COLOR_ELEM        577 modules/videoio/src/cap_gstreamer.cpp         filename = "v4lsrc ! " COLOR_ELEM " ! appsink";
COLOR_ELEM        585 modules/videoio/src/cap_gstreamer.cpp         filename = "v4l2src ! " COLOR_ELEM " ! appsink";
COLOR_ELEM        713 modules/videoio/src/cap_gstreamer.cpp         color = gst_element_factory_make(COLOR_ELEM, NULL);