<div dir="ltr">Hi,<div><br></div><div>I'm looking for a solution for the following problem:</div><div><br></div><div>from a single source, I collect a random number of buffers until a certain </div><div>rule has been met. I only want to output a buffer afterwards. What kind of element</div><div>do I need to create ?  I guess a transform element ? </div><div>Can I prevent a transform element to output a buffer ?</div><div><br></div><div>Thanks for your help,</div><div><br></div><div><br clear="all"><div><div dir="ltr" class="gmail_signature" data-smartmail="gmail_signature"><div dir="ltr"><table border="0" cellspacing="0" cellpadding="0" style="font-family:Roboto,RobotoDraft,Helvetica,Arial,sans-serif;border-collapse:collapse;border:none"><tbody><tr><td width="78" valign="top" style="width:58.5pt;padding:0in"><p style="margin-top:0px;margin-bottom:0.0001pt;line-height:normal"><img src="https://spectricity.com/wp-content/uploads/2020/11/logo_spectricity.png" width="73" height="96"></p></td><td width="545" valign="top" style="width:409pt;padding:0in"><p style="margin-top:0px;margin-bottom:0.0001pt;line-height:normal"><b><font face="arial, helvetica, sans-serif"><br></font></b></p><p style="margin-top:0px;margin-bottom:0.0001pt;line-height:normal"><b><font face="arial, helvetica, sans-serif"> Koen Brants</font></b></p><p style="margin-top:0px;margin-bottom:0.0001pt;line-height:normal"><span style="color:rgb(91,155,213)"><font face="arial, helvetica, sans-serif"> Sr. Software Engineer</font></span></p><p style="margin-top:0px;margin-bottom:0.0001pt;line-height:normal"><span lang="NL-BE"><font size="1"><font face="arial, helvetica, sans-serif"> Spectricity | </font> </font></span><span style="font-family:arial,helvetica,sans-serif;font-size:x-small"> </span> <a href="http://www.spectricity.com/" style="font-family:arial,helvetica,sans-serif;font-size:x-small" target="_blank">www.spectricity.com</a> <span style="font-family:arial,helvetica,sans-serif;font-size:x-small"> </span></p><p style="margin-top:0px;margin-bottom:0.0001pt;line-height:normal"><span lang="NL-BE"><font size="1"><font face="arial, helvetica, sans-serif"> Stationsstraat 55 | B-2800 Mechelen | Belgium</font></font></span></p></td></tr></tbody></table></div></div></div></div></div>