<div>thanks Emile,<br></div><div>it works</div><br><div class="gmail_quote">On Wed, May 23, 2012 at 12:39 PM, Emile Semmes <span dir="ltr"><<a href="mailto:emile.semmes@e6group.com" target="_blank">emile.semmes@e6group.com</a>></span> wrote:<br> <blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"> <div bgcolor="#FFFFFF" text="#000000"> Hi Maxime,<br> <br> For mpegtsdemux, you can't link the src pads until they are added. This happens during runtime so you'll need to add a signal handler on the pad-added signal from the mpegtsdemux element. Take a look at section 8.1 of the documentation (<a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/manual/html/chapter-pads.html" target="_blank">http://gstreamer.freedesktop.org/data/doc/gstreamer/head/manual/html/chapter-pads.html</a>) for an example on how this is done. Section 8.1.1 uses oggdemux but the method is the same. In your callback, you can link your pad there. Pay attention to the caps since you don't until later if it's an audio or video track.<br> <br> HTH,<br> <br> Emile<br> <pre cols="72">-- Emile Semmes Software Consultant e6 Group, LLC Office: <a href="tel:%28630%29%20376-0626" value="+16303760626" target="_blank">(630) 376-0626</a> <a href="http://www.e6group.com" target="_blank">www.e6group.com</a></pre><div><div class="h5"> <br> <br> On 5/22/2012 8:56 AM, Maxime Louvel wrote: </div></div><blockquote type="cite"><div><div class="h5"> <div>HI,<br clear="all"> </div> <div><br> </div> <div>I'm trying to build the following pipeline with a C application :</div> <div>gst-launch -e udpsrc port=5000 caps="application/x-rtp, media=video, encoding-name=MP2T-ES" ! rtpmp2tdepay ! mpegtsdemux ! filesink location=videodstRDO.mpeg</div> <div><br> </div> <div>when using gst-launch it works fine, but when I use a C application here is the error I get (with GST_DEBUG=3) :</div> <div>0:00:00.032693078 12164 0x1912010 INFO GST_ELEMENT_PADS gstutils.c:1698:gst_element_link_pads_full: trying to link element tsdemux:(any) to element mpeg2dec:(any)<br> 0:00:00.032735773 12164 0x1912010 INFO GST_ELEMENT_PADS gstelement.c:972:gst_element_get_static_pad: no such pad 'video_%04x' in element "tsdemux"<br> 0:00:00.032759563 12164 0x1912010 INFO GST_ELEMENT_PADS gstutils.c:1216:gst_element_get_compatible_pad:<tsdemux> Could not find a compatible pad to link to mpeg2dec:sink<br> </div> <div><br> </div> <div>here is the code I wrote :</div> <div><br> </div> <div>...</div> <div>source = gst_element_factory_make ("udpsrc", "rtpsrc");<br> rtpdepay = gst_element_factory_make ("rtpmp2tdepay", "rtpdepay");<br> tsdemux = gst_element_factory_make ("mpegtsdemux", "tsdemux");<br> sink = gst_element_factory_make ("filesink", "filesink");</div> <div><br> </div> <div>g_object_set (source, "port", 5000, NULL);<br> /* we need to set caps on the udpsrc for the RTP data */<br> caps = gst_caps_from_string ("application/x-rtp, media=video, encoding-name=MP2T-ES");<br> g_object_set (source, "caps", caps, NULL);<br> gst_caps_unref (caps);</div> <div><br> </div> g_object_set (sink, "location", "/tmp/video.mpeg", NULL);<br> <br> /* build pipeline */<br> gst_bin_add_many (GST_BIN (pipeline), source, rtpdepay, tsdemux, sink, NULL);<br> if(!gst_element_link_many (source, rtpdepay, tsdemux, sink, NULL))<br> {<br> g_printerr ("Could not link pipeline. \n");<br> return -1;<br> <div> }<br> </div> <div><br> </div> <div>when I execute the application, the call to gst_element_link_many fails and the program exit with my error msg.</div> <div><br> </div> <div>Do you know what might be wrong ?</div> <div><br> </div> <div>thanks,</div> <div>Max</div> <div><br> </div> <div><br> </div> -- <br> Maxime Louvel<br> web page : <a href="https://sites.google.com/site/mlouvel/" target="_blank">https://sites.google.com/site/mlouvel/</a><br> linkedin : <a href="http://fr.linkedin.com/in/mlouvel" target="_blank">http://fr.linkedin.com/in/mlouvel</a><br> <div>address : 5400-B ridge oak drive</div> <div> Austin, Texas, 78731</div> <div> USA</div> <br> <br> <br> </div></div><pre>_______________________________________________ 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><span class="HOEnZb"><font color="#888888"> </font></span></pre><span class="HOEnZb"><font color="#888888"> </font></span></blockquote><span class="HOEnZb"><font color="#888888"> <br> <br> <pre cols="72">-- -- Emile Semmes Owner / Software Consultant e6 Group, LLC Office: <a href="tel:%28630%29%20376-0626" value="+16303760626" target="_blank">(630) 376-0626</a> <a href="http://www.e6group.com" target="_blank">www.e6group.com</a></pre> </font></span></div> <br>_______________________________________________<br> gstreamer-devel mailing list<br> <a href="mailto:gstreamer-devel@lists.freedesktop.org">gstreamer-devel@lists.freedesktop.org</a><br> <a href="http://lists.freedesktop.org/mailman/listinfo/gstreamer-devel" target="_blank">http://lists.freedesktop.org/mailman/listinfo/gstreamer-devel</a><br> <br></blockquote></div><br><br clear="all"><br>-- <br>Maxime Louvel<br>web page : <a href="https://sites.google.com/site/mlouvel/" target="_blank">https://sites.google.com/site/mlouvel/</a><br>linkedin : <a href="http://fr.linkedin.com/in/mlouvel" target="_blank">http://fr.linkedin.com/in/mlouvel</a><br> <div>address : 5400-B ridge oak drive</div><div> Austin, Texas, 78731</div><div> USA</div><br>