print("Ni hao") do local tap = Listener.new("ip", "rtp") local rtp_ssrc = Field.new("rtp.ssrc") local frame_time = Field.new("frame.time_relative") local rtp = Field.new("rtp") function tap.packet(pinfo, tvb, ip) local ip_src, ip_dst = tostring(ip.ip_src), tostring(ip.ip_dst) local rtp_data = rtp() local filename = "rtp_ssrc" .. rtp_ssrc() "_src_" .. ip_src .. "_to_" .. ip_dst .. ".state" local f = io.open(filename, "a") f:write(tostring(frame_time()) .. " ") f:write(tostring(rtp_data.value)) f:write("\n") f:close() end function tap.draw() print("DRAW") end function tap.reset() print("RESET") end end