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jtBaseApp
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jtBaseApp
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node_modules
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m3u8-parser
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dist
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m3u8-parser.min.js

m3u8-parser.min.js 19 KB
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  1. /*! @name m3u8-parser @version 6.0.0 @license Apache-2.0 */
    2. 

  2. !function(t,e){"object"==typeof exports&&"undefined"!=typeof module?e(exports):"function"==typeof define&&define.amd?define(["exports"],e):e((t="undefined"!=typeof globalThis?globalThis:t||self).m3u8Parser={})}(this,(function(t){"use strict";var e=function(){function t(){this.listeners={}}var e=t.prototype;return e.on=function(t,e){this.listeners[t]||(this.listeners[t]=[]),this.listeners[t].push(e)},e.off=function(t,e){if(!this.listeners[t])return!1;var i=this.listeners[t].indexOf(e);return this.listeners[t]=this.listeners[t].slice(0),this.listeners[t].splice(i,1),i>-1},e.trigger=function(t){var e=this.listeners[t];if(e)if(2===arguments.length)for(var i=e.length,r=0;r<i;++r)e[r].call(this,arguments[1]);else for(var s=Array.prototype.slice.call(arguments,1),a=e.length,n=0;n<a;++n)e[n].apply(this,s)},e.dispose=function(){this.listeners={}},e.pipe=function(t){this.on("data",(function(e){t.push(e)}))},t}();class i extends e{constructor(){super(),this.buffer=""}push(t){let e;for(this.buffer+=t,e=this.buffer.indexOf("\n");e>-1;e=this.buffer.indexOf("\n"))this.trigger("data",this.buffer.substring(0,e)),this.buffer=this.buffer.substring(e+1)}}function r(){return s=r=Object.assign||function(t){for(var e=1;e<arguments.length;e++){var i=arguments[e];for(var r in i)Object.prototype.hasOwnProperty.call(i,r)&&(t[r]=i[r])}return t},r.apply(this,arguments)}var s=r,a=s;const n=String.fromCharCode(9),o=function(t){const e=/([0-9.]*)?@?([0-9.]*)?/.exec(t||""),i={};return e[1]&&(i.length=parseInt(e[1],10)),e[2]&&(i.offset=parseInt(e[2],10)),i},u=function(t){const e={};if(!t)return e;const i=t.split(new RegExp('(?:^|,)((?:[^=]*)=(?:"[^"]*"|[^,]*))'));let r,s=i.length;for(;s--;)""!==i[s]&&(r=/([^=]*)=(.*)/.exec(i[s]).slice(1),r[0]=r[0].replace(/^\s+|\s+$/g,""),r[1]=r[1].replace(/^\s+|\s+$/g,""),r[1]=r[1].replace(/^['"](.*)['"]$/g,"$1"),e[r[0]]=r[1]);return e};class g extends e{constructor(){super(),this.customParsers=[],this.tagMappers=[]}push(t){let e,i;if(0===(t=t.trim()).length)return;if("#"!==t[0])return void this.trigger("data",{type:"uri",uri:t});this.tagMappers.reduce(((e,i)=>{const r=i(t);return r===t?e:e.concat([r])}),[t]).forEach((t=>{for(let e=0;e<this.customParsers.length;e++)if(this.customParsers[e].call(this,t))return;if(0===t.indexOf("#EXT"))if(t=t.replace("\r",""),e=/^#EXTM3U/.exec(t),e)this.trigger("data",{type:"tag",tagType:"m3u"});else{if(e=/^#EXTINF:([0-9\.]*)?,?(.*)?$/.exec(t),e)return i={type:"tag",tagType:"inf"},e[1]&&(i.duration=parseFloat(e[1])),e[2]&&(i.title=e[2]),void this.trigger("data",i);if(e=/^#EXT-X-TARGETDURATION:([0-9.]*)?/.exec(t),e)return i={type:"tag",tagType:"targetduration"},e[1]&&(i.duration=parseInt(e[1],10)),void this.trigger("data",i);if(e=/^#EXT-X-VERSION:([0-9.]*)?/.exec(t),e)return i={type:"tag",tagType:"version"},e[1]&&(i.version=parseInt(e[1],10)),void this.trigger("data",i);if(e=/^#EXT-X-MEDIA-SEQUENCE:(\-?[0-9.]*)?/.exec(t),e)return i={type:"tag",tagType:"media-sequence"},e[1]&&(i.number=parseInt(e[1],10)),void this.trigger("data",i);if(e=/^#EXT-X-DISCONTINUITY-SEQUENCE:(\-?[0-9.]*)?/.exec(t),e)return i={type:"tag",tagType:"discontinuity-sequence"},e[1]&&(i.number=parseInt(e[1],10)),void this.trigger("data",i);if(e=/^#EXT-X-PLAYLIST-TYPE:(.*)?$/.exec(t),e)return i={type:"tag",tagType:"playlist-type"},e[1]&&(i.playlistType=e[1]),void this.trigger("data",i);if(e=/^#EXT-X-BYTERANGE:(.*)?$/.exec(t),e)return i=a(o(e[1]),{type:"tag",tagType:"byterange"}),void this.trigger("data",i);if(e=/^#EXT-X-ALLOW-CACHE:(YES|NO)?/.exec(t),e)return i={type:"tag",tagType:"allow-cache"},e[1]&&(i.allowed=!/NO/.test(e[1])),void this.trigger("data",i);if(e=/^#EXT-X-MAP:(.*)$/.exec(t),e){if(i={type:"tag",tagType:"map"},e[1]){const t=u(e[1]);t.URI&&(i.uri=t.URI),t.BYTERANGE&&(i.byterange=o(t.BYTERANGE))}this.trigger("data",i)}else if(e=/^#EXT-X-STREAM-INF:(.*)$/.exec(t),e){if(i={type:"tag",tagType:"stream-inf"},e[1]){if(i.attributes=u(e[1]),i.attributes.RESOLUTION){const t=i.attributes.RESOLUTION.split("x"),e={};t[0]&&(e.width=parseInt(t[0],10)),t[1]&&(e.height=parseInt(t[1],10)),i.attributes.RESOLUTION=e}i.attributes.BANDWIDTH&&(i.attributes.BANDWIDTH=parseInt(i.attributes.BANDWIDTH,10)),i.attributes["FRAME-RATE"]&&(i.attributes["FRAME-RATE"]=parseFloat(i.attributes["FRAME-RATE"])),i.attributes["PROGRAM-ID"]&&(i.attributes["PROGRAM-ID"]=parseInt(i.attributes["PROGRAM-ID"],10))}this.trigger("data",i)}else{if(e=/^#EXT-X-MEDIA:(.*)$/.exec(t),e)return i={type:"tag",tagType:"media"},e[1]&&(i.attributes=u(e[1])),void this.trigger("data",i);if(e=/^#EXT-X-ENDLIST/.exec(t),e)this.trigger("data",{type:"tag",tagType:"endlist"});else if(e=/^#EXT-X-DISCONTINUITY/.exec(t),e)this.trigger("data",{type:"tag",tagType:"discontinuity"});else{if(e=/^#EXT-X-PROGRAM-DATE-TIME:(.*)$/.exec(t),e)return i={type:"tag",tagType:"program-date-time"},e[1]&&(i.dateTimeString=e[1],i.dateTimeObject=new Date(e[1])),void this.trigger("data",i);if(e=/^#EXT-X-KEY:(.*)$/.exec(t),e)return i={type:"tag",tagType:"key"},e[1]&&(i.attributes=u(e[1]),i.attributes.IV&&("0x"===i.attributes.IV.substring(0,2).toLowerCase()&&(i.attributes.IV=i.attributes.IV.substring(2)),i.attributes.IV=i.attributes.IV.match(/.{8}/g),i.attributes.IV[0]=parseInt(i.attributes.IV[0],16),i.attributes.IV[1]=parseInt(i.attributes.IV[1],16),i.attributes.IV[2]=parseInt(i.attributes.IV[2],16),i.attributes.IV[3]=parseInt(i.attributes.IV[3],16),i.attributes.IV=new Uint32Array(i.attributes.IV))),void this.trigger("data",i);if(e=/^#EXT-X-START:(.*)$/.exec(t),e)return i={type:"tag",tagType:"start"},e[1]&&(i.attributes=u(e[1]),i.attributes["TIME-OFFSET"]=parseFloat(i.attributes["TIME-OFFSET"]),i.attributes.PRECISE=/YES/.test(i.attributes.PRECISE)),void this.trigger("data",i);if(e=/^#EXT-X-CUE-OUT-CONT:(.*)?$/.exec(t),e)return i={type:"tag",tagType:"cue-out-cont"},e[1]?i.data=e[1]:i.data="",void this.trigger("data",i);if(e=/^#EXT-X-CUE-OUT:(.*)?$/.exec(t),e)return i={type:"tag",tagType:"cue-out"},e[1]?i.data=e[1]:i.data="",void this.trigger("data",i);if(e=/^#EXT-X-CUE-IN:(.*)?$/.exec(t),e)return i={type:"tag",tagType:"cue-in"},e[1]?i.data=e[1]:i.data="",void this.trigger("data",i);if(e=/^#EXT-X-SKIP:(.*)$/.exec(t),e&&e[1])return i={type:"tag",tagType:"skip"},i.attributes=u(e[1]),i.attributes.hasOwnProperty("SKIPPED-SEGMENTS")&&(i.attributes["SKIPPED-SEGMENTS"]=parseInt(i.attributes["SKIPPED-SEGMENTS"],10)),i.attributes.hasOwnProperty("RECENTLY-REMOVED-DATERANGES")&&(i.attributes["RECENTLY-REMOVED-DATERANGES"]=i.attributes["RECENTLY-REMOVED-DATERANGES"].split(n)),void this.trigger("data",i);if(e=/^#EXT-X-PART:(.*)$/.exec(t),e&&e[1])return i={type:"tag",tagType:"part"},i.attributes=u(e[1]),["DURATION"].forEach((function(t){i.attributes.hasOwnProperty(t)&&(i.attributes[t]=parseFloat(i.attributes[t]))})),["INDEPENDENT","GAP"].forEach((function(t){i.attributes.hasOwnProperty(t)&&(i.attributes[t]=/YES/.test(i.attributes[t]))})),i.attributes.hasOwnProperty("BYTERANGE")&&(i.attributes.byterange=o(i.attributes.BYTERANGE)),void this.trigger("data",i);if(e=/^#EXT-X-SERVER-CONTROL:(.*)$/.exec(t),e&&e[1])return i={type:"tag",tagType:"server-control"},i.attributes=u(e[1]),["CAN-SKIP-UNTIL","PART-HOLD-BACK","HOLD-BACK"].forEach((function(t){i.attributes.hasOwnProperty(t)&&(i.attributes[t]=parseFloat(i.attributes[t]))})),["CAN-SKIP-DATERANGES","CAN-BLOCK-RELOAD"].forEach((function(t){i.attributes.hasOwnProperty(t)&&(i.attributes[t]=/YES/.test(i.attributes[t]))})),void this.trigger("data",i);if(e=/^#EXT-X-PART-INF:(.*)$/.exec(t),e&&e[1])return i={type:"tag",tagType:"part-inf"},i.attributes=u(e[1]),["PART-TARGET"].forEach((function(t){i.attributes.hasOwnProperty(t)&&(i.attributes[t]=parseFloat(i.attributes[t]))})),void this.trigger("data",i);if(e=/^#EXT-X-PRELOAD-HINT:(.*)$/.exec(t),e&&e[1])return i={type:"tag",tagType:"preload-hint"},i.attributes=u(e[1]),["BYTERANGE-START","BYTERANGE-LENGTH"].forEach((function(t){if(i.attributes.hasOwnProperty(t)){i.attributes[t]=parseInt(i.attributes[t],10);const e="BYTERANGE-LENGTH"===t?"length":"offset";i.attributes.byterange=i.attributes.byterange||{},i.attributes.byterange[e]=i.attributes[t],delete i.attributes[t]}})),void this.trigger("data",i);if(e=/^#EXT-X-RENDITION-REPORT:(.*)$/.exec(t),e&&e[1])return i={type:"tag",tagType:"rendition-report"},i.attributes=u(e[1]),["LAST-MSN","LAST-PART"].forEach((function(t){i.attributes.hasOwnProperty(t)&&(i.attributes[t]=parseInt(i.attributes[t],10))})),void this.trigger("data",i);this.trigger("data",{type:"tag",data:t.slice(4)})}}}else this.trigger("data",{type:"comment",text:t.slice(1)})}))}addParser({expression:t,customType:e,dataParser:i,segment:r}){"function"!=typeof i&&(i=t=>t),this.customParsers.push((s=>{if(t.exec(s))return this.trigger("data",{type:"custom",data:i(s),customType:e,segment:r}),!0}))}addTagMapper({expression:t,map:e}){this.tagMappers.push((i=>t.test(i)?e(i):i))}}function p(t){for(var e,i=(e=t,window.atob?window.atob(e):Buffer.from(e,"base64").toString("binary")),r=new Uint8Array(i.length),s=0;s<i.length;s++)r[s]=i.charCodeAt(s);return r}const h=function(t){const e={};return Object.keys(t).forEach((function(i){var r;e[(r=i,r.toLowerCase().replace(/-(\w)/g,(t=>t[1].toUpperCase())))]=t[i]})),e},d=function(t){const{serverControl:e,targetDuration:i,partTargetDuration:r}=t;if(!e)return;const s="#EXT-X-SERVER-CONTROL",a="holdBack",n="partHoldBack",o=i&&3*i,u=r&&2*r;i&&!e.hasOwnProperty(a)&&(e[a]=o,this.trigger("info",{message:`${s} defaulting HOLD-BACK to targetDuration * 3 (${o}).`})),o&&e[a]<o&&(this.trigger("warn",{message:`${s} clamping HOLD-BACK (${e[a]}) to targetDuration * 3 (${o})`}),e[a]=o),r&&!e.hasOwnProperty(n)&&(e[n]=3*r,this.trigger("info",{message:`${s} defaulting PART-HOLD-BACK to partTargetDuration * 3 (${e[n]}).`})),r&&e[n]<u&&(this.trigger("warn",{message:`${s} clamping PART-HOLD-BACK (${e[n]}) to partTargetDuration * 2 (${u}).`}),e[n]=u)};t.LineStream=i,t.ParseStream=g,t.Parser=class extends e{constructor(){super(),this.lineStream=new i,this.parseStream=new g,this.lineStream.pipe(this.parseStream);const t=this,e=[];let r,s,n={},o=!1;const u=function(){},f={AUDIO:{},VIDEO:{},"CLOSED-CAPTIONS":{},SUBTITLES:{}};let c=0;this.manifest={allowCache:!0,discontinuityStarts:[],segments:[]};let E=0,l=0;this.on("end",(()=>{n.uri||!n.parts&&!n.preloadHints||(!n.map&&r&&(n.map=r),!n.key&&s&&(n.key=s),n.timeline||"number"!=typeof c||(n.timeline=c),this.manifest.preloadSegment=n)})),this.parseStream.on("data",(function(i){let g,T;({tag(){({version(){i.version&&(this.manifest.version=i.version)},"allow-cache"(){this.manifest.allowCache=i.allowed,"allowed"in i||(this.trigger("info",{message:"defaulting allowCache to YES"}),this.manifest.allowCache=!0)},byterange(){const t={};"length"in i&&(n.byterange=t,t.length=i.length,"offset"in i||(i.offset=E)),"offset"in i&&(n.byterange=t,t.offset=i.offset),E=t.offset+t.length},endlist(){this.manifest.endList=!0},inf(){"mediaSequence"in this.manifest||(this.manifest.mediaSequence=0,this.trigger("info",{message:"defaulting media sequence to zero"})),"discontinuitySequence"in this.manifest||(this.manifest.discontinuitySequence=0,this.trigger("info",{message:"defaulting discontinuity sequence to zero"})),i.duration>0&&(n.duration=i.duration),0===i.duration&&(n.duration=.01,this.trigger("info",{message:"updating zero segment duration to a small value"})),this.manifest.segments=e},key(){if(i.attributes)if("NONE"!==i.attributes.METHOD)if(i.attributes.URI){if("com.apple.streamingkeydelivery"===i.attributes.KEYFORMAT)return this.manifest.contentProtection=this.manifest.contentProtection||{},void(this.manifest.contentProtection["com.apple.fps.1_0"]={attributes:i.attributes});if("com.microsoft.playready"===i.attributes.KEYFORMAT)return this.manifest.contentProtection=this.manifest.contentProtection||{},void(this.manifest.contentProtection["com.microsoft.playready"]={uri:i.attributes.URI});if("urn:uuid:edef8ba9-79d6-4ace-a3c8-27dcd51d21ed"===i.attributes.KEYFORMAT){return-1===["SAMPLE-AES","SAMPLE-AES-CTR","SAMPLE-AES-CENC"].indexOf(i.attributes.METHOD)?void this.trigger("warn",{message:"invalid key method provided for Widevine"}):("SAMPLE-AES-CENC"===i.attributes.METHOD&&this.trigger("warn",{message:"SAMPLE-AES-CENC is deprecated, please use SAMPLE-AES-CTR instead"}),"data:text/plain;base64,"!==i.attributes.URI.substring(0,23)?void this.trigger("warn",{message:"invalid key URI provided for Widevine"}):i.attributes.KEYID&&"0x"===i.attributes.KEYID.substring(0,2)?(this.manifest.contentProtection=this.manifest.contentProtection||{},void(this.manifest.contentProtection["com.widevine.alpha"]={attributes:{schemeIdUri:i.attributes.KEYFORMAT,keyId:i.attributes.KEYID.substring(2)},pssh:p(i.attributes.URI.split(",")[1])})):void this.trigger("warn",{message:"invalid key ID provided for Widevine"}))}i.attributes.METHOD||this.trigger("warn",{message:"defaulting key method to AES-128"}),s={method:i.attributes.METHOD||"AES-128",uri:i.attributes.URI},void 0!==i.attributes.IV&&(s.iv=i.attributes.IV)}else this.trigger("warn",{message:"ignoring key declaration without URI"});else s=null;else this.trigger("warn",{message:"ignoring key declaration without attribute list"})},"media-sequence"(){isFinite(i.number)?this.manifest.mediaSequence=i.number:this.trigger("warn",{message:"ignoring invalid media sequence: "+i.number})},"discontinuity-sequence"(){isFinite(i.number)?(this.manifest.discontinuitySequence=i.number,c=i.number):this.trigger("warn",{message:"ignoring invalid discontinuity sequence: "+i.number})},"playlist-type"(){/VOD|EVENT/.test(i.playlistType)?this.manifest.playlistType=i.playlistType:this.trigger("warn",{message:"ignoring unknown playlist type: "+i.playlist})},map(){r={},i.uri&&(r.uri=i.uri),i.byterange&&(r.byterange=i.byterange),s&&(r.key=s)},"stream-inf"(){this.manifest.playlists=e,this.manifest.mediaGroups=this.manifest.mediaGroups||f,i.attributes?(n.attributes||(n.attributes={}),a(n.attributes,i.attributes)):this.trigger("warn",{message:"ignoring empty stream-inf attributes"})},media(){if(this.manifest.mediaGroups=this.manifest.mediaGroups||f,!(i.attributes&&i.attributes.TYPE&&i.attributes["GROUP-ID"]&&i.attributes.NAME))return void this.trigger("warn",{message:"ignoring incomplete or missing media group"});const t=this.manifest.mediaGroups[i.attributes.TYPE];t[i.attributes["GROUP-ID"]]=t[i.attributes["GROUP-ID"]]||{},g=t[i.attributes["GROUP-ID"]],T={default:/yes/i.test(i.attributes.DEFAULT)},T.default?T.autoselect=!0:T.autoselect=/yes/i.test(i.attributes.AUTOSELECT),i.attributes.LANGUAGE&&(T.language=i.attributes.LANGUAGE),i.attributes.URI&&(T.uri=i.attributes.URI),i.attributes["INSTREAM-ID"]&&(T.instreamId=i.attributes["INSTREAM-ID"]),i.attributes.CHARACTERISTICS&&(T.characteristics=i.attributes.CHARACTERISTICS),i.attributes.FORCED&&(T.forced=/yes/i.test(i.attributes.FORCED)),g[i.attributes.NAME]=T},discontinuity(){c+=1,n.discontinuity=!0,this.manifest.discontinuityStarts.push(e.length)},"program-date-time"(){void 0===this.manifest.dateTimeString&&(this.manifest.dateTimeString=i.dateTimeString,this.manifest.dateTimeObject=i.dateTimeObject),n.dateTimeString=i.dateTimeString,n.dateTimeObject=i.dateTimeObject},targetduration(){!isFinite(i.duration)||i.duration<0?this.trigger("warn",{message:"ignoring invalid target duration: "+i.duration}):(this.manifest.targetDuration=i.duration,d.call(this,this.manifest))},start(){i.attributes&&!isNaN(i.attributes["TIME-OFFSET"])?this.manifest.start={timeOffset:i.attributes["TIME-OFFSET"],precise:i.attributes.PRECISE}:this.trigger("warn",{message:"ignoring start declaration without appropriate attribute list"})},"cue-out"(){n.cueOut=i.data},"cue-out-cont"(){n.cueOutCont=i.data},"cue-in"(){n.cueIn=i.data},skip(){this.manifest.skip=h(i.attributes),this.warnOnMissingAttributes_("#EXT-X-SKIP",i.attributes,["SKIPPED-SEGMENTS"])},part(){o=!0;const t=this.manifest.segments.length,e=h(i.attributes);n.parts=n.parts||[],n.parts.push(e),e.byterange&&(e.byterange.hasOwnProperty("offset")||(e.byterange.offset=l),l=e.byterange.offset+e.byterange.length);const r=n.parts.length-1;this.warnOnMissingAttributes_(`#EXT-X-PART #${r} for segment #${t}`,i.attributes,["URI","DURATION"]),this.manifest.renditionReports&&this.manifest.renditionReports.forEach(((t,e)=>{t.hasOwnProperty("lastPart")||this.trigger("warn",{message:`#EXT-X-RENDITION-REPORT #${e} lacks required attribute(s): LAST-PART`})}))},"server-control"(){const t=this.manifest.serverControl=h(i.attributes);t.hasOwnProperty("canBlockReload")||(t.canBlockReload=!1,this.trigger("info",{message:"#EXT-X-SERVER-CONTROL defaulting CAN-BLOCK-RELOAD to false"})),d.call(this,this.manifest),t.canSkipDateranges&&!t.hasOwnProperty("canSkipUntil")&&this.trigger("warn",{message:"#EXT-X-SERVER-CONTROL lacks required attribute CAN-SKIP-UNTIL which is required when CAN-SKIP-DATERANGES is set"})},"preload-hint"(){const t=this.manifest.segments.length,e=h(i.attributes),r=e.type&&"PART"===e.type;n.preloadHints=n.preloadHints||[],n.preloadHints.push(e),e.byterange&&(e.byterange.hasOwnProperty("offset")||(e.byterange.offset=r?l:0,r&&(l=e.byterange.offset+e.byterange.length)));const s=n.preloadHints.length-1;if(this.warnOnMissingAttributes_(`#EXT-X-PRELOAD-HINT #${s} for segment #${t}`,i.attributes,["TYPE","URI"]),e.type)for(let i=0;i<n.preloadHints.length-1;i++){const r=n.preloadHints[i];r.type&&(r.type===e.type&&this.trigger("warn",{message:`#EXT-X-PRELOAD-HINT #${s} for segment #${t} has the same TYPE ${e.type} as preload hint #${i}`}))}},"rendition-report"(){const t=h(i.attributes);this.manifest.renditionReports=this.manifest.renditionReports||[],this.manifest.renditionReports.push(t);const e=this.manifest.renditionReports.length-1,r=["LAST-MSN","URI"];o&&r.push("LAST-PART"),this.warnOnMissingAttributes_(`#EXT-X-RENDITION-REPORT #${e}`,i.attributes,r)},"part-inf"(){this.manifest.partInf=h(i.attributes),this.warnOnMissingAttributes_("#EXT-X-PART-INF",i.attributes,["PART-TARGET"]),this.manifest.partInf.partTarget&&(this.manifest.partTargetDuration=this.manifest.partInf.partTarget),d.call(this,this.manifest)}}[i.tagType]||u).call(t)},uri(){n.uri=i.uri,e.push(n),this.manifest.targetDuration&&!("duration"in n)&&(this.trigger("warn",{message:"defaulting segment duration to the target duration"}),n.duration=this.manifest.targetDuration),s&&(n.key=s),n.timeline=c,r&&(n.map=r),l=0,n={}},comment(){},custom(){i.segment?(n.custom=n.custom||{},n.custom[i.customType]=i.data):(this.manifest.custom=this.manifest.custom||{},this.manifest.custom[i.customType]=i.data)}})[i.type].call(t)}))}warnOnMissingAttributes_(t,e,i){const r=[];i.forEach((function(t){e.hasOwnProperty(t)||r.push(t)})),r.length&&this.trigger("warn",{message:`${t} lacks required attribute(s): ${r.join(", ")}`})}push(t){this.lineStream.push(t)}end(){this.lineStream.push("\n"),this.trigger("end")}addParser(t){this.parseStream.addParser(t)}addTagMapper(t){this.parseStream.addTagMapper(t)}},Object.defineProperty(t,"__esModule",{value:!0})}));
    3.