Main Page

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.

• 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
  • Opus: Low-latency general-purpose audio 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
• Educational Videos about audio/video technology.
• 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