FB live says there that they use a modified version of nginx-rtmp for delivery. I don’t know about ingest.
I still think RTMP is a tough choice for delivery. I winder if they are still doing that, 5 years later? I would be surprised, but maybe.
There are lots of ways to make HLS run at much less than 15 seconds. With some clever tricks, a cooperative player, and good network conditions, it can be under 0.5s. Hitting 2-4s latency is relatively straightforward. The strategies here are sometimes bundled under the term “LHLS,” and Apple’s LLHLS incorporates some (not all, grrr) of them.
I still think RTMP is a tough choice for delivery. I winder if they are still doing that, 5 years later? I would be surprised, but maybe.
There are lots of ways to make HLS run at much less than 15 seconds. With some clever tricks, a cooperative player, and good network conditions, it can be under 0.5s. Hitting 2-4s latency is relatively straightforward. The strategies here are sometimes bundled under the term “LHLS,” and Apple’s LLHLS incorporates some (not all, grrr) of them.