Hello
Looking at the buffer flags set by the v4l2 driver on a Logitech C920, I don't see the keyframe flag set where appopriate
And I didn't see any code that should be doing this in the kernel either
Is this missing functionality, or ...?
Ford_Prefect: If I am not wrong the there isnt any driver logitech c920 camera, It probably uses UVC
prabhakarlad: correct, I was looking at the uvc-related code
pinchartl: ^
Ford_Prefect: Yea there isnt any functionality in UVC as of now. But I feel it should be easy to add. Altough Laurent would be better person to answer this
1
Cool, would be nice to have
Ford_Prefect: I suppose you're referring to H.264 support ?
UVC 1.5 isn't supported in the mainline kernel at the moment
pinchartl: yes, the h.264 support. So uvc 1.5 is where this information is available?
logitech might also implement H.264 over UVC 1.1 in the C920, I'm not sure
but that's not well-standardized
and requires specialized userspace
it should really be handled using UVC 1.5
Got it, thanks
patches have been posted
I've reviewed all of them but the last one
it's "just" a matter of finding time to finish the work
:)