Function gstreamer_rtp_sys::gst_rtcp_packet_xr_get_summary_ttl

pub unsafe extern "C" fn gst_rtcp_packet_xr_get_summary_ttl(
    packet: *mut GstRTCPPacket, 
    is_ipv4: *mut gboolean, 
    min_ttl: *mut u8, 
    max_ttl: *mut u8, 
    mean_ttl: *mut u8, 
    dev_ttl: *mut u8
) -> gboolean

This is supported on crate feature v1_16 only.