Re: [rtcweb] Add, remove, add, remove, add, remove a media stream (lines in SDP)

Saúl Ibarra Corretgé <saul@ag-projects.com> Mon, 23 April 2012 08:12 UTC

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Subject: Re: [rtcweb] Add, remove, add, remove, add, remove a media stream (lines in SDP)
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On Apr 23, 2012, at 10:03 AM, Iñaki Baz Castillo wrote:

> 2012/4/23 Saúl Ibarra Corretgé <saul@ag-projects.com>om>:
>> On Apr 23, 2012, at 9:29 AM, Iñaki Baz Castillo wrote:
>>> Maybe the previosly used UDP port is not available later. Probably
>>> there are no more reasons :)
>>> 
>> 
>> But when you disabled the stream you did set the port to zero, so when you resurrect the stream you'd allocate a new port.
> 
> The stack could try to allocate the same port as default bahavior.
> 

Well, then the stack needs to be fixed :-) The stack should 'forget' the port as soon as it sets it as zero in the stream, and allocate a new one, the same way it would do for a brand new stream.

> 
> 
>> Were you thinking about setting the stream as inactive (a=inactive in SDP terms) instead?
> 
> But setting a=inactive just pauses the stream in a single direction
> (according to RFC 4566). You could be interested in stopping sending
> and receiving video.
> 

IIRC inactive pauses the stream in both directions. For pausing it in a single direction you can use sendonly / recvonly.


Regards,

--
Saúl Ibarra Corretgé
AG Projects