[AG-DEV] UCL common library & VPMedia

Andrew Ford acf0659 at rit.edu
Thu May 28 10:10:03 CDT 2009


Hi,

Has anyone tried to compile the VPMedia library lately? There seem to be
some discrepancies between it and the latest version of the UCL common
library, particularly with rtp.h/.c:

-the RTP option RTP_OPT_WEAK_VALIDATION has apparently been changed to
RTP_OPT_WAIT_FOR_RTCP - is it safe to change instances of the former
(there's one in VPMSession_net.cpp:82 in VPMedia) to the latter? Do they
mean the same thing?

-In VPMSession_net.cpp:438, there's a use of the function rtp_set_umtp_dest,
which has a prototype in rtp.h but no actual definition in rtp.c. Thus,
anything that tries to use VPMedia will fail to link, saying undefined
reference to `rtp_set_umtp_dest'. This in turn prevents even attempting to
compile VP (my actual goal) since it checks whether VPMedia is linkable in
its scons configure stage. Is this function supposed to be unimplemented,
and if so, does anyone know why it's being used in VPMedia?

Any info on these issues would be greatly appreciated.

Thanks,
--Andrew
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