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Has anyone implemented HLS or DASH in an application that required low-latency? How low were you able to get it?

With DASH I have been able to achieve 5s by using small chunks and a short interval between iframes.

I've talked with a few guys from jw and videojs They've said to reach sub 2s using hls. They did that with <1s chunks and progressive streaming of a single chunk.

I have an HLS live stream with less than 1 second of latency. If you have a keyframe interval around 5 frames, the player can start playing when it receives 15 frames.

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