<html><head></head><body><div style="font-family: Verdana;font-size: 12.0px;"><div>Sure, it is the qtdemuxer and I'm using it for an mp4 file
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<div style="margin:0 0 10px 0;"><b>Gesendet:</b> Mittwoch, 26. Juni 2013 um 21:17 Uhr<br/>
<b>Von:</b> "Tim-Philipp Müller" <t.i.m@zen.co.uk><br/>
<b>An:</b> gstreamer-devel@lists.freedesktop.org<br/>
<b>Betreff:</b> Re: link demux</div>
<div name="quoted-content">On Wed, 2013-06-26 at 20:52 +0200, "Simon Krütt" wrote:<br/>
<br/>
Hi,<br/>
<br/>
> can someone help me please to link my demuxer to another element.<br/>
> so far I tried to link the pads like this:<br/>
><br/>
> gst_bin_add_many (GST_BIN (pipeline), videosrc, demux, queue,<br/>
> videoenc, rtppayload,<br/>
> NULL);<br/>
> sinkpad = gst_element_get_request_pad ( queue, "queue_sink");<br/>
> srcpad = gst_element_get_static_pad (demux, "src");<br/>
> if (gst_pad_link (srcpad, sinkpad) != GST_PAD_LINK_OK)<br/>
> g_error ("Failed to link video queue to demux");<br/>
> gst_object_unref (srcpad);<br/>
><br/>
><br/>
> and I'm getting this error:<br/>
><br/>
> (mp4test:32152): GStreamer-CRITICAL **: gst_pad_link_full: assertion<br/>
> `GST_IS_PAD (srcpad)' failed<br/>
> ** (mp4test:32152): ERROR **: Failed to link video queue to demux<br/>
> Trace/breakpoint trap (core dumped)<br/>
<br/>
It would be nice if you told us what demuxer this is exactly!<br/>
<br/>
I think you need to read up on 'dynamic pads' - most demuxers have<br/>
dynamic source pads which will only be created once data flow has<br/>
started:<br/>
<br/>
<a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/manual/html/chapter-pads.html#section-pads" target="_blank">http://gstreamer.freedesktop.org/data/doc/gstreamer/head/manual/html/chapter-pads.html#section-pads</a><br/>
<br/>
Cheers<br/>
-Tim<br/>
<br/>
<br/>
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