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Xiph.Org Foundation
XiphophorusLogoSVG.svg
Founders Christopher Montgomery
Type 501(c)(3)
Founded 1994
Headquarters Somerville, Massachusetts, United States
Staff Christopher Montgomery, Jack Moffitt, Ralph Giles (Theora), Jean-Marc Valin (speex, CELT)[1], Josh Coalson (FLAC), Michael Smith, Timothy Terriberry[2][3][4][5]
Area served Worldwide
Products Ogg, Vorbis, Theora, Speex, FLAC, CELT, Ogg Writ, Icecast, cdparanoia, etc.
Website http://www.xiph.org

Xiph.Org Foundation is a non-profit organization[6] that produces free multimedia formats and software tools. It focuses on the Ogg family of formats, the most successful of which has been Vorbis, an open and patent-free audio format and codec designed to compete with the patented MP3 and AAC. Current development work is focusing on Theora, an open and patent-free video format and codec designed to compete with the patented MPEG-4, RealVideo, and Windows Media Video.

In addition to its in-house development work, the Foundation has also brought several already-existing but complementary free software projects under its aegis, most of which have a separate, active group of developers. These include Speex, an audio codec designed for speech, and FLAC, a lossless audio codec.

In 2008 the Free Software Foundation listed the Xiph.Org projects as High Priority Free Software Projects.[7]

Contents

History

Chris Montgomery, creator of the Ogg 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 the common swordtail fish, Xiphophorus hellerii.[10] The name "Xiphophorus company" was used until 2002,[11][12][13] when it was renamed to Xiph.Org Foundation.[14]

In 1999 the Xiphophorus company defined itself on xiph.org 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".[15] In 2002 the Xiph.Org Foundation defined itself on xiph.org website as "a non-profit corporation dedicated to protecting the foundations of Internet multimedia from control by private interests".[14]

In March 2003, the Xiph.Org Foundation has been recognized by the IRS as a 501(c)(3) Non-Profit Organization.[16]

Xiph.Org Foundation projects

  • Ogg - a multimedia container format, a reference implementation, and the native file and stream format for the Xiph.org multimedia codecs
    • Vorbis - a lossy audio compression format and software
    • Theora - a lossy video compression format and software
    • FLAC - a lossless audio compression format and software
    • Speex - a lossy speech compression format and software
    • CELT - an ultra-low delay lossy audio compression format and software
    • Tremor - an integer-only implementation of the Vorbis audio decoder for embedded devices (software)
    • OggPCM - an encapsulation of PCM audio data inside the Ogg container format
    • OggUVS - an uncompressed video codec for Ogg (a work in progress and not a final proposal)
    • Skeleton[17] - a structuring information for multitrack Ogg files (a logical bitstream within an Ogg stream)
    • RTP-containers for Vorbis, Theora, Speex
    • CMML - an XML-based markup language for time-continuous data (a timed text codec)
    • Ogg Writ - a text phrase codec (no longer maintained)
    • Ogg Squish - a lossless audio compression format and software (discontinued)
    • Tarkin - an experimental lossy video compression; no stable release (discontinued)[18]
  • libao, an audio-output library that operates on different platforms[19]
  • Xiph QuickTime Components - an implementation of the Ogg container along with the Speex, Theora, FLAC and Vorbis codecs for QuickTime (software)
  • Annodex - an encapsulation format, which interleaves time-continuous data with CMML markup in a streamable manner
  • cdparanoia - a compact disc ripper (software)
  • XSPF - a playlist format for digital media
  • 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)

References

  1. ^ Xiph.org people.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. http://people.xiph.org/~tterribe/index.html. Retrieved 2009-09-11.  
  3. ^ "Summer of Code Mentoring". Xiph.Org. 2009. http://wiki.xiph.org/Summer_of_Code_Mentoring#What_criteria_did_you_use_to_select_these_individuals_as_mentors.3F_Please_be_as_specific_as_possible.. Retrieved 2009-09-11.  
  4. ^ "Minutes of the Xiph.org Monthly Meeting for May 2003". 2003-05-10. http://www.xiph.org/minutes/2003/may/. Retrieved 2009-09-11.  
  5. ^ "Minutes of the Xiph.org Monthly Meeting for September 2003". Xiph.Org. 2003-09-16. http://www.xiph.org/minutes/2003/september/. Retrieved 2009-09-11.  
  6. ^ "Fundraising". Xiph.org. http://xiph.org/donate. Retrieved 2008-08-25.  
  7. ^ "High Priority Free Software Projects". Free Software Foundation. http://www.fsf.org/campaigns/priority.html. Retrieved 2008-08-25.  
  8. ^ "Xiph.org: Contact information". Xiph.org. http://www.xiph.org/contact/. Retrieved 2008-08-25.  
  9. ^ "A Challenger to MP3?". Tristan Louis. 2001-01-16. http://www.tnl.net/who/bibliography/vorbis/. Retrieved 2008-09-02.  
  10. ^ "naming". Xiph.org. http://xiph.org/xiphname. Retrieved 2008-08-25.  
  11. ^ Brian Zisk (2000-04-19). "vorbis - Dvorak Interviews Monty". http://lists.xiph.org/pipermail/vorbis/2000-April/012573.html. Retrieved 2008-09-04.  
  12. ^ Advogado (2000-04-04). "Interview: Christopher Montgomery of Xiphophorus". Advogado. http://www.advogato.org/article/56.html. Retrieved 2009-09-02.  
  13. ^ Xiphophorus company (2001-12-12). "Xiphophorus home". Archive.org. http://web.archive.org/web/20011212024227/http://www.xiph.org/index.html. Retrieved 2009-09-02.  
  14. ^ a b Xiph.org Foundation (2002-11-27). "Xiph.org home". Archive.org. http://web.archive.org/web/20021127233506/http://www.xiph.org/. Retrieved 2009-09-02.  
  15. ^ Xiphophorus company (1999-11-28). "Xiphophorus home". Archive.org. http://web.archive.org/web/19991128204405/http://xiph.org/. Retrieved 2009-09-02.  
  16. ^ Xiph.Org (2003-03-24) Speex reaches 1.0; Xiph.Org now a 501(c)(3) Non-Profit Organization, Retrieved 2009-09-01
  17. ^ http://wiki.xiph.org/index.php/Ogg_Skeleton
  18. ^ Michael Smith (2005-08-29) Tarkin, vorbis-dev mailinglist, Retrieved 2009-09-06
  19. ^ "libao: a cross platform audio library". Xiph.Org. http://www.xiph.org/ao/. Retrieved 2009-06-29. "Libao is a cross-platform audio library that allows programs to output audio using a simple API on a wide variety of platforms."  

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