There seem to be many options for handling live streaming. From my research, popular protocols include RMTP, RSTP, HLS. Popular solutions include Wowza or Tokbox.<p>What are the key tradeoffs to consider regarding latency, cost, scalability, etc?<p>Are there any open source solutions?<p>What is the best way to integrate with a traditional backend (ex: Django) which will provide non-streaming data & logic?