<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 TRANSITIONAL//EN"> <HTML> <HEAD> <META HTTP-EQUIV="Content-Type" CONTENT="text/html; CHARSET=UTF-8"> <META NAME="GENERATOR" CONTENT="GtkHTML/4.6.4"> </HEAD> <BODY> Le vendredi 28 juin 2013 à 12:50 -0400, Josh Doe a écrit : <BLOCKQUOTE TYPE=CITE> All I have to do is comment out the new-sample signal connection, or set emit-signals to FALSE, and appsink no longer blocks. </BLOCKQUOTE> I'd check the return valu of your callback, return type is GstFlowReturn. That would be my first guess. Nicolas </BODY> </HTML>