We have some ip-cameras (we use Axis cameras Q6035). They are translating videostreams throw WowzaMediaServer.
The cameras and mediaserver are synchronized by the same NTP-server. We need to see streams, translated from the same scene on single screen. However video in players not synchronized. Not only from different cameras, but two streams from the same camera too.
How can we synchronize videos?
As an example, we see the solution by SmoothStreaming
The main idea is to create Manifest, including links to different streams. They must be marked my additianal XML attributs.

Is any way to do this by .smil files, or we need to write extension to wowzaMediaServer?

Many thanks.