How to debug video in the Linux Kernel?

[Ricardo Ribalda Delgado]

Hi John
On Thu, Jun 7, 2018 at 2:05 PM John Whitmore <arigead at gmail.com> wrote:

>
> Maybe that problem is not in the kernel at all but vlc does display videos
> correctly. I've also been through all the vlc settings and can't find anything
> that makes a different.

Have you tried using qv4l2 from Hans Vekuil:

https://events.static.linuxfound.org/sites/events/files/slides/v4l2-testing_0.pdf

as a test application?