Stack Overflow while writing OGG

[littlecattle]

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If write long frames to ogg, python will crash without any traceback or info. After faulthandler enabled, it will give "Windows fatal exception: stack overflow" Environments: Windows 10, Python 3.10.8

import faulthandler
import soundfile
import numpy as np

faulthandler.enable()

def work():
    f = soundfile.SoundFile("random.ogg", "w", 44100, 1)
    data = np.random.randn(600000)
    f.write(data)

work()

Oddly, while reduced to 500000, it will run successfully probabilistically or give "access violation".

While python Crashed, the output ogg truncated at 4KB.

For the stack limit of Windows dll call, a solution is to run in a new Thread.

import threading

threading.stack_size(16777216)
t = threading.Thread(target=work)

t.start()
t.join()

I can't confirm whether other problems related to ogg write crashes are also this reason. I think it is possible to add instructions in the documentation or provide other thread wrapping methods.

[bastibe]

Thank you for the bug report. However, I'm afraid you'll have to create the bug report in libsndfile, the C library soundfile is built upon. Segfaults are not generally caused by soundfile, but usually somewhere in the OGG decoder inside libsndfile.