Function gstreamer_mpegts_sys::gst_mpegts_descriptor_from_custom_with_extension

pub unsafe extern "C" fn gst_mpegts_descriptor_from_custom_with_extension(
    tag: u8, 
    tag_extension: u8, 
    data: *const u8, 
    length: size_t
) -> *mut GstMpegtsDescriptor

This is supported on crate feature v1_20 only.