If you are doing heavy lifting, look into the V4L2 memory mapping ( mmap ) to pass frames directly to the GPU. Helpful Resources
Best for simple "capture and save" tasks. This interacts directly with the Linux kernel's video drivers. 3. Basic Capture Logic (OpenCV) Pascal Webcam Raspberry
Raspberry Pis (especially older models) may struggle with 1080p processing in real-time. Stick to 640x480 for smoother frame rates during testing. If you are doing heavy lifting, look into