16 Aug
2024
16 Aug
'24
9:08 p.m.
Le 2024-08-16 à 09 h 41, Marc Lavallée a écrit :
I don't known, but It's possible to add more
audio channels if using
defined audio positions (which mean that 64 channels need to have a
set of 64 defined audio positions). I was unable to add more midi
channels. Maybe jackdbus is required...
Le 2024-08-16 à 11 h 24, Fons Adriaensen a écrit :
Meanwhile I've noticed another problem with the
Jack Tunnel:
the port names on the Jack side are apparently taken from
the 'audio.position' property. Only a limited set of names
(the consumer surround channels) seem to be accepted, every
thing else results in 'PW:playback_UNK' and all following
ports fail to be created.
I also noticed but did not mention. For a set of playback_UNK pipewire
sinks, there's only one playback_UNK jack client.
Assuming that all audio must be 'speaker
signals' doesn't
make any sense - they could be anything. Maybe there is
a property to set these names, but only $DEITY knows.
There's a spa_audio_channel enumeration :
https://gitlab.freedesktop.org/pipewire/pipewire/-/blob/master/spa/include/…
AUX0 to AUX63 can be used to define an audio.position set.
And why the ports only appear when wireplumber is
started
(but remain when it is terminated) is still a mystery.
Or in a my experience, why they *disappear* when wireplumber is started.
Marc