Function gst_ byte_ reader_ get_ sub_ reader 
Source pub unsafe extern "C" fn gst_byte_reader_get_sub_reader(
    reader: *mut GstByteReader,
    sub_reader: *mut GstByteReader,
    size: c_uint,
) -> gbooleanpub unsafe extern "C" fn gst_byte_reader_get_sub_reader(
    reader: *mut GstByteReader,
    sub_reader: *mut GstByteReader,
    size: c_uint,
) -> gboolean