Low‑Latency HLS (LHLS) Solutions and Optimizations for Live Streaming
Youku’s engineering team introduced two Low‑Latency HLS solutions—an Apple‑based LHLS using HTTP/2 extensions and a community‑driven chunked‑transfer variant—while detailing latency sources in traditional HLS and presenting six protocol‑level optimizations that together reduce end‑to‑end live‑stream delay to under two seconds.