[pulseaudio-discuss] pa_context_set_source_volume_by_index() failed

Tanu Kaskinen tanuk at iki.fi
Fri Oct 28 19:02:03 UTC 2016


On Fri, 2016-10-28 at 19:58 +0200, pfl wrote:
> I tried to implement it but I cant connect anymore
> 
> "context_state_callback" is called only once with the state 
> PA_CONTEXT_CONNECTING and is never called back
> 
> I tried using pa_threaded_mainloop_lock(mainloop); and 
> pa_threaded_mainloop_unlock(mainloop); around my waiting loop but it 
> does not work either
> 
> Audio::Audio()
> {
>      mainloop=pa_threaded_mainloop_new();
>      api = pa_threaded_mainloop_get_api(mainloop);
> 
>      pa_proplist *proplist = pa_proplist_new();
>      pa_proplist_sets(proplist, PA_PROP_APPLICATION_NAME, "PulseAudio 
> Volume Control");
>      pa_proplist_sets(proplist, PA_PROP_APPLICATION_ID, 
> "org.PulseAudio.pavucontrol");
>      pa_proplist_sets(proplist, PA_PROP_APPLICATION_ICON_NAME, 
> "audio-card");
>      pa_proplist_sets(proplist, PA_PROP_APPLICATION_VERSION, "1.0");
> 
>      context = pa_context_new_with_proplist(api, NULL, proplist);
>      pa_proplist_free(proplist);
> 
>      pa_context_set_state_callback(context, context_state_callback, NULL);
> 
>      pa_context_connect(context, NULL, PA_CONTEXT_NOFAIL, NULL);
> 
>      pa_threaded_mainloop_start(mainloop);
> 
>      do
>      {
>      }
>      while(toTreat!=0);
> 
> }

This code looks like it should work. Does pa_context_connect() return
an error? What if you don't use PA_CONTEXT_NOFAIL?

-- 
Tanu


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