29 Aug
2018
29 Aug
'18
9:18 p.m.
On Wed, 29 Aug 2018, Jonathan E. Brickman wrote:
I need lossless JACK MIDI networking outside of
JACK's built-in networking, and
not multicast unless someone can tell me straightforwardly how to get multicast
(qmidinet) to run within localhost as well as outside it. Thus I am thinking of
trying my hand at using the Mido library to bridge JACK MIDI and TCP. I have
never done this sort of coding before, programmatorially I am mostly a deep
scripting guy, Python-heavy with a bunch of Bash on Linux, Powershell-heavy on
Windows of late, with a pile of history on back in Perl on both and VBA on
Windows. Anyone have hints...suggestions...alternatives...a best or better
starting place? Right now I don't want the applets to do GUI at all, I just want
them to sit quietly in xterms, on JACK servers, keeping connection, and passing
MIDI data to and fro, as other processes and devices bring it.
While I have not had any issues with qmidinet, it is not immune to packet
loss. If you want a place to start I would suggest rtpMIDI would do what
you want and be a great service to the linux community. While there have
been in the past rtpmidi implementations in Linux, they seem to have
suffered bitrot and in fact I don't even know if the source is still
available.
https://en.wikipedia.org/wiki/RTP-MIDI#Linux
They mention Scenic, but anything I tried with that (like building from
source) did not work. (it has been 1 or 2 years since I tried) The full
implementation at least guarantees all note off events make it through.
There was a google repo called MIDIKIT, but google has shut all that stuff
down. I don't know if https://github.com/jpommerening/midikit is the same
code or not as they have no readme and the last commit is 2015.
I don't know as I like to use node, but:
https://github.com/jdachtera/node-rtpmidi
is a bit newer.
rtpmidi that shows up in alsa or jack with zeroconf support would be a
nice addition to Linux audio. (as would a whole pile of other things :)
--
Len Ovens
www.ovenwerks.net