<div><div dir="auto">Wow, thanks for your advice. I made a stupid mistake.</div><br><div class="gmail_quote"><div>On Tue, 22 Aug 2017 at 23:02 Tim Müller <<a href="mailto:tim@centricular.com">tim@centricular.com</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">On Tue, 2017-08-22 at 22:42 +0800, Li Ma wrote:<br>
<br>
Hi,<br>
<br>
> 0:00:18.430167627 15948 0000020437164000 DEBUG               GST_CAPS<br>
> gstpad.c:2304:gst_pad_link_check_hierarchy: pads have different<br>
> grandparents (NULL) and <cameraStreamOut><br>
><br>
> 0:00:18.430455363 15948 0000020437164000 INFO                GST_PADS<br>
> gstpad.c:2365:gst_pad_link_prepare: pads have wrong hierarchy<br>
<br>
You need to add udpsrc to the pipeline in which the rtpbin is before<br>
linking both.<br>
<br>
Cheers<br>
 -Tim<br>
<br>
--<br>
Tim Müller, Centricular Ltd - <a href="http://www.centricular.com" rel="noreferrer" target="_blank">http://www.centricular.com</a><br>
<br>
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</blockquote></div></div><div dir="ltr">-- <br></div><div class="gmail_signature" data-smartmail="gmail_signature"><br>Li Ma (Nick)<br>Email: <a href="mailto:skywalker.nick@gmail.com" target="_blank">skywalker.nick@gmail.com</a></div>