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fix camera type and enhance readme with pyzbar problem

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scito 2022-12-31 21:02:05 +01:00
parent e311386a15
commit 1af6fe3161
2 changed files with 25 additions and 2 deletions
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23
README.md
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@ -108,6 +108,29 @@ For a detailed installation documentation of [pyzbar](https://github.com/Natural
The zbar DLLs are included with the Windows Python wheels. On other operating systems, you will need to install the zbar shared library.
##### Windows error message
If you see an ugly ImportError when importing [pyzbar](https://pypi.org/project/pyzbar/) on Windows you will most likely need the [Visual C++ Redistributable Packages for Visual Studio 2013](https://www.microsoft.com/en-US/download/details.aspx?id=40784). Install vcredist_x64.exe if using 64-bit Python, vcredist_x86.exe if using 32-bit Python.
```
Traceback (most recent call last):
File "C:\Users\Admin\AppData\Local\Packages\PythonSoftwareFoundation.Python.3.11_qbz5n2kfra8p0\LocalCache\local-packages\Python311\site-packages\pyzbar\zbar_library.py", line 58, in load
dependencies, libzbar = load_objects(Path(''))
^^^^^^^^^^^^^^^^^^^^^^
File "C:\Users\Admin\AppData\Local\Packages\PythonSoftwareFoundation.Python.3.11_qbz5n2kfra8p0\LocalCache\local-packages\Python311\site-packages\pyzbar\zbar_library.py", line 50, in load_objects
deps = [
^
File "C:\Users\Admin\AppData\Local\Packages\PythonSoftwareFoundation.Python.3.11_qbz5n2kfra8p0\LocalCache\local-packages\Python311\site-packages\pyzbar\zbar_library.py", line 51, in <listcomp>
cdll.LoadLibrary(str(directory.joinpath(dep)))
File "C:\Program Files\WindowsApps\PythonSoftwareFoundation.Python.3.11_3.11.496.0_x64__qbz5n2kfra8p0\Lib\ctypes\__init__.py", line 454, in LoadLibrary
return self._dlltype(name)
^^^^^^^^^^^^^^^^^^^
File "C:\Program Files\WindowsApps\PythonSoftwareFoundation.Python.3.11_3.11.496.0_x64__qbz5n2kfra8p0\Lib\ctypes\__init__.py", line 376, in __init__
self._handle = _dlopen(self._name, mode)
^^^^^^^^^^^^^^^^^^^^^^^^^
FileNotFoundError: Could not find module 'libiconv.dll' (or one of its dependencies). Try using the full path with constructor syntax.
```
#### Linux (Debian, Ubuntu, ...)
sudo apt-get install libzbar0

4
src/extract_otp_secrets.py
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@ -165,7 +165,7 @@ python extract_otp_secrets.py = < example_export.png"""
arg_parser.add_argument('infile', help="""a) file or - for stdin with 'otpauth-migration://...' URLs separated by newlines, lines starting with # are ignored;
b) image file containing a QR code or = for stdin for an image containing a QR code""", nargs='*' if qreader_available else '+')
if qreader_available:
arg_parser.add_argument('--camera', '-C', help='camera number of system (default camera: 0)', default=0, nargs=1, metavar=('NUMBER'))
arg_parser.add_argument('--camera', '-C', help='camera number of system (default camera: 0)', default=0, type=int, nargs=1, metavar=('NUMBER'))
arg_parser.add_argument('--qr', '-Q', help=f'QR reader (default: {QRMode.ZBAR.name})', type=str, choices=[mode.name for mode in QRMode], default=QRMode.ZBAR.name)
arg_parser.add_argument('--json', '-j', help='export json file or - for stdout', metavar=('FILE'))
arg_parser.add_argument('--csv', '-c', help='export csv file or - for stdout', metavar=('FILE'))
@ -213,7 +213,7 @@ def extract_otps_from_camera(args: Args) -> Otps:
qr_mode = QRMode[args.qr]
cam = cv2.VideoCapture(args.camera)
cam = cv2.VideoCapture(args.camera[0])
window_name = "Extract OTP Secrets: Capture QR Codes from Camera"
cv2.namedWindow(window_name, cv2.WINDOW_AUTOSIZE)