portname with midi-channels > 16

[yukulele]

When i start FluidSynth with:

fluidsynth ./sf2/FluidR3_GM.sf2

FluidSynth create a midi port with a name like Synth input port (75216:0) but the number change on each run.
So I use --portname to force a fixed name:

fluidsynth --portname "my midi synth" ./sf2/FluidR3_GM.sf2

I get my midi synth as port name

Now I want more than 16 channels so i use --midi-channels.
If I use it without port name:

fluidsynth --midi-channels 32 ./sf2/FluidR3_GM.sf2

I get two distinct random port name like:

Synth input port (75216:0)
Synth input port (75216:1)

If I add --portname:

fluidsynth --midi-channels 32 --portname 'my midi synth' ./sf2/FluidR3_GM.sf2

I get two identical port name:

my midi synth
my midi synth

how can I get several midi ports with static distinct port name ?

[derselbst]

how can I get several midi ports with static distinct port name ?

Currently, you can't. If a custom portname is given, it will be used for all ALSA ports.

fluidsynth/src/drivers/fluid_alsa.c

Lines 1119 to 1126 in 8eaa91b

	if(!portname)
	{
	snd_seq_port_info_set_name(port_info, fluid_alsa_seq_full_name(id, i, full_name, 64));
	}
	else
	{
	snd_seq_port_info_set_name(port_info, portname);
	}

Changing it should be straight forward. Provided that you don't need the ability to customize the "distinctiveness" of the portnames.

I would suggest to simply use:

my midi synth (12345:0)
my midi synth (12345:1)

Let me know your preference. I think I'll have time for that over Christmas holidays.