Ok. I did the following: static gboolean examplefilter_init (GstExampleFilter * examplefilter) {   GST_DEBUG_CATEGORY_INIT (gst_example_filter_debug, "examplefilter", 0, "Template examplefilter");   return gst_element_register (examplefilter, "examplefilter", GST_RANK_<tt>MARGINAL</tt>, GST_ELEMENT_FACTORY_TYPE_DECODER); } static void gst_example_filter_base_init (gpointer gclass) {   GstElementClass *element_class = GST_ELEMENT_CLASS (gclass);   gst_element_class_set_details_simple(element_class,     "ExampleFilter",     "Decoder/Video",     "Description",     "Steffen Roeber");   gst_element_class_add_pad_template (element_class, gst_static_pad_template_get (&src_factory));   gst_element_class_add_pad_template (element_class, gst_static_pad_template_get (&sink_factory)); } The _init() functions of my decoder are called. But the gst_example_filter_set_caps is not called. I always get a Your GStreamer installation is missing a plug-in. message. Whcih function should be called at my Plugin at next? I found that the gst_riff_create_video_caps function returned 0, because it did not find my native fourcc code. How is the fourcc transmitted to my plugin and how should I check it? Hella Aglaia Mobile Vision GmbH Steffen Roeber Firmware & Tools Treskowstr. 14, D-13089 Berlin Amtsgericht Berlin-Charlottenburg HRB 66976 B Geschäftsführer: Kay Talmi Fon:  +49 30 200 04 29– 412 Fax:  +49 30 200 04 29– 109 Mail: Steffen.Roeber@hella.com URL: www.aglaia-gmbh.de URL: www.mobilevision.de Dieses Dokument ist vertraulich zu behandeln. Die Weitergabe sowie Vervielfältigung, Verwertung und Mitteilung seines Inhalts ist nur mit unserer ausdrücklichen Genehmigung gestattet. Alle Rechte vorbehalten, insbesondere für den Fall der Schutzrechtsanmeldung. This document has to be treated confidentially. Its contents are not to be passed on, duplicated, exploited or disclosed without our express permission. All rights reserved, especially the right to apply for protective rights. <table width=100%> <tr valign=top> <td width=41%>Sebastian Dröge/ ( Gesendet von: gstreamer-devel-bounces+steffen.roeber=hella.com@lists.freedesktop.org 05.09.2011 13:44 <table border> <tr valign=top> <td bgcolor=white> <div align=center>Bitte antworten an Discussion of the development of and with GStreamer        <gstreamer-devel@lists.freedesktop.org></div></table> <td width=58%> <table width=100%> <tr valign=top> <td> <div align=right>An</div> <td>Discussion of the development of and with GStreamer <gstreamer-devel@lists.freedesktop.org> <tr valign=top> <td> <div align=right>Kopie</div> <td> <tr valign=top> <td> <div align=right>Thema</div> <td>Re: decodebin2 and plugins</table> <table> <tr valign=top> <td> <td></table> </table> <tt>On Mon, 2011-09-05 at 13:16 +0200, Steffen.Roeber@hella.com wrote: > > Hi, > I tried to create a decoder for our native avi files. But I cannot > find an example of how to use it, so that decodebin2 does regconize it > as a valid decoder plugin. Can anybody help me? You have to give it a rank >= GST_RANK_MARGINAL and add "Decoder" to the element factory classification. The decoder element with the highest rank that accepts the stream's caps will be selected by decodebin2. _______________________________________________ gstreamer-devel mailing list gstreamer-devel@lists.freedesktop.org http://lists.freedesktop.org/mailman/listinfo/gstreamer-devel </tt>