Live Streaming Solution for 360 Degree Video

We are looking for a live streaming solution for 360 degree video. The deployment has to be on a white labelled player which has to be hosted on a microsite (YouTube, Facebook, Vimeo etc. will NOT work). Additionally, a solution to deploy live dynamic graphical overlays will also have to be developed. Eg - assume live streaming in VR from Gateway of India, Mumbai and we want to overlay the wind speed on the VR experience. We know that we want to put the graphics at the 35th min of the stream, but the precise value of the wind speed will be recorded in real-time and displayed on the VR stream. Graphical templates and timings will be decided before-hand, but their values and text will be given in real-time What we have is a panoramic stitched output from our VR camera in RTMP format that we want to upload on a server and stream it on a microsite. The audio file will be provided separately by us and will need to be mixed with the video output in real-time. Someone who already has a solution or has worked on something similar would be preferred.