[Live-devel] reclamationTestSeconds in TCP

[Renato MAURO (Libero)]

Hi Ross.

> It's not your mistake.  There is a known problem with the current "LIVE555 
> Streaming Media" code: If RTP-over-TCP streaming is used, then incoming 
> RTSP commands (after the initial "PLAY") will not be recognized by the 
> server.

Does the server ignore the "TEARDOWN" command too?

> In the meantime, if you want to use RTP-over-TCP streaming with our 
> server, then you should *not* send RTSP commands as 'keep alive' 
> indicators.  Instead, you *must* send RTCP "RR" packets.  Note that RTCP 
> is a *mandatory* part of the RTP specification, so if your client does not 
> send RTCP "RR" packets, then it is not in compliance with the standard, 
> and you cannot expect a standards-compliant server to work with it.

OK, the client I run is live555 RTSPClient. Where could I get an example 
about sending RTCP "RR" packet and writing its server side handler?


Thank you very much,

    Renato MAURO



----- Original Message ----- 
From: "Ross Finlayson" <finlayson at live555.com>
To: "LIVE555 Streaming Media - development & use" 
<live-devel at ns.live555.com>
Sent: Saturday, December 06, 2008 9:46 AM
Subject: Re: [Live-devel] reclamationTestSeconds in TCP


>>    I have an RTSPServer dealing with RTP_UDP clients and 
>> reclamationTestSeconds set to 45s.
>>    RTSPClient-s say they are alive by sending a GET_PARAMETER command 
>> every 20s.
>>    Everything works fine.
>>
>>    Now I'd like to use the same server with RTP_TCP clients. I see that 
>> they send the GET_PARAMETER command, nevertheless the server deletes the 
>> stream after reclamationTestSeconds seconds.
>>
>>    1) Is right using reclamationTestSeconds with RTP_TCP clients? If yes, 
>> where is my mistake?
>
> It's not your mistake.  There is a known problem with the current "LIVE555 
> Streaming Media" code: If RTP-over-TCP streaming is used, then incoming 
> RTSP commands (after the initial "PLAY") will not be recognized by the 
> server.
>
> In the meantime, if you want to use RTP-over-TCP streaming with our 
> server, then you should *not* send RTSP commands as 'keep alive' 
> indicators.  Instead, you *must* send RTCP "RR" packets.  Note that RTCP 
> is a *mandatory* part of the RTP specification, so if your client does not 
> send RTCP "RR" packets, then it is not in compliance with the standard, 
> and you cannot expect a standards-compliant server to work with it.
> -- 
>
> Ross Finlayson
> Live Networks, Inc.
> http://www.live555.com/
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> live-devel mailing list
> live-devel at lists.live555.com
> http://lists.live555.com/mailman/listinfo/live-devel
>