What is the most optimal way to acquire frames for a VPI pipeline?

I am currently deciding if I should build my low-latency CV pipeline directly in VPI or via self-made Deepstream plugins. Reading the documentation of VPI it is not entirely clear to me what the optimal handling and frame acquisition from two MIPI-CSI V4L2 cameras should be. Opening them via OpenCV incurrs a CPU transfer and a colour space conversion, but as far as I see I could pipe the NVMM images from the camera directly into the VPI pipeline. Are there best practices regarding this?


You can use Deepstream to read a camera frame and feed it into the VPI.
Please find below topic for the sample and discussion:


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