Hi, You can follow the link <a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/0.10.30/pwg/html/section-types-typefind.html">http://gstreamer.freedesktop.org/data/doc/gstreamer/0.10.30/pwg/html/section-types-typefind.html</a> one can specify the rank in 'gst_type_find_register' api. Thanks, <div class="gmail_quote">On Wed, Jan 30, 2013 at 11:57 AM, Baby Octopus <<a href="mailto:jagadishkamathk@gmail.com" target="_blank">jagadishkamathk@gmail.com</a>> wrote: <blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">How does an autoplug element like decodebin work? Suppose if I add my own H264 decoder say mydec_h264dec which is better than avdec_h264, how does it choose between avdec_h264 and mydec_h264dec? Where is the rank specified? I'm quite new to this. I could not find this in docs ~BO -- View this message in context: <a href="http://gstreamer-devel.966125.n4.nabble.com/How-does-decodebin-work-tp4658226.html" target="_blank">http://gstreamer-devel.966125.n4.nabble.com/How-does-decodebin-work-tp4658226.html</a> Sent from the GStreamer-devel mailing list archive at Nabble.com. _______________________________________________ gstreamer-devel mailing list <a href="mailto:gstreamer-devel@lists.freedesktop.org">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> </blockquote></div> -- Regards, Rajnikant Jachak. The pessimist sees difficulty in every opportunity. The optimist sees the opportunity in every difficulty.