[Live-devel] How to update SDPLines info?

[Eric_Hsieh at alphanetworks.com]

Hi Ross,

Yes, it works. Thanks a lot.

> Ross Finlayson <finlayson at live555.com> 於 Apr 26, 2016 15:49 寫道：
>
>> Run rtsp server based on OnDemandServerMediaSubsession class.
>> We found the server will always return the same SDP into back to the rtsp client, even we update the NEW SDP info when call createNewRTPSink.
>
> Yes, this is an optimization that our server code makes - based on the (usually correct) assumption that the properties of the (same-named) stream will not change.
>
>
>> So, my question is, how to control live555 library update SDP info?
>
> You can do this by - in your “OnDemandServerMediaSubsession” subclass - redefining the virtual function
> virtual char const* sdpLines();
> and reimplementing it as follows:
> char const* yourOnDemandServerMediaSubsessionSubclass::sdpLines() {
> delete[] fSDPLines; fSDPLines = NULL;
> return OnDemandServerMediaSubsessionSubclass::sdpLines();
> }
>
>
> Ross Finlayson
> Live Networks, Inc.
> http://www.live555.com/
>
>
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