here's an example that works with overlaying text on top of video gst-launch-0.10 v4l2src ! 'video/x-raw-yuv,width=640,height=480,framerate=30/1' ! \ timeoverlay halignment=right valignment=bottom shaded-background=true ! \ clockoverlay halignment=left valignment=bottom text="M/D/Y:" shaded-background=true time-format="%m/%d/%Y %H:%M:%S" ! \ tee name=t_vid ! queue ! xvimagesink sync=false t_vid. ! queue ! videorate ! \ 'video/x-raw-yuv,framerate=30/1' ! theoraenc ! queue ! oggmux ! \ filesink location=testogg.ogg <div class="gmail_quote">On Thu, Mar 1, 2012 at 9:50 AM, Tim-Philipp Müller <<a href="mailto:t.i.m@zen.co.uk" target="_blank">t.i.m@zen.co.uk</a>> wrote: <blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div>On Thu, 2012-03-01 at 11:40 -0800, kususe wrote: > I want to code a pipeline to overlay an image on a video. > First I would like to understand how to implement this one and then to code > it. > So I attemped with this: > > gst-launch filesrc location=/home/boss/test/video.mpg ! decodebin2 ! > videomixer name=mix ! xvimagesink filesrc location = > /home/boss/test/image.png ! pngdec ! ffmpegcolorspace ! mix > > but I got: "pipeline wrong. No element called mix" </div>I believe the syntax you're looking for is mix. with a trailing dot, this basically means "a suitable pad on the element named 'mix'". Cheers -Tim <div><div> _______________________________________________ gstreamer-devel mailing list <a href="mailto:gstreamer-devel@lists.freedesktop.org" target="_blank">gstreamer-devel@lists.freedesktop.org</a> <a href="http://lists.freedesktop.org/mailman/listinfo/gstreamer-devel" target="_blank">http://lists.freedesktop.org/mailman/listinfo/gstreamer-devel</a> </div></div></blockquote></div> --