<!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 jeudi 06 juin 2013 à 08:30 -0700, Baby Octopus a écrit : <BLOCKQUOTE TYPE=CITE> I have doubt on the video chroma formats that most of the plugins support, ex deinterlacer. How is it made possible? Do these elements internally call videoconvert plugin? </BLOCKQUOTE> It's not because caps are exposed through src/sink template that it can convert. For most element you can choose the input format and then the element will force an output format. Nicolas </BODY> </HTML>