"use strict";var AACSession=function(){function a(a,b){var c=1,e=null,f=null;if("string"!=typeof d)return void debug.log("wrong type of config in SDP");e=parseInt(d.substring(0,2),16),f=parseInt(d.substring(2,4),16);var g=e>>3,h=(7&e)<<1|(128&f)>>7;i[0]=255,i[1]=249,i[2]=g-1<<6,i[2]|=h<<2,i[2]|=c>>2,i[3]=c<<6,i[3]|=(a+7&6144)>>11,i[4]=(a+7&2040)>>3,i[5]=(a+7&7)<<5,i[5]|=1,i[6]=84;var j=new Uint8Array(i.length+b.length);return j.set(i,0),j.set(b,i.length),j}function b(){this.firstTime=0,this.lastMSW=0}var c=7,d=null,e=null,f=null,g=null,h=0,i=new Uint8Array(c),j={seconds:null,useconds:null};return b.prototype={parseRTPData:function(b,c,d){var e=c[22];g=(c[21]<<8)+c[20];var f=c.length-8-(24+e),i=c.subarray(24+e,c.length-8),k=i.subarray(0,2),l={},m=(c[19]<<24)+(c[18]<<16)+(c[17]<<8)+c[16]>>>0,n=Date.UTC("20"+(m>>26),(m>>22&15)-1,m>>17&31,m>>12&31,m>>6&63,63&m)/1e3;if(n-=28800,0==this.firstTime)this.firstTime=n,this.lastMSW=0,h=(c[21]<<8)+c[20],j.seconds=n,j.useconds=0;else{var o,p=(c[21]<<8)+c[20];o=p>h?p-h:p+65535-h,this.lastMSW+=o,n>this.firstTime&&(this.lastMSW-=1e3),this.firstTime=n,j.seconds=n,j.useconds=this.lastMSW,h=p}if(255===k[0]&&240===(240&k[1]))l={codec:"AAC",bufferData:i,rtpTimeStamp:1e3*j.seconds+j.useconds},d===!0&&(l.streamData=i.subarray(7,i.length));else{var q=a(f,i);l={codec:"AAC",bufferData:q,rtpTimeStamp:1e3*j.seconds+j.useconds},d===!0&&(l.streamData=i)}return l},setCodecInfo:function(a){debug.log("Set codec info. for AAC"),d=a.config,f=a.bitrate,e=a.clockFreq},getCodecInfo:function(){return{bitrate:f,clockFreq:e}}},new b};