Function gstreamer_rtp_sys::gst_rtcp_packet_xr_get_summary_pkt

pub unsafe extern "C" fn gst_rtcp_packet_xr_get_summary_pkt(
    packet: *mut GstRTCPPacket, 
    lost_packets: *mut u32, 
    dup_packets: *mut u32
) -> gboolean

This is supported on crate feature v1_16 only.