Fluidsynth fails to load a valid DLS file

[spessasus]

FluidSynth version

FluidSynth runtime version 2.4.0
Copyright (C) 2000-2024 Peter Hanappe and others.
Distributed under the LGPL license.
SoundFont(R) is a registered trademark of Creative Technology Ltd.

FluidSynth executable version 2.4.0
Sample type=double

Describe the bug

The provided DLS file does not load correctly:

fluidsynth: error: Not a SoundFont file
fluidsynth: error: ipatch_dls_reader_new() failed with error: 'DLS Reader error: Invalid data (ofs=14188, traceback ['fmt ' ofs=0x14186, size=18 <= 'wave' ofs=0x1417A, size=328 <= 'wvpl' ofs=0x1416E, size=112350 <= 'DLS ' ofs=0x0, size=194774])'
fluidsynth: error: Failed to load SoundFont "/home/spessasus/the_good_stuff/soundfonts/downloadable_sounds/Nokia_S30.dls"
Failed to load the SoundFont /home/spessasus/the_good_stuff/soundfonts/downloadable_sounds/Nokia_S30.dls
Type 'help' for help topics.

Expected behavior

The file should load. I know that this is a valid file since it opens in:

• SynthFont Viena
• Winamp in the MIDI Decoder configuration
• Awave Studio
• SpessaSynth

Steps to reproduce

1. Grab this: Nokia_S30.dls.zip NOTE: Remove .zip, this is just the raw DLS file.
2. fluidsynth Nokia_S30.dls
3. See the error

Additional context

no

[spessasus]

Additional note: Viena produces corrupted audio data due to WAVE chunks in this list using A-law algorhitm. Winamp does not have this issue.

[spessasus]

Swami also fails with the same error as fluid. It may be libinstpatch's fault?