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

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

Codecs

Vorbis: Audio codec
Tremor: Fixed-point decoder
Theora: Video codec
FLAC: Free Lossless Audio Codec
Speex: Speech codec
CELT: Very low-delay audio codec
Ogg Metadata: Arbitrary metadata format