UVC Cameras on Linux
Command Line Operations
Install V4L utility packages
List the UVC devices connected to the USB port
Some devices will display 2 video nodes as follows:
One of the devices is used for regular YUV/MJPEG compression outputs, and the other is used for H.264 coding output. The users can use different programs to open the two devices at the same time, H.264 for streaming and MJPEG for audio recording or computer vision processing.
List the detailed information of each video node
You can check the features of each video node, like compression format, resolutions and so on.
VLC media player
Install VLC media player
Right-click on the interface, go to Open Media -> Open Capture Device
In the Capture Device tab, you can select the capture mode and video device, or toggle the advanced options.
Here are the parameters you can toggle in the advanced options.
Once you click OK to save the advanced options and then Play in the Open Media window, you will be able to see the video feed.