I don't have a permanent home camera, but my work involves various cctv systems from time to time.

I pull the RTSP stream from my cameras direct into LLsvPlayer. On wifi it works well enough up to 1080p25 in a 4Mbps stream, I don't think I've tried faster or fatter. I haven't tried over the cellular link recently, but it worked on my Jolla 1 some time back.