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Re: [Linphone-developers] Problem running linphone on ARM processor

From: Harishkumar V
Subject: Re: [Linphone-developers] Problem running linphone on ARM processor
Date: Thu, 2 Jul 2009 11:59:45 +0530


I am using linphone 3.1.0 on a ARM based platform. i am using full featured version (ie) both video and audio.

When i am testing between my ARM board and Linux PC, i observed following observation,

1)Video call both sides tranfser perfect.
2)Audio from PC end to ARM end only is working, but the audio flow from ARM end to PC end not working.

I tested my soundcard using aplay and arecord, both the playback and capture is prefect.
What might be the cause for this?

how then arecord works, but alsa_read_process() fails to read any datas.

Thanks and Regards,

On Wed, Jul 1, 2009 at 5:30 PM, Noname Noname <address@hidden> wrote:

I'm trying to run Linphone on an ARM based platform. Although the call (plain audio) establishes successfully,
i can only hear one way audio (coming from PC towards ARM platform). There is no audio flow from ARM Mic. 

+ I'm using speex 16K encoding. 
+ Using ALSA default device for playback/capture. Mic/Speaker works fine as tested using ALSA utilities
+ Currently, I'm not using any video component
+ CPU utilization is under 3% for Linphone

I can see that although Fn: alsa_read_process (ALSA Filter) does execute, filter process for speex encoder (enc_process) is never scheduled
(which clearly states the problem but not the cause). Also, in the logs, i can see lot of traces for MS ticker "We are late
of xxx miliseconds". This is from source file msticker.c. 

Any thoughts/suggestions would really help.


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