ImportError: DLL load failed while importing _core: The specified module could not be found.

[vutung1671997]

Can't use av after build from source

Expected behavior

Build success from source at main

Actual behavior

i'm running with tutorial build in Readme

git clone git@github.com:PyAV-Org/PyAV
cd PyAV
source scripts/activate.sh
pip install --upgrade -r tests/requirements.txt
pip install wheel
python setup.py build --ffmpeg-dir=C:\ffmpeg

build success then run:
python setup.py install

Next run python:
python
import av

Before that:
Added env variable: C:\ffmpeg\lib, C:\ffmpeg\include, C:\ffmpeg, C:\ffmpeg\bin

OR build to whl, tar.gz and pip install av-11.0.0... ...whl install successfully but still error DLL

Build report:
...
Creating library build\temp.win-amd64-cpython-312\Release\src\av\video\stream.cp312-win_amd64.lib and object build\temp.win-amd64-cpython-312\Release\src\av\video\stream.cp312-win_amd64.exp
Generating code
Finished generating code
...

...
After import av and run error occur:

Traceback (most recent call last):
File "", line 1, in
File "E:\PyAV\av_init_.py", line 20, in
from av._core import time_base, library_versions
ImportError: DLL load failed while importing _core: The specified module could not be found.
...

Versions

• OS: Windows 10 Pro 19045.3803

• PyAV runtime: 11.0.0

• PyAV build: from main branch

• FFmpeg: C:/ffmpeg

Research

I have done the following:

• Checked the PyAV documentation
• Searched on Google
• Searched on Stack Overflow
• Looked through old GitHub issues
• Asked on PyAV Gitter
• ... and waited 72 hours for a response.

[stolen-programmer]

os.add_dll_directory(r'dll存放的位置')

import os

os.add_dll_directory(r'D:\work\repos\vcpkg\installed\x64-windows\bin')

import av



if __name__ == '__main__':
    av.open(r"C:\Users\20264\Downloads\test.mp4")

[WyattBlue]

Sorry, we don't support building from source on Windows.

[stolen-programmer]

Sorry, we don't support building from source on Windows.

I use vcpkg to build ffmpeg on Windows