AirView! was developed for use with Ubiquity surveillance cameras. These devices have a built in RTSP streaming server for getting the live video feed to (almost) every network enabled device.
But you can use AirView! also for streaming video from several other sources to your iPhone. Free (creative commons) sample videos are shipped with your app. There are several configuration options to fit your needs. As AirView! is based on FFmpeg it supports video over various transport ways such as: http, https, mms, mmsh, rtmp, rtsp and much more. Read even more in the help section.
AirView! is based on FFmpeg. AirView! contains several sample media. See license information here.