Cupertino Streaming: Lowest possible cupertinoChunkDurationTarget

Wowza Streaming Engine
1

I am trying to reduce the latency of Cupertino Streaming as much low as possible. I have observed that any value less than 500 ms for cupertinoChunkDurationTarget results in failure to stream with a error message of

“*********** Why is chunk not open” on the console.

Has anyone achieved a smaller chunk duration for Cupertino Streaming or is this the lowest I can go?

Thanks in advance.

2

Be sure the key frame interval is as low as the chunk size. Also add the following property to the settings:

<Property>
	<Name>chunkDurationTolerance</Name>
	<Value>150</Value>
	<Type>Integer</Type>
</Property>

Charlie

3

Richard,

The guide for that is here:

https://www.wowza.com/docs/how-to-configure-apple-hls-packetization-cupertinostreaming)

Richard

4

How low did ppl manage to get the delay?

FYI we are testing with Haivision Makitos which are low delay on the input.