issue with snapshots from command line via gstreamer
Richard A. Smith
richard at laptop.org
Wed Jun 17 17:31:08 EDT 2009
I'm using a small script to take snapshots with an OLPC every 30 seconds
using a gstreamer command line.
The wiki (http://wiki.laptop.org/go/Programming_the_camera) lists the
following as one method of doing this.
gst-launch-0.10 v4l2src ! ffmpegcolorspace ! pngenc ! filesink
However, this has a flaw because the camera is powered off when not in
use. When powered up the AGC circuit has to calibrate and that takes
more time than the above allows. You end up with pictures that have
various funky types of brightness and white balance issues.
Anybody know if there is a way to make gstreamer take multiple snapshots
and then just use the last one.
Richard Smith <richard at laptop.org>
One Laptop Per Child
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