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RE: [Linphone-developers] Linphone in 32-bit calculations

From: Micha Nelissen
Subject: RE: [Linphone-developers] Linphone in 32-bit calculations
Date: Wed, 28 Mar 2007 11:44:07 +0200

Micha Nelissen wrote:
> Hi,
> Is it possible to modify linphone to work only with 32 bit
> calculations ? 64 bit calculations are not supported on my platform
> (or not implemented yet). Are there many places with 64 bit integer
> usage ? 

I should give context: I am getting alsa buffer underruns, about 4 times
a second, and I am trying to find out why. I can increase the alsa
buffer size of course, but this also increases latency, and still the
buffer underruns sometimes.

I also regularly see:

ortp-message-synchronizing timestamp, diff=-1760
warning! alsa write underrun!
ortp-message-synchronizing timestamp, diff=960

If I use uLaw instead of speex, it's somewhat better, but still a buffer
underrun every 2 seconds or so.

Seems setting session->permissive for oRTP also helps somewhat, but this
is maybe a hack ?



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