Function gstreamer_rtp_sys::gst_rtcp_packet_get_profile_specific_ext

pub unsafe extern "C" fn gst_rtcp_packet_get_profile_specific_ext(
    packet: *mut GstRTCPPacket, 
    data: *mut *mut u8, 
    len: *mut c_uint
) -> gboolean

This is supported on crate feature v1_10 only.