23 Aug
2019
23 Aug
'19
8:04 a.m.
On Fri, Aug 23, 2019 at 01:36:13PM +0200, Hannes Helmholz wrote:
On 2019-08-21 22:52, John Rigg wrote:
I'm not a JACK developer, but I think at least some of those limits
are arbitrary. I know of one user on this list who needed to increase
DRIVER_PORT_NUM to accommodate two RME MADI cards, but the limit
hasn't yet been changed in the git source (probably due to lack of
time). Hopefully a developer will chime in with a more knowledgeable
answer.
John
In jack2 (don't know about jack1)
PORT_NUM_MAX is set in
JackConstants.h. It's currently set to 4096.
There are other numbers in JackConstants.h like DRIVER_PORT_NUM
(currently 256 which is too small for multiple MADI cards,
for example).
If you can't get enough ports you might have to raise one or
more of those numbers and recompile.
Ahh, thank you for the hint. The wall I was actually running into here
was PORT_NUM_FOR_CLIENT being 768.
What is the reasoning for these limits, since just like that they seem
very arbitrary? But at least there is a known source for the limitations
now. :)
Sadly recompiling is certainly not trivial, mostly because I need to
work with OSX and eventually Windows. Which both are not officially
supported atm, I believe.
In case I manage, should it be feasible to raise some of the limits? Or
what might happen that I will have to look out for?