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Re: [Linphone-users] Linphonec 1 sec latency in autoanswer mode

From: Frits Senders
Subject: Re: [Linphone-users] Linphonec 1 sec latency in autoanswer mode
Date: Thu, 27 Apr 2006 13:47:38 +0200



No, I didn’t call linphone_core_set_audio_jittcomp().
Linphonec has the same problem, when used in autoanswer mode.
But I think I have a solution for my latency problem:
When you do a linphone_core_accept_dialog() directly after an invite_received is come in, you get the 1 sec latency on incoming sound. But when you do the linphone_core_accept_dialog() after the next linphonecore_itterate(), everthing is ok.
But thanks anyway!
Did you called that function in your api ?
void linphone_core_set_audio_jittcomp(LinphoneCore *lc, int value);
This method sets the bufferisation interval in milisecond for the incoming 
audio stream. 
The default value is 60 ms, which quite short normally. Maybe you override it 
using the above function ?
Le Mardi 11 Avril 2006 16:42, Frits Senders a √©crit :
> I encountered a problem when writing an application using the
> linphonecore library.
> The incoming sound is about one second late. Outgoing sound latency is
> ok.
> My application is an auto-answering app.
> When I try linphonec everything is ok. So the alsa configuration etc
> must be ok.
> Until I use linphonec -a (autoanswer mode) then I get the same problem
> as with my application.
> I included a log file from the linphonec in auto-answer mode.
> The errors on line 178 are also there when I use linphonec in normal
> (not auto-answer) mode.
> Anyone any idea?
> Frits Senders


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