Screen freezes on Android when calling AudioEffectSpectrumAnalyzerInstance.get_magnitude_for_frequency_range

[bumblemeow]

Godot version

v3.5.stable.official [991bb6a]

System information

Android 4.4.2, Nvidia TD580D-A1 quad-core Tegra K1 processor, GLES3

Issue description

The issue is that the screen freezes (no screen updates, input stops working) at seemingly random times when I call AudioEffectSpectrumAnalyzerInstance.get_magnitude_for_frequency_range in the _process function. I've only seen this happen on my only Android device (an old Google Project Tango tablet). The same code works fine on macOS and all of my iOS devices.

I expected the screen to not freeze.

Steps to reproduce

1. Export an Android APK for the attached sample project.
2. Install the APK on an android device (I've only tested 1 device as I only own 1, but I'll try to test more).
3. Run the game and wait for anywhere from 10 seconds to a couple of minutes and notice the screen freezes while the audio continues to run. If you comment out line 20 in Main.gd (the one calling get_magnitude_for_frequency_range) game will run fine for as long as you let it (I ran it for 15 minutes without crashing).

Minimal reproduction project

TestSpectrumAnalyzer.zip

[Calinou]

GLES3

Try switching to the GLES2 renderer. I'm surprised GLES3 even starts on such an old device…

[bumblemeow]

Hello,

I switched to GLES2, enabling ETC in the process as required and I get the same result.

D/libEGL (20840): loaded /system/lib/egl/libEGL_tegra.so
I/ (20840): Attempting to load EGL implementation libEGL_tegra_impl
I/ (20840): Loaded EGL implementation libEGL_tegra_impl
D/libEGL (20840): loaded /system/lib/egl/libGLESv1_CM_tegra.so
D/libEGL (20840): loaded /system/lib/egl/libGLESv2_tegra.so
I/ (20840): Loading GLESv2 implementation libGLESv2_tegra_impl
D/OpenGLRenderer(20840): Enabling debug mode 0
W/RegularContextFactory(20840): creating OpenGL ES 2.0 context :
W/RegularContextFactory(20840): creating OpenGL ES 2.0 context :
I/godot (20840): Godot Engine v3.5.stable.official.991bb6ac7 - https://godotengine.org
I/godot (20840): OpenGL ES 2.0 Renderer: NVIDIA Tegra

Can you think of any other debugging tips I can try? I'm sure this probably doesn't effect many users but I would love to figure out why it's freezing.

Thanks again,

Joshua

[bumblemeow]

I tried running the app under the debugger in Android Studio. I'm new to android debugging so I'm not really sure what I'm doing. It does complain about missing symbols for libc++shared.so and libgodotandroid.so.

I tried looking at thread dumps both before and after the screen freezes on the device but they weren't helpful to me.

Any debugging advice will be greatly appreciated.

Thanks again,

Joshua

[mmmpipi]

Still happening in 4.4.
Edit: Also happening in 4.3，4.2.2，4.1.4
use Android 12