can't open camera by index

[Leonardoperrella]

2022-10-13 11:22:52.632939: I tensorflow/core/platform/cpu_feature_guard.cc:193] This TensorFlow binary is optimized with oneAPI Deep Neural Network Library (oneDNN) to use the following CPU instructions in performance-critical operations: AVX2 FMA
To enable them in other operations, rebuild TensorFlow with the appropriate compiler flags.
2022-10-13 11:22:52.831699: W tensorflow/stream_executor/platform/default/dso_loader.cc:64] Could not load dynamic library 'libcudart.so.11.0'; dlerror: libcudart.so.11.0: cannot open shared object file: No such file or directory; LD_LIBRARY_PATH: /home/perrella/vscodecamera/MS-Teams-background-changer/venv/lib/python3.10/site-packages/cv2/../../lib64:/opt/oracle/instantclient_21_4
2022-10-13 11:22:52.831731: I tensorflow/stream_executor/cuda/cudart_stub.cc:29] Ignore above cudart dlerror if you do not have a GPU set up on your machine.
2022-10-13 11:22:52.869068: E tensorflow/stream_executor/cuda/cuda_blas.cc:2981] Unable to register cuBLAS factory: Attempting to register factory for plugin cuBLAS when one has already been registered
2022-10-13 11:22:53.715209: W tensorflow/stream_executor/platform/default/dso_loader.cc:64] Could not load dynamic library 'libnvinfer.so.7'; dlerror: libnvinfer.so.7: cannot open shared object file: No such file or directory; LD_LIBRARY_PATH: /home/perrella/vscodecamera/MS-Teams-background-changer/venv/lib/python3.10/site-packages/cv2/../../lib64:/opt/oracle/instantclient_21_4
2022-10-13 11:22:53.715306: W tensorflow/stream_executor/platform/default/dso_loader.cc:64] Could not load dynamic library 'libnvinfer_plugin.so.7'; dlerror: libnvinfer_plugin.so.7: cannot open shared object file: No such file or directory; LD_LIBRARY_PATH: /home/perrella/vscodecamera/MS-Teams-background-changer/venv/lib/python3.10/site-packages/cv2/../../lib64:/opt/oracle/instantclient_21_4
2022-10-13 11:22:53.715317: W tensorflow/compiler/tf2tensorrt/utils/py_utils.cc:38] TF-TRT Warning: Cannot dlopen some TensorRT libraries. If you would like to use Nvidia GPU with TensorRT, please make sure the missing libraries mentioned above are installed properly.
set format result (0 is good):0
INFO: Created TensorFlow Lite XNNPACK delegate for CPU.
[ WARN:0@2.500] global /io/opencv/modules/videoio/src/cap_v4l.cpp (889) open VIDEOIO(V4L2:/dev/video2): can't open camera by index

[Leonardoperrella]

After running main.py

[Aexbrayat]

hi same error for me did you find a solution ? thx

[prabhakar-sivanesan]

Hi,

You might have to check your input camera index and change this data in config file.
Use this v4l2-ctl --list-devices command to know your input camera device id and change accordingly.