here please
Code:
rtmpdump -v -r "rtmpe://s3.telewebion.com:1935/vod-secure" -a "vod-secure?wmsAuthSign=aXNfZnJlZT0xJnNlcnZlcl90aW1lPTMvMjcvMjAxNCAxMjo1MTo0MSBQTSZoYXNoX3ZhbHVlPWVQV2pWZ2JzdnF5dlZXanY0MnFwZ1E9PSZ2YWxpZG1pbnV0ZXM9MTAw" -f "WIN 12,0,0,77" -W "http://www.telewebion.com/jwplayer_pro/68/jwplayer.flash.swf" -p "http://www.telewebion.com/fa/episode/info/1135360/" -y "mp4:/media3/telewebion/tv4/2014-03-23/normalProgram/2157/file.mp4" -o "output.flv"