1159cl/lib/icecast-metadata-player-1.17.3.main.min.js

/*! For license information please see icecast-metadata-player-1.17.3.main.min.js.LICENSE.txt */

/*! 
 * Copyright 2021-2023 Ethan Halsall
 * https://github.com/eshaz/icecast-metadata-js
 *
 * This file is part of icecast-metadata-player.
 *
 * icecast-metadata-player free software: you can redistribute it and/or modify
 * it under the terms of the GNU Lesser General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * icecast-metadata-player distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with this program.  If not, see <https://www.gnu.org/licenses/>
 */
var IcecastMetadataPlayer;(()=>{"use strict";var t,s,i,e={317:(t,s,i)=>{i.d(s,{fp:()=>re,HQ:()=>ne,p:()=>ae,Ay:()=>he,wx:()=>oe,we:()=>ce,cJ:()=>de,Er:()=>ue,$:()=>le});const e=Symbol,h=(()=>{const t="left",s="center",i="right";return["","front ","side ","rear "].map((e=>[[t,i],[t,i,s],[t,s,i],[s,t,i],[s]].flatMap((t=>t.map((t=>e+t)).join(", ")))))})(),r="LFE",n="monophonic (mono)",a="stereo",o="surround",c=(t,...s)=>`${[n,a,`linear ${o}`,"quadraphonic",`5.0 ${o}`,`5.1 ${o}`,`6.1 ${o}`,`7.1 ${o}`][t-1]} (${s.join(", ")})`,u=[n,c(2,h[0][0]),c(3,h[0][2]),c(4,h[1][0],h[3][0]),c(5,h[1][2],h[3][0]),c(6,h[1][2],h[3][0],r),c(7,h[1][2],h[2][0],h[3][4],r),c(8,h[1][2],h[2][0],h[3][0],r)],l=48e3,d=44100,y=32e3,f=24e3,m=22050,p=16e3,w=8e3,g="absoluteGranulePosition",b="bandwidth",S="bitDepth",q="bitrate",M=q+"Maximum",A=q+"Minimum",v=q+"Nominal",P="buffer",E=P+"Fullness",_="codec",T=_+"Frames",C="coupledStreamCount",I="crc",R=I+"16",x=I+"32",$="data",k="description",O="duration",D="emphasis",B="hasOpusPadding",L="header",U="isContinuedPacket",F="isCopyrighted",N="isFirstPage",j="isHome",W="isLastPage",G="isOriginal",H="isPrivate",Q="isVbr",V="layer",Y="length",z="mode",K=z+"Extension",J="mpeg",Z=J+"Version",X="numberAACFrames",tt="outputGain",st="preSkip",it="profile",et=e(),ht="protection",rt="rawData",nt="segments",at="subarray",ot="version",ct="vorbis",ut=ct+"Comments",lt=ct+"Setup",dt="block",yt=dt+"ingStrategy",ft=e(),mt=dt+"Size",pt=dt+"size0",wt=dt+"size1",gt=e(),bt="channel",St=bt+"MappingFamily",qt=bt+"MappingTable",Mt=bt+"Mode",At=e(),vt=bt+"s",Pt="copyright",Et=Pt+"Id",_t=Pt+"IdStart",Tt="frame",Ct=Tt+"Count",It=Tt+"Length",Rt="Number",xt=Tt+Rt,$t=Tt+"Padding",kt=Tt+"Size",Ot="Rate",Dt="inputSample"+Ot,Bt="page",Lt=Bt+"Checksum",Ut=e(),Ft=Bt+"SegmentTable",Nt=Bt+"Sequence"+Rt,jt="sample",Wt=jt+Rt,Gt=jt+Ot,Ht=e(),Qt=jt+"s",Vt="stream",Yt=Vt+"Count",zt=Vt+"Info",Kt=Vt+"Serial"+Rt,Jt=Vt+"StructureVersion",Zt="total",Xt=Zt+"BytesOut",ts=Zt+"Duration",ss=Zt+"Samples",is=e(),es=e(),hs=e(),rs=e(),ns=e(),as=e(),os=e(),cs=e(),us=e(),ls=e(),ds=e(),ys=e(),fs=e(),ms=e(),ps=e(),ws=e(),gs=e(),bs=e(),Ss=Uint8Array,qs=DataView,Ms="reserved",As="bad",vs="free",Ps="none",Es="16bit CRC",_s=(t,s,i)=>{for(let e=0;e<t[Y];e++){let h=s(e);for(let t=8;t>0;t--)h=i(h);t[e]=h}return t},Ts=_s(new Ss(256),(t=>t),(t=>128&t?7^t<<1:t<<1)),Cs=[_s(new Uint16Array(256),(t=>t<<8),(t=>t<<1^(32768&t?32773:0)))],Is=[_s(new Uint32Array(256),(t=>t),(t=>t>>>1^3988292384*(1&t)))];for(let t=0;t<15;t++){Cs.push(new Uint16Array(256)),Is.push(new Uint32Array(256));for(let s=0;s<=255;s++)Cs[t+1][s]=Cs[0][Cs[t][s]>>>8]^Cs[t][s]<<8,Is[t+1][s]=Is[t][s]>>>8^Is[0][255&Is[t][s]]}const Rs=t=>{const s=t[Y],i=s-16;let e=0,h=0;for(;h<=i;)e=Is[15][255&(t[h++]^e)]^Is[14][255&(t[h++]^e>>>8)]^Is[13][255&(t[h++]^e>>>16)]^Is[12][t[h++]^e>>>24]^Is[11][t[h++]]^Is[10][t[h++]]^Is[9][t[h++]]^Is[8][t[h++]]^Is[7][t[h++]]^Is[6][t[h++]]^Is[5][t[h++]]^Is[4][t[h++]]^Is[3][t[h++]]^Is[2][t[h++]]^Is[1][t[h++]]^Is[0][t[h++]];for(;h!==s;)e=Is[0][255&(e^t[h++])]^e>>>8;return~e},xs=(...t)=>{const s=new Ss(t.reduce(((t,s)=>t+s[Y]),0));return t.reduce(((t,i)=>(s.set(i,t),t+i[Y])),0),s},$s=t=>String.fromCharCode(...t),ks=[0,8,4,12,2,10,6,14,1,9,5,13,3,11,7,15],Os=t=>ks[15&t]<<4|ks[t>>4];class Ds{constructor(t){this.t=t,this.i=8*t[Y]}set position(t){this.i=t}get position(){return this.i}read(t){const s=Math.floor(this.i/8),i=this.i%8;this.i-=t;return(Os(this.t[s-1])<<8)+Os(this.t[s])>>7-i&255}}class Bs{constructor(t,s){this.h=t,this.S=s,this[ps]()}[ws](){this.q=!0}[ps](){this.M=new Map,this.A=new WeakMap,this.v=!1,this.P=!1,this._=null,this.q=!1}[ms](t,s){if(this.S){this._!==t&&(this._=t,this.P=!0);const i=this.A.get(this.M.get(this.T));this.P&&i&&this.S({bitrate:t,...i},s),this.P=!1}}[us](t){const s=this.M.get(t);return s&&this.C(t),s}[ls](t,s,i){this.q&&(this.v||(this.h({...s}),this.v=!0),this.C(t),this.M.set(t,s),this.A.set(s,i))}C(t){this.S&&t!==this.T&&(this.P=!0,this.T=t)}}const Ls=new WeakMap,Us=new WeakMap;class Fs{constructor(t,s){this.I=t,this.M=s}*[os](){let t;for(;;){if(t=yield*this.Frame[ds](this.I,this.M,0),t)return t;this.I[es](1)}}*[cs](t){let s=yield*this[os]();const i=Us.get(s)[Y];if(t||this.I.R||(yield*this.Header[us](this.I,this.M,i)))return this.M[ws](),this.I[es](i),this.I[rs](s),s;this.I[ns](`Missing ${Tt} at ${i} bytes from current position.`,`Dropping current ${Tt} and trying again.`),this.M[ps](),this.I[es](1)}}class Ns{constructor(t,s){Us.set(this,{[L]:t}),this[$]=s}}class js extends Ns{static*[ds](t,s,i,e,h){const r=yield*t[us](i,e,h);if(r){const t=Ls.get(r)[It],e=Ls.get(r)[Qt];return new s(r,(yield*i[is](t,h))[at](0,t),e)}return null}constructor(t,s,i){super(t,s),this[L]=t,this[Qt]=i,this[O]=i/t[Gt]*1e3,this[xt]=null,this[Xt]=null,this[ss]=null,this[ts]=null,Us.get(this)[Y]=s[Y]}}const Ws="unsynchronizationFlag",Gs="extendedHeaderFlag",Hs="experimentalFlag",Qs="footerPresent";class Vs{static*getID3v2Header(t,s,i){const e={};let h=yield*t[is](3,i);if(73!==h[0]||68!==h[1]||51!==h[2])return null;if(h=yield*t[is](10,i),e[ot]=`id3v2.${h[3]}.${h[4]}`,15&h[5])return null;if(e[Ws]=!!(128&h[5]),e[Gs]=!!(64&h[5]),e[Hs]=!!(32&h[5]),e[Qs]=!!(16&h[5]),128&h[6]||128&h[7]||128&h[8]||128&h[9])return null;const r=h[6]<<21|h[7]<<14|h[8]<<7|h[9];return e[Y]=10+r,new Vs(e)}constructor(t){this[ot]=t[ot],this[Ws]=t[Ws],this[Gs]=t[Gs],this[Hs]=t[Hs],this[Qs]=t[Qs],this[Y]=t[Y]}}class Ys{constructor(t){Ls.set(this,t),this[S]=t[S],this[q]=null,this[vt]=t[vt],this[Mt]=t[Mt],this[Gt]=t[Gt]}}const zs={0:[vs,vs,vs,vs,vs],16:[32,32,32,32,8],240:[As,As,As,As,As]},Ks=(t,s,i)=>8*((t+i)%s+s)*(1<<(t+i)/s)-8*s*(s/8|0);for(let t=2;t<15;t++)zs[t<<4]=[32*t,Ks(t,4,0),Ks(t,4,-1),Ks(t,8,4),Ks(t,8,0)];const Js="bands ",Zs=" to 31",Xs={0:Js+4+Zs,16:Js+8+Zs,32:Js+12+Zs,48:Js+16+Zs},ti="bitrateIndex",si="v2",ii="v1",ei="Intensity stereo ",hi=", MS stereo ",ri="on",ni="off",ai={0:ei+ni+hi+ni,16:ei+ri+hi+ni,32:ei+ni+hi+ri,48:ei+ri+hi+ri},oi={0:{[k]:Ms},2:{[k]:"Layer III",[$t]:1,[K]:ai,[ii]:{[ti]:2,[Qt]:1152},[si]:{[ti]:4,[Qt]:576}},4:{[k]:"Layer II",[$t]:1,[K]:Xs,[Qt]:1152,[ii]:{[ti]:1},[si]:{[ti]:4}},6:{[k]:"Layer I",[$t]:4,[K]:Xs,[Qt]:384,[ii]:{[ti]:0},[si]:{[ti]:3}}},ci="MPEG Version ",ui="ISO/IEC ",li={0:{[k]:`${ci}2.5 (later extension of MPEG 2)`,[V]:si,[Gt]:{0:11025,4:12e3,8:w,12:Ms}},8:{[k]:Ms},16:{[k]:`${ci}2 (${ui}13818-3)`,[V]:si,[Gt]:{0:m,4:f,8:p,12:Ms}},24:{[k]:`${ci}1 (${ui}11172-3)`,[V]:ii,[Gt]:{0:d,4:l,8:y,12:Ms}},length:Y},di={0:Es,1:Ps},yi={0:Ps,1:"50/15 ms",2:Ms,3:"CCIT J.17"},fi={0:{[vt]:2,[k]:a},64:{[vt]:2,[k]:"joint "+a},128:{[vt]:2,[k]:"dual channel"},192:{[vt]:1,[k]:n}};class mi extends Ys{static*[us](t,s,i){const e={},h=yield*Vs.getID3v2Header(t,s,i);h&&(yield*t[is](h[Y],i),t[es](h[Y]));const r=yield*t[is](4,i),n=$s(r[at](0,4)),a=s[us](n);if(a)return new mi(a);if(255!==r[0]||r[1]<224)return null;const o=li[24&r[1]];if(o[k]===Ms)return null;const c=6&r[1];if(oi[c][k]===Ms)return null;const u={...oi[c],...oi[c][o[V]]};if(e[Z]=o[k],e[V]=u[k],e[Qt]=u[Qt],e[ht]=di[1&r[1]],e[Y]=4,e[q]=zs[240&r[2]][u[ti]],e[q]===As)return null;if(e[Gt]=o[Gt][12&r[2]],e[Gt]===Ms)return null;if(e[$t]=2&r[2]&&u[$t],e[H]=!!(1&r[2]),e[It]=Math.floor(125*e[q]*e[Qt]/e[Gt]+e[$t]),!e[It])return null;const l=192&r[3];if(e[Mt]=fi[l][k],e[vt]=fi[l][vt],e[K]=u[K][48&r[3]],e[F]=!!(8&r[3]),e[G]=!!(4&r[3]),e[D]=yi[3&r[3]],e[D]===Ms)return null;e[S]=16;{const{length:t,frameLength:i,samples:h,...r}=e;s[ls](n,e,r)}return new mi(e)}constructor(t){super(t),this[q]=t[q],this[D]=t[D],this[$t]=t[$t],this[F]=t[F],this[G]=t[G],this[H]=t[H],this[V]=t[V],this[K]=t[K],this[Z]=t[Z],this[ht]=t[ht]}}class pi extends js{static*[ds](t,s,i){return yield*super[ds](mi,pi,t,s,i)}constructor(t,s,i){super(t,s,i)}}class wi extends Fs{constructor(t,s,i){super(t,s),this.Frame=pi,this.Header=mi,i(this[_])}get[_](){return J}*[ys](){return yield*this[cs]()}}const gi={0:"MPEG-4",8:"MPEG-2"},bi={0:"valid",2:As,4:As,6:As},Si={0:Es,1:Ps},qi={0:"AAC Main",64:"AAC LC (Low Complexity)",128:"AAC SSR (Scalable Sample Rate)",192:"AAC LTP (Long Term Prediction)"},Mi={0:96e3,4:88200,8:64e3,12:l,16:d,20:y,24:f,28:m,32:p,36:12e3,40:11025,44:w,48:7350,52:Ms,56:Ms,60:"frequency is written explicitly"},Ai={0:{[vt]:0,[k]:"Defined in AOT Specific Config"},64:{[vt]:1,[k]:n},128:{[vt]:2,[k]:c(2,h[0][0])},192:{[vt]:3,[k]:c(3,h[1][3])},256:{[vt]:4,[k]:c(4,h[1][3],h[3][4])},320:{[vt]:5,[k]:c(5,h[1][3],h[3][0])},384:{[vt]:6,[k]:c(6,h[1][3],h[3][0],r)},448:{[vt]:8,[k]:c(8,h[1][3],h[2][0],h[3][0],r)}};class vi extends Ys{static*[us](t,s,i){const e={},h=yield*t[is](7,i),r=$s([h[0],h[1],h[2],252&h[3]|3&h[6]]),n=s[us](r);if(n)Object.assign(e,n);else{if(255!==h[0]||h[1]<240)return null;if(e[Z]=gi[8&h[1]],e[V]=bi[6&h[1]],e[V]===As)return null;const t=1&h[1];e[ht]=Si[t],e[Y]=t?7:9,e[et]=192&h[2],e[Ht]=60&h[2];const i=2&h[2];if(e[it]=qi[e[et]],e[Gt]=Mi[e[Ht]],e[Gt]===Ms)return null;e[H]=!!i,e[At]=448&(h[2]<<8|h[3]),e[Mt]=Ai[e[At]][k],e[vt]=Ai[e[At]][vt],e[G]=!!(32&h[3]),e[j]=!!(8&h[3]),e[Et]=!!(8&h[3]),e[_t]=!!(4&h[3]),e[S]=16,e[Qt]=1024,e[X]=3&h[6];{const{length:t,channelModeBits:i,profileBits:h,sampleRateBits:n,frameLength:a,samples:o,numberAACFrames:c,...u}=e;s[ls](r,e,u)}}if(e[It]=8191&(h[3]<<11|h[4]<<3|h[5]>>5),!e[It])return null;const a=2047&(h[5]<<6|h[6]>>2);return e[E]=2047===a?"VBR":a,new vi(e)}constructor(t){super(t),this[Et]=t[Et],this[_t]=t[_t],this[E]=t[E],this[j]=t[j],this[G]=t[G],this[H]=t[H],this[V]=t[V],this[Y]=t[Y],this[Z]=t[Z],this[X]=t[X],this[it]=t[it],this[ht]=t[ht]}get audioSpecificConfig(){const t=Ls.get(this),s=t[et]+64<<5|t[Ht]<<5|t[At]>>3,i=new Ss(2);return new qs(i[P]).setUint16(0,s,!1),i}}class Pi extends js{static*[ds](t,s,i){return yield*super[ds](vi,Pi,t,s,i)}constructor(t,s,i){super(t,s,i)}}class Ei extends Fs{constructor(t,s,i){super(t,s),this.Frame=Pi,this.Header=vi,i(this[_])}get[_](){return"aac"}*[ys](){return yield*this[cs]()}}class _i extends js{static k(t){return(t[t[Y]-2]<<8)+t[t[Y]-1]}static[bs](t){const s=_i.k(t),i=(t=>{const s=t[Y],i=s-16;let e=0,h=0;for(;h<=i;)e^=t[h++]<<8|t[h++],e=Cs[15][e>>8]^Cs[14][255&e]^Cs[13][t[h++]]^Cs[12][t[h++]]^Cs[11][t[h++]]^Cs[10][t[h++]]^Cs[9][t[h++]]^Cs[8][t[h++]]^Cs[7][t[h++]]^Cs[6][t[h++]]^Cs[5][t[h++]]^Cs[4][t[h++]]^Cs[3][t[h++]]^Cs[2][t[h++]]^Cs[1][t[h++]]^Cs[0][t[h++]];for(;h!==s;)e=(255&e)<<8^Cs[0][e>>8^t[h++]];return e})(t[at](0,-2));return s===i}constructor(t,s,i){s[zt]=i,s[R]=_i.k(t),super(s,t,Ls.get(s)[Qt])}}const Ti="get from STREAMINFO metadata block",Ci={0:"Fixed",1:"Variable"},Ii={0:Ms,16:192};for(let t=2;t<16;t++)Ii[t<<4]=t<6?576*2**(t-2):2**t;const Ri={0:Ti,1:88200,2:176400,3:192e3,4:w,5:p,6:m,7:f,8:y,9:d,10:l,11:96e3,15:As},xi={0:{[vt]:1,[k]:n},16:{[vt]:2,[k]:c(2,h[0][0])},32:{[vt]:3,[k]:c(3,h[0][1])},48:{[vt]:4,[k]:c(4,h[1][0],h[3][0])},64:{[vt]:5,[k]:c(5,h[1][1],h[3][0])},80:{[vt]:6,[k]:c(6,h[1][1],r,h[3][0])},96:{[vt]:7,[k]:c(7,h[1][1],r,h[3][4],h[2][0])},112:{[vt]:8,[k]:c(8,h[1][1],r,h[3][0],h[2][0])},128:{[vt]:2,[k]:`${a} (left, diff)`},144:{[vt]:2,[k]:`${a} (diff, right)`},160:{[vt]:2,[k]:`${a} (avg, diff)`},176:Ms,192:Ms,208:Ms,224:Ms,240:Ms},$i={0:Ti,2:8,4:12,6:Ms,8:16,10:20,12:24,14:Ms};class ki extends Ys{static D(t){if(t[0]>254)return null;if(t[0]<128)return{value:t[0],length:1};let s=1;for(let i=64;i&t[0];i>>=1)s++;let i=s-1,e=0,h=0;for(;i>0;h+=6,i--){if(128!=(192&t[i]))return null;e|=(63&t[i])<<h}return e|=(t[i]&127>>s)<<h,{value:e,length:s}}static[gs](t,s){const i={[is]:function*(){return t}};return ki[us](i,s,0).next().value}static*[us](t,s,i){let e=yield*t[is](6,i);if(255!==e[0]||248!==e[1]&&249!==e[1])return null;const h={},r=$s(e[at](0,4)),n=s[us](r);if(n)Object.assign(h,n);else{if(h[ft]=1&e[1],h[yt]=Ci[h[ft]],h[gt]=240&e[2],h[Ht]=15&e[2],h[mt]=Ii[h[gt]],h[mt]===Ms)return null;if(h[Gt]=Ri[h[Ht]],h[Gt]===As)return null;if(1&e[3])return null;const t=xi[240&e[3]];if(t===Ms)return null;if(h[vt]=t[vt],h[Mt]=t[k],h[S]=$i[14&e[3]],h[S]===Ms)return null}h[Y]=5,e=yield*t[is](h[Y]+8,i);const a=ki.D(e[at](4));if(!a)return null;if(h[ft]?h[Wt]=a.value:h[xt]=a.value,h[Y]+=a[Y],96===h[gt]?(e[Y]<h[Y]&&(e=yield*t[is](h[Y],i)),h[mt]=e[h[Y]-1]+1,h[Y]+=1):112===h[gt]&&(e[Y]<h[Y]&&(e=yield*t[is](h[Y],i)),h[mt]=(e[h[Y]-1]<<8)+e[h[Y]]+1,h[Y]+=2),h[Qt]=h[mt],12===h[Ht]?(e[Y]<h[Y]&&(e=yield*t[is](h[Y],i)),h[Gt]=1e3*e[h[Y]-1],h[Y]+=1):13===h[Ht]?(e[Y]<h[Y]&&(e=yield*t[is](h[Y],i)),h[Gt]=(e[h[Y]-1]<<8)+e[h[Y]],h[Y]+=2):14===h[Ht]&&(e[Y]<h[Y]&&(e=yield*t[is](h[Y],i)),h[Gt]=10*((e[h[Y]-1]<<8)+e[h[Y]]),h[Y]+=2),e[Y]<h[Y]&&(e=yield*t[is](h[Y],i)),h[I]=e[h[Y]-1],h[I]!==(t=>{let s=0;const i=t[Y];for(let e=0;e!==i;e++)s=Ts[s^t[e]];return s})(e[at](0,h[Y]-1)))return null;if(!n){const{blockingStrategyBits:t,frameNumber:i,sampleNumber:e,samples:n,sampleRateBits:a,blockSizeBits:o,crc:c,length:u,...l}=h;s[ls](r,h,l)}return new ki(h)}constructor(t){super(t),this[R]=null,this[yt]=t[yt],this[mt]=t[mt],this[xt]=t[xt],this[Wt]=t[Wt],this[zt]=null}}class Oi extends Fs{constructor(t,s,i){super(t,s),this.Frame=_i,this.Header=ki,i(this[_])}get[_](){return"flac"}*B(t){const s=yield*this.I[is](2,0),i=s[Y]-2;for(;t<i;){if(255===s[t]){const i=s[t+1];if(248===i||249===i)break;255!==i&&t++}t++}return t}*[ys](){for(;;){const t=yield*ki[us](this.I,this.M,0);if(t){let s=Ls.get(t)[Y]+2;for(;s<=524288;){if(this.I.R||(yield*ki[us](this.I,this.M,s))){let i=yield*this.I[is](s);if(this.I.R||(i=i[at](0,s)),_i[bs](i)){const e=new _i(i,t);return this.M[ws](),this.I[es](s),this.I[rs](e),e}}s=yield*this.B(s+1)}this.I[ns](`Unable to sync FLAC frame after searching ${s} bytes.`),this.I[es](s)}else 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WeakMap,i={LOADING:"loading",PLAYING:"playing",STOPPING:"stopping",STOPPED:"stopped",RETRYING:"retrying",SWITCHING:"switching"},e={BUFFER:"buffer",PLAY:"play",PLAY_READY:"playready",LOAD:"load",STREAM_START:"streamstart",STREAM:"stream",STREAM_END:"streamend",METADATA:"metadata",METADATA_ENQUEUE:"metadataenqueue",CODEC_UPDATE:"codecupdate",STOP:"stop",RETRY:"retry",RETRY_TIMEOUT:"retrytimeout",SWITCH:"switch",WARN:"warn",ERROR:"error",PLAYBACK_ERROR:"playbackerror"},h=Symbol(),a=Symbol(),o=Symbol(),c=Symbol(),u=Symbol(),l=Symbol(),d=Symbol(),y=Symbol(),f=Symbol(),m=Symbol(),p=Symbol(),w=Symbol(),g=Symbol(),b=Symbol(),S=Symbol(),q=Symbol(),M=Symbol(),A=Symbol(),v=Symbol(),P=Symbol(),E=Symbol(),_=Symbol(),T=Symbol(),C=Symbol(),I=Symbol(),R=Symbol(),x=Symbol(),$=Symbol("synced"),k=Symbol("syncing"),O=Symbol("pcm_synced"),D=Symbol("not_synced"),B=t=>{const s=new Uint8Array(t.reduce(((t,s)=>t+s.length),0));return t.reduce(((t,i)=>(s.set(i,t),t+i.length)),0),s};class L{constructor(){this.Et=[]}hasEventListener(t,s){return this.Et.some((i=>i.type===t&&i.listener===s))}addEventListener(t,s,i={}){return this.hasEventListener(t,s)||this.Et.push({type:t,listener:s,options:i}),this}removeEventListener(t,s){const i=this.Et.findIndex((i=>i.type===t&&i.listener===s));return i>=0&&this.Et.splice(i,1),this}removeEventListeners(){return this.Et=[],this}dispatchEvent(t){return this.Et.filter((s=>s.type===t.type)).forEach((s=>{const{type:i,listener:e,options:{once:h}}=s;e.call(this,t),!0===h&&this.removeEventListener(i,e)})),this}}class U{constructor(){this._t=0,this.Tt=0,this.Ct=0,this.It=0,this.Rt=0,this.xt=0,this.$t=0}get stats(){return{totalBytesRead:this._t,streamBytesRead:this.Tt,metadataLengthBytesRead:this.Ct,metadataBytesRead:this.It,currentBytesRemaining:this.Rt,currentStreamBytesRemaining:this.xt,currentMetadataBytesRemaining:this.$t}}set currentStreamBytesRemaining(t){this.xt+=t}set currentMetadataBytesRemaining(t){this.$t=t}addBytes(t){this._t+=t,this.Rt-=t}addStreamBytes(t){this.Tt+=t,this.xt-=t}addMetadataLengthBytes(t){this.Ct+=t}addMetadataBytes(t){this.It+=t,this.$t-=t}addCurrentBytesRemaining(t){this.Rt+=t}}const F=()=>{};class N{constructor(t){this.kt=0,this.Ot=0,this.Dt=new Uint8Array(0),this.Bt=[],this.Lt=0,this.Ut=new U,this.Ft=t.onStream||F,this.Nt=t.onMetadata||F,this.jt=t.onMetadataFailed||F,this.Wt=t.onError||F,this.lt=t.enableLogging||!1,this.Gt=Promise.resolve(),this.Ht=Promise.resolve(),this.yt=this.Qt(),this.yt.next()}*Qt(){for(this.kt=1/0;;)this.Vt(yield*this.Yt()),yield*this.zt()}static Kt(...t){const s=t.reduce(((t,s)=>t+s.length),0);return this.Jt(t,s)}static Jt(t,s){const i=new Uint8Array(s);return t.reduce(((t,s)=>(i.set(s,t),t+s.length)),0),i}*iterator(t){for(let s=this.yt.next(t);s.value;s=this.yt.next())yield s.value}readAll(t){for(let s=this.yt.next(t);s.value;s=this.yt.next());}async*asyncIterator(t){for(let s=this.yt.next(t);s.value;s=this.yt.next())await this.Gt,await this.Ht,yield s.value}async asyncReadAll(t){for(let s=this.yt.next(t);s.value;s=this.yt.next())await this.Gt,await this.Ht}Zt(...t){this.lt&&console.warn("icecast-metadata-js",t.reduce(((t,s)=>t+"\n  "+s),"")),this.Wt(...t)}Vt(t){this.Bt.push(t),this.Lt+=t.length}*zt(){if(this.Bt.length){const t=N.Jt(this.Bt,this.Lt);this.Bt=[],this.Lt=0,this.Ut.addStreamBytes(t.length);const s={stream:t,stats:this.Ut.stats};this.Gt=this.Ft(s),yield s}}*Xt(t){yield*this.zt();const s={metadata:t,stats:this.Ut.stats};this.Ht=this.Nt(s),yield s}*Yt(t=0){for(this.Ot===this.Dt.length&&(this.Dt=yield*this.ts(),this.Ot=0);this.Dt.length-this.Ot<t;)this.Dt=N.Kt(this.Dt,yield*this.ts());const s=this.Dt.subarray(this.Ot,(t||this.kt)+this.Ot);return this.Ut.addBytes(s.length),this.kt=s.length<this.kt?this.kt-s.length:0,this.Ot+=s.length,s}*ts(){let t;yield*this.zt();do{t=yield}while(!t||0===t.length);return this.Ut.addCurrentBytesRemaining(t.length),t}}class j extends N{constructor({icyMetaInt:t,icyDetectionTimeout:s=2e3,icyCharacterEncoding:i="utf-8",...e}){super(e),this.ss=new globalThis.TextDecoder(i),this.es=t,this.hs=s,this.yt=this.rs(),this.yt.next()}*rs(){if(yield*this.ns())for(;;)this.kt=this.es,yield*this.os(),yield*this.cs(),this.kt&&(yield*this.us());this.kt=1/0,yield*this.os()}static parseIcyMetadata(t){const s=/(?<key>[^\0]+?)='(?<val>[^\0]*?)(;$|';|'$|$)/,i={};for(const e of t.match(new RegExp(s,"g"))||[]){const t=e.match(s);t&&(i[t.groups.key]=t.groups.val)}return i}get icyMetaInt(){return this.es}*ns(){if(this.es>0)return!0;if(!this.hs)return!1;this.Zt("Passed in Icy-MetaInt is invalid. Attempting to detect ICY Metadata.","See https://github.com/eshaz/icecast-metadata-js for information on how to properly request ICY Metadata.");const t=[null,83,116,114,101,97,109,84,105,116,108,101,61],s=Date.now();let i=0;for(;s+this.hs>Date.now();){this.Dt=N.Kt(this.Dt,yield*this.ts());t:for(;i<this.Dt.length-t.length;){for(let s=1;s<t.length;s++)if(this.Dt[s+i]!==t[s]){i++;continue t}return this.Zt(`Found ICY Metadata! Setting Icy-MetaInt to ${i}.`),this.es=i,!0}}return this.Zt("ICY Metadata not detected, but continuing anyway. Audio errors will occur if there is ICY metadata.",`Searched ${this.Dt.length} bytes for ${(Date.now()-s)/1e3} seconds.`,"Try increasing the `icyDetectionTimeout` value if ICY metadata is present in the stream."),this.jt("icy"),!1}*os(){for(this.Ut.currentStreamBytesRemaining=this.kt;this.kt;)this.Vt(yield*super.Yt())}*cs(){this.kt=1;do{this.kt=16*(yield*this.Yt())[0]}while(1===this.kt);this.Ut.addMetadataLengthBytes(1)}*us(){this.Ut.currentMetadataBytesRemaining=this.kt;const t=yield*this.Yt(this.kt);this.Ut.addMetadataBytes(t.length),yield*this.Xt(j.parseIcyMetadata(this.ss.decode(t)))}}class W extends N{constructor(t){super(t),this.ss=new globalThis.TextDecoder("utf-8"),this.yt=this.ls(),this.yt.next(),this.ds=!1}*ls(){if(yield*this.ys()){const t=yield*this.fs();if(t)for(;yield*this.ys();)this.ds||(yield*this.us(t)),yield*this.os()}this.kt=1/0,yield*this.os()}ps(t,s=0){return new DataView(Uint8Array.from([...t.subarray(s,s+4)]).buffer).getUint32(0,!0)}ws(t,s){return String.fromCharCode(...s).match(t)}*ys(){let t=[];for(;t.length<=65307;){const s=yield*super.Yt(6);if(79===s[0]&&103===s[1]&&103===s[2]&&83===s[3]&&!(248&s[5])){this.ds=1&s[5],this.Ot-=6,this.kt+=6,this.Ut._t-=6,this.Ut.Rt+=6;break}t.push(s[0]),this.Ot-=5,this.Ut._t-=5,this.Ut.Rt+=5}if(t.length&&this.Vt(Uint8Array.from(t)),t.length>65307)return this.Zt("This stream is not an Ogg stream. No Ogg metadata will be returned.","See https://github.com/eshaz/icecast-metadata-js for information on Ogg metadata."),this.jt("ogg"),!1;const s=yield*this.Yt(27),i=yield*this.Yt(s[26]);return this.kt=i.reduce(((t,s)=>t+s),0),!0}*fs(){const t=yield*this.Yt(8);return yield*this.os(),this.ws(/\x7fFLAC/,t.subarray(0,5))?{regex:/^[\x84|\x04]/,length:4}:this.ws(/OpusHead/,t.subarray(0,8))?{regex:/OpusTags/,length:8}:this.ws(/\x01vorbis/,t.subarray(0,7))?{regex:/\x03vorbis/,length:7}:void 0}*us({regex:t,length:s}){this.ws(t,yield*this.Yt(s))&&(yield*this.Xt(yield*this.gs()))}*os(){for(;this.kt;)yield*this.Yt()}*Yt(t){const s=yield*super.Yt(t);return this.Vt(s),s}*ts(){const t=yield*super.ts();return this.Ut.currentStreamBytesRemaining=t.length,t}*gs(){const t=this.ps(yield*this.Yt(4));this.Ut.addMetadataBytes(4);const s=this.ss.decode(yield*this.Yt(t));this.Ut.addMetadataBytes(t);const i=this.ps(yield*this.Yt(4));this.Ut.addMetadataBytes(4);const e=[];for(let t=0;t<i;t++){const t=yield*this.Yt(4);this.Ut.addMetadataBytes(4),e.push(yield*this.Yt(this.ps(t))),this.Ut.addMetadataBytes(e[e.length-1].length)}return this.Ut.currentMetadataBytesRemaining=0,e.reduce(((t,s)=>{const i=s.indexOf(61),e=String.fromCharCode(...s.subarray(0,i)).toUpperCase(),h=this.ss.decode(s.subarray(i+1));return t[e]=t[e]?`${t[e]}; ${h}`:h,t}),{VENDOR_STRING:s})}}class G{constructor(t){const{onStream:s,...i}=t;this.bs=new W(t),this.Ss=new j(i)}get icyMetaInt(){return this.Ss.icyMetaInt}*iterator(t){for(const s of this.Ss.iterator(t))s.stream?yield*this.bs.iterator(s.stream):yield s}readAll(t){for(const s of this.Ss.iterator(t))s.stream&&this.bs.readAll(s.stream)}async*asyncIterator(t){for await(const s of this.Ss.asyncIterator(t))if(s.stream)for await(const t of this.bs.asyncIterator(s.stream))yield t;else yield s}async asyncReadAll(t){for await(const s of this.Ss.iterator(t))s.stream&&await this.bs.asyncReadAll(s.stream)}}class H{constructor({metadataTypes:t=["icy"],...s}={}){const i=t.includes("icy"),e=t.includes("ogg");this.qs=i&&e?new G(s):e?new W(s):i?new j(s):new N(s)}static parseIcyMetadata(t){return j.parseIcyMetadata(t)}get icyMetaInt(){return this.qs.icyMetaInt}*iterator(t){yield*this.qs.iterator(t)}readAll(t){this.qs.readAll(t)}async*asyncIterator(t){return yield*this.qs.asyncIterator(t)}async asyncReadAll(t){return this.qs.asyncReadAll(t)}}const Q=()=>{};class V{constructor(t,{onStream:s=Q,...i}){let e;this.Ms=new ReadableStream({async start(h){e=new H({icyMetaInt:parseInt(t.headers.get("Icy-MetaInt")),...i,onStream:async t=>(h.enqueue(t.stream),s(t))});for await(const s of V.asyncIterator(t.body))await e.asyncReadAll(s);h.close()}}),this.As=e}get icyMetaInt(){return this.As.icyMetaInt}get readableStream(){return this.Ms}async startReading(){try{for await(const t of V.asyncIterator(this.Ms));}catch(t){if("AbortError"!==t.name)throw t}}static asyncIterator(t){const s=t.getReader();return{[Symbol.asyncIterator]:()=>({next:()=>s.read()})}}}const Y=()=>{};class z{constructor({icyBr:t,onMetadataUpdate:s=Y,onMetadataEnqueue:i=Y,paused:e=!1}){this.vs=t,this.Ps=s,this.Es=i,this._s=e,this.Ts=e,this.Cs=!0,this.Is=[],this.Rs=[]}get metadataQueue(){return this.Rs.map((({xs:t,...s})=>s))}addMetadata({metadata:t,stats:s},i,e=0){const h={metadata:t,timestampOffset:i,timestamp:e+=s?this.getTimeByBytes(s.currentStreamPosition):0};this.Ts?this.Is.push(h):this.$s(h)}getTimeByBytes(t){return this.vs?t/(125*this.vs):0}startQueue(t){this.Ts&&(this.Is.forEach((s=>{void 0!==t&&(s.timestamp=t),(void 0===t||s.timestampOffset>=s.timestamp)&&this.$s(s)})),this.Is=[],this.Ts=!1)}purgeMetadataQueue(){this.Rs.forEach((t=>clearTimeout(t.xs))),this.Rs=[],this.Is=[],this.Ts=this._s,this.Cs=!0}$s(t){this.Rs.push(t),this.Es(t.metadata,t.timestampOffset,t.timestamp),this.Cs?(this.ks(),this.Cs=!1):t.xs=setTimeout((()=>{this.ks()}),1e3*(t.timestampOffset-t.timestamp))}ks(){if(this.Rs.length){const{metadata:t,timestampOffset:s,timestamp:i}=this.Rs.shift();this.Ps(t,s,i)}}}var K=r(317);let J;const Z=new Worker(URL.createObjectURL(new Blob(["self.onmessage = () => self.postMessage(!!self.Worker)"],{type:"text/javascript"})));Z.onmessage=t=>{J=t.data,Z.terminate()},Z.postMessage(null);class X{constructor(t,s){this.CRC_DURATION=3e5,this.PCM_DURATION=6e4,this.As=t,this.Os=s,this.initSync(),this.initQueue()}initSync(){clearTimeout(this.Ds),this.Ds=null,this.Bs=null,this.Ls=!0,this.Us=[],this.Fs=0,this.Ns=null,this.js=null,this.Ws=null}initQueue(){this.Gs=0,this.Hs=0,this.Qs=0,this.Vs=[],this.Ys=0,this.zs={},this.Ks=[],this.Js=0}get buffered(){return this.Hs/this.Qs-this.Os.currentTime||0}add(t){const{crc32:s,duration:i,samples:e}=t;this.Hs+=e,this.Qs=t.header.sampleRate,this.Vs.push({crc32:s,duration:i}),this.Ys+=i;let h=this.zs[s];if(h||(h=[],this.zs[s]=h),h.push(this.Gs++),this.Ys>=this.CRC_DURATION){const{crc32:t,duration:s}=this.Vs.shift();this.Ys-=s;const i=this.zs[t];i.shift(),i.length||delete this.zs[t]}this.Ks.push(t),this.Js+=i,this.Js>=this.PCM_DURATION&&(this.Js-=this.Ks.shift().duration)}addAll(t){t.forEach((t=>this.add(t)))}Zs(t){for(const s of t)this.Fs+=s.duration,this.Us.push(s)}async sync(s){if(null===this.Ds){const s=this.buffered;this.Xs=t,this.Ds=setTimeout((()=>{this.Bs=`Buffer underrun after syncing for ${s.toFixed(2)} seconds.`,this.Xs(this.Bs)}),1e3*s)}return this.Zs(s),new Promise((async(t,s)=>{let i;null!==this.Bs?s(this.Bs):this.Xs=s,this.Ls&&(i=this.ti()),i||(this.Ls=!1,i=await this.si()),i?t(i):s("Old and new request do not match.")})).catch((t=>{this.As.state!==i.STOPPING&&this.As.state!==i.STOPPED&&this.As[P](e.WARN,`Reconnected successfully after ${this.As.state}.`,"Unable to sync old and new request.",t);const s=this.Us;return this.initSync(),this.initQueue(),[s,D]})).then((t=>([$,O].includes(t[1])&&this.initSync(),t)))}ti(){if(!this.Us.length)return[[],k];const t=this.Us[0].crc32,s=this.zs[t];let i,h,r;if(s){t:for(const t of s){r=t-(this.Gs-this.Vs.length);for(let t=0;t<this.Us.length&&r+t<this.Vs.length;t++)if(this.Vs[r+t].crc32!==this.Us[t].crc32)continue t;h=r+this.Us.length<=this.Vs.length,i=!0;break}if(h)return[[],k];if(i){const t=this.Vs.length-r;return this.As[P](e.WARN,`Reconnected successfully after ${this.As.state}.`,`Found ${t} frames (${(this.Vs.slice(r).reduce(((t,{duration:s})=>t+s),0)/1e3).toFixed(3)} seconds) of overlapping audio data in new request.`,"Synchronized old and new request."),[this.Us.slice(t),$]}}}async si(){try{const t=1,s=16,i=(t,s)=>t/s;if(!this.Ns){let h;try{h=(await r.e(731).then(r.bind(r,875))).default}catch(t){return void this.As[P](e.WARN,"Failed to synchronize old and new stream","Missing `synaudio` dependency.")}const[n,a,o]=await this.ii(),c=o*t;if(a.samplesDecoded<=c)return[[],k];const u=new h({correlationSampleSize:c,initialGranularity:s});this.Ns=await(J?u.syncWorkerConcurrent(n,a,Math.max(navigator.hardwareConcurrency-1,1)):u.syncWorker(n,a)),this.Ns.offsetFromEnd=i(n.samplesDecoded-this.Ns.sampleOffset,o)}const{correlation:h,offsetFromEnd:n}=this.Ns;let a=1e3*(this.buffered-n);if(-a>this.Fs)return[[],k];const o=0;if(a<0){let t=0;for(let s=0;t<this.Us.length-o&&s>a;t++)s-=this.Us[t].duration;this.Us=this.Us.slice(t-o)}else for(let t=0;t<o&&t<this.Us.length;t++)a-=this.Us[t].duration;return this.As[P](e.WARN,`Reconnected successfully after ${this.As.state}.`,`Synchronized old and new request with ${(Math.round(1e4*h)/100).toFixed(2)}% confidence.`),this.initQueue(),[this.Us,O,a]}catch{}}async ii(){const t=(t,s)=>{let i=t.length-1;for(let e=0;e<s&&i>0;i--)e+=t[i].duration;return this.As[u].decodeAudioData(B(t.slice(i).map((({data:t})=>t))).buffer)};[this.js,this.Ws]=await Promise.all([this.js?this.js:t(this.Ks,2e3*this.buffered),t(this.Us,1/0)]);const s=t=>{const s={channelData:[],samplesDecoded:t.length};for(let i=0;i<t.numberOfChannels;i++)s.channelData.push(Float32Array.from(t.getChannelData(i)));return s};return[s(this.js),s(this.Ws),this.js.sampleRate]}}class tt{constructor(t,i,e,h,r){this.As=t,this.ei=i,this.ut=e,this.X=h,this.hi=r;const n=s.get(this.As);this.ri=n[l],this.ni=n[d],this.ai=0,this.oi=0,this.ci=()=>{this.syncState=D}}static parseMimeType(t){return t.match(/^(?:application\/|audio\/|)(?<mime>[a-zA-Z]+)(?:$|;[ ]*codecs=(?:\'|\")(?<codecs>[a-zA-Z,]+)(?:\'|\"))/)}static canPlayType(t,s,i){const e=tt.parseMimeType(s),h=s=>s.reduce(((s,i)=>{if(""===s)return"";const e=t(i);return e?"maybe"===e||"maybe"===s?"maybe":!0===e||"probably"===e?"probably":void 0:""}),null);if(e){const{mime:t,codecs:r}=e.groups,n=i&&i[t];if(!n||Array.isArray(n))return h(n||[s])||h([`audio/${t}`]);if("object"==typeof n){if(r){const t=r.split(",");return t.length>1?"":n[t[0]]?h(n[t[0]]):""}return"maybe"}}return""}enablePlayButton(t){this.ri.removeAttribute("src"),this.ri.srcObject=null,t.includes("mediasource")?this.ri.src=URL.createObjectURL(new MediaSource):t.includes("webaudio")?(this.ui=new MediaStream,this.ri.srcObject=this.ui):t.includes("html5")&&(this.ri.src="data:audio/mpeg;base64,//sQxAAABFgC/SCEYACCgB9AAAAAppppVCAHBAEIgBByw9WD5+J8ufwxiDEDsMfE+D4fwG/RUGCx6VO4awVxV3qDtQNPiXKnZUNSwKuUDR6IgaeoGg7Fg6pMQU1FMy4xMDCqqqqqqqr/+xLEB4PAAAGkAAAAIAAANIAAAASqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqo=",this.ri.loop=!0)}get syncStateUpdate(){return this.li}get syncState(){return this.di}set syncState(t){this.di=t,this.yi&&this.yi(t),this.li=new Promise((t=>{this.yi=t}))}get isSupported(){return!1}get isAudioPlayer(){return!1}get metadataTimestamp(){return 0}get currentTime(){return 0}get waiting(){return Promise.resolve()}get icecastMetadataQueue(){return this.fi}set icecastMetadataQueue(t){this.fi=t}get codecUpdateQueue(){return this.mi}set codecUpdateQueue(t){this.mi=t}get metadataQueue(){return this.fi?this.fi.metadataQueue:[]}pi(){this.fi.startQueue(this.wi),this.mi.startQueue(this.wi)}async gi(){this.syncState=$,this.syncFrames=[],this.syncDelay=null,this.bi=new X(this.As,this)}async start(t){let s;this.wi=t,[e.RETRY,e.SWITCH].forEach((t=>this.As.addEventListener(t,this.ci)));const h=new Promise((t=>{s=t,[i.PLAYING,i.STOPPING].forEach((t=>this.As.addEventListener(t,s,{once:!0})))})).finally((()=>{[i.PLAYING,i.STOPPING].forEach((t=>this.As.removeEventListener(t,s)))}));await h}async end(){[e.RETRY,e.SWITCH].forEach((t=>this.As.removeEventListener(t,this.ci))),this.fi.purgeMetadataQueue(),this.mi.purgeMetadataQueue()}onStream(t){return t}onMetadata(t){this.fi.addMetadata(t,this.metadataTimestamp,this.currentTime)}onCodecUpdate(t,s){const i=this.currentTime;s<i&&(this.oi+=this.ai),this.ai=s,this.mi.addMetadata({metadata:t},(s+this.oi)/1e3,i)}}class st extends tt{constructor(t,s){super(t,s),this.ri.crossOrigin="anonymous",this.ri.loop=!1,this.ri.preload="none",this.As.addEventListener(e.STREAM_START,(()=>{this.Si||this.end()})),this.gi()}static canPlayType(t){return st.isSupported?super.canPlayType((t=>(new Audio).canPlayType(t)),t):""}static get isSupported(){return Boolean(window.Audio)}static get name(){return"html5"}get isAudioPlayer(){return!0}get metadataTimestamp(){return this.qi?(this.qi.totalDuration+this.Mi)/1e3:0}get currentTime(){return this.Ai&&(performance.now()-this.Ai)/1e3}get waiting(){return new Promise((t=>{this.ri.addEventListener("waiting",t,{once:!0})}))}async gi(){super.gi(),this.qi=null,this.Ai=0,this.Mi=0,this.Si=!1}async start(t){const s=super.start(t);this.Pi=performance.now(),this.ri.src=null,this.ri.srcObject=null,this.ri.src=this.ei,this.As.state!==i.STOPPING&&this.As.state!==i.STOPPED&&(this.ri.addEventListener("playing",(()=>{this.Ai=performance.now(),this.Mi=performance.now()-this.Pi,this.pi(),this.As[P](e.PLAY)}),{once:!0}),this.As[P](e.PLAY_READY),this.Si=!0),await s}async end(){super.end(),this.ri.src=null,this.ri.srcObject=null,this.gi()}onStream(t){this.qi=t[t.length-1]||this.qi,this.syncState===D&&(this.syncState=D)}}class it extends tt{constructor(t,s,i,e,h){super(t,s,i,e,h),this.Ei=r.e(762).then(r.bind(r,448)),this.gi()}static canPlayType(t){return it.isSupported?MediaSource.isTypeSupported(t)?"probably":super.canPlayType(MediaSource.isTypeSupported,t,{mpeg:['audio/mp4;codecs="mp3"'],aac:['audio/mp4;codecs="mp4a.40.2"'],aacp:['audio/mp4;codecs="mp4a.40.2"'],flac:['audio/mp4;codecs="flac"'],ogg:{flac:['audio/mp4;codecs="flac"'],opus:['audio/mp4;codecs="opus"','audio/webm;codecs="opus"'],vorbis:['audio/webm;codecs="vorbis"']}}):""}static get isSupported(){return Boolean(window.MediaSource)}static get name(){return"mediasource"}get isAudioPlayer(){return!0}get metadataTimestamp(){return this._i&&this._i.sourceBuffers.length&&Math.max(this._i.sourceBuffers[0].timestampOffset,this._i.sourceBuffers[0].buffered.length?this._i.sourceBuffers[0].buffered.end(0):0)||0}get currentTime(){return this.ri.currentTime}get waiting(){return new Promise((t=>{this.ri.addEventListener("waiting",t,{once:!0})}))}async gi(){super.gi(),this.Ti=[],this.Si=!1,this.Ci=!1,this.Ii=new Promise((t=>{this.Ri=t})),this.xi=new Promise((t=>{this.$i=t})),this.ki=this.Oi(this.ut,this.X),await this.xi}async start(t){const s=super.start(t);await this.Ii,await this.Di(),await s}async end(){super.end(),await this.gi()}async onStream(t){if((t=t.flatMap((t=>t.codecFrames?t.codecFrames.map((s=>(s.isLastPage=t.isLastPage,s))):t))).length){switch(this.syncState){case D:this.bi.initSync(),this.syncState=k;case k:[this.syncFrames,this.syncState,this.syncDelay]=await this.bi.sync(t),t=this.syncFrames}switch(this.syncState){case O:break;case $:await this.xi,await this.ki(t),this.bi.addAll(t)}}}Oi(t,s){return MediaSource.isTypeSupported(t)?(this.Bi(t),async t=>this.Li(B(t.map((t=>t.data))))):(this.hi.then((i=>this.Ui(t,s,i.channels))).then((()=>{this.Bi(this.Fi.mimeType)})),t.match(/ogg/)?async i=>{let e=[];for await(const h of i){if(this.Ci!==h.isLastPage)if(h.isLastPage)this.Ci=!0;else{await this.Li(B(e)),e=[];const i=await this.hi;await this.Ui(t,s,i.channels),this.Ci=!1}e.push(...this.Fi.iterator([h]))}await this.Li(B(e))}:async t=>this.Li(B([...this.Fi.iterator(t)])))}async Ui(t,s,i){this.Fi=new(await this.Ei).default(t,{codec:s,preferredContainer:i>2?"webm":"fmp4"}),MediaSource.isTypeSupported(this.Fi.mimeType)||this.As[P](e.PLAYBACK_ERROR,`Media Source Extensions API in your browser does not support ${t} or ${this.Fi.mimeType}.See: https://caniuse.com/mediasource and https://developer.mozilla.org/en-US/docs/Web/API/Media_Source_Extensions_API`)}Bi(t){this._i=new MediaSource,this.Ri(),this._i.addEventListener("sourceopen",(()=>{this.As.state!==i.STOPPED&&this.As.state!==i.STOPPING&&(this._i.addSourceBuffer(t).mode="sequence"),this.Ni=0,this.$i()}),{once:!0})}async Di(){this.ri.loop=!1,this.ri.src=URL.createObjectURL(this._i),await this.xi}async ji(){return new Promise((t=>{const s=this._i.sourceBuffers[0];s.updating?s.addEventListener("updateend",t,{once:!0}):t()}))}async Li(t){if(this.As[P](e.STREAM,t),this._i.sourceBuffers.length||this.As[P](e.WARN,"Attempting to append audio, but MediaSource has not been or is no longer initialized","Please be sure that `detachAudioElement()` was called and awaited before reusing the element with a new IcecastMetadataPlayer instance"),this.As.state!==i.STOPPING&&this._i.sourceBuffers.length){this.Ti.push(t);try{for(;this.Ti.length;)this._i.sourceBuffers[0].appendBuffer(this.Ti.shift()),await this.ji()}catch(t){if("QuotaExceededError"!==t.name)throw t}this.Si||(this.ni<=this.metadataTimestamp?(this.ri.addEventListener("playing",(()=>{this.pi(),this.As[P](e.PLAY)}),{once:!0}),this.As[P](e.PLAY_READY),this.Si=!0):this.As[P](e.BUFFER,this.metadataTimestamp)),this.ri.currentTime>5+this.ni&&this.Ni+5e3<performance.now()&&(this.Ni=performance.now(),this._i.sourceBuffers[0].remove(0,this.ri.currentTime-5+this.ni),await this.ji())}}}class et extends tt{constructor(t,s,i,e,h){super(t,s,i,e,h),this.Wi=t[u],this.gi()}static canPlayType(t){return et.isSupported?super.canPlayType((t=>'audio/ogg;codecs="opus"'===t||'audio/ogg;codecs="flac"'===t||'audio/ogg;codecs="vorbis"'===t||"audio/mpeg"===t||"audio/flac"===t),t,{flac:["audio/flac"],mpeg:["audio/mpeg"],ogg:{flac:['audio/ogg;codecs="flac"'],opus:['audio/ogg;codecs="opus"'],vorbis:['audio/ogg;codecs="vorbis"']}}):""}static get isSupported(){return Boolean(window.WebAssembly&&(window.AudioContext||window.webkitAudioContext)&&window.MediaStream)}static get name(){return"webaudio"}get isAudioPlayer(){return!0}get metadataTimestamp(){return this.Gi/1e3}get currentTime(){return(performance.now()-this.Hi)/1e3||0}get waiting(){return this.Qi}Vi(t){let s;this.Yi+=t,s=setTimeout((()=>{this.Yi-=t,this.zi.delete(s),this.zi.size||this.Ki()}),this.Yi),this.zi.add(s)}Ki(){this.Ji&&this.Ji(),this.Qi=new Promise((t=>{this.Ji=t}))}Zi(){this.zi&&this.zi.forEach((t=>clearTimeout(t))),this.zi=new Set,this.Yi=0,this.Ki()}async Xi(){let t;this.te=new Promise((t=>{this.se=t}));try{switch(this.X){case"mpeg":const{MPEGDecoderWebWorker:s}=await Promise.all([r.e(385),r.e(88)]).then(r.bind(r,121));t=s;break;case"opus":const{OpusDecoderWebWorker:i}=await Promise.all([r.e(385),r.e(694)]).then(r.bind(r,978));t=i;break;case"flac":const{FLACDecoderWebWorker:e}=await Promise.all([r.e(385),r.e(993)]).then(r.bind(r,655));t=e;break;case"vorbis":const{OggVorbisDecoderWebWorker:h}=await Promise.all([r.e(385),r.e(398)]).then(r.bind(r,994));t=h}}catch(t){return void this.As[P](e.PLAYBACK_ERROR,`Missing \`webaudio-${this.X}\` dependency.`,`Unable to playback playback \`${this.X}\` audio.`)}if(t){const s=await this.hi;this.se(),this.ie=new t(s)}else this.As[P](e.PLAYBACK_ERROR,"Unsupported `webaudio` playback codec: "+this.X)}async gi(){super.gi(),this.Gi=0,this.ee=0,this.he=0,this.Mt=0,this.Hi=void 0,this.Si=!1,this.Zi(),this.re=new Promise((t=>{this.ne=t}))}async start(t){this.ie||await this.Xi();const s=super.start(t);this.ne(),await s}async end(){super.end(),this.ie&&(this.ie.terminate(),this.ie=null),this.ui&&this.ui.stream.getTracks().forEach((t=>this.ui.stream.removeTrack(t))),this.gi()}async onStream(t){if("vorbis"!==this.X)switch(t=t.flatMap((t=>t.codecFrames||t)),this.syncState){case D:this.bi.initSync(),this.syncState=k;case k:[this.syncFrames,this.syncState,this.syncDelay]=await this.bi.sync(t),t=this.syncFrames}switch(this.syncState){case O:break;case $:t.length&&(this.Gi=t[t.length-1].totalDuration,this.ae(t))}}async ae(t){if(await this.te,this.ie){let s;await this.ie.ready,"vorbis"===this.X?s=this.ie.decodeOggPages(t):(s=this.ie.decodeFrames(t.map((t=>t.data))),this.bi.addAll(t)),s.then((t=>this.oe(t)))}}async oe({channelData:t,samplesDecoded:s,sampleRate:h}){if(await this.re,this.As.state!==i.STOPPING&&this.As.state!==i.STOPPED&&s){this.As[P](e.STREAM,{channelData:t,samplesDecoded:s,sampleRate:h}),this.Mt||(this.Mt=h,this.ui=this.Wi.createMediaStreamDestination(),this.ui.channelCount=this.Wi.destination.maxChannelCount,this.ri.srcObject=this.ui.stream);const i=this.Wi.createBuffer(t.length,s,this.Mt);t.forEach(((t,s)=>i.getChannelData(s).set(t)));const r=this.Wi.createBufferSource();r.buffer=i,r.connect(this.ui);const n=100,a=this.ee*n+this.he,o=Math.round(this.Wi.currentTime*this.Mt*n);a<o&&(this.he+=o-a),r.start(a/this.Mt/n),this.Vi(s/this.Mt*1e3),this.Si||(this.ni<=this.metadataTimestamp?(this.As[P](e.PLAY_READY),this.Hi=performance.now(),this.pi(),this.As[P](e.PLAY),this.Si=!0):this.As[P](e.BUFFER,this.metadataTimestamp)),this.ee+=s}}}class ht{constructor(i){const e=s.get(i);this.As=i,this.ri=e[l],this.lt=e[p],this.ce=e[q],this.ue="",this.le(),this.Os=new tt(this.As),this.Os.icecastMetadataQueue=this.fi,this.Os.codecUpdateQueue=this.mi,this.Os.enablePlayButton(ht.supportedPlaybackMethods),this.de=[],this.I=void 0,this.ut="",this.X="",this.ye=Promise.resolve(),this.fe=t}static get supportedPlaybackMethods(){return[it,et,st].map((t=>t.isSupported?t.name:""))}static canPlayType(t){return{mediasource:it.canPlayType(t),html5:st.canPlayType(t),webaudio:et.canPlayType(t)}}get endpoint(){return this.ei}get player(){return this.Os}get playbackMethod(){return this.ue}get icyMetaInt(){return this.me&&this.me.icyMetaInt}async playStream(){return this.fetchStream().then((async t=>(this.As[P](e.STREAM_START),this.readIcecastResponse(t).finally((()=>{this.As[P](e.STREAM_END)}))))).catch((t=>{if(this.As.state!==i.SWITCHING)throw t}))}async switchStream(){this.As.state!==i.PLAYING&&(this.fe(),await this.ye);const t=s.get(this.As);t[x]=i.SWITCHING,t[R].abort(),t[R]=new AbortController}async fetchStream(){const t=s.get(this.As);this.ei=t[C].next().value;const i=t[I]?{"Icy-MetaData":1}:{};if(i.Range="bytes=0-",t[M]){const s=t[M];i.Authorization="Basic "+btoa(s.user+":"+s.password)}const e=await fetch(this.ei,{method:"GET",headers:i,signal:t[R].signal});if(!e.ok){const t=new Error(`${e.status} received from ${e.url}`);throw t.name="HTTP Response Error",t}return e}async readIcecastResponse(t){const i=t.headers.get("content-type"),h=s.get(this.As);let r;const n=new Promise((t=>{r=t})),a=new Promise((t=>{this.I=new K.Ay(i,{onCodec:t,onCodecHeader:r,onCodecUpdate:this.ce&&((...t)=>this.Os.onCodecUpdate(...t)),enableLogging:this.lt})}));this.me=new V(t,{onMetadata:async t=>{this.Os.onMetadata(t)},onStream:async({stream:t})=>{this.As[P](e.STREAM,t);const s=[...this.I.parseChunk(t)];if(this.Os.isAudioPlayer){const t=[...this.de,...s];this.de=[],await this.Os.onStream(t)}else this.de.push(...s)},onError:(...t)=>this.As[P](e.WARN,...t),metadataTypes:h[o],icyCharacterEncoding:h[f],icyDetectionTimeout:h[m],...h[y]?{icyMetaInt:h[y]}:{}});const c=this.me.startReading(),u=await a;this.Os.isAudioPlayer||([this.Os,this.ue]=this.pe(i,u,n)),this.Os.syncState===$?this.Os.start():await this.ge(i,u,n),await c}async ge(t,s,e){let h,r,n=!1,a=!1;const o=this.Os,c=this.Os.icecastMetadataQueue,u=this.Os.codecUpdateQueue;this.le(),o.icecastMetadataQueue=this.fi,o.codecUpdateQueue=this.mi;const l=()=>{a=!0,this.As.state===i.STOPPING&&this.As.state===i.STOPPED||(o.icecastMetadataQueue.purgeMetadataQueue(),o.codecUpdateQueue.purgeMetadataQueue(),this.Os.start(Math.max(0,o.syncDelay/1e3)).then((()=>o.end())).then(r))};this.fe=()=>{n=!0,this.fi.purgeMetadataQueue(),this.mi.purgeMetadataQueue(),this.Os.icecastMetadataQueue=c,this.Os.codecUpdateQueue=u,void 0===h||a||(clearTimeout(h),l())};const d=()=>this.Os.syncStateUpdate.then((a=>{if(n)r();else switch(a){case k:return d();case $:this.fi.purgeMetadataQueue(),this.mi.purgeMetadataQueue(),this.Os.icecastMetadataQueue=c,this.Os.codecUpdateQueue=u,this.As.state===i.STOPPING&&this.As.state===i.STOPPED||(this.As[x]=i.PLAYING),r();break;case O:case D:o.icecastMetadataQueue=c,o.codecUpdateQueue=u,[this.Os,this.ue]=this.pe(t,s,e),this.de.push(...o.syncFrames),h=setTimeout(l,Math.max(o.syncDelay,0))}}));let y;this.ye=new Promise((t=>{r=t,y=()=>{this.fe(),r()},this.As.addEventListener(i.STOPPING,y,{once:!0}),d()})).finally((()=>{this.As.removeEventListener(i.STOPPING,y)}))}le(){this.fi=new z({onMetadataUpdate:(...t)=>this.As[P](e.METADATA,...t),onMetadataEnqueue:(...t)=>this.As[P](e.METADATA_ENQUEUE,...t),paused:!0}),this.mi=new z({onMetadataUpdate:(...t)=>this.As[P](e.CODEC_UPDATE,...t),paused:!0})}pe(t,i,e){const{[s.get(this.As)[c]]:h,...r}={mediasource:it,webaudio:et,html5:st};let n,a;for(const s of Object.values({firstMethod:h,...r})){const h=s.canPlayType(`${t};codecs="${i}"`);if("probably"===h||"maybe"===h){a=s.name,n=new s(this.As,this.ei,t,i,e),n.icecastMetadataQueue=this.fi,n.codecUpdateQueue=this.mi;break}}if(!n)throw new Error(`Your browser does not support this audio codec ${t}${i&&`;codecs="${i}"`}`);return[n,a]}}let rt;try{new window.EventTarget,rt=window.EventTarget}catch{rt=L}const nt=Symbol(),at=Symbol(),ot=Symbol(),ct=Symbol(),ut=Symbol(),lt=Symbol(),dt=Symbol(),yt=Symbol(),ft=Symbol(),mt=Symbol(),pt=Symbol(),wt=Symbol();class gt extends rt{static*[A](t){for(;;){const i=s.get(t)[h];for(const e of i)if(yield e,s.get(t)[h]!==i)break}}static[v](t,s,i={}){const e={[h]:(t&&(Array.isArray(t)?t:[t]))??i[h],[d]:s.bufferLength??i[d]??1,[y]:s.icyMetaInt??i[y],[f]:s.icyCharacterEncoding??i[f],[m]:s.icyDetectionTimeout??i[m],[o]:(s.metadataTypes??i[o])||["icy"],[I]:((s.metadataTypes??i[o])||["icy"]).includes("icy"),[p]:s.enableLogging??i[p]??!1,[q]:Boolean(s.enableCodecUpdate??i[q]??s.onCodecUpdate),[a]:s.endpointOrder??i[a]??"ordered",[w]:s.retryDelayRate??i[w]??.1,[g]:s.retryDelayMin??i[g]??.5,[b]:s.retryDelayMax??i[b]??2,[S]:s.retryTimeout??i[S]??30,[c]:(s.playbackMethod??i[c])||"mediasource",[M]:s.authentication??i[M]};return e[h]!==i[h]&&"random"===e[a]&&(e[h]=e[h].sort((()=>.5-Math.random()))),e}constructor(h,r={}){super(),s.set(this,{[C]:gt[A](this),[l]:r.audioElement||new Audio,...gt[v](h,r),[ot]:{[e.PLAY]:r.onPlay||t,[e.PLAY_READY]:t,[e.LOAD]:r.onLoad||t,[e.STREAM_START]:r.onStreamStart||t,[e.BUFFER]:r.onBuffer||t,[e.STREAM]:r.onStream||t,[e.STREAM_END]:r.onStreamEnd||t,[e.METADATA]:r.onMetadata||t,[e.METADATA_ENQUEUE]:r.onMetadataEnqueue||t,[e.CODEC_UPDATE]:r.onCodecUpdate||t,[e.STOP]:r.onStop||t,[e.RETRY]:r.onRetry||t,[e.RETRY_TIMEOUT]:r.onRetryTimeout||t,[e.SWITCH]:r.onSwitch||t,[e.WARN]:(...t)=>{this[T](console.warn,r.onWarn,t)},[e.ERROR]:(...t)=>{this[T](console.error,r.onError,t)},[e.PLAYBACK_ERROR]:(...t)=>{this.state!==i.RETRYING?(this[P](e.ERROR,...t),this.stop()):s.get(this)[mt]()}},[mt]:()=>{clearTimeout(s.get(this)[wt]),this.removeEventListener(e.STREAM_START,s.get(this)[mt]),s.get(this)[l].removeEventListener("waiting",s.get(this)[yt]);try{s.get(this)[l].pause()}catch(t){s.get(this)[dt](t)}try{s.get(this)[at]=s.get(this)[nt].player.end()}catch{}},[ut]:()=>{this.play()},[ct]:()=>{this.stop()},[dt]:t=>{const s=t?.target?.error||t;this[P](e.PLAYBACK_ERROR,"The audio element encountered an error."+({1:" MEDIA_ERR_ABORTED The fetching of the associated resource was aborted by the user's request.",2:" MEDIA_ERR_NETWORK Some kind of network error occurred which prevented the media from being successfully fetched, despite having previously been available.",3:" MEDIA_ERR_DECODE Despite having previously been determined to be usable, an error occurred while trying to decode the media resource, resulting in an error.",4:" MEDIA_ERR_SRC_NOT_SUPPORTED The associated resource or media provider object (such as a MediaStream) has been found to be unsuitable.",5:" MEDIA_ERR_ENCRYPTED"}[s?.code]||""))},[lt]:()=>{const t=s.get(this)[l];(this.state===i.LOADING||!t.loop&&this.state!==i.STOPPING&&this.state!==i.STOPPED)&&t.play().then((()=>{this[x]=i.PLAYING})).catch((t=>{this[P](e.PLAYBACK_ERROR,t,"Playback failed.")}))},[ft]:t}),this[E](),this[x]=i.STOPPED,s.get(this)[nt]=new ht(this)}static canPlayType(t){return ht.canPlayType(t)}get audioElement(){return s.get(this)[l]}get[u](){return gt.constructor[u]}get endpoint(){return s.get(this)[nt].endpoint}get icyMetaInt(){return s.get(this)[nt].icyMetaInt}get metadataQueue(){return s.get(this)[nt].player.metadataQueue}get state(){return s.get(this)[x]}get playbackMethod(){return s.get(this)[nt].playbackMethod}set[x](t){this.dispatchEvent(new CustomEvent(t)),s.get(this)[x]=t}[E](){const t=s.get(this)[l];t.addEventListener("pause",s.get(this)[ct]),t.addEventListener("play",s.get(this)[ut]),t.addEventListener("error",s.get(this)[dt]),this.addEventListener(e.PLAY_READY,s.get(this)[lt])}async detachAudioElement(){const t=s.get(this)[l];t.removeEventListener("pause",s.get(this)[ct]),t.removeEventListener("play",s.get(this)[ut]),t.removeEventListener("error",s.get(this)[dt]),this.removeEventListener(e.PLAY_READY,s.get(this)[lt]),await this.stop()}async play(){if(this.state===i.STOPPED){const t=new Promise((t=>{this.addEventListener(e.PLAY,t,{once:!0})})),h=new Promise((t=>{this.addEventListener(e.STREAM_END,t,{once:!0})}));s.get(this)[R]=new AbortController,this[x]=i.LOADING,this[P](e.LOAD);const r=async()=>s.get(this)[nt].playStream().then((async()=>{if(this.state===i.SWITCHING)return this[P](e.SWITCH),r();this.state!==i.STOPPING&&this.state!==i.STOPPED&&(await t,await h,await s.get(this)[nt].player.waiting)})).catch((async t=>{if(t&&"AbortError"!==t.name){if(await this[_](t))return this[P](e.RETRY),r();s.get(this)[R].abort(),this.state!==i.STOPPING&&this.state!==i.STOPPED&&this[P](e.ERROR,t.message.match(/network|fetch|offline|codec/i)?t:t.stack,t)}}));new Promise(((t,i)=>{s.get(this)[ft]=i,r().then(t)})).catch((t=>{if(this.state!==i.STOPPING)throw t})).finally((()=>{s.get(this)[mt](),this[P](e.STOP),this[x]=i.STOPPED})),await t}}async stop(){this.state!==i.STOPPED&&this.state!==i.STOPPING&&(this[x]=i.STOPPING,s.get(this)[R].abort(),s.get(this)[ft](),await new Promise((t=>{this.addEventListener(e.STOP,t,{once:!0})})))}async switchEndpoint(t,e){if(this.state!==i.STOPPED&&this.state!==i.STOPPING){const i=s.get(this);return Object.assign(i,gt[v](t,e,i)),i[nt].switchStream()}}async[_](t){if(0===s.get(this)[S])return!1;if(s.get(this)[x]===i.RETRYING)return await new Promise((t=>{this.addEventListener(i.STOPPING,t,{once:!0});const e=Math.min(1e3*s.get(this)[g]*(s.get(this)[w]+1)**s.get(this)[pt]++,1e3*s.get(this)[b]);setTimeout((()=>{this.removeEventListener(i.STOPPING,t),t()}),e+.3*e*Math.random())})),s.get(this)[x]===i.RETRYING;if(s.get(this)[x]!==i.STOPPING&&s.get(this)[x]!==i.STOPPED&&(t.message.match(/network|fetch|offline|Error in body stream/i)||"HTTP Response Error"===t.name)){this[P](e.ERROR,t.name,t),this[x]=i.RETRYING,s.get(this)[I]&&this[P](e.WARN,"This stream was requested with ICY metadata.",'If there is a CORS preflight failure, try removing "icy" from the metadataTypes option.',"See https://github.com/eshaz/icecast-metadata-js#cors for more details.");const h=new Promise((t=>{s.get(this)[yt]=t,s.get(this)[l].addEventListener("waiting",s.get(this)[yt],{once:!0})}));return s.get(this)[wt]=setTimeout((()=>{h.then((()=>{s.get(this)[x]===i.RETRYING&&(this[P](e.RETRY_TIMEOUT),this.stop())}))}),1e3*s.get(this)[S]),s.get(this)[pt]=0,!0}return!1}[P](t,...i){this.dispatchEvent(new CustomEvent(t,{detail:i})),s.get(this)[ot][t](...i)}[T](t,i,e){s.get(this)[p]&&t("icecast-metadata-js",e.reduce(((t,s)=>t+"\n  "+s),"")),i&&i(...e)}}const bt=window.AudioContext||window.webkitAudioContext;if(bt&&!gt.constructor[u]){gt.constructor[u]="audio context pending";const t=t=>{console.error("icecast-metadata-js","Failed to start the AudioContext. WebAudio playback will not be possible.",t)},s=["touchstart","touchend","mousedown","keydown"],i=()=>{s.forEach((t=>document.removeEventListener(t,i)));const e=new bt({latencyHint:"interactive"});e.destination.channelCount=e.destination.maxChannelCount,e.resume().then((()=>{e.createScriptProcessor(16384,2,2).connect(e.destination),e.onstatechange=()=>{"running"!==e.state&&e.resume().catch(t)}})).catch(t),gt.constructor[u]=e};s.forEach((t=>document.addEventListener(t,i)))}})(),n=r.O(n),IcecastMetadataPlayer=n.default})();
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