Load DLS via memory loader?

[zefie]

I have a working SF2 memory loader, but when I try to load a DLS, it says "not a soundfont file" (which I have learned is normal), but also fails after that. Here is a log from a WASM build of my application:

engine.js:9 [FluidMem] defsfloader registered
engine.js:9 [FluidMem] fs_mem_open: 3440660 bytes (filename=__mem_sf2__)
engine.js:9 fluidsynth: error: Not a SoundFont file
engine.js:9 fluidsynth: error: fluid_sfloader_load(): Failed to open '__mem_sf2__': File does not exist.

This same function call works perfectly fine for SF2 files, and I don't see any DLS specific calls exposed in fluidsynth.h, so I am wondering if I am doing something wrong or if its a bug in FluidSynth.

Edit: This build v2.5.1 without libinstpatch, using the native DLS loader.

[derselbst]

The DLS loader is currently not exposed via API. The defsfont_loader is only able to load SF2. Sry.