% ClassName GstVideoSink % TYPE_CLASS_NAME GST_TYPE_VIDEO_SINK % pkg-config gstreamer-video-0.10 % includes #include % prototypes static GstFlowReturn gst_replace_show_frame (GstVideoSink * video_sink, GstBuffer * buf); % declare-class GstVideoSinkClass *video_sink_class = GST_VIDEO_SINK_CLASS (klass); % set-methods video_sink_class->show_frame = GST_DEBUG_FUNCPTR (gst_replace_show_frame); % methods static GstFlowReturn gst_replace_show_frame (GstVideoSink * video_sink, GstBuffer * buf) { return GST_FLOW_OK; } % end