Re: [fluid-dev] Problems with Ladspa effects

[Marcus Weseloh]

Hi again,

I've create an issue on GitHub to further discuss the required code changes:
https://github.com/FluidSynth/fluidsynth/issues/793

Cheers
Marcus

Am Fr., 5. März 2021 um 13:51 Uhr schrieb Marcus Weseloh <marcus@weseloh.cc>:
>
> Hi Carlos,
>
> your thinking about the audio-channels and audio-groups is correct and
> should work as you intended.
>
> And the reason why you are seeing the "Maximum number of nodes
> reached" error is because we were way too conservative when setting
> the upper bound for nodes in the effects graph, I see that now.
> The think is, that nearly everythink in the LADSPA system is a "node",
> including controls for effects. So loading a single effect that has 5
> controls already creates 6 nodes. The host mono buffers are also
> nodes, as are the user created buffers.
> So reaching the current upper limit of 100 nodes is actually not too
> difficult, especially in a multi-channel setup like yours.
>
> We could simply increase the MAX_NODES count to something like 500 or
> more... but maybe it might be even better to simply do dynamic
> allocation here.
>
> As a quick fix, you could simply change FLUID_LADSPA_MAX_NODES in
> bindings/fluid_ladspa.c to a higher number and compile it again.
>
> Cheers
> Marcus