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2. Hit the <code>▶</code>(Play) button to call the open media window.[[File:Mvcam via qv4l2.png|center|thumb|800x800px|Play mv camera using qv4l2 on RPI|link=http://wiki.veye.cc/index.php/File:Mvcam_via_qv4l2.png]]<br />
2. Hit the <code>▶</code>(Play) button to call the open media window.[[File:Mvcam via qv4l2.png|center|thumb|800x800px|Play mv camera using qv4l2 on RPI|link=http://wiki.veye.cc/index.php/File:Mvcam_via_qv4l2.png]]<br />
−====== Preview GREY format images using opencv ======
+====== Preview GREY format images using Opencv ======
* install opencv
* install opencv
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On Raspberry Pi 5, you need to add a <code>--ctldev /dev/v4l-subdev*</code> parameter to specify the subdev for configuring parameters.
On Raspberry Pi 5, you need to add a <code>--ctldev /dev/v4l-subdev*</code> parameter to specify the subdev for configuring parameters.
+
+====== Preview GREY format images using gstreamer ======
+<code>export DISPLAY=:0</code>
+
+<code>gst-launch-1.0 v4l2src device=/dev/video0 ! video/x-raw,format=GRAY8,width=$WIDTH,height=$HEIGHT,framerate=$FPS/1 ! videoconvert ! autovideosink</code>
==== Trigger mode ====
==== Trigger mode ====