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
• 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