Camera exposure
Locked
 
|
Hi list!
This is my first mail to the list, salut. 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. Thanks and cheers, Ian L. _______________________________________________ gstreamer-devel mailing list [hidden email] http://lists.freedesktop.org/mailman/listinfo/gstreamer-devel |
|
|
On 07/06/11 07:12, Ian Liu Rodrigues wrote:
Hi list!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. Stefan
_______________________________________________ gstreamer-devel mailing list [hidden email] http://lists.freedesktop.org/mailman/listinfo/gstreamer-devel |
|
|
The implementation of the interface would require knowledge in Linux drivers or is there already a layer between the driver and GStreamer?
Cheers, Ian L. On Thu, Jul 7, 2011 at 2:46 AM, Stefan Kost <[hidden email]> wrote:
_______________________________________________ gstreamer-devel mailing list [hidden email] http://lists.freedesktop.org/mailman/listinfo/gstreamer-devel |
|
|
The implementation of the interface would require knowledge in Linux drivers or is there already a layer between the driver and GStreamer? 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. Stefan
_______________________________________________ gstreamer-devel mailing list [hidden email] http://lists.freedesktop.org/mailman/listinfo/gstreamer-devel |
«
Return to GStreamer-devel
|
1 view|%1 views
| Free forum by Nabble | Edit this page |