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Date: Wed, 3 Sep 2025 17:28:26 +0200
From: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
To: Sakari Ailus <sakari.ailus@linux.intel.com>
Cc: Jacopo Mondi <jacopo.mondi@ideasonboard.com>,
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Subject: Re: [PATCH v11 21/66] media: v4l: uapi: Add a control for color
 pattern flipping effect
Message-ID: <20250903152826.GR3648@pendragon.ideasonboard.com>
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On Wed, Sep 03, 2025 at 04:25:11PM +0300, Sakari Ailus wrote:
> Hi Jacopo,
> 
> On Wed, Sep 03, 2025 at 02:37:56PM +0200, Jacopo Mondi wrote:
> > I'm not sure how many non-Bayer CFA cameras we do support, indeed we
> > should account for them, but am I wrong assuming the majority, if not
> > all, are Bayer, so having a quick reference might be useful.
> 
> Well, one important reason for not having non-Bayer pattern cameras is that
> we effectively only support Bayer patterns. :-) There are lots of different
> patterns, including different filters, but most devices can be configured
> to generate Bayer output. Also the size of the pattern may be larger than
> 2x2.

Quad bayer comes to mind, as well as 4x4 patterns where two of the 2x2
regions are regular Bayer and the other two are Bayer filters with green
replaced by Ir. Quad bayer may need extra thoughts, as some sensors
support "rebayering" the pixels and output regular Bayer.

> > Anyway, not feeling strong about this, up to you.
> 
> Thanks!

-- 
Regards,

Laurent Pinchart