[pulseaudio-discuss] [PATCH 3/6] pacmd: Add optional argument for quiet mode

Thomas Martitz kugel at rockbox.org
Wed Jul 24 23:50:28 PDT 2013


Am 20.07.2013 20:23, schrieb David Henningsson:
> On 07/19/2013 09:32 PM, Peter Meerwald wrote:
>> quiet mode allows to turn off PA's welcome message and the >>> prompt
>>
>> pacmd waits 100 ms; if nothing is coming from the PA daemon, it is a new
>> version and we actively ask for the welcome message (non-quiet mode) 
>> by sending
>> "hello"; in quiet mode, we send "hello quiet" to tell the daemon we 
>> are not
>> interested in polite messaging and prompts
>>
>> if something is received from the PA daemon within 100 ms, it must be 
>> an old
>> version and we just continue as before; quiet is silently ignored for 
>> older
>> PA daemons (nothing we can do, except filter the data coming from the
>> server -- no)
>
> So in case of e g scripting, you have now limited the amount of 
> "pacmd"s you can execute (in serial) to 10 per second, which is IMO a 
> bad thing.
> Btw, since we don't guarantee backwards compatibility anyway, using 
> pacmd for scripting is probably a bad idea in the first place...
>
> Anyway, I'm also annoyed by the chattiness so I think the quiet 
> argument is good, but since pacmd can't connect to remote servers,
> you don't need to wait 100 ms to try to detect whether the server is 
> old or new. A new pacmd can just assume a new server.


Pretty sure I used pacmd on a remote server by setting the PULSE_SERVER 
env variable.

Best regards.


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