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On 07/07/11 05:59, Ian Liu Rodrigues wrote:
<blockquote
cite="mid:CAD+ArX3yCQr9hkW4NPya0zTPpaHvTX0+j6fQ=-ZY1Wu_0+47iw@mail.gmail.com"
type="cite">The implementation of the interface would require
knowledge in Linux drivers or is there already a layer between the
driver and GStreamer?<br>
</blockquote>
<br>
Most of the setting in the interface would be mapped to
v4l2-controls. Have a look at the v4l2src source code and checkout
how e.g. the videobalance interface works. You would need to do the
same for additional controls. Its all user-space code, no driver
modifications needed.<br>
<br>
Stefan<br>
<blockquote
cite="mid:CAD+ArX3yCQr9hkW4NPya0zTPpaHvTX0+j6fQ=-ZY1Wu_0+47iw@mail.gmail.com"
type="cite"><br>
Cheers,<br>
Ian L.<br>
<br>
<div class="gmail_quote">On Thu, Jul 7, 2011 at 2:46 AM, Stefan
Kost <span dir="ltr"><<a moz-do-not-send="true"
href="mailto:ensonic@hora-obscura.de">ensonic@hora-obscura.de</a>></span>
wrote:<br>
<blockquote class="gmail_quote" style="margin: 0pt 0pt 0pt
0.8ex; border-left: 1px solid rgb(204, 204, 204);
padding-left: 1ex;">
<div bgcolor="#ffffff" text="#000000">
<div>
<div class="h5"> On 07/06/11 07:12, Ian Liu Rodrigues
wrote:
<blockquote type="cite">Hi list!<br>
<br>
This is my first mail to the list, salut.<br>
<br>
I would like to know if it is possible to control some
USB webcam properties, such as exposure time. I see
there is an interface called GstPhotography but it
seems the "camerabin" element does not implement it.<br>
</blockquote>
</div>
</div>
Yes, ideally the camera-source elements would need to
implement it. Right now v4l2src cannot implement it easily
as the interface is in bad. It would be good to add a copy
to v4l2src and implement the iface to see how well it goes,
then the interface should go to base and the copies get
removed.<br>
<br>
Stefan<br>
<blockquote type="cite">
<div class="im"> <br>
Thanks and cheers,<br>
Ian L.<br>
</div>
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