Video Experts Group is glad to present you the VXG Video Player SDK on GitHub!
VXG SDK can be used for IPTV, Android client of surveillance system, IP camera viewer, TV player, OTT clients and other kinds of applications with video playback.
Also the source code of sample RTSP player based on this SDK is provided. RTSP Player is the client which is perfect for IP cameras. The source code is free to use for development of different applications.

You can discuss it in our thread on XDA Forum: