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Xiph.Org Foundation

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Nonprofit multimedia format organization

Xiph.Org Foundation
Founded1994; 31 years ago (1994)
FounderChristopher Montgomery
Type501(c)(3)
Location
Area served
Worldwide
ProductsFreemultimedia formats, libraries, and streaming software
Key people
Christopher Montgomery,Jack Moffitt, Ralph Giles (Theora), Jean-Marc Valin (Speex,CELT,Opus),[1] Josh Coalson (FLAC), Michael Smith, Timothy B. Terriberry[2][3][4][5]
Websitexiph.org

TheXiph.Org Foundation is anonprofit organization that producesfreemultimedia formats and software tools. It focuses on theOgg family of formats, the most successful of which has beenVorbis, an open and freely licensed audio format andcodec designed to compete with the patentedWMA,MP3 andAAC. As of 2013, development work was focused onDaala, an open and patent-free video format and codec designed to compete withVP9 and the patentedHigh Efficiency Video Coding.

In addition to its in-house development work, the foundation has also brought several already-existing but complementaryfree software projects under its aegis, most of which have a separate, active group of developers. These includeSpeex, an audio codec designed for speech, andFLAC, a lossless audio codec.

The Xiph.Org Foundation has criticizedMicrosoft and theRIAA for their lack of openness.[6] They state that if companies like Microsoft had ownedpatents on the Internet, then other companies would have tried to compete, and "The Net, as designed by warring corporate entities, would be a battleground of incompatible and expensive 'standards' had it actually survived at all." They also criticize the RIAA for their support of projects such as theSecure Digital Music Initiative.

In 2008, theFree Software Foundation listed the Xiph.Org projects asHigh Priority Free Software Projects.[7]

History

[edit]

Chris Montgomery, creator of theOgg container format, founded the Xiphophorus company and later the Xiph.Org Foundation.[8] The first work that became the Ogg media projects started in 1994.[9] The name "Xiph" abbreviates the original organizational name, "Xiphophorus", named after thecommon swordtail fish,Xiphophorus hellerii.[10] It was officially incorporated on 15 May 1996 as Xiphophorus, Inc.[11] The name "Xiphophorus company" was used until 2002,[12][13][14] when it was renamed to Xiph.Org Foundation.[15]

In 1999, the Xiphophorus company defined itself on its website as"a distributed group of Free and Open Source programmers working to protect the foundations of Internet multimedia from domination by self-serving corporate interests."[16]

In 2002, the Xiph.Org Foundation defined itself on its website as"a non-profit corporation dedicated to protecting the foundations of Internet multimedia from control by private interests."[15]

In March 2003, the Xiph.Org Foundation was recognized by theIRS as a 501(c)(3) Non-Profit Organization,[17] which means that U.S. citizens can deduct donations made to Xiph.Org from their taxes.

Xiph.Org Foundation projects

[edit]
  • Ogg – a multimediacontainer format, areference implementation, and the native file and stream format for the Xiph.org multimedia codecs
    • Vorbis – a lossyaudio compression format and codec
    • Theora – a lossyvideo coding format and codec
    • FLAC – a lossless audio compression format and software
    • Speex – a lossyspeech encoding format and software (deprecated)
    • CELT – an ultra-low delay lossy audio compression format that has been merged into Opus, and is now obsolete
    • Opus – a low delay lossy audio compression format originally intended forVoIP
    • Tremor – an integer-only implementation of the Vorbis audio decoder for embedded devices (software)
    • OggPCM – an encapsulation ofPCM audio data inside the Ogg container format
    • Skeleton – a structuring information for multi-track Ogg files (a logical bitstream within an Ogg stream)[18]
    • RTP payloads – containers for Vorbis, Theora, Speex and Opus.
    • CMML – an XML-based markup language for time-continuous data (a timed text codec; deprecated)
    • Ogg Squish – a lossless audio compression format and software (discontinued)
    • Tarkin – an experimental lossy video coding format; no stable release (discontinued)[19]
    • Daala – avideo coding format and codec[20]
    • Kate – an overlay codec that can carry animated text and images.
  • libao – an audio-output library that operates on different platforms[21]
  • Annodex – an encapsulation format, which interleaves time-continuous data with CMML markup in a streamable manner
  • Icecast – an open source multi-platform streaming server (software)
  • Ices – a source client for broadcasting in Ogg Vorbis or MP3 format to an icecast2 server (software)
  • IceShare – an unfinished peercasting system for Ogg multimedia (no longer maintained)
  • cdparanoia – an open sourceCD Audio extraction tool that aims to be bit-perfect (currently unmaintained)
  • XSPF – an XML Shareable Playlist Format

OpenCodecs

[edit]

OpenCodecs is a software package for Windows adding DirectShow filters for theTheora andWebM codecs. It adds Theora and WebM support toWindows Media Player and enablesHTML video inInternet Explorer. It consists of:

  • dshow, Xiph'sDirectShow filters for their suite ofOgg formats, including Theora andVorbis
  • webmdshow, the DirectShow filter for WebM maintained by the WebM project
  • AnActiveX plugin adding HTML video capability to Internet Explorer older than version 9

QuickTime Components

[edit]

Xiph QuickTime Components are implementations of theOgg container along with theSpeex,Theora,FLAC andVorbiscodecs forQuickTime. It allows users to use Ogg files in any application that uses QuickTime for audio and video file support, such asiTunes andQuickTime Player.

Since QuickTime Components do not function inmacOS Sierra and above, the project was discontinued in 2016.[22]

References

[edit]
  1. ^Xiph.Orgpeople.xiph.org - personal webspace of the xiphs - Jean-Marc Valin, Retrieved 2009-09-11
  2. ^Timothy B. Terriberry (2009)."people.xiph.org - Timothy B. Terriberry, Ph.D." Xiph.Org. RetrievedSeptember 11, 2009.
  3. ^"Summer of Code Mentoring". Xiph.Org. 2009. RetrievedSeptember 11, 2009.
  4. ^"Minutes of the Xiph.org Monthly Meeting for May 2003". May 10, 2003. RetrievedSeptember 11, 2009.
  5. ^"Minutes of the Xiph.org Monthly Meeting for September 2003". Xiph.Org. September 16, 2003. RetrievedSeptember 11, 2009.
  6. ^"About".xiph.org. RetrievedMarch 5, 2011.
  7. ^"High Priority Free Software Projects". Free Software Foundation. RetrievedAugust 25, 2008.
  8. ^"Xiph.org: Contact information". Xiph.org. RetrievedAugust 25, 2008.
  9. ^"A Challenger to MP3?". Tristan Louis. January 16, 2001. Archived fromthe original on June 17, 2013. RetrievedSeptember 2, 2008.
  10. ^"naming". Xiph.org.Archived from the original on February 2, 2012. RetrievedAugust 25, 2008.
  11. ^"XIPHOPHORUS, INC. :: Massachusetts (US)".OpenCorporates. RetrievedNovember 6, 2022.
  12. ^Brian Zisk (April 19, 2000)."vorbis - Dvorak Interviews Monty". RetrievedSeptember 4, 2008.
  13. ^Advogado (April 4, 2000)."Interview: Christopher Montgomery of Xiphophorus". Advogado. Archived fromthe original on June 28, 2017. RetrievedSeptember 2, 2009.
  14. ^Xiphophorus company (December 12, 2001)."Xiphophorus home". Archived fromthe original on December 12, 2001. RetrievedSeptember 2, 2009.
  15. ^abXiph.org Foundation (November 27, 2002)."Xiph.org home". Archived fromthe original on November 27, 2002. RetrievedSeptember 2, 2009.
  16. ^Xiphophorus company (November 28, 1999)."Xiphophorus home". Archived fromthe original on November 28, 1999. RetrievedSeptember 2, 2009.
  17. ^Xiph.Org (2003-03-24)Speex reaches 1.0; Xiph.Org now a 501(c)(3) Non-Profit Organization, Retrieved 2009-09-01
  18. ^"Ogg Skeleton 4 - XiphWiki".wiki.xiph.org. RetrievedNovember 6, 2022.
  19. ^Michael Smith (2005-08-29)Tarkin, vorbis-dev mailinglist, Retrieved 2009-09-06
  20. ^"Xiph.org :: daala video".xiph.org. RetrievedNovember 6, 2022.
  21. ^"libao: a cross platform audio library". Xiph.Org. RetrievedJune 29, 2009.Libao is a cross-platform audio library that allows programs to output audio using a simple API on a wide variety of platforms.
  22. ^"XiphQT discontinued".Xiph.org. June 13, 2016.

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