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In an effort to bring open-source ideals to the world of multimedia the Xiph.Org Foundation develops a multitude of amazing products. This wiki describes our free and open protocols and software.



Contents

  • 1 Demonstrations of Xiph technologies
  • 2 Projects/Formats
    • 2.1 Container Formats
    • 2.2 Codecs
    • 2.3 Software
    • 2.4 Community
    • 2.5 Work in Progress
  • 3 Project management
  • 4 Resources for Video and Audio programmers
  • 5 Wiki internal

Demonstrations of Xiph technologies

Want to hear or see Xiph in action? These projects are using our codecs, formats, or libraries.

  • Vorbis Streams: Stations streaming with the Vorbis codec
  • Games that use Vorbis: Games using the Vorbis codec for music or sound effects
  • Vorbis Hardware: Hardware players using the Vorbis codec
  • Vorbis Software Players: list of media players with out-of-box support for Vorbis
  • Theora Hardware: Hardware using the Theora video codec
  • Theora Software Players: list of media players with Theora support
  • List of Theora videos: Sources for video encoded with Theora

Projects/Formats

Container Formats

  • Ogg: Media container. This is our native format and the recommended container for Xiph codecs.
    • Ogg Skeleton: Skeleton information on all logical content bitstreams in Ogg.
    • Specification of MIME types and respective codecs parameter
  • SpeexRTP: RTP payload format for voice
  • VorbisRTP: RTP payload format for general audio
  • TheoraRTP: RTP payload format for video
  • XSPF: XML Sharable Playlist Format

Codecs

  • Compressed Audio/Video Codecs:
    • Vorbis: Audio codec with a fixed point decoder
    • Theora: Video codec
    • FLAC: Free Lossless Audio Codec
    • Speex: Speech codec
  • Uncompressed Audio/Video Codecs:
    • OggPCM: Audio codec
  • Timed Text/Metadata Codecs:
    • CMML: Continuous Media Markup Language, used for Annodex and subtitles (xine, vlc, gstreamer, and DirectShow support)
    • Kate: new format for lyrics and subtitles

Software

  • Software for distributing media
    • Icecast: Streaming server
    • Ices: Source client for Icecast servers
  • Libraries
    • OggPlay: library for synchronised Xiph media playback
    • XiphQT: Quicktime component to play the main Xiph formats
    • VorbisCommentEdit: Macintosh Framework making it easy to incorporate the editing of Vorbis Comments
  • Other software
    • OggComponent/VorbisComponent: Wrappers to integrate Vorbis into Mac OS X (does not yet support encoding)
    • cdparanoia: CDDA extractor/ripper

Community

  • How to help
  • Spread Open Media: project to promote Xiph formats.
    • MailOgging: provides templates for anyone willing to contact a company requesting them to add support for Xiph formats.
  • People: Who's who in Xiph.

Work in Progress

  • Work In Progress: codecs and software still in the research and development stages.
  • Todo: To-do list for various Xiph projects.

Project management

  • AdminProcesses: who's in charge of what project
  • MonthlyMeeting: page with information on Xiph's MonthlyMeeting
  • MailingLists: list of Xiph's mailing lists
  • Bounties: list of bounties that you can take to improve Xiph's projects

Resources for Video and Audio programmers

  • Ambisonics: page with technical information on Ambisonics
  • Courses and papers on Audio, Music and Speech: page with links to MIT and other universities' content
  • Oggless: for ideas on how to use the different Xiph codecs outside Ogg

Wiki internal

  • Translations: What about some translation work
  • Sandbox: Testbed for testing editing skills
  • XiphWiki:Copyrights: License used for all content on the XiphWiki
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Main Page

Xiph.Org Projects

Audio—

  • Vorbis
  • FLAC
  • Speex
  • Opus

Video—

  • Theora
  • Dirac

Text—

  • XSPF
  • CMML
  • Kate

Container—

  • Ogg
  • Skeleton

Streaming—

Icecast

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