Function gst_ toc_ entry_ append_ sub_ entry 
Source pub unsafe extern "C" fn gst_toc_entry_append_sub_entry(
    entry: *mut GstTocEntry,
    subentry: *mut GstTocEntry,
)pub unsafe extern "C" fn gst_toc_entry_append_sub_entry(
    entry: *mut GstTocEntry,
    subentry: *mut GstTocEntry,
)