wim glenn · Sep 01, 2011 at 02:51 PM ·
How to map UDP ports to Wowza server?
I'm trying to play RTSP stream from Wowza server. I can play the stream with x-vlc-plugin embedded in an html file, but the negotiation time before the stream plays is always quite long (~7-8 seconds) and the latency of the stream is large, probably 4-5 seconds (way behind the rtmp stream playing in JWPlayer which is about 1-2 seconds). I thought rtsp should be faster than rtmp, because it should be using UDP for transport whereas rtmp is stuck with TCP. But when I fire up wireshark it looks like rtsp is going all over TCP anyway.
On the guides here it says:
To stream to RTSP/RTP be sure UDP ports 0-65535 are open and properly mapped to the server running Wowza Media Server
Not sure about how to go about this. Does it mean open on the client local machine, on the ADSL router, or both?
1. How can I open UDP ports 0-65535 and map them to wowza server?
2. How can I verify whether or not a UDP port is open and mapped to wowza server?
I would also be interested to know if there are any other popular players that I can embed in html which will work well with wowza server rtsp stream, because I'm finding the vlc plugin a bit clunky (video corrupts and stuff, hard to configure).
That sentence is a little ambiguous. Which guide is that? See the
Wowza User Guide under the section "Ports Used For Streaming".
You can probably ignore any notion of "mapping".
If you're going to stream to a flash player why not just use RTMP?
You can use network administration tools like netcat, to make a server that listens on UDP ports, and thus figure out if you have a firewall blocking that port. Otherwise you can look at your firewall rules.