[Live-devel] Regarding multicast

[Manikandan Valaguru]

Hi,
Thanks for your reply

void PassiveServerMediaSubsession::startStream(
    unsigned clientSessionId,
    void* /*streamToken*/,
    TaskFunc* rtcpRRHandler,
    void* rtcpRRHandlerClientData,
    unsigned short& rtpSeqNum,
    unsigned& rtpTimestamp,
    ServerRequestAlternativeByteHandler* /*serverRequestAlternativeByteHandler*/,
    void* /*serverRequestAlternativeByteHandlerClientData*/) {

    // Implementation here
}

I can confirm that the startStream function is being invoked correctly.
However, I'm noticing that it gets called every time, which raises a concern.
My current understanding is that this method should only be invoked once per client session, and not repeatedly.
Could you please confirm whether this behavior is expected?
Is it possible that I'm missing something regarding how sessions are managed, or is there a scenario where multiple invocations per client are valid?
Regards,
Manikandan
________________________________
From: live-devel <live-devel-bounces at us.live555.com> on behalf of Ross Finlayson <finlayson at live555.com>
Sent: Wednesday, April 16, 2025 4:30 PM
To: LIVE555 Streaming Media - development & use <live-devel at us.live555.com>
Subject: Re: [Live-devel] Regarding multicast

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> On Apr 16, 2025, at 4:40 AM, Manikandan Valaguru <manikandan.v at e-consystems.com> wrote:
>
> Hi,
> I'm working on implementing multicast streaming using the Live555 RTSP server (v4l2rtspserver)

What is “v4l2rtspserver”?  We have no software with that name.  We support only the (latest version of the) software that’s described at
        http://live555.com/liveMedia/
and downloaded from our own web server.

Note that, to stream via multicast, your “RTSPServer” must *not* use a “OnDemandServerMediaSubsession” subclass; that is used only to stream via unicast.  Instead, you should use a “PassiveServerMediaSubsession”.

There are several examples of this in the “testProgs” directory.  Note the demo applications named “test*Streamer”.  These applications stream via multicast, and include a (sometimes optional) RTSP server that uses a “PassiveServerMediaSubsession” to provide RTSP access to the stream.


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


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