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The Xiph.Org Foundation is a non-profit corporation dedicated to protecting the foundations of Internet multimedia from control by private interests. Our purpose is to support and develop free, open protocols and software to serve the public, developer and business markets.

Xiph in the News

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In our effort to bring open-source ideals to the world of multimedia, the Xiph.Org Foundation and its open-source community develops a multitude of amazing products.

Resources by Project

Container Formats

  • Ogg: Media container. This is our native format and the recommended container for all Xiph codecs.
  • Speex RTP: RTP payload format for voice
  • Vorbis RTP: RTP payload format for audio
  • Theora RTP: RTP payload format for video

Miscellaneous

  • XSPF: XSPF is the XML format for sharing playlists.
  • libao: A cross platform audio library.
  • XiphQT: An implementation of our codecs for Apple's Quicktime and Core Audio.
  • oggdsf: An implementation of our codecs for MS Windows.

Software for Distributing Media

  • CD Paranoia Robust CD audio extraction
  • Icecast: Streaming server
  • Ices: Source client for Icecast Server
  • IceShare: P2P for content distribution

Codecs

  • Vorbis: Audio codec
  • Tremor: Fixed-point decoder
  • Theora: Video codec
  • FLAC: Free Lossless Audio Codec
  • Speex: Speech codec
  • OggWrit: Text phrase codec (subtitles)
  • Ogg Metadata: Arbitrary metadata format
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