Hi guys,<br clear="all"><br><div>I&#39;m trying to use gscam with the two embedded webcam I have on a N900 phone. I have sometimes troubles running gscam as it crashes with a nasty segmentation fault.</div><div><br></div><div>
In order to use gscam, I&#39;ve configured GSCAM_CONFIG=&quot;v4l2src device=/dev/video1 ! videoscale ! video/x-raw-yuv,width=320,height=240 ! identity name=ros ! ffmpegcolorspace ! jpegenc ! fakesink&quot;. Running &quot;gst-launch $GSCAM_CONFIG&quot; works as expected, no segfault. Running this pipeline using &quot;rosrun gscam gscam&quot; (in gscam/bin directory) produces erratic segfaults.</div>
<div><br></div><div>I&#39;ve tried to track down this error, and gscam fails in processData() at:</div><div><br></div><div>    memcpy(buffer,gBuffer-&gt;data,sizeof(unsigned char)*width*height*3);</div><div><br></div><div>
gBuffer-&gt;data appears to be 153600, while sizeof(unsigned char)*width*height*3 is 230400, thus troubles allocating memory ?</div><div><br></div><div>I can&#39;t find where the problem comes from... Shouldn&#39;t there be some sanity check with these buffer sizes ?</div>
<div><br></div><div>Using with this line seems to fix the consequence, but not the cause... (and images appears with a black rectangle, missing data)</div><div><br></div><div>    memcpy(buffer,gBuffer-&gt;data,GST_BUFFER_SIZE(gBuffer));</div>
<div><br></div><div><br></div><meta http-equiv="content-type" content="text/html; charset=utf-8"><div>I guess I have some problems with my pipeline definition... Any idea ? Is it because it&#39;s YUV and not RGB ? (webcam doesn&#39;t seem to support RGB with video/x-raw-rgb pipeline element).</div>
<div><br></div><div><br></div><div>Thanks</div><div>Cheers,</div><div>Seb</div><div><br></div>
<div><br>-- <br>Sébastien Lelong<br><a href="http://www.sirloon.net" target="_blank">http://www.sirloon.net</a><br><a href="http://sirbot.org" target="_blank">http://sirbot.org</a><br>
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