On Fri, Sep 25, 2020 at 03:42:36PM +0200, Jan Stary wrote: Hello Jan,
>> *However*, uvideo currently doesn't support the ability to set things like >> zoom, pan, and, exposure. That latter is a problem for cameras (like my >> Logitech C920) that do auto-exposure: no matter what framerate you ask >> for, they continually adjust it to match what they think the exposure >> should be. > I have a similar problem with some Logitechs using auto*focus*: the moving > figure in front of a whiteboard, for example, makes the camera refocus > constantly, producing an unwatchable video. The best advice I've seen is to turn off all auto features in cameras when recording videos, for just that reason! However, most of those auto-features (including auto-focus) are part of the UVC camera terminal control request (4.2.2.1 in the 1.5 version of the UVC spec). It's probably not rocket science to add support for that part of the spec to uvideo for someone who's familiar with those general parts of the kernel, but it is work, and I'm not aware that anyone's currently looking into it (but I would love to be wrong about that!). Laurie
