Video4Linux Y12 Pixel Format for use with OpenCV issues

I have a AMG88xx infrared camera attached to a raspberry PI 4 i am using the linux video-i2c driver the driver appears to work correctly

v4l2-ctl -d /dev/video0 --all
    Driver Info:
        Driver name      : video-i2c
        Card type        : I2C 1-104 Transport Video
        Bus info         : I2C:1-104
        Driver version   : 4.19.102
        Capabilities     : 0x85200001
                Video Capture
                Read/Write
                Streaming
                Extended Pix Format
                Device Capabilities
        Device Caps      : 0x05200001
                Video Capture
                Read/Write
                Streaming
                Extended Pix Format
    Priority: 2
    Video input : 0 (Camera: ok)
    Format Video Capture:
        Width/Height      : 8/8
        Pixel Format      : 'Y12 ' (12-bit Greyscale)
        Field             : None
        Bytes per Line    : 16
        Size Image        : 128
        Colorspace        : Raw
        Transfer Function : Default (maps to None)
        YCbCr/HSV Encoding: Default (maps to ITU-R 601)
        Quantization      : Default (maps to Full Range)
        Flags             :
    Streaming Parameters Video Capture:
        Capabilities     : timeperframe
        Frames per second: 10.000 (10/1)
        Read buffers     : 1

However the output pixel format (Y12) appears to be unsupported by openCV

>>> import cv2
>>> capture = cv2.VideoCapture(0)
VIDEOIO ERROR: V4L2: Pixel format of incoming image is unsupported by OpenCV
VIDEOIO ERROR: V4L: can't open camera by index 0

Do I need to build OpenCV with additional support? or somehow convert the pixelformat?

Issue was related to missing pixel format in OpenCV (see Issue #16620) fixed by #16626

found by compareing video4linux pixelformats with those supported by openCV in modules/videoio/src/cap_v4l.cpp