I've got a non-Apple app which is supposed to use AirPlay to stream both video and audio to an Apple TV (or other AirPlay-enabled device). Following the AirPlay setup instructions on Apple's website, I turned on my Apple TV, and then, having started playback on my iPad, switched the output from the iPad to the Apple TV. The Apple TV plays audio, and responds to all of the iPad's playback controls, but there's no video. In fact, when the media shows up (as "now playing", under computers), it's shown to be an audio track: the Apple TV shows the default iTunes graphic for albums with no artwork.
I'm using the original iPad running iOS 5.1.1 (the latest this model supports)
Am I missing something here? Is it possibly that it's just an ill-coded app?