Wowza Community

Redundant HLS Streams

Is it possible to have Wowza add alternate streams to HLS manifests? It seems this functionality exists when doing Push Publishing to Akamai, however for CDNs that pull, I can’t find any clear documentation.

What I’m referencing is the “Redundant Streams” section of this Apple documentation: https://developer.apple.com/library/content/documentation/NetworkingInternet/Conceptual/StreamingMediaGuide/UsingHTTPLiveStreaming/UsingHTTPLiveStreaming.html

Hello

Thanks for contacting the Wowza Community!

For redundant streams, in Wowza, there is a “stream to backup” option. That will only send to the backup Entrypoint. You will need to setup 2 identical stream targets, 1 for primary and 1 for backup. Once you have both streams running to both entrypoints, you will need to manually manipulate the manifest to include both primary and backup playlists in the manifest.

You can use the command:

curl -T filename.m3u8 entrypoint_posting_hostname_and_path_and_name.m3u8

Hope this helps. If any further questions, feel free to contact us.

Regards,

Jermaine

Hi,

this is interesting. is it possible to add the backup stream in the manifest programatically?.

I mean, I am generating the playlists dinamically with the java api (amlst).

I would like to know if I can add a backup stream there, I tried adding a second MediaListSegment to the MediaList object, but it does not seems to do anything.

Any advice? Thanks