MPlayer - MPlayer is a movie player which runs on many systems (see the documentation).
Emit - Emit can stream from a Windows/Mac/Linux machine to an android/iOS device.
Kaffeine - Kaffeine is a media player for the KDE desktop environment.
Air Video HD - Air Video HD. Introducing the all-new Air Video. Watch videos streamed instantly from your computer on your iPhone, iPad, iPod touch or Apple TV. No need to worry about converting or ..
XULPlayer - XULPlayer is an open-source media player and converter built on Mozilla XUL and MPlayer.
VLC Media Player - VLC is a free and open source cross-platform multimedia player and framework.