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wpilibsuite / WPILibPi

WPILib Raspberry Pi images designed for FRC (formerly FRCVision)
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Camera Settings not updating for exposure #123

Closed AkshatJain1 closed 5 years ago

AkshatJain1 commented 5 years ago

Using a Microsoft Lifecam 3000.

I put exposure_auto to manual and move exposure_absolute to 1 and the camera stream reflects these changes. However, once I click 'Copy Source Config' back in the web console and then click 'Save' at the bottom, it does not save the exposure. I click 'Open Camera Stream' and exposure_auto is set to automatic and the camera stream does not reflect my exposure.

I tried directly copying the source config instead of the 'Copy Source Config' button, but in the 'vision status' tab of the console, I am getting the following errors and the camera is still not reflecting the exposure changes.

CS: ERROR: ioctl VIDIOC_S_EXT_CTRLS failed at UsbCameraProperty.cpp:65: Invalid argument (UsbUtil.cpp:156) CS: ERROR: ioctl VIDIOC_S_EXT_CTRLS failed at UsbCameraProperty.cpp:65: Input/output error (UsbUtil.cpp:156) CS: ERROR: ioctl VIDIOC_S_EXT_CTRLS failed at UsbCameraProperty.cpp:65: Input/output error (UsbUtil.cpp:156)

PeterJohnson commented 5 years ago

If all you want to do is set manual exposure, don't use Copy Source Config. Clear that text box and just set the "exposure" setting to a number (0-100). I have heard some reports of exposure not consistently taking on some cameras, but the Lifecam should work.

AkshatJain1 commented 5 years ago

This worked. Even though when I click open camera stream, the settings don't change, the console output is setting the exposure to 1 without any errors.