Re: [Linphone-developers] Problem when call from an IP phone to linphonec

[Roy Huang]

Hi Simon,

I check with "soundcard list", there is really only /dev/dsp showed.
After check the configure output, I found libasound-dev is not
installed on my Ubuntu.  Then I install libasound-dev and recompile
linphone. Run the "soundcard list" in the linphonec, I can see the
alsa device.

My suggest is that, if failed to check alsa/libasound.h, giving a message like "
Libgnome and/or libgnomeui are missing. For that reason the gnome
interface cannot be compiled. " at the end of configuration output
will help to mention alsa is not enabled actually. Thanks.


On 11/15/06, Simon Morlat <address@hidden> wrote:
> Hi,
>
> Thank you very much for reporting this problem and the solution !
> I look at the code and it seems it only produces when using the OSS output,
> not ALSA, that 's why most users (and me) didn't see it before you.
> I've applied your patch. Unfortunately it is not in 1.5.1 (released yesterday)
> but I'll upload a 1.5.2 soon.
>
> Simon
>
> Le mardi 14 novembre 2006 09:11, Roy Huang a écrit:
> > Hi,
> >
> > I have a Polycom IP phone, model SoundPoint IP 300SIP. I download
> > linphone 1.5.0 to my PC, compile it without gnome and install it. Then
> > I start linphonec.
> >
> > If call from linphonec to IP phone, it works fine, If call from IP
> > phone to linphonec, the sounds are terrible. After study log file, I
> > find the root cause: When IP phone call linphonec, linphonec play ring
> > file /usr/share/sounds/linphone/rings/oldphone.wav. This is a stereo
> > file, so Ringstream set sound card in stereo mode. After answer to
> > accept the call, linphonec will start audio stream, but it don't reset
> > the mode and it still keep stereo mode setting. But audio stream only
> > offer mono audio to sound.
> >
> > I confirm that by remove rings/oldphone.wav or change oldphone.wav to
> > a mono file. The call will become normal.
> >
> > The following patch seems also fix this problem. Please have a look.
> >
> > diff -ur linphone-1.5.0.orig/mediastreamer2/src/audiostream.c
> > linphone-1.5.0/mediastreamer2/src/audiostream.c
> > --- linphone-1.5.0.orig/mediastreamer2/src/audiostream.c      2006-10-04
> > 18:01:11.000000000 +0800
> > +++ linphone-1.5.0/mediastreamer2/src/audiostream.c   2006-11-14
> > 15:58:28.000000000 +0800
> > @@ -221,7 +221,12 @@
> >       /* give the sound filters some properties */
> >
> >       
> ms_filter_call_method(stream->soundread,MS_FILTER_SET_SAMPLE_RATE,&pt->clo
> >ck_rate);
> > ms_filter_call_method(stream->soundwrite,MS_FILTER_SET_SAMPLE_RATE,&pt->clo
> >ck_rate); -
> > +     if (outfile==NULL) {
> > +             int tmp = 1;
> > +
> > +             ms_filter_call_method(stream->soundwrite,MS_FILTER_SET_NCHANNELS, 
> &tmp);
> > +     }
> > +
> >       /* give the encoder/decoder some parameters*/
> >
> >       
> ms_filter_call_method(stream->encoder,MS_FILTER_SET_SAMPLE_RATE,&pt->clock
> >_rate);
> > ms_filter_call_method(stream->encoder,MS_FILTER_SET_BITRATE,&pt->normal_bit
> >rate);
> >
> >
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