>cd ur_dir
>make

./ur [ACTION] [OPTION]

--catch,-c      抓取指定组播/单播流，将其保存成cap文件或ts文件(可边抓边分析丢包).
--send,-s       将cap文件数据发往指定组播/单播地址和端口.
--convert,-n    将cap文件转成ts文件(可边转边分析丢包).
--analyze,-a    分析指定文件(cap,ts)或指定组播/单播流是否存在RTP丢包和TS丢包.
--print-ip,-p   指定组播地址，获取其对应的源IP地址和端口(发出组播的主机的IP地址和端口).
--transfer,-S   组播/单播转发到新的组播/单播地址(支持指定丢包率).	

--inputfile,-i    filepath            发包、cap转ts、分析丢包时需要的输入文件路径
--multicast,-m    ip:port             抓包、分析组播流丢包时需要指定的组播/单播地址和端口
--out2cap,-o      output_file_path    进行抓cap包时的输出文件路径
--out2ts,-t       output_file_path    抓mpg包、cap转ts时的输出文件路径
--losslog,-l      loss_logfile_path   进行丢包分析，并将丢包信息写入丢包日志
--offset,-f       offset              设定数据的偏移位置(一般设定为RTP头的长度,如'convert'时,cap文件带RTP头,且长度为24,则-f 24)
--device,-d       nic_name            指定抓包和分析组播流丢包时的网卡设备(如eth0, eth1, bond0)
--timer,-T        minute              设置定时抓包的时间，单位：分钟(默认为0,表示不限时间)
--newaddress,-w   new_ip:new_port     新的组播或单播地址
--lossrate,-R     pkt_loss_rate       丢包率百分比，默认0%，取值范围为0-100
--interval,-I     pkt_interval        最大包间隔, 用于最大包间隔检查, 单位: us(1s = 1000ms = 1000000us).

--repeat,-r                           循环发送cap文件
--background,-b                       ur在后台运行

--version,-v                          获取版本信息
--help,-h                             显示帮助

>cd ur_dir
>make

./ur [ACTION] [OPTION]

--catch,-c      Capture a stream as a cap file or ts file.
--send,-s       Send the cap file to multicast/unicast address.
--convert,-n    Convert cap file to ts stream file.
--analyze,-a    Analyze a cap file or ts file or a stream exist packet loss or not.
--print-ip,-p   Get the source ip and port of multicast address.
--transfer,-S   Transfer a udp stream from multicast/unicast address to another address.

--inputfile,-i    filepath            Input file for 'send' or 'convert' or 'analyze'
--multicast,-m    ip:port             Multicast/unicast address and port supply to 'catch' or 'analyze'
--out2cap,-o      output_file_path    The cap file 'catch' to save to
--out2ts,-t       output_file_path    The ts file 'catch' or 'convert' to save to
--losslog,-l      loss_logfile_path   The logfile of packet loss info
--offset,-f       offset              Assigned the offset for 'catch', 'send', 'convert' or 'analyze'
--device,-d       nic_name            The device used for capture (e.g. eth0, eth1, bond0)
--timer,-T        minute              Set the 'catch' time('0' indicates no time limit)
--newaddress,-w   new_ip:new_port     New address and port supply to 'transfer'
--lossrate,-R     pkt_loss_rate       Packet loss rate, default is 0%, the value range is 0 to 5.
--interval,-I     pkt_interval        Max packet interval check, unit: us(1s = 1000ms = 1000000us).

--repeat,-r                           Repeat to play the cap file
--background,-b                       Run the programe in background

--version,-v                          Get version of this program
--help,-h                             Print usage of this program