A multimedia framework with a plugin based architecture for a variety of platforms including Linux, Windows and OSX. Site has downloads, developer resources, and links to applications using the framework.

A movie player for Linux. Supports reading from network, dvd, vcd, file, pipes, and v4l.

Apple's multi-platform, industry standard multimedia software architecture.

A cross-platform software product primarily used for the playing of streaming audio or video.

Open-source cross-platform multimedia player and framework, which can also stream audio and video in a number of formats.