Cameras that lie about their properties

[dronir]

I'm using an Alcor OMEA allsky camera, which seems to be based on a DMK 51AU02.AS camera by The Imaging Source. This camera (and others in its family) has the unfortunate feature that it lies about its pixel format: it reports BA81 (a BGGR pattern) while in fact the correct format would be SGBRG8. This leads to the debayering being done with the wrong pattern and messed-up colours.

Since there's no way to force the correct pattern when the camera itself is wrong, I had to made a fork with an ugly hack that basically just skips the check against the value given by the camera. That works fine for me, so it's not a big deal now. This is more of a FYI.

The same issue is dealt by the oaCapture software with a similar hack, https://github.com/openastroproject/openastro/blob/master/liboacam/v4l2/V4L2getState.c#L117