I think you are missing parser element before decode bin .Just add h264parser before decode bin and it should get linked and work out.<br><br><div class="gmail_quote">On Wed, Jan 18, 2012 at 2:13 AM, user1890246781234 <span dir="ltr">&lt;<a href="mailto:litmus4inanity@gmail.com">litmus4inanity@gmail.com</a>&gt;</span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0pt 0pt 0pt 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">I&#39;m looking to get a sanity check on my pipeline syntax for extracting a<br>
video file from a wireshark pcap containing rtp/udp for the video.<br>
<br>
Here is the command I&#39;m using and the error I&#39;m receiving.<br>
<br>
<br>
$ gst-launch filesrc location=udponly.pcap ! pcapparse !<br>
application/x-rtp,media=video,clock-rate=90000,payload=123,encoding-name=H264<br>
! rtph264depay ! decodebin ! autovideosink      Setting pipeline to PAUSED<br>
...<br>
Pipeline is PREROLLING ...<br>
ERROR: from element /GstPipeline:pipeline0/GstFileSrc:filesrc0: Internal<br>
data flow error.<br>
Additional debug info:<br>
..\..\..\Source\gstreamer\libs\gst\base\gstbasesrc.c(2507):<br>
gst_base_src_loop (): /GstPipeline:pipeline0/GstFileSrc:filesrc0:<br>
streaming task paused, reason not-negotiated (-4)<br>
ERROR: pipeline doesn&#39;t want to preroll.<br>
Setting pipeline to NULL ...<br>
Freeing pipeline ...<br>
<font color="#888888"><br>
<br>
<br>
--<br>
View this message in context: <a href="http://gstreamer-devel.966125.n4.nabble.com/Pipeline-syntax-for-decoding-h264-video-from-pcap-containing-RTP-UDP-tp4304658p4304658.html" target="_blank">http://gstreamer-devel.966125.n4.nabble.com/Pipeline-syntax-for-decoding-h264-video-from-pcap-containing-RTP-UDP-tp4304658p4304658.html</a><br>

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</font></blockquote></div><br>