sink = gst_element_factory_make("filesink","nvvideo-renderer")
g_object_set (G_OBJECT (sink), "sync", TRUE,"output-file",<filepath>);
I get the following error:
GLib-GObject-WARNING **: g_object_set_is_valid_property: object class 'GstFileSink' has no property named 'output-file'
ERROR from element nvvideo-renderer: No file name specified for writing