Question 1

How to install libuvc on Ubuntu?

Accepted Answer

Install prerequisites with 'sudo apt-get install libusb-1.0-0-dev cmake', then clone the repo, run 'mkdir build', 'cd build', 'cmake ..', and 'make && sudo make install' as per the README. This ensures a proper build on Linux systems.

Question 2

libuvc vs OpenCV for webcam access: which should I use?

Accepted Answer

Use libuvc for low-level USB device control and custom driver development, while OpenCV is better for high-level video capture with built-in image processing. libuvc is more suited to hardware tinkering, OpenCV for computer vision apps.

Question 3

Can libuvc handle multiple cameras at once?

Accepted Answer

Yes, libuvc supports multiple UVC devices through libusb, but you must manage device enumeration and streaming manually in your application code, as it provides low-level access without built-in multiplexing.

Question 4

What platforms does libuvc officially support?

Accepted Answer

libuvc is cross-platform and works on Linux, macOS, and Windows, thanks to its libusb foundation. However, platform-specific quirks may require additional configuration or testing.

Question 5

How to adjust camera settings like brightness with libuvc?

Accepted Answer

Use libuvc's API to access UVC control interfaces; functions allow setting properties like brightness, contrast, and resolution by querying and modifying device descriptors in C code.

Question 6

Is there an example to test if libuvc works on my system?

Accepted Answer

Yes, enable the BUILD_EXAMPLE option during CMake: 'cmake .. -DBUILD_EXAMPLE=ON', then compile and run the example program. Note that it may require OpenCV for display, as mentioned in the README.

libuvc

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