Hi, folks: I’m trying to connect the low light USB camera to the usb_cam ROS node, and it works fine at 640x480, but I can’t seem to get higher resolutions to work. Can you provide details about the chipset and supported resolutions and encodings?

The camera presents two video devices to the OS (you might see more here if you have a webcam): $ ls /dev/video* /dev/video0 /dev/video1 The first device outputs MJPG format and the second device outputs H.264 format: $ v4l2-ctl --device=0 --list-formats ioctl: VIDIOC_ENUM_FMT Index : 0 …

USB camera to ROS

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clyde (Clyde McQueen) October 25, 2017, 6:19pm 3

Thanks for the quick response and info! This appears to be a bug in the ROS usb_cam driver. You can follow along here, if you want: outbuf size mismatch; YUV420P vs. YUV422P · Issue #79 · ros-drivers/usb_cam · GitHub

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