<table cellspacing="0" cellpadding="0" border="0" ><tr><td valign="top" style="font: inherit;">Beside, in your paste, there is no ffmpegcolorspace at all. I tried your pipeline with some movies (audio/video). gst-launch -v rtspsrc location=rtsp://localhost/sample_100kbit.mp4 ! decodebin ! ffmpegcolorspace ! textoverlay text="Hello Wolrld" ! autovideosink When I have a ffmpegcolorspace before textoverlay, it is always ok. when not, pipeline always fails to link. Best is ffmpegcolorspace does nothing : caps on src and sink are the same. This also works if ffmpegcolorspace is replaced by any element with "always pads" like videoscale or videorate. I think this is a gst-launch negotiation problem : decodebin has a "sometimes" src pad and textoverlay has 2 sink pads. It also works without ffmpegcolorspace if you change textoverlay to clockoverlay (1 sink pad) or timeoverlay --- En date de : Jeu 31.7.08, Michael Smith <msmith@xiph.org> a écrit : <blockquote style="border-left: 2px solid rgb(16, 16, 255); margin-left: 5px; padding-left: 5px;">De: Michael Smith <msmith@xiph.org> Objet: Re: [gst-devel] Reading and displaying a rtsp stream À: "Discussion of the development of GStreamer" <gstreamer-devel@lists.sourceforge.net> Date: Jeudi 31 Juillet 2008, 19h25 <pre>On Thu, Jul 31, 2008 at 12:21 AM, Ekrem SEREN <ekrem.seren@gmail.com> wrote: > I'm trying to read a rtsp stream over network and view/record it. PlayBin > works fine with rtsp like below; > > $ gst-launch playbin uri=rtsp://localhost:5554/Camera1 > > It displays the stream. But I couldn't get it to work with my own pipeline; > > $ gst-launch -v rtspsrc location=rtsp://localhost:5554/Camera1 ! decodebin ! > fmpegcolorspace ! textoverlay text="fsvbzlvcjzjhkvhlkczvjkd " ! autovideosink Does it work with another ffmpegcolorspace after the textoverlay? Your video sink might not support I420 (the only format that textoverlay supports). You also in general might need a videoscale (though probably not in this case). Mike ------------------------------------------------------------------------- This SF.Net email is sponsored by the Moblin Your Move Developer's challenge Build the coolest Linux based applications with Moblin SDK & win great prizes Grand prize is a trip for two to an Open Source event anywhere in the world http://moblin-contest.org/redirect.php?banner_id=100&url=/ _______________________________________________ gstreamer-devel mailing list gstreamer-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/gstreamer-devel </pre></blockquote></td></tr></table> <hr size="1"> Envoyé avec <a href="http://us.rd.yahoo.com/mailuk/taglines/isp/control/*http://us.rd.yahoo.com/evt=52423/*http://fr.docs.yahoo.com/mail/overview/index.html">Yahoo! Mail</a>. Une boite mail plus intelligente. </a>