diff --git a/main.cpp b/main.cpp index 2c3528d..fe4bb80 100644 --- a/main.cpp +++ b/main.cpp @@ -1291,51 +1291,51 @@ void print_help() strncpy(git_version_buf,gitversion,10); printf("UDPspeeder V2\n"); - printf("git version:%s ",git_version_buf); - printf("build date:%s %s\n",__DATE__,__TIME__); + printf("git version: %s ",git_version_buf); + printf("build date: %s %s\n",__DATE__,__TIME__); printf("repository: https://github.com/wangyu-/UDPspeeder\n"); printf("\n"); printf("usage:\n"); - printf(" run as client : ./this_program -c -l local_listen_ip:local_port -r server_ip:server_port [options]\n"); - printf(" run as server : ./this_program -s -l server_listen_ip:server_port -r remote_ip:remote_port [options]\n"); + printf(" run as client: ./this_program -c -l local_listen_ip:local_port -r server_ip:server_port [options]\n"); + printf(" run as server: ./this_program -s -l server_listen_ip:server_port -r remote_ip:remote_port [options]\n"); printf("\n"); - printf("common option,must be same on both sides:\n"); - printf(" -k,--key key for simple xor encryption. if not set,xor is disabled\n"); + printf("common options, must be same on both sides:\n"); + printf(" -k,--key key for simple xor encryption. if not set, xor is disabled\n"); printf("main options:\n"); - printf(" -f,--fec x:y forward error correction,send y redundant packets for every x packets\n"); - printf(" --timeout how long could a packet be held in queue before doing fec,unit: ms,default :8ms\n"); - printf(" --mode fec-mode,available values: 0,1 ; 0 cost less bandwidth,1 cost less latency(default)\n"); - printf(" --report turn on send/recv report,and set a period for reporting,unit:s\n"); + printf(" -f,--fec x:y forward error correction, send y redundant packets for every x packets\n"); + printf(" --timeout how long could a packet be held in queue before doing fec, unit: ms, default: 8ms\n"); + printf(" --mode fec-mode,available values: 0, 1; 0 cost less bandwidth, 1 cost less latency(default)\n"); + printf(" --report turn on send/recv report, and set a period for reporting, unit: s\n"); printf("advanced options:\n"); - printf(" --mtu mtu. for mode 0,the program will split packet to segment smaller than mtu_value.\n"); - printf(" for mode 1,no packet will be split,the program just check if the mtu is exceed.\n"); - printf(" default value:1250 \n"); - printf(" -j,--jitter simulated jitter.randomly delay first packet for 0~ ms,default value:0.\n"); + printf(" --mtu mtu. for mode 0, the program will split packet to segment smaller than mtu_value.\n"); + printf(" for mode 1, no packet will be split, the program just check if the mtu is exceed.\n"); + printf(" default value: 1250\n"); + printf(" -j,--jitter simulated jitter. randomly delay first packet for 0~ ms, default value: 0.\n"); printf(" do not use if you dont know what it means.\n"); - printf(" -i,--interval scatter each fec group to a interval of ms,to protect burst packet loss.\n"); - printf(" default value:0.do not use if you dont know what it means.\n"); - printf(" --random-drop simulate packet loss ,unit:0.01%%. default value: 0\n"); - printf(" --disable-obscure disable obscure,to save a bit bandwidth and cpu\n"); + printf(" -i,--interval scatter each fec group to a interval of ms, to protect burst packet loss.\n"); + printf(" default value: 0. do not use if you dont know what it means.\n"); + printf(" --random-drop simulate packet loss, unit: 0.01%%. default value: 0\n"); + printf(" --disable-obscure disable obscure, to save a bit bandwidth and cpu\n"); // printf(" --disable-xor disable xor\n"); printf("developer options:\n"); - printf(" --fifo use a fifo(named pipe) for sending commands to the running program,so that you\n"); - printf(" can change fec encode parameters dynamically,check readme.md in repository for\n"); + printf(" --fifo use a fifo(named pipe) for sending commands to the running program, so that you\n"); + printf(" can change fec encode parameters dynamically, check readme.md in repository for\n"); printf(" supported commands.\n"); - printf(" -j ,--jitter jmin:jmax similiar to -j above,but create jitter randomly between jmin and jmax\n"); - printf(" -i,--interval imin:imax similiar to -i above,but scatter randomly between imin and imax\n"); - printf(" -q,--queue-len max fec queue len,only for mode 0\n"); - printf(" --decode-buf size of buffer of fec decoder,unit:packet,default:2000\n"); - printf(" --fix-latency try to stabilize latency,only for mode 0\n"); + printf(" -j ,--jitter jmin:jmax similiar to -j above, but create jitter randomly between jmin and jmax\n"); + printf(" -i,--interval imin:imax similiar to -i above, but scatter randomly between imin and imax\n"); + printf(" -q,--queue-len max fec queue len, only for mode 0\n"); + printf(" --decode-buf size of buffer of fec decoder,u nit: packet, default: 2000\n"); + printf(" --fix-latency try to stabilize latency, only for mode 0\n"); printf(" --delay-capacity max number of delayed packets\n"); - printf(" --disable-fec completely disable fec,turn the program into a normal udp tunnel\n"); - printf(" --sock-buf buf size for socket,>=10 and <=10240,unit:kbyte,default:1024\n"); + printf(" --disable-fec completely disable fec, turn the program into a normal udp tunnel\n"); + printf(" --sock-buf buf size for socket, >=10 and <=10240, unit: kbyte, default: 1024\n"); printf("log and help options:\n"); - printf(" --log-level 0:never 1:fatal 2:error 3:warn \n"); - printf(" 4:info (default) 5:debug 6:trace\n"); - printf(" --log-position enable file name,function name,line number in log\n"); + printf(" --log-level 0: never 1: fatal 2: error 3: warn \n"); + printf(" 4: info (default) 5: debug 6: trace\n"); + printf(" --log-position enable file name, function name, line number in log\n"); printf(" --disable-color disable log color\n"); printf(" -h,--help print this help message\n");