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Do HLS files need to already exist on edge server for ABR to work?

ABR
Paul 2019-06-26 12:06:50 UTC in Nimble Streamer

Hi. I'm trying to set up ABR on edges with 3 qualities.

origin server has channel1-high, channel1-medium and channel1-low

Edge viewer pulls single live video stream from origin, E.g., channel1-high, works fine.

Edge viewer tries ABR pulling the 3 qualities from origin, does not work.
(unless somebody is already pulling the stream from origin.)

Is there any way to do ABR like this (pulling the individual stream qualities from origin) or does all 3 qualities need to exist on the edge for fast automatic bitrate switching?

Thank you

Denis Slobodskoy 2019-06-26 23:56:06 UTC

If you're mean scenario with live pull over RTMP/RTSP by demand - yes, all qualities should exist on edge to be included into ABR. I would recommend to use Republishing settings on edge, you may leave source/destination stream name empty and all streams will be pushed to edge.
Alternatively, you may try to use re-streaming routes ( https://blog.wmspanel.com/2013/04/nimble-streamer-mapping-setup-and-usage.html ) - in this case you must setup ABR on origin server.

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