Wowza流时间测量而不会增加额外的线程

Question

I'm trying to write module which will monitor how long did user watch stream. It's not live stream, but a video on demand.

My question is what is most efficient way to do so. I went this route:

created class that implements IMediaStreamActionNotify2 and then when onPlay event is triggered I would create new thread that would periodically check for elapsed time since the start of the stream and update duration variable.

This is the way I decided to run additional thread:

BalanceTimerMonitor btm = new BalanceTimerMonitor(...);

ScheduledExecutorService executor = Executors.newSingleThreadScheduledExecutor();
executor.scheduleAtFixedRate(btm, 0, 5, TimeUnit.SECONDS);

BalanceTimerMonitor implements Runnable

Now all of this works, but I'm concerned about amount of new threads created for every stream, since I assume that each stream already runs as separate thread from main wowza app. Will this big amount of threads slow down my server? Is there another more elegant way of measuring stream duration?

Answer 1

My approach is that I have a single thread that loops over the connected clients and the Wowza API allows me to query the elapsed time for each connected client. I use the same trick in another project, but in that case, I don't deal with the identity of players. And you can use IClient.getTimeRunningSeconds() to get the time, don't need to administer it on your own. Hope it helped!