Have you looked at videocrop or videobox? I'm not quite sure what you're trying to do. https://gstreamer.freedesktop.org/documentation/videocrop/videocrop.html?gi-language=c https://gstreamer.freedesktop.org/documentation/videobox/index.html?gi-language=c -- Sent from: http://gstreamer-devel.966125.n4.nabble.com/