a free software/open source LGPL-licensed library of codecs for encoding and decoding video and audio data; it is written in the C programming language. ... This article is about the open source media player. ... Logo of the DirectX Media SDK - the first time DirectShow was distributed under its current name. ... ffdshow is an open source decoder (and encoder) mainly used for the fast and high-quality decoding of video in the MPEG-4 ASP (e. ... The following tables compare general and technical information for a number of media player programs. ...

Since the standardization of H.264/MPEG-4 AVC, also known as MPEG-4 Part 10, a new generation of codecs has arisen, such as x264 and Nero AG's Nero Digital AVC codec. Despite being at a relatively early stage of development, these codecs out-performed DivX in Doom9's 2005 quality test, thanks to the more advanced features of MPEG-4 Part 10. Part 10's advanced features come at a cost: AVC decoding is two to three times more CPU intensive compared to MPEG-4 ASP; lightweight algorithms used in faster modes of DivX (or Xvid) codec allow one to achieve reasonable quality in a small fraction of time required to take advantage of all features of AVC. It remains to be seen whether DivX will release a new codec based on the newer specification, like the Xvid team did with their Xvid AVC codec (not yet released to the public).^{[citation needed]} H.264 is a standard for video compression. ... x264 is a free software library for encoding H.264/MPEG-4 AVC video streams. ... Nero AG is a German software company based in Karlsbad, Germany. ... Nero Digital is a suite of MPEG-4-compatible video and audio compression codecs integrated into a DVD ripping tool, Recode 2. ...

Stage6

Stage6 is a video sharing website first launched by DivX, Inc. in 2006 and currently in beta. It is similar to sites like YouTube in allowing streaming video to be uploaded freely by anyone who is willing to register. Significant differences between Stage6 and other sites include better quality video through use of higher resolutions up to 1080p, very large upload limits, and the option to download media directly through the website or the DivX Web Player without the need to install browser extensions. Stage6 is a video sharing website first launched by DivX, Inc. ... DivX, Inc. ... YouTube is a popular video sharing website where users can upload, view and share video clips. ...

See also

This table compares features of container formats. ... The following is a list of codecs. ... Comparison of video codecs - is a process of codecs evaluation of similarities and differences. ... A container format is a computer file format that can contain various types of data, compressed by means of standardized codecs. ... FFmpeg is a collection of software libraries that can record, convert and stream digital audio and video in numerous formats. ... ffdshow is an open source decoder (and encoder) mainly used for the fast and high-quality decoding of video in the MPEG-4 ASP (e. ...

References

is the 74th day of the year (75th in leap years) in the Gregorian calendar. ... Year 2001 (MMI) was a common year starting on Monday (link displays the 2001 Gregorian calendar). ... is the 342nd day of the year (343rd in leap years) in the Gregorian calendar. ... Year 2006 (MMVI) was a common year starting on Sunday of the Gregorian calendar. ...

External links

Categories: All articles with unsourced statements | Articles with unsourced statements since May 2007 | Articles with unsourced statements since September 2007 | Video codecs | Multimedia frameworks | Windows media players | Subtitle file formats The Open Directory Project (ODP), also known as dmoz (from , its original domain name), is a multilingual open content directory of World Wide Web links owned by Netscape that is constructed and maintained by a community of volunteer editors. ... Source coding redirects here. ... Look up Implementation in Wiktionary, the free dictionary. ... A video codec is a device or software that enables video compression and or decompression for digital video. ... Comparison of video codecs - is a process of codecs evaluation of similarities and differences. ... MPEG-4 Part 2 is a video compression technology developed by MPEG. It belongs to the MPEG-4 ISO/IEC standard (ISO/IEC 14496-2). ... 3ivx is a video codec created by 3ivx Technologies. ... Nero Digital is a suite of MPEG-4-compatible video and audio compression codecs integrated into a DVD ripping tool, Recode 2. ... FFmpeg is a collection of software libraries that can record, convert and stream digital audio and video in numerous formats. ... HDX4 is a MPEG4 codec developed by a German company named Jomigo Visual Technology. ... Xvid (formerly XviD) is a video codec library following the MPEG-4 standard. ... H.264 is a standard for video compression. ... CoreAVC is a video decoder developed by CoreCodec which implements the MPEG-4 AVC standard (also known as H.264) used, for example, in next-generation video disc formats HD DVD and Blu-Ray. ... Nero Digital is a suite of MPEG-4-compatible video and audio compression codecs integrated into a DVD ripping tool, Recode 2. ... QuickTime is a multimedia framework developed by Apple Inc. ... x264 is a free software library for encoding H.264/MPEG-4 AVC video streams. ... Lossless data compression is a class of data compression algorithms that allows the exact original data to be reconstructed from the compressed data. ... CorePNG is a lossless codec based on PNG. Essentially, each frame is compressed as a PNG, so if PNG does it, this codec does too. ... FFV1, which represents FF video codec 1, is an experimental video encoder and decoder employing relatively high compression that is lossless and intra-frame only. ... Huffyuv (or HuffYUV) is a lossless video codec created by Ben Rudiak-Gould which is meant to replace uncompressed YCbCr as a video capture format. ... Lagarith is an open source lossless video codec written by Ben Goldman. ... MSU Lossless video codec is an lossless video codec written by MSU Graphics&Media Lab Video Group. ... Compressed with Cinepak, quality 40% Cinepak is a video codec, developed by Radius Inc to accommodate 1x (150 kbyte/s) CD-ROM transfer rates. ... The Sorenson codec (also known as Sorenson Video Codec, Sorenson Video Quantizer or SVQ) is a digital video codec devised by the company Sorenson Media and used by Apples QuickTime and the newest version of Macromedia Flash, a special version called Sorenson Spark. ... Dirac is a prototype algorithm for the encoding and decoding (see codec) of raw video. ... Indeo Video (commonly known now simply as Indeo) is a video codec developed by Intel in 1992. ... VP3 was originally a proprietary video codec developed by On2 Technologies. ... TrueMotion VP7 is a video codec developed by On2 Technologies as a successor to earlier efforts such as VP3, VP5 and TrueMotion VP6. ... Pixlet is a video codec created by Apple Computer and based on wavelets, designed to enable viewing of full resolution, high resolution movies in real time at low DV data rates. ... RTVideo RTVideo is Microsofts default video codec for OCS. RTVideo is a proprietrary codec. ... Snow is an experimental video codec developed by Michael Niedermayer for the FFmpeg package. ... Ogg is an open standard for a free container format for digital multimedia, unrestricted by software patents and designed for efficient streaming and manipulation. ... Theora is a video codec being developed by the Xiph. ... Windows Media Video (WMV) is a generic name for the set of video codec technologies developed by Microsoft. ... An audio codec is a computer program that compresses/decompresses digital audio data according to a given audio file format or streaming audio format. ... The following tables compare general and technical information for a variety of audio codecs. ... Audio compression is a form of data compression designed to reduce the size of audio files. ... Pulse-code modulation (PCM) is a modulation technique. ... ATRAC (Adaptive TRansform Acoustic Coding) is a family of proprietary audio compression algorithms used to store information on MiniDiscs and other Sony-branded audio players. ... Dolby Digital is the marketing name for a series of lossy audio compression technologies by Dolby Laboratories. ... DTS Coherent Acoustics is the full name for the audio format standard usually known as just DTS. It is covered in U.S. Patent 5,956,674. ... Musepack or MPC is an open source lossy audio codec, specifically optimized for transparent compression of stereo audio at bitrates of 160-180 kbit/s. ... TwinVQ (transform-domain weighted interleaved vector quantization) is an audio compression technique developed by Nippon Telegraph and Telephone Corporation (NTT). ... Vorbis is an open source, lossy audio codec project headed by the Xiph. ... Windows Media Audio (WMA) is an audio data compression technology developed by Microsoft. ... Speech coding is the compression of speech (into a code) for transmission with speech codecs that use audio signal processing and speech processing techniques. ... The Internet Low Bit Rate Codec (iLBC) is a royalty free narrowband speech codec, developed by Global IP Sound (GIPS). ... IMBE a is speech coding standard. ... iSAC is a wideband speech codec, developed by Global IP Sound (GIPS). ... QCELP is a speech codec developed in 1994 to increase the speech quality of the IS-96A codec used earlier in CDMA networks. ... RTAudio is a Microsoft produced adaptive wide-band speech codec. ... Speex is a free software speech codec that may be used on VoIP applications and podcasts. ... Truespeech is a proprietary audio codec produced by the DSP Group. ... Lossless data compression is a class of data compression algorithms that allows the exact original data to be reconstructed from the compressed data. ... Apple Lossless (also known as Apple Lossless Encoder, ALE, or Apple Lossless Audio Codec, ALAC) is an audio codec developed by Apple Inc. ... Dolby TrueHD logo Dolby TrueHD, from Dolby Laboratories, is an advanced lossless multi-channel audio codec, intended primarily for high-end home-entertainment equipment, such as Blu-ray Disc and HD DVD. In this application, Dolby TrueHD competes with DTS-HD Master Audio, another lossless codec from Digital Theater System. ... DTS logo DTS (also known as Digital Theater Systems), owned by DTS, Inc. ... FLAC, an acronym for Free Lossless Audio Codec, is a popular file format for audio data compression. ... Monkeyâ€™s Audio is a file format for audio data compression. ... Please wikify (format) this article as suggested in the Guide to layout and the Manual of Style. ... True Audio (abbreviated TTA) is a free, simple real-time lossless audio codec, based on adaptive prognostic filters which has shown satisfactory results comparing to majority of modern analogs. ... WavPack is a free, open source lossless audio compression format developed by David Bryant. ... Windows Media Audio 9 Lossless is a lossless data lossless audio codec by Microsoft, released in early 2003. ... It has been suggested that this article or section be merged into Comparison of file archivers. ... The following tables compare general and technical information for a number of file archivers. ... Open source refers to projects that are open to the public and which draw on other projects that are freely available to the general public. ... 7-Zip is an open source file archiver designed originally for the Microsoft Windows operating system, and later made available to other systems. ... Ark is an archiving tool for KDE, included into kdeutils package. ... File-roller is an archive manager for the GNOME environment. ... Info-ZIP is an open source version of Phil Katzs deflate and inflate routines used in his popular file compression program, PKZIP. The free code released by the Info-ZIP project under a BSD license spawned a horde of PKZIP imitators (WinZip, PicoZip, PowerArchiver, Turbozip, PowerZip and many more... KGB Archiver is an open-source file archiver and data compression utility created by Tomasz Pawlak. ... PeaZip is an open source OS-portable file archiver, released under LGPL for Microsoft Windows and Linux (Linux version requires libgdk_pixbuf library). ... The Unarchiver is an open source data compression utility, which supports more formats than BOMArchiveHelper, the built-in archive unpacker program in Mac OS X. It can also handle filenames in foreign character sets, created with non-English versions of other operating systems. ... The term Freeware refers to gratis proprietary software with closed source. ... 7zX is a file archiver for Mac OS X that handles the 7z archive file format. ... In computing, DGCA is a freeware compression utility created in 2001 by Shin-ichi Tsuruta (鶴田真一, Shin-ichi Tsuruta). ... This article needs to be cleaned up to conform to a higher standard of quality. ... In computing, GCA is a freeware compression utility created in 2000 by Shin-ichi Tsuruta. ... IZArc is a freeware file archiver for Microsoft Windows. ... StuffIt Expander used to be a freeware, closed source data compression software utility developed by Allume Systems (formerly Aladdin Systems) It runs in Mac OS Classic, Mac OS X, Microsoft Windows, and Linux/UNIX. It does not compress files. ... TUGZip is a freeware file archiver for Microsoft Windows. ... ZipGenius is a freeware file archiver designed for Microsoft Windows users, developed by Matteo Riso of M.Dev Software. ... UHarc is a solid, high-compression 386+ DOS and Windows file archiver with multimedia support. ... Proprietary software is software with restrictions on copying and modifying as enforced by the proprietor. ... ALZip is an archive and compression utility from ESTsoft for Microsoft Windows. ... Archive Utility (BOMArchiveHelper until Mac OS X 10. ... Due to the Mac OS forked file structure, transferring Mac OS files to non-Macintosh computers is problematic. ... PowerArchiver is a proprietary file archiver designed for Microsoft Windows users, developed by ConeXware Inc. ... Squeez is a shareware file archiver and data compression utility by Speedproject. ... StuffIt is a family of software utilities for archiving and compressing files on the Apple Macintosh, Microsoft Windows and Linux platforms: it was originally produced for the Macintosh and remains common on that platform. ... WinAce is an archiving program with its own relatively powerful ACE compression format and built-in support for other common archive formats types such as ZIP, RAR and MS-CAB. The Mac OS X and Linux versions are called Unace and are command line programs. ... WinRAR is a shareware file archiver and data compression utility by Eugene Roshal. ... WinRK is a commercial file archiver program for Microsoft Windows. ... WinZip Computing Inc. ... This article or section does not adequately cite its references or sources. ... ARC is a file format by SEA (System Enhancement Associates) that was very popular before Phil Katzs introduction of the ZIP format. ... ARJ is a tool for creating compressed file archives. ... JAR is a tool for creating compressed file archives. ... The correct title of this article is . ... Categories: Disambiguation | Software stubs | Data compression software ... gzip is a software application used for file compression. ... Info-ZIP is an open source version of Phil Katzs deflate and inflate routines used in his popular file compression program, PKZIP. The free code released by the Info-ZIP project under a BSD license spawned a horde of PKZIP imitators (WinZip, PicoZip, PowerArchiver, Turbozip, PowerZip and many more... LHA is a freeware compression utility and associated file format. ... LZOP is a free software file compression tool which uses LZO and is under the GPL license. ... PAQ is a series of open source data compression archivers that have evolved through collaborative development to top rankings on several benchmarks measuring compression ratio (although at the expense of speed and memory usage). ... PKZIP is an archiving tool originally written by the late Phil Katz, and marketed by his company PKWARE, Inc. ... RAR redirects here. ... Smart Bitrate Control, commonly referred to as SBC, is a technique for achieving greatly improved video compression efficiency using the DivX;-)3. ... UPX, the Ultimate Packer for eXecutables, is an open source executable packer (EXE packer) supporting a number of file formats. ...

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