/*! @name @videojs/vhs-utils @version 3.0.0 @license MIT */ !function(r,e){"object"==typeof exports&&"undefined"!=typeof module?module.exports=e(require("global/window")):"function"==typeof define&&define.amd?define(["global/window"],e):(r="undefined"!=typeof globalThis?globalThis:r||self).vhsUtils=e(r.window)}(this,(function(r){"use strict";function e(r){return r&&"object"==typeof r&&"default"in r?r:{default:r}}var t,n,o=e(r),a={mp4:/^(av0?1|avc0?[1234]|vp0?9|flac|opus|mp3|mp4a|mp4v|stpp.ttml.im1t)/,webm:/^(vp0?[89]|av0?1|opus|vorbis)/,ogg:/^(vp0?[89]|theora|flac|opus|vorbis)/,video:/^(av0?1|avc0?[1234]|vp0?[89]|hvc1|hev1|theora|mp4v)/,audio:/^(mp4a|flac|vorbis|opus|ac-[34]|ec-3|alac|mp3|speex|aac)/,text:/^(stpp.ttml.im1t)/,muxerVideo:/^(avc0?1)/,muxerAudio:/^(mp4a)/,muxerText:/a^/},i=["video","audio","text"],u=["Video","Audio","Text"],f=function(r){return r?r.replace(/avc1\.(\d+)\.(\d+)/i,(function(r,e,t){return"avc1."+("00"+Number(e).toString(16)).slice(-2)+"00"+("00"+Number(t).toString(16)).slice(-2)})):r},s=function(r){return r.map(f)},c=function(r){void 0===r&&(r="");var e=r.split(","),t=[];return e.forEach((function(r){var e;r=r.trim(),i.forEach((function(n){var o=a[n].exec(r.toLowerCase());if(o&&!(o.length<=1)){e=n;var i=r.substring(0,o[1].length),u=r.replace(i,"");t.push({type:i,details:u,mediaType:n})}})),e||t.push({type:r,details:"",mediaType:"unknown"})})),t},l=function(r){return void 0===r&&(r=""),a.audio.test(r.trim().toLowerCase())},p=function(r){return void 0===r&&(r=""),a.text.test(r.trim().toLowerCase())},h=function(r){if(r&&"string"==typeof r){var e=r.toLowerCase().split(",").map((function(r){return f(r.trim())})),t="video";1===e.length&&l(e[0])?t="audio":1===e.length&&p(e[0])&&(t="application");var n="mp4";return e.every((function(r){return a.mp4.test(r)}))?n="mp4":e.every((function(r){return a.webm.test(r)}))?n="webm":e.every((function(r){return a.ogg.test(r)}))&&(n="ogg"),t+"/"+n+';codecs="'+r+'"'}},v=Object.freeze({__proto__:null,translateLegacyCodec:f,translateLegacyCodecs:s,mapLegacyAvcCodecs:function(r){return r.replace(/avc1\.(\d+)\.(\d+)/i,(function(r){return s([r])[0]}))},parseCodecs:c,codecsFromDefault:function(r,e){if(!r.mediaGroups.AUDIO||!e)return null;var t=r.mediaGroups.AUDIO[e];if(!t)return null;for(var n in t){var o=t[n];if(o.default&&o.playlists)return c(o.playlists[0].attributes.CODECS)}return null},isVideoCodec:function(r){return void 0===r&&(r=""),a.video.test(r.trim().toLowerCase())},isAudioCodec:l,isTextCodec:p,getMimeForCodec:h,browserSupportsCodec:function(r){return void 0===r&&(r=""),o.default.MediaSource&&o.default.MediaSource.isTypeSupported&&o.default.MediaSource.isTypeSupported(h(r))||!1},muxerSupportsCodec:function(r){return void 0===r&&(r=""),r.toLowerCase().split(",").every((function(r){r=r.trim();for(var e=0;es&&(f-=s,f-=s,f-=A(2))}return Number(f)},C=function(r,e){var t=(void 0===e?{}:e).le,n=void 0!==t&&t;("bigint"!=typeof r&&"number"!=typeof r||"number"==typeof r&&r!=r)&&(r=0),r=A(r);for(var o=g(r),a=new Uint8Array(new ArrayBuffer(o)),i=0;i=e.length&&f.call(e,(function(e,t){return e===(u[t]?u[t]&r[a+t]:r[a+t])}))},k=Object.freeze({__proto__:null,countBits:y,countBytes:g,padStart:d,isTypedArray:m,toUint8:b,toHexString:function(r){r=b(r);for(var e="",t=0;t>>0,u=e.subarray(a+4,a+8);if(0===i)break;var f=a+i;if(f>e.length){if(n)break;f=e.length}var s=e.subarray(a+8,f);E(u,t[0])&&(1===t.length?o.push(s):o.push.apply(o,r(s,t.slice(1),n))),a=f}return o},D={EBML:b([26,69,223,163]),DocType:b([66,130]),Segment:b([24,83,128,103]),SegmentInfo:b([21,73,169,102]),Tracks:b([22,84,174,107]),Track:b([174]),TrackNumber:b([215]),DefaultDuration:b([35,227,131]),TrackEntry:b([174]),TrackType:b([131]),FlagDefault:b([136]),CodecID:b([134]),CodecPrivate:b([99,162]),VideoTrack:b([224]),AudioTrack:b([225]),Cluster:b([31,67,182,117]),Timestamp:b([231]),TimestampScale:b([42,215,177]),BlockGroup:b([160]),BlockDuration:b([155]),Block:b([161]),SimpleBlock:b([163])},I=[128,64,32,16,8,4,2,1],N=function(r,e,t,n){void 0===t&&(t=!0),void 0===n&&(n=!1);var o=function(r){for(var e=1,t=0;t=t.length)return t.length;var o=N(t,n,!1);if(E(e.bytes,o.bytes))return n;var a=N(t,n+o.length);return r(e,t,n+a.length+a.value+o.length)},z=function r(e,t){t=function(r){return Array.isArray(r)?r.map((function(r){return O(r)})):[O(r)]}(t),e=b(e);var n=[];if(!t.length)return n;for(var o=0;oe.length?e.length:u+i.value,s=e.subarray(u,f);E(t[0],a.bytes)&&(1===t.length?n.push(s):n=n.concat(r(s,t.slice(1)))),o+=a.length+i.length+s.length}return n},M=b([73,68,51]),F=function r(e,t){return void 0===t&&(t=0),(e=b(e)).length-t<10||!E(e,M,{offset:t})?t:(t+=function(r,e){void 0===e&&(e=0);var t=(r=b(r))[e+5],n=r[e+6]<<21|r[e+7]<<14|r[e+8]<<7|r[e+9];return(16&t)>>4?n+20:n+10}(e,t),r(e,t))},j=b([0,0,0,1]),q=b([0,0,1]),P=b([0,0,3]),G=function(r){for(var e=[],t=1;t>1&63),-1!==t.indexOf(f)&&(o=a+u),a+=u+("h264"===e?1:2)}else a++}return r.subarray(0,0)},H={webm:b([119,101,98,109]),matroska:b([109,97,116,114,111,115,107,97]),flac:b([102,76,97,67]),ogg:b([79,103,103,83]),ac3:b([11,119]),riff:b([82,73,70,70]),avi:b([65,86,73]),wav:b([87,65,86,69]),"3gp":b([102,116,121,112,51,103]),mp4:b([102,116,121,112]),fmp4:b([115,116,121,112]),mov:b([102,116,121,112,113,116])},$={aac:function(r){var e=F(r);return E(r,[255,16],{offset:e,mask:[255,22]})},mp3:function(r){var e=F(r);return E(r,[255,2],{offset:e,mask:[255,6]})},webm:function(r){var e=z(r,[D.EBML,D.DocType])[0];return E(e,H.webm)},mkv:function(r){var e=z(r,[D.EBML,D.DocType])[0];return E(e,H.matroska)},mp4:function(r){return!$["3gp"](r)&&!$.mov(r)&&(E(r,H.mp4,{offset:4})||E(r,H.fmp4,{offset:4}))},mov:function(r){return E(r,H.mov,{offset:4})},"3gp":function(r){return E(r,H["3gp"],{offset:4})},ac3:function(r){var e=F(r);return E(r,H.ac3,{offset:e})},ts:function(r){if(r.length<189&&r.length>=1)return 71===r[0];for(var e=0;e+1880}});var Q=Object.freeze({__proto__:null,forEachMediaGroup:function(r,e,t){e.forEach((function(e){for(var n in r.mediaGroups[e])for(var o in r.mediaGroups[e][n]){var a=r.mediaGroups[e][n][o];t(a,e,n,o)}}))}});var W=function(r,e,t){return r(t={path:e,exports:{},require:function(r,e){return function(){throw new Error("Dynamic requires are not currently supported by @rollup/plugin-commonjs")}(null==e&&t.path)}},t.exports),t.exports}((function(r,e){var t,n,o,a,i;t=/^((?:[a-zA-Z0-9+\-.]+:)?)(\/\/[^\/?#]*)?((?:[^\/?#]*\/)*[^;?#]*)?(;[^?#]*)?(\?[^#]*)?(#.*)?$/,n=/^([^\/?#]*)(.*)$/,o=/(?:\/|^)\.(?=\/)/g,a=/(?:\/|^)\.\.\/(?!\.\.\/)[^\/]*(?=\/)/g,i={buildAbsoluteURL:function(r,e,t){if(t=t||{},r=r.trim(),!(e=e.trim())){if(!t.alwaysNormalize)return r;var o=i.parseURL(r);if(!o)throw new Error("Error trying to parse base URL.");return o.path=i.normalizePath(o.path),i.buildURLFromParts(o)}var a=i.parseURL(e);if(!a)throw new Error("Error trying to parse relative URL.");if(a.scheme)return t.alwaysNormalize?(a.path=i.normalizePath(a.path),i.buildURLFromParts(a)):e;var u=i.parseURL(r);if(!u)throw new Error("Error trying to parse base URL.");if(!u.netLoc&&u.path&&"/"!==u.path[0]){var f=n.exec(u.path);u.netLoc=f[1],u.path=f[2]}u.netLoc&&!u.path&&(u.path="/");var s={scheme:u.scheme,netLoc:a.netLoc,path:null,params:a.params,query:a.query,fragment:a.fragment};if(!a.netLoc&&(s.netLoc=u.netLoc,"/"!==a.path[0]))if(a.path){var c=u.path,l=c.substring(0,c.lastIndexOf("/")+1)+a.path;s.path=i.normalizePath(l)}else s.path=u.path,a.params||(s.params=u.params,a.query||(s.query=u.query));return null===s.path&&(s.path=t.alwaysNormalize?i.normalizePath(a.path):a.path),i.buildURLFromParts(s)},parseURL:function(r){var e=t.exec(r);return e?{scheme:e[1]||"",netLoc:e[2]||"",path:e[3]||"",params:e[4]||"",query:e[5]||"",fragment:e[6]||""}:null},normalizePath:function(r){for(r=r.split("").reverse().join("").replace(o,"");r.length!==(r=r.replace(a,"")).length;);return r.split("").reverse().join("")},buildURLFromParts:function(r){return r.scheme+r.netLoc+r.path+r.params+r.query+r.fragment}},r.exports=i}));return{codecs:v,byteHelpers:k,containers:K,decodeB64ToUint8Array:function(r){for(var e,t=(e=r,o.default.atob?o.default.atob(e):Buffer.from(e,"base64").toString("binary")),n=new Uint8Array(t.length),a=0;a-1},e.trigger=function(r){var e=this.listeners[r];if(e)if(2===arguments.length)for(var t=e.length,n=0;n