rpiRadio/ProjectNow/NodeServer/node_modules/midi-player-ts/browser/midiplayer.min.js

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t>>>=0,e||E(t,4,this.length),P.read(this,t,!1,23,4)},i.prototype.readDoubleLE=function(t,e){return t>>>=0,e||E(t,8,this.length),P.read(this,t,!0,52,8)},i.prototype.readDoubleBE=function(t,e){return t>>>=0,e||E(t,8,this.length),P.read(this,t,!1,52,8)},i.prototype.writeUIntLE=function(t,e,r,n){if(t=+t,e>>>=0,r>>>=0,!n){T(this,t,e,r,Math.pow(2,8*r)-1,0)}var i=1,s=0;for(this[e]=255&t;++s<r&&(i*=256);)this[e+s]=t/i&255;return e+r},i.prototype.writeUIntBE=function(t,e,r,n){if(t=+t,e>>>=0,r>>>=0,!n){T(this,t,e,r,Math.pow(2,8*r)-1,0)}var i=r-1,s=1;for(this[e+i]=255&t;--i>=0&&(s*=256);)this[e+i]=t/s&255;return e+r},i.prototype.writeUInt8=function(t,e,r){return t=+t,e>>>=0,r||T(this,t,e,1,255,0),this[e]=255&t,e+1},i.prototype.writeUInt16LE=function(t,e,r){return t=+t,e>>>=0,r||T(this,t,e,2,65535,0),this[e]=255&t,this[e+1]=t>>>8,e+2},i.prototype.writeUInt16BE=function(t,e,r){return t=+t,e>>>=0,r||T(this,t,e,2,65535,0),this[e]=t>>>8,this[e+1]=255&t,e+2},i.prototype.writeUInt32LE=function(t,e,r){return t=+t,e>>>=0,r||T(this,t,e,4,4294967295,0),this[e+3]=t>>>24,this[e+2]=t>>>16,this[e+1]=t>>>8,this[e]=255&t,e+4},i.prototype.writeUInt32BE=function(t,e,r){return t=+t,e>>>=0,r||T(this,t,e,4,4294967295,0),this[e]=t>>>24,this[e+1]=t>>>16,this[e+2]=t>>>8,this[e+3]=255&t,e+4},i.prototype.writeIntLE=function(t,e,r,n){if(t=+t,e>>>=0,!n){var i=Math.pow(2,8*r-1);T(this,t,e,r,i-1,-i)}var s=0,o=1,a=0;for(this[e]=255&t;++s<r&&(o*=256);)t<0&&0===a&&0!==this[e+s-1]&&(a=1),this[e+s]=(t/o>>0)-a&255;return e+r},i.prototype.writeIntBE=function(t,e,r,n){if(t=+t,e>>>=0,!n){var i=Math.pow(2,8*r-1);T(this,t,e,r,i-1,-i)}var s=r-1,o=1,a=0;for(this[e+s]=255&t;--s>=0&&(o*=256);)t<0&&0===a&&0!==this[e+s+1]&&(a=1),this[e+s]=(t/o>>0)-a&255;return e+r},i.prototype.writeInt8=function(t,e,r){return t=+t,e>>>=0,r||T(this,t,e,1,127,-128),t<0&&(t=255+t+1),this[e]=255&t,e+1},i.prototype.writeInt16LE=function(t,e,r){return t=+t,e>>>=0,r||T(this,t,e,2,32767,-32768),this[e]=255&t,this[e+1]=t>>>8,e+2},i.prototype.writeInt16BE=function(t,e,r){return t=+t,e>>>=0,r||T(this,t,e,2,32767,-32768),this[e]=t>>>8,this[e+1]=255&t,e+2},i.prototype.writeInt32LE=function(t,e,r){return t=+t,e>>>=0,r||T(this,t,e,4,2147483647,-2147483648),this[e]=255&t,this[e+1]=t>>>8,this[e+2]=t>>>16,this[e+3]=t>>>24,e+4},i.prototype.writeInt32BE=function(t,e,r){return t=+t,e>>>=0,r||T(this,t,e,4,2147483647,-2147483648),t<0&&(t=4294967295+t+1),this[e]=t>>>24,this[e+1]=t>>>16,this[e+2]=t>>>8,this[e+3]=255&t,e+4},i.prototype.writeFloatLE=function(t,e,r){return I(this,t,e,!0,r)},i.prototype.writeFloatBE=function(t,e,r){return I(this,t,e,!1,r)},i.prototype.writeDoubleLE=function(t,e,r){return B(this,t,e,!0,r)},i.prototype.writeDoubleBE=function(t,e,r){return B(this,t,e,!1,r)},i.prototype.copy=function(t,e,r,n){if(r||(r=0),n||0===n||(n=this.length),e>=t.length&&(e=t.length),e||(e=0),n>0&&n<r&&(n=r),n===r)return 0;if(0===t.length||0===this.length)return 0;if(e<0)throw new RangeError("targetStart out of bounds");if(r<0||r>=this.length)throw new RangeError("sourceStart out of bounds");if(n<0)throw new RangeError("sourceEnd out of bounds");n>this.length&&(n=this.length),t.length-e<n-r&&(n=t.length-e+r);var i,s=n-r;if(this===t&&r<e&&e<n)for(i=s-1;i>=0;--i)t[i+e]=this[i+r];else if(s<1e3)for(i=0;i<s;++i)t[i+e]=this[i+r];else Uint8Array.prototype.set.call(t,this.subarray(r,r+s),e);return s},i.prototype.fill=function(t,e,r,n){if("string"==typeof t){if("string"==typeof e?(n=e,e=0,r=this.length):"string"==typeof r&&(n=r,r=this.length),1===t.length){var s=t.charCodeAt(0);s<256&&(t=s)}if(void 0!==n&&"string"!=typeof n)throw new TypeError("encoding must be a string");if("string"==typeof n&&!i.isEncoding(n))throw new TypeError("Unknown encoding: "+n)}else"number"==typeof t&&(t&=255);if(e<0||this.length<e||this.length<r)throw new RangeError("Out of range index");if(r<=e)return this;e>>>=0,r=void 0===r?this.length:r>>>0,t||(t=0);var o;if("number"==typeof t)for(o=e;o<r;++o)this[o]=t;else{var a=i.isBuffer(t)?t:new i(t,n),u=a.length;for(o=0;o<r-e;++o)this[o+e]=a[o%u]}return this};var O=/[^+/0-9A-Za-z-_]/g},{"base64-js":1,ieee754:3}],3:[function(t,e,r){r.read=function(t,e,r,n,i){var s,o,a=8*i-n-1,u=(1<<a)-1,h=u>>1,f=-7,c=r?i-1:0,l=r?-1:1,p=t[e+c];for(c+=l,s=p&(1<<-f)-1,p>>=-f,f+=a;f>0;s=256*s+t[e+c],c+=l,f-=8);for(o=s&(1<<-f)-1,s>>=-f,f+=n;f>0;o=256*o+t[e+c],c+=l,f-=8);if(0===s)s=1-h;else{if(s===u)return o?NaN:1/0*(p?-1:1);o+=Math.pow(2,n),s-=h}return(p?-1:1)*o*Math.pow(2,s-n)},r.write=function(t,e,r,n,i,s){var o,a,u,h=8*s-i-1,f=(1<<h)-1,c=f>>1,l=23===i?Math.pow(2,-24)-Math.pow(2,-77):0,p=n?0:s-1,y=n?1:-1,g=e<0||0===e&&1/e<0?1:0;for(e=Math.abs(e),isNaN(e)||e===1/0?(a=isNaN(e)?1:0,o=f):(o=Math.floor(Math.log(e)/Math.LN2),e*(u=Math.pow(2,-o))<1&&(o--,u*=2),(e+=o+c>=1?l/u:l*Math.pow(2,1-c))*u>=2&&(o++,u/=2),o+c>=f?(a=0,o=f):o+c>=1?(a=(e*u-1)*Math.pow(2,i),o+=c):(a=e*Math.pow(2,c-1)*Math.pow(2,i),o=0));i>=8;t[r+p]=255&a,p+=y,a/=256,i-=8);for(o=o<<i|a,h+=i;h>0;t[r+p]=255&o,p+=y,o/=256,h-=8);t[r+p-y]|=128*g}},{}],4:[function(t,e,r){"use strict";var n={VERSION:"2.0.1",NOTES:[]};!function(){for(var t=[["C"],["C#","Db"],["D"],["D#","Eb"],["E"],["F"],["F#","Gb"],["G"],["G#","Ab"],["A"],["A#","Bb"],["B"]],e=0,r=function(r){t.forEach(function(t){t.forEach(function(t){return n.NOTES[e]=t+r}),e++})},i=-1;i<=9;i++)r(i)}(),r.Constants=n},{}],5:[function(t,e,r){"use strict";var n=t("./player"),i=t("./utils"),s=t("./constants");e.exports={Player:n.Player,Utils:i.Utils,Constants:s.Constants}},{"./constants":4,"./player":6,"./utils":8}],6:[function(t,e,r){"use strict";var n="function"==typeof Symbol&&"symbol"==typeof Symbol.iterator?function(t){return typeof t}:function(t){return t&&"function"==typeof Symbol&&t.constructor===Symbol&&t!==Symbol.prototype?"symbol":typeof t},i=function(){function t(t,e){for(var r=0;r<e.length;r++){var n=e[r];n.enumerable=n.enumerable||!1,n.configurable=!0,"value"in n&&(n.writable=!0),Object.defineProperty(t,n.key,n)}}return function(e,r,n){return r&&t(e.prototype,r),n&&t(e,n),e}}(),s=t("./utils").Utils,o=t("./track").Track;Uint8Array.prototype.forEach||Object.defineProperty(Uint8Array.prototype,"forEach",{value:Array.prototype.forEach});var a=function(){function e(t,r){!function(t,e){if(!(t instanceof e))throw new TypeError("Cannot call a class as a function")}(this,e),this.sampleRate=5,this.startTime=0,this.buffer=r||null,this.division,this.format,this.setIntervalId=!1,this.tracks=[],this.instruments=[],this.defaultTempo=120,this.tempo=null,this.startTick=0,this.tick=0,this.lastTick=null,this.inLoop=!1,this.totalTicks=0,this.events=[],this.totalEvents=0,this.eventListeners={},"function"==typeof t&&this.on("midiEvent",t)}return i(e,[{key:"loadFile",value:function(e){var r=t("fs");return this.buffer=r.readFileSync(e),this.fileLoaded()}},{key:"loadArrayBuffer",value:function(t){return this.buffer=new Uint8Array(t),this.fileLoaded()}},{key:"loadDataUri",value:function(t){for(var e=s.atob(t.split(",")[1]),r=new Uint8Array(e.length),n=0;n<e.length;n++)r[n]=e.charCodeAt(n);return this.buffer=r,this.fileLoaded()}},{key:"getFilesize",value:function(){return this.buffer?this.buffer.length:0}},{key:"fileLoaded",value:function(){if(!this.validate())throw"Invalid MIDI file; should start with MThd";return this.setTempo(this.defaultTempo).getDivision().getFormat().getTracks().dryRun()}},{key:"validate",value:function(){return"MThd"===s.bytesToLetters(this.buffer.subarray(0,4))}},{key:"getFormat",value:function(){return this.format=s.bytesToNumber(this.buffer.subarray(8,10)),this}},{key:"getTracks",value:function(){this.tracks=[];for(var t=0;t<this.buffer.length;){if("MTrk"==s.bytesToLetters(this.buffer.subarray(t,t+4))){var e=s.bytesToNumber(this.buffer.subarray(t+4,t+8));this.tracks.push(new o(this.tracks.length,this.buffer.subarray(t+8,t+8+e)))}t+=s.bytesToNumber(this.buffer.subarray(t+4,t+8))+8}return this}},{key:"enableTrack",value:function(t){return this.tracks[t-1].enable(),this}},{key:"disableTrack",value:function(t){return this.tracks[t-1].disable(),this}},{key:"getDivision",value:function(){return this.division=s.bytesToNumber(this.buffer.subarray(12,14)),this}},{key:"playLoop",value:function(t){this.inLoop||(this.inLoop=!0,this.tick=this.getCurrentTick(),this.tracks.forEach(function(e){if(!t&&this.endOfFile())this.triggerPlayerEvent("endOfFile"),this.stop();else{var r=e.handleEvent(this.tick,t);t&&r?(r.hasOwnProperty("name")&&"Set Tempo"===r.name&&this.setTempo(r.data),r.hasOwnProperty("name")&&"Program Change"===r.name&&(this.instruments.includes(r.value)||this.instruments.push(r.value))):r&&this.emitEvent(r)}},this),t||this.triggerPlayerEvent("playing",{tick:this.tick}),this.inLoop=!1)}},{key:"setTempo",value:function(t){return this.tempo=t,this}},{key:"setStartTime",value:function(t){this.startTime=t}},{key:"play",value:function(){if(this.isPlaying())throw"Already playing...";return this.startTime||(this.startTime=(new Date).getTime()),this.setIntervalId=setInterval(this.playLoop.bind(this),this.sampleRate),this}},{key:"pause",value:function(){return clearInterval(this.setIntervalId),this.setIntervalId=!1,this.startTick=this.tick,this.startTime=0,this}},{key:"stop",value:function(){return clearInterval(this.setIntervalId),this.setIntervalId=!1,this.startTick=0,this.startTime=0,this.resetTracks(),this}},{key:"skipToTick",value:function(t){return this.stop(),this.startTick=t,this.tracks.forEach(function(e){e.setEventIndexByTick(t)}),this}},{key:"skipToPercent",value:function(t){if(t<0||t>100)throw"Percent must be number between 1 and 100.";return this.skipToTick(Math.round(t/100*this.totalTicks)),this}},{key:"skipToSeconds",value:function(t){var e=this.getSongTime();if(t<0||t>e)throw t+" seconds not within song time of "+e;return this.skipToPercent(t/e*100),this}},{key:"isPlaying",value:function(){return this.setIntervalId>0||"object"===n(this.setIntervalId)}},{key:"dryRun",value:function(){for(this.resetTracks();!this.endOfFile();)this.playLoop(!0);return this.events=this.getEvents(),this.totalEvents=this.getTotalEvents(),this.totalTicks=this.getTotalTicks(),this.startTick=0,this.startTime=0,this.resetTracks(),this.triggerPlayerEvent("fileLoaded",this),this}},{key:"resetTracks",value:function(){return this.tracks.forEach(function(t){return t.reset()}),this}},{key:"getEvents",value:function(){return this.tracks.map(function(t){return t.events})}},{key:"getTotalTicks",value:function(){return Math.max.apply(null,this.tracks.map(function(t){return t.delta}))}},{key:"getTotalEvents",value:function(){return this.tracks.reduce(function(t,e){return{events:{length:t.events.length+e.events.length}}},{events:{length:0}}).events.length}},{key:"getSongTime",value:function(){return this.totalTicks/this.division/this.tempo*60}},{key:"getSongTimeRemaining",value:function(){return Math.round((this.totalTicks-this.tick)/this.division/this.tempo*60)}},{key:"getSongPercentRemaining",value:function(){return Math.round(this.getSongTimeRemaining()/this.getSongTime()*100)}},{key:"bytesProcessed",value:function(){return 14+8*this.tracks.length+this.tracks.reduce(function(t,e){return{pointer:t.pointer+e.pointer}},{pointer:0}).pointer}},{key:"eventsPlayed",value:function(){return this.tracks.reduce(function(t,e){return{eventIndex:t.eventIndex+e.eventIndex}},{eventIndex:0}).eventIndex}},{key:"endOfFile",value:function(){return this.isPlaying()?this.eventsPlayed()==this.totalEvents:this.bytesProcessed()==this.buffer.length}},{key:"getCurrentTick",value:function(){return Math.round(((new Date).getTime()-this.startTime)/1e3*(this.division*(this.tempo/60)))+this.startTick}},{key:"emitEvent",value:function(t){return this.triggerPlayerEvent("midiEvent",t),this}},{key:"on",value:function(t,e){return this.eventListeners.hasOwnProperty(t)||(this.eventListeners[t]=[]),this.eventListeners[t].push(e),this}},{key:"triggerPlayerEvent",value:function(t,e){return this.eventListeners.hasOwnProperty(t)&&this.eventListeners[t].forEach(function(t){return t(e||{})}),this}}]),e}();r.Player=a},{"./track":7,"./utils":8,fs:"fs"}],7:[function(t,e,r){"use strict";var n=function(){function t(t,e){for(var r=0;r<e.length;r++){var n=e[r];n.enumerable=n.enumerable||!1,n.configurable=!0,"value"in n&&(n.writable=!0),Object.defineProperty(t,n.key,n)}}return function(e,r,n){return r&&t(e.prototype,r),n&&t(e,n),e}}(),i=t("./constants").Constants,s=t("./utils").Utils,o=function(){function t(e,r){!function(t,e){if(!(t instanceof e))throw new TypeError("Cannot call a class as a function")}(this,t),this.enabled=!0,this.eventIndex=0,this.pointer=0,this.lastTick=0,this.lastStatus=null,this.index=e,this.data=r,this.delta=0,this.runningDelta=0,this.events=[]}return n(t,[{key:"reset",value:function(){return this.enabled=!0,this.eventIndex=0,this.pointer=0,this.lastTick=0,this.lastStatus=null,this.delta=0,this.runningDelta=0,this}},{key:"enable",value:function(){return this.enabled=!0,this}},{key:"disable",value:function(){return this.enabled=!1,this}},{key:"setEventIndexByTick",value:function(t){t=t||0;for(var e in this.events)if(this.events[e].tick>=t)return this.eventIndex=e,this}},{key:"getCurrentByte",value:function(){return this.data[this.pointer]}},{key:"getDeltaByteCount",value:function(){for(var t=this.getCurrentByte(),e=1;t>=128;)t=this.data[this.pointer+e],e++;return e}},{key:"getDelta",value:function(){return s.readVarInt(this.data.subarray(this.pointer,this.pointer+this.getDeltaByteCount()))}},{key:"handleEvent",value:function(t,e){if(e=e||!1){var r=t-this.lastTick>=this.getDelta();if(this.pointer<this.data.length&&(e||r)){var n=this.parseEvent();if(this.enabled)return n}}else if(this.events[this.eventIndex]&&this.events[this.eventIndex].tick<=t&&(this.eventIndex++,this.enabled))return this.events[this.eventIndex-1];return null}},{key:"getStringData",value:function(t){this.pointer;var e=s.readVarInt(this.data.subarray(t+2,t+2+1));return s.bytesToLetters(this.data.subarray(t+1+2,t+1+e+2))}},{key:"parseEvent",value:function(){var t=this.pointer+this.getDeltaByteCount(),e={},r=this.getDeltaByteCount();if(e.track=this.index+1,e.delta=this.getDelta(),this.lastTick=this.lastTick+e.delta,this.runningDelta+=e.delta,e.tick=this.runningDelta,e.byteIndex=this.pointer,255==this.data[t]){switch(this.data[t+1]){case 0:e.name="Sequence Number";break;case 1:e.name="Text Event",e.string=this.getStringData(t);break;case 2:e.name="Copyright Notice";break;case 3:e.name="Sequence/Track Name",e.string=this.getStringData(t);break;case 4:e.name="Instrument Name",e.string=this.getStringData(t);break;case 5:e.name="Lyric",e.string=this.getStringData(t);break;case 6:e.name="Marker";break;case 7:e.name="Cue Point",e.string=this.getStringData(t);break;case 9:e.name="Device Name",e.string=this.getStringData(t);break;case 32:e.name="MIDI Channel Prefix";break;case 33:e.name="MIDI Port",e.data=s.bytesToNumber([this.data[t+3]]);break;case 47:e.name="End of Track";break;case 81:e.name="Set Tempo",e.data=Math.round(6e7/s.bytesToNumber(this.data.subarray(t+3,t+6))),this.tempo=e.data;break;case 84:e.name="SMTPE Offset";break;case 88:e.name="Time Signature";break;case 89:e.name="Key Signature";break;case 127:e.name="Sequencer-Specific Meta-event";break;default:e.name="Unknown: "+this.data[t+1].toString(16)}n=this.data[this.pointer+r+2];this.pointer+=r+3+n}else if(240==this.data[t]){e.name="Sysex";var n=this.data[this.pointer+r+1];this.pointer+=r+2+n}else this.data[t]<128?(e.running=!0,e.noteNumber=this.data[t],e.noteName=i.NOTES[this.data[t]],e.velocity=this.data[t+1],this.lastStatus<=143?(e.name="Note off",e.channel=this.lastStatus-128+1):this.lastStatus<=159&&(e.name="Note on",e.channel=this.lastStatus-144+1),this.pointer+=r+2):(this.lastStatus=this.data[t],this.data[t]<=143?(e.name="Note off",e.channel=this.lastStatus-128+1,e.noteNumber=this.data[t+1],e.noteName=i.NOTES[this.data[t+1]],e.velocity=Math.round(this.data[t+2]/127*100),this.pointer+=r+3):this.data[t]<=159?(e.name="Note on",e.channel=this.lastStatus-144+1,e.noteNumber=this.data[t+1],e.noteName=i.NOTES[this.data[t+1]],e.velocity=Math.round(this.data[t+2]/127*100),this.pointer+=r+3):this.data[t]<=175?(e.name="Polyphonic Key Pressure",e.channel=this.lastStatus-160+1,e.note=i.NOTES[this.data[t+1]],e.pressure=event[2],this.pointer+=r+3):this.data[t]<=191?(e.name="Controller Change",e.channel=this.lastStatus-176+1,e.number=this.data[t+1],e.value=this.data[t+2],this.pointer+=r+3):this.data[t]<=207?(e.name="Program Change",e.channel=this.lastStatus-192+1,e.value=this.data[t+1],this.pointer+=r+2):this.data[t]<=223?(e.name="Channel Key Pressure",e.channel=this.lastStatus-208+1,this.pointer+=r+2):this.data[t]<=239?(e.name="Pitch Bend",e.channel=this.lastStatus-224+1,this.pointer+=r+3):e.name="Unknown.  Pointer: "+this.pointer.toString()+" "+t.toString()+" "+this.data.length);return this.delta+=e.delta,this.events.push(e),e}},{key:"endOfTrack",value:function(){return 255==this.data[this.pointer+1]&&47==this.data[this.pointer+2]&&0==this.data[this.pointer+3]}}]),t}();e.exports.Track=o},{"./constants":4,"./utils":8}],8:[function(t,e,r){(function(t){"use strict";var e=function(){function t(t,e){for(var r=0;r<e.length;r++){var n=e[r];n.enumerable=n.enumerable||!1,n.configurable=!0,"value"in n&&(n.writable=!0),Object.defineProperty(t,n.key,n)}}return function(e,r,n){return r&&t(e.prototype,r),n&&t(e,n),e}}(),n=function(){function r(){!function(t,e){if(!(t instanceof e))throw new TypeError("Cannot call a class as a function")}(this,r)}return e(r,null,[{key:"byteToHex",value:function(t){return("0"+t.toString(16)).slice(-2)}},{key:"bytesToHex",value:function(t){var e=[];return t.forEach(function(t){return e.push(r.byteToHex(t))}),e.join("")}},{key:"hexToNumber",value:function(t){return parseInt(t,16)}},{key:"bytesToNumber",value:function(t){return r.hexToNumber(r.bytesToHex(t))}},{key:"bytesToLetters",value:function(t){var e=[];return t.forEach(function(t){return e.push(String.fromCharCode(t))}),e.join("")}},{key:"decToBinary",value:function(t){return(t>>>0).toString(2)}},{key:"readVarInt",value:function(t){var e=0;return t.forEach(function(t){128&t?(e+=127&t,e<<=7):e+=t}),e}},{key:"atob",value:function(t){function e(e){return t.apply(this,arguments)}return e.toString=function(){return t.toString()},e}(function(e){return"function"==typeof atob?atob(e):new t(e,"base64").toString("binary")})}]),r}();r.Utils=n}).call(this,t("buffer").Buffer)},{buffer:2}]},{},[5])(5)});