<div dir="ltr">I was looking at the resizing of the GstBuffers that v4l2src does today...</div><div class="gmail_extra"><br><br><div class="gmail_quote">On Tue, Jul 23, 2013 at 5:46 PM, Peter Rennert <span dir="ltr"><<a href="mailto:p.rennert@cs.ucl.ac.uk" target="_blank">p.rennert@cs.ucl.ac.uk</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div>I tried today to have another look at the issue. I sent an email to Youness (the developer of the 0.10 version) and he came back to me yesterday, saying that neither he nor the person who ported it to 1.0 has a camera to test. So the problem will not get fixed "automatically". But he thinks that there is an issue with the negotiation. And it should not be a big deal. I have no idea how Gstreamer works internally, but I would like to give it a shot. <br>
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I was also thinking about reasons why it always and consistently fails after 35sec. I have the suspicion that the camera sends at that time a keyframe. And that crashes the pipeline somehow. That might also be something that is different to MJPEG encoding which probably does not fail.<br>
<br>
I tried to confirm this, but I had problems to make uvch264src running in my (python) pipeline that I wanted to use for this simple testing. I will come back to this tomorrow. Stay tuned.<br><br><div class="gmail_quote">
krakorar <<a href="mailto:rob.krakora@messagenetsystems.com" target="_blank">rob.krakora@messagenetsystems.com</a>> wrote:<blockquote class="gmail_quote" style="margin:0pt 0pt 0pt 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">
<pre><div class="im">Oops...had a type-o in the gst-launch-1.0 line...it still streams for about<br>35 seconds and then this happens:<br><br>ERROR: from element<br>/GstPipeline:pipeline0/GstUvcH264Src:src/GstUvcH264MjpgDemux:uvch264mjpgdemux0:<br>
Not enough data to read marker content<br>Additional debug info:<br>gstuvch264_mjpgdemux.c(507): gst_uvc_h264_mjpg_demux_chain ():<br>/GstPipeline:pipeline0/GstUvcH264Src:src/GstUvcH264MjpgDemux:uvch264mjpgdemux0<br><br><br>
<br>--<br>View this message in context: <a href="http://gstreamer-devel.966125.n4.nabble.com/uvch264src-in-1-1-1-1-Got-data-flow-before-segment-event-warnings-until-crash-tp4660982p4661224.html" target="_blank">http://gstreamer-devel.966125.n4.nabble.com/uvch264src-in-1-1-1-1-Got-data-flow-before-segment-event-warnings-until-crash-tp4660982p4661224.html</a><br>
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<br></blockquote></div><br><br clear="all"><div><br></div>-- <br><font color="#888888"><font color="blue">Rob Krakora<br>
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