Describe the feature and motivation

Hello!

Thanks for your work in this project.

I'm using OpenCV VideoCapture in order to download decode a few frames from a video downloaded from a remote location. OpenCV seems to be working pretty well for both H.264 and H.265 file format but it requires a file handle in the VideoCapture constructor. This means that in order to pass a downloaded object we need to first save to a temporary file and then pass the resulting path passed to VideoCapture.

Would you consider adding support to a byte object in the constructor?

Additional context

No response