Ogg

• Extensions: ogg, ogm
• Company: Xiph

Originally developed for the Vorbis audio format. Later extended to OGM to include support for a lot of other types of audio and video.

Technical specifications

• General structural overview
• Detailed header and parsing specification
• Issues and practices for multiplexed Ogg streams

The Ogg bitstream format is also documented in the following IETF RFCs:

• RFC 3533 The Ogg Encapsulation Format Version 0
• RFC 3534 The application/ogg Media Type