[Red5] Delayed NetStream.Pause.Notify events on slow connections
walter at waltertak.com
Thu Nov 29 14:33:50 PST 2007
> Only on slow internet conections, When I call ns.pause() in the SWF, the
> event with code NetStream.Pause.Notify for
> this NetStream comes with a very big delay (about 20 seconds delay).
> And during this delay all commands like ns.resume() etc are ignored
> (put in the queue? which is executed after we receive
> So this NetStream "freezes" druring this delay in the SWF.
> BUT the server continue receiving events from the SWF, it executes
> streamPlaylistVODItemResume() and
> streamPlaylistVODItemPause() instantly when we call ns.resume() and
> ns.pause() in spite of event
> delays in the SWF.
> I tested this on the server stream file that requires about 30Kb/sec
> on client in
If your download is like 5 Kbytes/sec , a buffertime of 2 seconds and a
stream of 30 kbytes/sec then the client tries to download 2 x 30 kbytes = 60
Kbytes total which can
take 60 / 5 = 12 seconds.
If you pause the stream it might be possible that the notify comes 'after 60
kbytes of data' and guess what that takes 60 / 5 = 12 seconds at least.
1. do not stream too much to clients that cannot handle those streams (e.g.
make lower-bandwidth streams available if the stream isn't live)
2. lower the clientside buffertime
3. don't wait for a pause.notify but react on the button which enables the
client to pause a stream
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