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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.

Demonstrations of Xiph technologies

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


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.
  • SpeexRTP: RTP payload format for voice
  • VorbisRTP: RTP payload format for general audio
  • TheoraRTP: RTP payload format for video
  • XSPF: XML playlist format



  • Software for distributing media
    • Icecast: Streaming server
    • Ices: Source client for Icecast servers
  • Libraries
    • OggPlay: library for synchronised xiph media playback
    • VorbisCommentEdit: Macintosh Framework making it easy to incorporate the editing of Vorbis Comments

Promotional campaigns/events

  • MailOgging: project that provides templates for anyone willing to contact a company requesting them to add support for Xiph formats.

Work in Progress

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

Project management

Resources for Video and Audio programmers

Wiki internal