[Freeswitch-users] In proxy_media mode, RTCP is not proxied or activated

[Michael Jerris]

If you have clients that are having issues, we should figure out if its our fault or theirs and make sure to get the appropriate bugs filed to get it fixed.  This would be an example of a bad use of proxy media mode over actually fixing the issue.  Furthermore, I suspect you are wrong that freeswitch not transcoding passing through a vpx stream causes video artifacts.  A non transcoding vpx to vpx call would not modify the video stream in the same way that a vpx over proxy mode call would not.


> On Feb 27, 2017, at 1:06 PM, Sergey Safarov <s.safarov at gmail.com> wrote:
> 
> Michael I am speaking about compatability of current fs master and sip client,  not old freeswith.
> As example - about two months ago I tested linphone android build with FreeSwith.  video artefacts is exits.
> Linphone is updated frequently,  other sip clients may be not.
> 
> 
> пн, 27 февр. 2017, 20:54 Michael Jerris <mike at jerris.com <mailto:mike at jerris.com>>:
> This doesn’t make any sense.  The newer vpx should work better, but I’ve seen no bugs at all raised about them not being compatible.  If that is the case, what we had previously in 1.5 (an unreleased development build) should not be used anymore.
> 
> 
> 
>> On Feb 27, 2017, at 12:45 PM, Sergey Safarov <s.safarov at gmail.com <mailto:s.safarov at gmail.com>> wrote:
>> 
>> About proxy media. This may be necessary when used video calls using vpx codec.
>> 
>> Vpx 1.6 used in FreeSwith is not compatible with vpx 1.5
>> Vpx 1.5 may be used in current sip clients 
>> 
>> пн, 27 февр. 2017, 20:30 Michael Jerris <mike at jerris.com <mailto:mike at jerris.com>>:
>> if zrtp passthrough is not working, please open a lira on this issue.  It should be corrected.
>> 
>>> On Feb 27, 2017, at 12:19 PM, Sergey Safarov <s.safarov at gmail.com <mailto:s.safarov at gmail.com>> wrote:
>>> 
>>> Hello Michael
>>> I confirm that zrtp paththrue is not work as expected and required to enable proxy media from zrtp code match on sip device's 
>>> 
>>> пн, 27 февр. 2017, 19:32 Michael Jerris <mike at jerris.com <mailto:mike at jerris.com>>:
>>> what are “custom algorithms”?
>>> 
>>> 
>>> > On Feb 26, 2017, at 9:01 PM, Richard Chan <richard at treeboxsolutions.com <mailto:richard at treeboxsolutions.com>> wrote:
>>> >
>>> > Hi,
>>> >
>>> > The use case is: customer wants the ability to use custom algorithms in their UAs (don't ask!?) without a crypto bridge in the B2BUA. Any suggestions? Originally, I thought proxy media would do the trick - pass media packets without any attempt at interpretation but I noticed RTCP wasn't being  activated (I think it was back in the 1.2.x days, I have an ancient 1.2.5 that does activate RTCP). Any suggestions?
>>> >
>>> > ( We haven't looked at ZRTP fully, but validating the session string/PIN seems to make it a non-starter in the customer's use case.)
>>> >
>>> > ​Richard

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