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</o:shapelayout></xml><![endif]--></head><body lang=EN-US link=blue vlink=purple><div class=WordSection1><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Bernhard, hello<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>I believe most teams use Ubuntu (we’re using version 10.10). Try to set your camera to RAW8 mode, and make sure the 2 cameras are not on the same bus<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Also, from your camera’s datasheet, it seems you can only get 53 fps even in RAW8:<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Marlin F046 datasheet: Frame rates: Up to 53 Hz in Format_7; up to 53 Hz in Format_7 Raw8; 36 Hz(YUV 4:2:2); 49 Hz (YUV 4:1:1); 21 Hz (RGB8)<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>An approximate math on the bandwidth required is camera’s h_resolution X v_resolution X bits_per_packet X fps<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>bits_per_packet for RAW8 = 8 bits and for YUV422 = 16 (or was it some variable number….? But larger than 8 for sure) <o:p></o:p></span></p><p class=MsoNormal style='margin-left:.5in;text-indent:.5in'><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>** I believe you also need to increase your result by +/- 20% to account for the headers and comm. Control.<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Cheers<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Angelo<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in 0in 0in'><p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>From:</span></b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'> robocup-small-bounces@cc.gatech.edu [mailto:robocup-small-bounces@cc.gatech.edu] <b>On Behalf Of </b>Bernhard Perun<br><b>Sent:</b> Wednesday, April 06, 2011 11:32 AM<br><b>To:</b> robocup-small@cc.gatech.edu<br><b>Subject:</b> [robocup-small] problems with SSL Vision :/<o:p></o:p></span></p></div><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal style='margin-bottom:12.0pt'>Hey guys,<br><br>at the moment we want to configure our two AVT Marlin F046C cams in SSL Vision, so that we can use them with the highest framerate possible.<br><br>Unfortunatelly we're experiencing a lot of problems letting SSL Vision run with these two cams.<br><br>Our settings:<br>- OS: Debian 6.0<br>- SSL-Vision mode: YUV422<br>- One Delock Express Card - 34 Firewire card (notebook) / One WinTech Controller Card (VIA 6306 Chipset) (desktop pc)<br><br>The SSL-Vision errors we've got:<br>1. The unpatched version of SSL Vision is running with one cam only (max 25 frames). If we want to start the second one, we will get the error: Could not allocate ISO channel (should be a known issue)<br>2. With a patched version (divide the bandwidth by two) of SSL Vision our two cams are working with only max. 18 frames each.<br><br>Do you have any experience with these kind of problems or can you answer these questions, please:<br><br>- What kind of Linux/libdc1394 do you use?<br>- Which SSL-Vision settings (Raw8, YUV422, ...) do you use?<br>- What kind of firewire card do you use and how many cams per card (one or two)?<br>- Do you have any clues to get SSL Vision running successfully?<br><br>Thank you very much for your help!<br><br>Regards,<br><br><b>Bernhard Perun</b><br>Project leader "Tigers Mannheim"<br>Cooperative State University Baden-Wuerttemberg<br>Coblitzallee 1-9<br>68163 Mannheim<br>E-Mail: <a href="mailto:bernhard.perun@googlemail.com">bernhard.perun@googlemail.com</a><br>Internet: <a href="http://www.tigers-mannheim.de">www.tigers-mannheim.de</a><o:p></o:p></p></div></body></html>