[pulseaudio-discuss] pa_context_set_source_volume_by_index() failed

[pfl]

I checked the volume in the raspbian volume utility

also as I said if I restart my program, it is still the same vollume 
values, not my values

how does it work then ?

how to I submit/commit my volume settings ?

is there no wiki or anything explaining all these ?



Le 27/10/2016 à 16:35, Tanu Kaskinen a écrit :
> On Wed, 2016-10-26 at 19:32 +0200, pfl wrote:
>> it seems pa_context_set_sink_volume_by_index has no effect
>>
>> no more error, but the settings are not kept as default
> What do you mean by "kept as default"?
>
>> setOutputVolume(0,100);
>> setOutputVolume(1,100);
>> setOutputVolume(2,100);
>> setOutputVolume(3,100);
>> setOutputVolume(4,100);
>>
>> void setOutputVolume(int index,int volume)
>> {
>>       pa_operation* o;
>>
>>       currentVolume.values[0]=volume;
>>       currentVolume.values[1]=volume;
>>
>>       if (!(o = pa_context_set_sink_volume_by_index(context, index,
>> &currentVolume, NULL/*volumeCallback*/, NULL)))
>>       {
>>           printf("pa_context_set_source_volume_by_index() failed\n");
>>           debugContextState(pa_context_get_state(context));
>>           return;
>>       }
>>
>>       printf("new volume [%d]: %d %d\n",index,currentVolume.values[0],currentVolume.values[1]);
> When you print this message, do you expect the volume at the server end
> to have already changed? All interactions with the server are
> asynchronous, so at this point in your code libpulse has only queued
> the "set sink volume" command to be sent. The command has not yet
> reached the server.
>


---
L'absence de virus dans ce courrier électronique a été vérifiée par le logiciel antivirus Avast.
https://www.avast.com/antivirus