[Live-devel] 【External】Re: multiple TCP connections RTSP option keep a live not work

[Mono Lu (盧俊佑)]

Hi,
        We used two NVRs (set to TCP with RTSP option Keep a live) and we found that the connection dropped every 1 minute. After tracing the packets, we found that the keep-alive option command of the first connection did not get a response from the RTSP server, so the RTSP server closed it after timeout.
And I found that handleAlternativeRequestByte did not receive any data, I also checked AWAITING_DOLLAR in tcpReadHandler1, the fServerRequestAlternativeByteHandler of the first line was modified to NULL, so the first line did not receive Keep a live.

        Is there any reason to do this? Can it be fixed?

Thanks,
Mono

-----Original Message-----
From: live-devel <live-devel-bounces at us.live555.com> On Behalf Of Ross Finlayson
Sent: Wednesday, March 2, 2022 5:04 PM
To: LIVE555 Streaming Media - development & use <live-devel at us.live555.com>
Subject: 【External】Re: [Live-devel] multiple TCP connections RTSP option keep a live not work



> On Mar 2, 2022, at 9:59 PM, Mono Lu (盧俊佑) <Mono.Lu at primax.com.tw> wrote:
>
> Hi,
>         We need to implement RTSP server and use it with NVR, but we found that when we connect two TCP connections, the first connection cannot receive any commands, such as OPTION and Teardown.
>         Is this a known issue? Is there any solution?

How specifically are you using our software?  (If you are not using our software, then we cannot help you.)

I suggest that you begin by using our demo applications: The “LIVE555 Media Server”, and “testOnDemandRTSPServer”.  Do you see the same problem when using these server applications (unmodified)?


Ross Finlayson
Live Networks, Inc.
http://www.live555.com/


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