jquery - how to increase recording time duration in recordRTC -

i want increase time duration record canvas , send server ,for write code shown in below not shows error neither create video. using recordrtc jquery plugin.

var canvas = document.getelementbyid('can');     var recorder = recordrtc(canvas, {         type: 'canvas'     });     recorder.startrecording();     var stop = false;     (function looper() {         if (stop) {             var fiveminutes = 5 * 1000 * 60; * recorder.setrecordingduration(fiveminutes, function () {                 console.log(recorder);                 var blob = recorder.getblob();                 var reader = new window.filereader();                 reader.readasdataurl(blob);                 reader.onloadend = function () {                     base64data = reader.result;                     //console.log(base64data);                     var basecode = {                         "webemvideo": base64data                     };                     document.getelementbyid("viddata").value = base64data;                     var templateid = $("#templateid").val();                     var pstdata = $("#viddata").val();                     var music_name = $("#music_file_final").val();                     $.post(baseurl + 'create_video', {                         music_name: music_name                         , templateid: templateid                         , webemvideo: pstdata                     , }, function (data, status) {                         var objdata = $.parsejson(data);                         //console.log(data);                         //console.log(objdata.status);                         if (objdata.status == "success") {                             $(location).attr('href', baseurl + 'playground-step-3/' + objdata.video_created);                         }                         else {                             alert("try again")                         }                     });                 }             });             return;         }         settimeout(looper, 100);     })();     var seconds = 10;     var interval = setinterval(function () {         seconds--;         if (document.queryselector('h1')) {             document.queryselector('h1').innerhtml = seconds + ' seconds remaining.';         }     }, 1000);     settimeout(function () {         cleartimeout(interval);         stop = true;     }, seconds * 1000); }