I have tried a lot of solutions for IP-camera streams.

1. Vitamio.https://github.com/yixia/Vitamio-iOS
   Result: random crashes and not working cameras

2. https://github.com/kolyvan/kxmovie
   Result: compile time error. I haven't successfully integrated it to my project.

3. GStreamer. https://github.com/sdroege/gst-player