On 13:31 Mon 28 Apr 2008, Claudiu Constantinescu wrote:
>      I have the problem of a camera mounted upside-down in an Asus x55
> (Bus 007 Device 003: ID 04f2:b012 Chicony Electronics Co., Ltd).
> luvcview -f yuv works and displays the image bottom side up. I think
> there is no way that the uvc driver can vertically flip the image
> (correct me if I'm wrong).
>      I don't know if this is the correct place to ask for this, but
> does anyone know of any userspace or kernel implementations, or a
> patch to the uvc driver, that would duplicate the video device and
> flip it upside down?

There is some work going on to pull frames from the Kernel, munge them
(such as decode, flip), and push them back into the Kernel on a
different device node: http://linuxtv.org/hg/~tmerle/v4l2_extension

However, ideally there would be a standard V4L2 library that all
applications would build upon that would provide a simple flip operation
and possibly a config file like ALSA.  But, in our current state every
application needs to be modified to allow for a flip option.

Cheers,

        Brandon
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