<div class="gmail_quote">2012/1/5 Rossana Guerra <<a href="mailto:guerra.rossana@gmail.com">guerra.rossana@gmail.com</a>> <blockquote class="gmail_quote" style="margin:0pt 0pt 0pt 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"> Hi I am trying to play an avi file, for some reasons I don't want to do it with a playbin. The fact is I had an avidemux and a mad decoder but not every avi file can play. Then I replaced it for the following pipeline, to get the most codecs. decodebin ----- queue ------ audioconvert ---- audioresample ------ autoaudiosink filescr --- avidemux --- decodebin ----- queue ------ ffmpegcolorspace ----- videoscale ----autovideosink I tryed to link avidemux - decodebin with on-pad event, and decodebin - queue as well. It didn't work. I tryed to link avidemux - decodebin with the following code, but it didn't work either. // demuxer avidemux's name // decvd a decodebin name for video, decad a decodebin name for audio. GstPad *targetsrc = gst_element_get_pad(demuxer, "video_%02"); GstPad *targetsrc2 = gst_element_get_pad(demuxer, "audio_%02"); GstPad *padV = gst_element_get_static_pad(decvd,"sink"); GstPad *padA = gst_element_get_static_pad(decad,"sink"); gst_pad_link (targetsrc,padV); gst_pad_link (targetsrc2,padA); Any suggestion? Thanks a lot. Rossana _______________________________________________ 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> I think this is the same error I wrote about in your last program. You can not get the srcpads from the avidemux, as they are dynamic pads. At this point, the demuxer can not know if there are audio and/or video streams at all. You have to create a pad-added callback for the demuxer as well. nicolai