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Re: [Linphone-developers] Regular irregularity in RTP paquets sending

From: gegetel
Subject: Re: [Linphone-developers] Regular irregularity in RTP paquets sending
Date: Mon, 09 Dec 2013 17:15:46 +0100
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:25.0) Gecko/20100101 Firefox/25.0 SeaMonkey/2.22

Le 28/09/2013 17:56, I wrote :

I know that I am attempting to do is not the usual job of Linphone, but
perhaps somebody here can show to me a solution to my problem. Please, have
a look here and
mainly at the end part which is written in blue characters. I beg your
pardon for this is not in english...

Using linphonecsh, I recently found a way to make linphonec sending RTP packets with constant intervals of 20 ms (or 30 ms depending on provider and time of day) ± epsilon with epsilon < 1 ms.

After having begun a session and registered, I simply initiate a call like this :


linphonecsh generic "soundcard use files"

sleep 0.1

linphonecsh dial sip:address@hidden

sleep 1

linphonecsh generic "record /dev/shm/received.wav"

aplay -D hw:0,0 -f S16_LE -c 1 -r 8000 -t wav --buffer-size=96 /dev/shm/received.wav &

arecord -D hw:0,0 -f S16_LE -c 1 -r 8000 -t wav --buffer-size=96 /dev/shm/sent.wav &

linphonecsh generic "play /dev/shm/sent.wav"


Unfortunately, this improvement doesn't allow me to send faxes, but I think I have identified the true problem and I shall explain this soon in this list because only a developer could resolve it.

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