Godot Engine Audio Waveform Module
This is Godot Engine custom module based on the engine internal waveform preview code.
It copies original AudioStreamPreview and AudioStreamPreviewGenerator C++ classes and makes it available in GDScript.
Supported Godot version
It's compatible with Godot 3.4
Installing
If you don't have Godot source yet, download it from repo
git clone https://github.com/godotengine/godot.git
Checkout to supported branch git checkout 3.4
Copy the folder audio_stream_preview_generator to Godot modules folder
Recompile the engine (change the platform to yours)
scons platform=osx arch=arm64 --jobs=$(sysctl -n hw.logicalcpu)
And run the new build:
./bin/godot.osx.tools.arm64
Usage example
In opened project manager window, choose the project folder audio_wave_test
Look to audio_waveform.gd script. It contains an example of drawing a waveform.
Run the project.
Have fun!