HLS stream sudden skip

Wowza Streaming Engine
1

Hi, we see random sudden skips on our HLS, the skip is always forward , not to a particular point and at no particular time, mediastreamvalidator results are fine, i can’t find anything in the logs, any hint would be appreciated, the server CPU or I/O are not under any stress.

(WMS 3.1.2 patch 4, Latest MediaCache)

BR,

Shay

Update: we use BDNS i think the reason for the skip was that the player is not “sticky” so i used

cupertinoRelativePlaylistPlaylists

false

Boolean

together with:

cupertinoPlaylistHostDomain

test.com

to force the player to a single server once it made the initial request

I think that was the issue

BR,

Shay.

2

You may have an odd key frame frequency which is not a factor of the default cupertinoChunkDurationTarget (which 10000 milliseconds or 10 seconds). Try changing the key frame frequency of the stream to 2 seconds. Or try changing cupertinoChunkDurationTarget to a multiple of key frame frequency. See this guide for more details:

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

Richard