How to use GPU hardware accelerators with Open CV for decoding

I applied in an internship related to deep learning but they asked me this question in the interview but I can’t able to answer this " How to use GPU hardware accelerators with Open CV for decoding" please, anyone tell me from where to study about this

For decoding what? :slight_smile:

In general, an alternative will be to use OpenCL.
You can check Compiling OpenCV with CUDA support for reference to your problem.

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For encoding and decoding videos