From: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
To: Sakari Ailus <sakari.ailus@iki.fi>
Cc: Prabhakar Lad <prabhakar.csengg@gmail.com>,
Hans Verkuil <hverkuil@xs4all.nl>,
Guennadi Liakhovetski <g.liakhovetski@gmx.de>,
Sylwester Nawrocki <s.nawrocki@samsung.com>,
dlos <davinci-linux-open-source@linux.davincidsp.com>,
linux-media <linux-media@vger.kernel.org>,
Prabhakar Lad <prabhakar.lad@ti.com>,
Manjunath Hadli <manjunath.hadli@ti.com>
Subject: Re: Gain controls in v4l2-ctrl framework
Date: Mon, 24 Sep 2012 22:42:27 +0200 [thread overview]
Message-ID: <51868809.nWmvjZBbrW@avalon> (raw)
In-Reply-To: <20120924200634.GK12025@valkosipuli.retiisi.org.uk>
Hi Sakari,
On Monday 24 September 2012 23:06:34 Sakari Ailus wrote:
> On Sun, Sep 23, 2012 at 04:56:21PM +0530, Prabhakar Lad wrote:
> > Hi All,
> >
> > The CCD/Sensors have the capability to adjust the R/ye, Gr/Cy, Gb/G,
> > B/Mg gain values.
> > Since these control can be re-usable I am planning to add the
> > following gain controls as part
> > of the framework:
> >
> > 1: V4L2_CID_GAIN_RED
> > 2: V4L2_CID_GAIN_GREEN_RED
> > 3: V4L2_CID_GAIN_GREEN_BLUE
> > 4: V4L2_CID_GAIN_BLUE
>
> One more thing: There's an analogue gain control already in the image source
> class. I think we should explicitly say that the gains are digital (vs.
> analogue).
Some sensors have per-component analog and digital gains :-)
--
Regards,
Laurent Pinchart
next prev parent reply other threads:[~2012-09-24 20:41 UTC|newest]
Thread overview: 26+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-09-23 11:26 Gain controls in v4l2-ctrl framework Prabhakar Lad
2012-09-23 13:20 ` Sakari Ailus
2012-09-23 16:17 ` Laurent Pinchart
2012-09-23 16:27 ` Sakari Ailus
2012-09-24 11:05 ` Laurent Pinchart
2012-09-24 10:55 ` Hans de Goede
2012-09-24 11:00 ` Laurent Pinchart
2012-09-24 11:04 ` Hans de Goede
2012-09-24 14:42 ` Prabhakar Lad
2012-09-24 17:17 ` Chris MacGregor
2012-09-24 18:46 ` Hans de Goede
2012-09-24 19:16 ` Chris MacGregor
2012-09-24 20:12 ` Sakari Ailus
2012-09-24 20:27 ` Laurent Pinchart
2012-09-24 20:06 ` Sakari Ailus
2012-09-24 20:42 ` Laurent Pinchart [this message]
2012-09-26 6:44 ` Prabhakar Lad
2012-09-26 6:53 ` Chris MacGregor
2012-09-26 7:01 ` Prabhakar Lad
2012-09-26 7:42 ` Sakari Ailus
2012-09-26 7:46 ` Prabhakar Lad
2012-09-26 7:54 ` Sakari Ailus
2012-09-26 8:06 ` Prabhakar Lad
2012-09-26 14:42 ` Chris MacGregor
2012-09-26 15:23 ` Laurent Pinchart
2012-09-26 19:23 ` Sakari Ailus
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