@logue/smfplayer/bin/smf.player.min.js

smfplayer.js is JavaScript based Standard Midi Player for WebMidiLink based synthesizer.

/*! For license information please see smf.player.min.js.LICENSE.txt */
!function(e,t){"object"==typeof exports&&"object"==typeof module?module.exports=t():"function"==typeof define&&define.amd?define("SMF",[],t):"object"==typeof exports?exports.SMF=t():e.SMF=t()}("undefined"!=typeof self?self:this,(function(){return(()=>{var e={454:(e,t,n)=>{"use strict";n.d(t,{Z:()=>f});var r=n(579),i=n(994);function a(e){return a="function"==typeof Symbol&&"symbol"==typeof Symbol.iterator?function(e){return typeof e}:function(e){return e&&"function"==typeof Symbol&&e.constructor===Symbol&&e!==Symbol.prototype?"symbol":typeof e},a(e)}function o(e,t){if(!(e instanceof t))throw new TypeError("Cannot call a class as a function")}function s(e,t){for(var n=0;n<t.length;n++){var r=t[n];r.enumerable=r.enumerable||!1,r.configurable=!0,"value"in r&&(r.writable=!0),Object.defineProperty(e,r.key,r)}}function u(e,t){return u=Object.setPrototypeOf||function(e,t){return e.__proto__=t,e},u(e,t)}function c(e){var t=function(){if("undefined"==typeof 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0!==arguments[0]?arguments[0]:{};o(this,e),this.timeDivision=0|t.timeDivision||96,this.channel=0|t.channel,this.timeOffset=0|t.timeOffset,this.PATTERN=/[a-glnortv<>][+#-]?\d*\.?&?/g,this.NOTE_TABLE={c:0,d:2,e:4,f:5,g:7,a:9,b:11},this.MINIM=2*this.timeDivision,this.SEMIBREVE=4*this.timeDivision,this.VELOCITY_MAGNIFICATION=7,this.mml=t.mml,this.events=[],this.plainEvents=[],this.endTime=0,this.noteOffNegativeOffset=2,this.ignoreTempo=!1|t.igonreTempo,this.maxOctave=8|t.maxOctave,this.minOctave=0|t.minOctave,this.octaveMode=0|t.octaveMode,this.minNote=12|t.minNote,this.maxNote=98|t.minNote,this.parse()}var t,n,a;return t=e,(n=[{key:"parse",value:function(){var e=[];try{e=this.mml.toLowerCase().match(this.PATTERN)}catch(e){return}if(e){var t,n=this.timeOffset,a=this.timeDivision,o=0,s=8,u=4,c=!1,l=[],h=i(e);try{for(h.s();!(t=h.n()).done;){var 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e,t,n=this.input,r=this.ip,i=this.dataInformation={copy:null,date:null,exst:null,note:null,prot:null,sorc:null,titl:null,trac:null,vers:null};r<this.header.trackOffset;)switch(e=String.fromCharCode(n[r++],n[r++],n[r++],n[r++]),t=n[r++]<<8|n[r++],e){case"titl":case"copy":case"vers":case"date":case"prot":i[e]=String.fromCharCode.apply(null,n.subarray(r,r+=t));break;case"sorc":i[e]=n[r++];break;case"note":i[e]=n[r++]<<8|n[r++];break;case"exst":break;default:i[e]=n.subarray(r,r+=t)}this.ip=r}},{key:"parseTracks",value:function(){var e,t,n,r,i,a,o,s,u,c=this.input,l=this.ip,h=this.tracks=[],f=function(){var e,t=c[l++]<<8|c[l++],n=l+t,r=[];if(1!==c[l++])throw new Error("invalid EditInstrument const value:"+c[l-1]);for(;l<n;)(e={}).part=c[l++]>>4&3,e.modulator={ML:c[l]>>5,VIV:c[l]>>4&1,EG:c[l]>>3&1,SUS:c[l]>>2&1,RR:(3&c[l++])<<2|c[l]>>6,DR:c[l]>>4&15,AR:(3&c[l++])<<2|c[l]>>6,SL:c[l]>>4&15,TL:(3&c[l++])<<4|c[l]>>4,WF:c[l]>>3&1,FB:7&c[l++]},e.carrier={ML:c[l]>>5,VIV:c[l]>>4&1,EG:c[l]>>3&1,SUS:c[l]>>2&1,RR:(3&c[l++])<<2|c[l]>>6,DR:c[l]>>4&15,AR:(3&c[l++])<<2|c[l]>>6,SL:c[l]>>4&15,TL:(3&c[l++])<<4|c[l]>>4,WF:c[l]>>3&1,FB:7&c[l++]},e.octaveSelect=3&c[l++],r.push(e);return r},p=function(){if(1!==c[l++])throw new Error("invalid Vibrato const value:"+c[l-1]);return{part:c[l++]>>5&3,switch:c[l++]>>6}},m=function(){var e=c[l++]<<8|c[l++],t=l+e;if(17!==c[l++])throw new Error("invalid DeviceSpecific const value:"+c[l-1]);return{data:c.subarray(l,l+=t-l)}};for(s=0,u=this.header.numberOfTracks;s<u;++s){if("trac"!==(e=String.fromCharCode(c[l++],c[l++],c[l++],c[l++])))throw new Error("invalid track signature:"+e);for(t=c[l++]<<24|c[l++]<<16|c[l++]<<8|c[l++],n=l+t,o=h[s]=[];l<n;){if((a={key:null,length:null,octaveShift:null,subType:null,type:null,value:{},velocity:null,voice:null}).deltaTime=c[l++],255!==(r=c[l++]))a.type="note",a.subType="Note",a.voice=r>>6,a.key=63&r,1===this.dataInformation.note&&(i=c[l++],a.velocity=i>>2,a.octaveShift=3&i);else switch(a.type="meta",(r=c[l++])>>4){case 11:switch(15&r){case 0:a.subType="MasterVolume",a.value=c[l++];break;case 10:a.subType="DrumScale",a.value={channel:c[l]>>3&7,drum:1&c[l++]};break;default:throw new Error("unknown message type:"+r.toString(16))}break;case 12:a.subType="SetTempo",a.value={timeBase:7==(7&r)?NaN:Math.pow(2,7&r)*(0==(8&r)?6:15),tempo:c[l++]};break;case 13:switch(15&r){case 0:a.subType="Point",a.value=c[l++];break;case 13:a.subType="Loop",a.value={id:c[l]>>6,count:c[l]>>2&15,point:3&c[l++]};break;case 14:a.subType="Nop",a.value=c[l++];break;case 15:a.subType="EndOfTrack",a.value=c[l++];break;default:throw new Error("unkwnon message type:"+r.toString(16))}break;case 14:switch(15&r){case 0:a.subType="InstrumentLowPart",a.value={part:c[l]>>6,instrument:63&c[l++]};break;case 1:a.subType="InstrumentHighPart",a.value={part:c[l]>>6,instrument:1&c[l++]};break;case 2:a.subType="Volume",a.value={part:c[l]>>6,volume:63&c[l++]};break;case 3:a.subType="Valance",a.value={part:c[l]>>6,valance:63&c[l++]};break;case 4:a.subType="PitchBend",a.value={part:c[l]>>6,value:63&c[l++]};break;case 5:a.subType="ChannelAssign",a.value={part:c[l]>>6,channel:63&c[l++]};break;case 6:a.subType="VolumeChange",a.value={part:c[l]>>6,volume:(63&c[l++])<<26>>26};break;case 7:a.subType="PitchBendRange",a.value={part:c[l]>>6,value:63&c[l++]};break;case 9:a.subType="MasterCoarseTuning",a.value={part:c[l]>>6,value:63&c[l++]};break;case 10:a.subType="Modulation",a.value={part:c[l]>>6,depth:63&c[l++]};break;default:throw new Error("unkwnon message type:"+r.toString(16))}break;case 15:switch(15&r){case 0:a.subType="EditInstrument",a.value=f();break;case 1:a.subType="Vibrato",a.value=p();break;case 15:a.subType="DeviceSpecific",a.value=m();break;default:throw new Error("unkwnon message type:"+r.toString(16))}break;default:throw new Error("unkwnon message type:"+r.toString(16))}o.push(a)}l=n}this.ip=l}},{key:"convertToMidiTracks",value:function(){this.timeDivision;var e,t,n,r,i,a,o,s,u,c,l,h,f,p,m=[],y=[],v=this.tracks,d=[];for(c=0;c<16;++c)y[c]=[],d[c]=0;for(c=0,l=v.length;c<l;++c){for(r=[],i=a=h=0,f=(e=v[c]).length;h<f;++h)switch(i+=(t=e[h]).deltaTime,t.id=a,t.time=i,t.subType){case"Nop":break;case"Note":r[a++]=t,r[a]={id:a,type:"internal",subType:"NoteOff",time:i+t.length,key:t.key,voice:t.voice,velocity:t.velocity,octaveShift:t.octaveShift},a++;break;case"InstrumentHighPart":if(n=t,"InstrumentLowPart"!==(t=e[++h]).subType)throw new Error("broken instrument");r[a]={id:a,type:"internal",subType:"ProgramChange",time:i,part:t.value.part,instrument:n.value.instrument<<6|t.value.instrument},a++;break;default:r[a++]=t}for(r.sort((function(e,t){return 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e.charCodeAt(0)}))));break;case"MasterVolume":s=t.value,y[p=0].push(this.deltaTimeToByteArray(i-d[p]).concat(240,7,127,127,4,1,s,s,247));break;case"Modulation":y[p=4*c+t.value.part].push(this.deltaTimeToByteArray(i-d[p]).concat(176|p,1,2*t.value.depth));break;case"Volume":y[p=4*c+t.value.part].push(this.deltaTimeToByteArray(i-d[p]).concat(176|p,7,2*t.value.volume));break;case"Valance":y[p=4*c+t.value.part].push(this.deltaTimeToByteArray(i-d[p]).concat(176|p,10,2*(t.value.valance-32)+64));break;case"PitchBend":y[p=4*c+t.value.part].push(this.deltaTimeToByteArray(i-d[p]).concat(224|p,2*t.value.value,2*t.value.value));break;case"PitchBendRange":y[p=4*c+t.value.part].push(this.deltaTimeToByteArray(i-d[p]).concat(176|p,100,0),[0,176|p,101,0],[0,176|p,6,2*t.value.value]);break;case"MasterCoarseTuning":y[p=4*c+t.value.part].push(this.deltaTimeToByteArray(i-d[p]).concat(176|p,100,0),[0,176|p,101,2],[0,176|p,6,2*t.value.value]);break;default:continue}d[p]=t.time}}return 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r.FL("CopyrightNotice",s,p,[String.fromCharCode.apply(null,a.subarray(o,o+=f))]);break;case 3:t=new r.FL("SequenceTrackName",s,p,[String.fromCharCode.apply(null,a.subarray(o,o+=f))]);break;case 4:t=new r.FL("InstrumentName",s,p,[String.fromCharCode.apply(null,a.subarray(o,o+=f))]);break;case 5:t=new r.FL("Lyrics",s,p,[String.fromCharCode.apply(null,a.subarray(o,o+=f))]);break;case 6:t=new r.FL("Marker",s,p,[String.fromCharCode.apply(null,a.subarray(o,o+=f))]);break;case 7:t=new r.FL("CuePoint",s,p,[String.fromCharCode.apply(null,a.subarray(o,o+=f))]);break;case 32:t=new r.FL("MidiChannelPrefix",s,p,[a[o++]]);break;case 47:t=new r.FL("EndOfTrack",s,p,[]);break;case 81:t=new r.FL("SetTempo",s,p,[a[o++]<<16|a[o++]<<8|a[o++]]);break;case 84:t=new r.FL("SmpteOffset",s,p,[a[o++],a[o++],a[o++],a[o++],a[o++]]);break;case 88:t=new r.FL("TimeSignature",s,p,[a[o++],a[o++],a[o++],a[o++]]);break;case 89:t=new r.FL("KeySignature",s,p,[a[o++],a[o++]]);break;case 127:t=new 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