linuxaudio.org

On 06/06/2010 10:16 PM, fons@kokkinizita.net wrote:

quoted text
> On Sun, Jun 06, 2010 at 10:12:45PM +0100, Rui Nuno Capela wrote:

>

>> On 06/06/2010 09:43 PM, fons@kokkinizita.net wrote:

>>> Qjackctl has the -n option to select a Jack server name,

>>> and recent versions also allow multiple presets.

>>>

>>> What would it take to make the server name a element of

>>> a preset rather than a command line option ?

>>>

>>> That would finally allow to run multiple jacks on the

>>> same machine (something I've been doing quite a lot

>>> recently) without having to start each qjackctl with

>>> a different command line option (e.g. from a desktop

>>> menu).

>>>

>>> And maybe the four start/stop scripts should also be

>>> 'per preset'.

>>>

>>> While we're here: almost no apps support selecting a

>>> specific Jack server. I've been adding this to some

>>> of my own just because I needed it.

>>> Using -n for this can be problematic if the toolset

>>> used doesn't allow context-sensitive options: -n is

>>> also used as a parameter for an ALSA interface, and

>>> some apps support both Jack and ALSA.

>>>

>>

>> JACK_DEFAULT_SERVER environment variable might be your (only) friend here :)

>

> I know. Either that or for qjackctl, -n. But both require

> the choice to be made when the app (in casu qjackctl) is

> launched, while everything else, including the soundcard

> to be used, can be selected later or as part of a preset.

> Both JACK_DEFAULT_SERVER or -n also integrate badly with

> desktop menus or icons used to start a qjackctl instance.

>

> If the soundcard used is part of a preset, the server

> should be as well. Just give it a sensible default, so

> 'almost all' users will never have to modify it.

> 

yep. i'm first to reckon qjackctl was not made/designed for the

multi-jack-server scenario and the previously suggested hack are, yes,

just a hack.
but, as to let any of those client apps connect to the right jack server

(-n), you probably need to lauch them in the right context, ah, unless i

miss the point so badly, that means a precise JACK_DEFAULT_SERVER

contextual (aka shell) setting anyhow
:/

--

rncbc aka Rui Nuno Capela

rncbc@rncbc.org

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