Re: [Linphone-developers] play problem within linphonec......

[Guillaume Beraudo]

Hi,


> Second, on the basis of the above. I try to play wav file with
> linphonec, but It can't work too. I used this:

You should now do a call.

Cheers,
Guillaume



On Tue, Aug 27, 2013 at 04:43:47PM +0800, zhim wu wrote:
> Hi all:
> 
>      I'm  trying to hack linphone, but facing some problem.
> 
>      First, the ALSA seems can not work in my machine. When I start
> linphonec, I got:
> 
> ALSA lib conf.c:4631:(snd_config_expand) Unknown parameters 0
> ALSA lib control.c:882:(snd_ctl_open_noupdate) Invalid CTL default:0
> ALSA lib conf.c:4631:(snd_config_expand) Unknown parameters 0
> ALSA lib pcm.c:2209:(snd_pcm_open_noupdate) Unknown PCM default:0
> ALSA lib conf.c:4631:(snd_config_expand) Unknown parameters 0
> ALSA lib pcm.c:2209:(snd_pcm_open_noupdate) Unknown PCM default:0
> Ready
> Warning: video is disabled in linphonec, use -V or -C or -D to enable.
> linphonec>
> 
>       If I change function alsa_card_new()  in
> .../mediastreamer2/src/alsa.c to using "default", instead of "default:%d",
>  the output of linphonec will be:
> 
>  Ready
> Warning: video is disabled in linphonec, use -V or -C or -D to enable.
> linphonec>
> 
>        I executed the linphonec with my regular user account, and I have
> added this user account into pulse/pulse-access/audio group. I guess the
> above problem is due to permission, but I don't know how to fix it.
> 
> 
>        Second, on the basis of the above. I try to play wav file with
> linphonec, but It can't work too. I used this:
> 
> linphonec>
> linphonec> soundcard list
> 0: ALSA: default device
> 1: ALSA: Ensoniq AudioPCI
> linphonec> soundcard use files
> Using wav files instead of soundcard.
> linphonec> play /home/zdw/hello16000.wav
> linphonec>
> 
>         It give me nothing, no info, no error, and no sound. I tried to
> trace with gdb, founding one reason in
> linphonecore.c:linphone_core_set_play_file().
> 
> void linphone_core_set_play_file(LinphoneCore *lc, const char *file){
>         if (lc->play_file!=NULL){
>                 ms_free(lc->play_file);
>                 lc->play_file=NULL;
>         }
>         if (file!=NULL) {
>                 lc->play_file=ms_strdup(file);
>                 if (lc->audiostream)
>                         audio_stream_play(lc->audiostream,file);
>         }
> }
> 
>        The lc->audiostream get NULL val, but it shouldn't be. I found
> audiostream field of LinphoneCore struct would be set in
> function linphone_core_init_media_streams , but I find no place where this
> function get called in linphonec directly or indirectly, maybe I missed
> something.
> 
>        I used to be an embedded linux developer, and I'm not familiar with
> sip or other VOIP stuff, so I think is there some stuff/tutorial/guid suit
> for my development quickly? thanks a lot.

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