Mine

#include <gst/gst.h>#include <glib.h>intmain (int   argc,      char *argv[]){    gst_init (&argc, &argv);    GstElementFactory* colorspacefactory = gst_element_factory_find ("ffmpegcolorspace");    if (!colorspacefactory) {        return 1;    }    GstCaps* caps = gst_caps_new_simple("video/x-raw-yuv", NULL);        gboolean ok = gst_element_factory_can_src_caps (colorspacefactory, caps);    g_assert(ok);        gst_caps_unref(caps);    gst_object_unref(colorspacefactory);        return 0;}