Requires iOS 4.2+
Enables AirPlay Video in 3rd Party Application on iOS 4.2.1.
This has been tested on an iPad at 4.2.1 jailbroken using redsn0w. Theoretically it should work on all jailbroken devices at iOS 4.2.1. It only works on apps that use Apple's Media Player for playing video. It will not work on apps that use their own implementation of Media Player.
Thanks to @stroughtonsmith for the actual research on how to enable this.
Know Issues:
- Doesn't enable AirPlay video in netfilx app. They probably use some custom media player implementation.
- Will not work in VLC app as well since it uses its own media player implementation
No new icons are added to your home screen, and there are no options to configure.