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Re: OPAL autoenables video?: msg#00369

telephony.openh323.general

Subject: Re: OPAL autoenables video?

I wonder if problems 2 and 3 won't be fixed when Robert will add video
support back.

However, finding a fix to prevent this and a crash would be nice. Do you
have a patch?

Le mercredi 23 février 2005 à 13:23 +0100, Hannes Friederich a écrit :
> Okay, there are a couple of issues related with this bug:
>
> 1)
> When using dynamic linking for PWLib/OPAL, not all media formats are
> registered at startup.
> This causes the missing media formats to be created & registered after
> receiving the terminalCapabilitySet request PDU from the remote side.
> That's why video does not work in the first call.
> When linking the libraries statically, this problem does not exist.
>
> I know that Robert Jongbloed did a couple of changes recently,
> addressing some capability issues, so eventually a bug popped out
> there. (I don't know how it was before the changes, actually).
> Also, I don't know whtere this is (again) a platform-specific problem
> since all these problems were observed on my MacOSX machine.
> On the x86-debian machine, I could only run simpleopal linked
> statically (make optnoshared), so I don't know how the situation there
> is when linked dynamically.
>
> 2)
> Although video is disabled, there is still a incoming H.261 video
> stream opened. This stream is closed from the remote party right after
> it's opening since OPAL never sends a reponse openLogicalChannelAck PDU
> for this stream.
>
> 3) Although the opened h.261 video stream never gets confirmed by OPAL,
> OnOpenMediaStream is called.
> OnClosedMediaStream is never called, however.
>
> I hope to have made these things clear... if not, please ask... In the
> meantime, I'll try to find out more
>
> Hannes
>
> Am 22. Feb 2005 um 22:00 schrieb Hannes Friederich:
>
> >
> > Am 22. Feb 2005 um 21:11 schrieb Damien Sandras:
> >
> >> I can tell you nobody has worked on that, so you are free to do it.
> >>
> >> However, if you set autoStartReceive/TransmitVideo to FALSE, it
> >> shouldn't happen.
> >
> > Yes, it shouldn't, but it does... I'll have a closer look at this
> >>
> >> Le mardi 22 février 2005 à 21:06 +0100, Hannes Friederich a écrit :
> >>> I have noticed that the second time the opal-application (simpleopal
> >>> or
> >>> XMeeting) has a call with another endpoint, video streams are opened
> >>> in
> >>> both directions even if video is disabled.
> >>>
> >>> I'd like to offer my help in debugging the opal library, but I don't
> >>> want to spend time on bugs others are working on or have already
> >>> fixed...
> >>>
> >>> Hannes
> >>>
> >> --
> >> _ Damien Sandras
> >> (o- GnomeMeeting: http://www.gnomemeeting.org/
> >> //\ FOSDEM 2005 : http://www.fosdem.org
> >> v_/_ H.323 phone : callto:ils.seconix.com/dsandras@xxxxxxxxxxx
> >>
> >
>
--
_ Damien Sandras
(o- GnomeMeeting: http://www.gnomemeeting.org/
//\ FOSDEM 2005 : http://www.fosdem.org
v_/_ H.323 phone : callto:ils.seconix.com/dsandras@xxxxxxxxxxx

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