Re: [Linphone-developers] liblinphone and fifos.

[Simon Morlat]

Hi,

Suprising. When linphone_core_use_files() is used no alsa device should be 
used. The better is that you add an abort() in the alsa_open_w() function to 
have a backtrace under gdb, and see who is calling alsa.

Simon


Le Thursday 02 April 2009 19:13:25 Matt Gilg, vous avez écrit :
> Hello,
>
> I've been using liblinphone to build an interface that uses fifos as
> the I/O mechanism for the audio.  (Code snippet below)
>
> //-----------------------
> sipCores[i] = linphone_core_new(&linphone_settings, ".sipconfig", NULL);
> linphone_core_enable_video(sipCores[i],FALSE,FALSE);
> linphone_core_use_files( sipCores[i], TRUE);
> linphone_core_set_play_file( sipCores[i],
> "/ipc/outgoing_voip_sample_fifo"); linphone_core_set_record_file(
> sipCores[i], "/ipc/incoming_voip_sample_fifo"); //-----------------------
>
> After starting the application, it seems that the core repeatedly
> tries to open the ALSA sound device (and fails, because it is
> unavailable.)
>
> Terminal Output:
> //-------------------------
> ortp-warning-We are late of 10093 miliseconds.
> ortp-warning-alsa_open_w: Error opening PCM device default
>
> ortp-warning-We are late of 10095 miliseconds.
> ortp-warning-alsa_open_w: Error opening PCM device default
>
> ortp-warning-We are late of 10113 miliseconds.
> ortp-warning-alsa_open_w: Error opening PCM device default
> //-------------------------
>
> RTP says that it is running behind, and after 10 seconds the call gets
> dropped.
>
>
> Is there a way, via the library or config file, to disable usage of
> the ALSA device?
>
>
> Any help is appreciated!
>
> Thanks,
> -Matt
>
>
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