Function gst_ harness_ add_ src_ parse 
Source pub unsafe extern "C" fn gst_harness_add_src_parse(
    h: *mut GstHarness,
    launchline: *const c_char,
    has_clock_wait: gboolean,
)pub unsafe extern "C" fn gst_harness_add_src_parse(
    h: *mut GstHarness,
    launchline: *const c_char,
    has_clock_wait: gboolean,
)