diff --git a/.gitignore b/.gitignore
index 20490bc..aaf41d8 100644
--- a/.gitignore
+++ b/.gitignore
@@ -28,3 +28,6 @@ tests/*/_extensions
 
 # .css.map (can be generated manually from .scss file)
 _extensions/closeread/closeread.css.map
+
+# images generated for video demo
+docs/gallery/demos/videos/image*.png
diff --git a/_extensions/closeread/closeread.css b/_extensions/closeread/closeread.css
index 5092d2d..7cf8f78 100644
--- a/_extensions/closeread/closeread.css
+++ b/_extensions/closeread/closeread.css
@@ -85,6 +85,25 @@
   color: rgb(0, 0, 0);
   transition: color 0.7s linear;
 }
+.cr-section .sticky-col .sticky-col-stack .scale-to-cover,
+.cr-section .sticky-col .sticky-col-stack .sticky:has(.scale-to-cover) {
+  width: 100%;
+  height: 100%;
+}
+.cr-section .sticky-col .sticky-col-stack .scale-to-cover > p,
+.cr-section .sticky-col .sticky-col-stack .sticky:has(.scale-to-cover) > p {
+  margin: 0;
+}
+.cr-section .sticky-col .sticky-col-stack .scale-to-cover *,
+.cr-section .sticky-col .sticky-col-stack .sticky:has(.scale-to-cover) * {
+  width: 100%;
+  height: 100%;
+}
+.cr-section .sticky-col .sticky-col-stack .scale-to-cover :is(video, img, iframe), .cr-section .sticky-col .sticky-col-stack .scale-to-cover:is(video, img, iframe),
+.cr-section .sticky-col .sticky-col-stack .sticky:has(.scale-to-cover) :is(video, img, iframe),
+.cr-section .sticky-col .sticky-col-stack .sticky:has(.scale-to-cover):is(video, img, iframe) {
+  object-fit: cover;
+}
 
 /* mobile sizing (bootstrap: xs) is always overlay-center */
 @media (max-width: 575.98px) {
diff --git a/_extensions/closeread/closeread.js b/_extensions/closeread/closeread.js
index 97a6ee5..1aed8e1 100644
--- a/_extensions/closeread/closeread.js
+++ b/_extensions/closeread/closeread.js
@@ -60,7 +60,7 @@ document.addEventListener("DOMContentLoaded", () => {
   ojsProgressBlock?.define("crProgressBlock", 0);
 
   if (ojsModule === undefined) {
-    console.error("Warning: Quarto OJS module not found")
+    console.warn("Warning: Quarto OJS module not found")
   }
   
   // expand hlz option into highlight and zoom-to
@@ -70,6 +70,13 @@ document.addEventListener("DOMContentLoaded", () => {
     trigger.setAttribute('data-zoom-to', hlzValue);
     trigger.setAttribute('data-highlight', hlzValue);
   });
+
+  // initialise scrolly videos
+  let scrollyVideo = new ScrollyVideo({
+    scrollyVideoContainer: "cr-rayshader",
+    src: "rayshader.mp4",
+    trackScroll: false
+  })
     
   // collect all sticky elements
   const allStickies = Array.from(document.querySelectorAll(".sticky"));
@@ -103,6 +110,9 @@ document.addEventListener("DOMContentLoaded", () => {
   function crTriggerStepProgress(trigger) {
     ojsTriggerProgress?.define("crTriggerProgress", trigger.progress)
     ojsDirection?.define("crDirection", trigger.direction)
+    scrollyVideo.setVideoPercentage(trigger.progress, {
+      transitionSpeed: 12, easing: t => +t // linear easing
+    })
   }
   
   function crProgressStepEnter(progressBlock) {
@@ -195,6 +205,7 @@ function updateStickies(allStickies, focusedStickyName, trigger) {
   // apply additional effects
   transformSticky(focusedSticky, trigger.element);
   highlightSpans(focusedSticky, trigger.element);
+  controlVideo(focusedSticky, trigger.element);
   
   if ( // scale-to-fill only takes effect if there are no other transforms
     focusedSticky.classList.contains("scale-to-fill") &&
@@ -410,6 +421,47 @@ function scaleToFill(el, paddingX = 75, paddingY = 50) {
     `matrix(${scale}, 0, 0, ${scale}, 0, ${centerDeltaY})`)
 }
 
+//==============//
+//    Videos    //
+//==============//
+// Execute different methods on video elements such as play() and pause().
+function controlVideo(focusedSticky, triggerEl) {
+
+  console.log("Controlling video ", focusedSticky, "from trigger", triggerEl)
+
+  // get any video methods
+  const videoAttributes = Array.from(triggerEl.attributes).filter(attr => 
+    /^data-.*-video$/.test(attr.name));
+
+  // exit function if there's no video method
+  if (videoAttributes.length == 0) {
+    return;
+  }
+
+  if (videoAttributes.length > 1) {
+    console.warn(`Multiple video method are called by a single trigger. Applying only the first one, ${videoAttributes[0].name}`)
+  }
+
+  // get video element
+  const videoEl = focusedSticky.querySelector("video");
+
+  // execute method on video
+  if (videoAttributes[0].value !== "false") {
+    const attributeName = videoAttributes[0].name;
+
+    // extract method from attribute name
+    const methodName = attributeName.replace(/^data-/, "").replace(/-video$/, "");
+
+    // check if the method exists on videoEl, then call it
+    if (typeof videoEl[methodName] === "function") {
+      videoEl[methodName]();
+    } else {
+      console.log(`Method ${methodName} does not exist for a video element.`);
+    }
+  }
+}
+
+
 /* getBooleanConfig: checks for a <meta> with named attribute `cr-[metaFlag]`
    and returns true if its value is "true" or false otherwise */
 function getBooleanConfig(metaFlag) {
diff --git a/_extensions/closeread/closeread.lua b/_extensions/closeread/closeread.lua
index f263498..a4f7642 100644
--- a/_extensions/closeread/closeread.lua
+++ b/_extensions/closeread/closeread.lua
@@ -543,6 +543,12 @@ quarto.doc.add_html_dependency({
   scripts = {"closeread.js"}
 })
 
+quarto.doc.add_html_dependency({
+  name = "scrollyvideo",
+  version = "0.0.23",
+  scripts = {"scrollyvideo.js"}
+})
+
 
 --=============--
 -- Run Filters --
diff --git a/_extensions/closeread/closeread.scss b/_extensions/closeread/closeread.scss
index 7f3f138..57e98ea 100644
--- a/_extensions/closeread/closeread.scss
+++ b/_extensions/closeread/closeread.scss
@@ -140,6 +140,26 @@
           }
         }
       }
+
+      .scale-to-cover,
+      .sticky:has(.scale-to-cover) {
+        width: 100%;
+        height: 100%;
+
+        > p {
+          margin: 0;
+        }
+
+        * {
+          width: 100%;
+          height: 100%;
+        }
+
+        :is(video, img, iframe),
+        &:is(video, img, iframe) {
+          object-fit: cover;
+        }
+      }
     }
   }
 }
diff --git a/_extensions/closeread/scrollyvideo.js b/_extensions/closeread/scrollyvideo.js
new file mode 100644
index 0000000..7159808
--- /dev/null
+++ b/_extensions/closeread/scrollyvideo.js
@@ -0,0 +1,7 @@
+/**
+ * Skipped minification because the original files appears to be already minified.
+ * Original file: /npm/scrolly-video@0.0.23/dist/scrolly-video.js
+ *
+ * Do NOT use SRI with dynamically generated files! More information: https://www.jsdelivr.com/using-sri-with-dynamic-files
+ */
+var ScrollyVideo=function(){"use strict";var t,e,i="undefined"!=typeof globalThis?globalThis:"undefined"!=typeof window?window:"undefined"!=typeof global?global:"undefined"!=typeof self?self:{},s={exports:{}};t=s,e=s.exports,function(i,s){var r="function",n="undefined",a="object",o="string",h="model",d="name",l="type",p="vendor",f="version",u="architecture",c="console",m="mobile",_="tablet",g="smarttv",y="wearable",b="embedded",v="Amazon",w="Apple",S="ASUS",U="BlackBerry",x="Browser",E="Chrome",B="Firefox",T="Google",A="Huawei",z="LG",k="Microsoft",I="Motorola",C="Opera",P="Samsung",F="Sharp",L="Sony",D="Xiaomi",R="Zebra",N="Facebook",M=function(t){for(var e={},i=0;i<t.length;i++)e[t[i].toUpperCase()]=t[i];return e},O=function(t,e){return typeof t===o&&-1!==G(e).indexOf(G(t))},G=function(t){return t.toLowerCase()},H=function(t,e){if(typeof t===o)return t=t.replace(/^\s\s*/,""),typeof e===n?t:t.substring(0,350)},V=function(t,e){for(var i,n,o,h,d,l,p=0;p<e.length&&!d;){var f=e[p],u=e[p+1];for(i=n=0;i<f.length&&!d;)if(d=f[i++].exec(t))for(o=0;o<u.length;o++)l=d[++n],typeof(h=u[o])===a&&h.length>0?2===h.length?typeof h[1]==r?this[h[0]]=h[1].call(this,l):this[h[0]]=h[1]:3===h.length?typeof h[1]!==r||h[1].exec&&h[1].test?this[h[0]]=l?l.replace(h[1],h[2]):s:this[h[0]]=l?h[1].call(this,l,h[2]):s:4===h.length&&(this[h[0]]=l?h[3].call(this,l.replace(h[1],h[2])):s):this[h]=l||s;p+=2}},Y=function(t,e){for(var i in e)if(typeof e[i]===a&&e[i].length>0){for(var r=0;r<e[i].length;r++)if(O(e[i][r],t))return"?"===i?s:i}else if(O(e[i],t))return"?"===i?s:i;return t},j={ME:"4.90","NT 3.11":"NT3.51","NT 4.0":"NT4.0",2e3:"NT 5.0",XP:["NT 5.1","NT 5.2"],Vista:"NT 6.0",7:"NT 6.1",8:"NT 6.2",8.1:"NT 6.3",10:["NT 6.4","NT 10.0"],RT:"ARM"},q={browser:[[/\b(?:crmo|crios)\/([\w\.]+)/i],[f,[d,"Chrome"]],[/edg(?:e|ios|a)?\/([\w\.]+)/i],[f,[d,"Edge"]],[/(opera mini)\/([-\w\.]+)/i,/(opera [mobiletab]{3,6})\b.+version\/([-\w\.]+)/i,/(opera)(?:.+version\/|[\/ ]+)([\w\.]+)/i],[d,f],[/opios[\/ ]+([\w\.]+)/i],[f,[d,C+" Mini"]],[/\bopr\/([\w\.]+)/i],[f,[d,C]],[/(kindle)\/([\w\.]+)/i,/(lunascape|maxthon|netfront|jasmine|blazer)[\/ ]?([\w\.]*)/i,/(avant |iemobile|slim)(?:browser)?[\/ ]?([\w\.]*)/i,/(ba?idubrowser)[\/ ]?([\w\.]+)/i,/(?:ms|\()(ie) ([\w\.]+)/i,/(flock|rockmelt|midori|epiphany|silk|skyfire|ovibrowser|bolt|iron|vivaldi|iridium|phantomjs|bowser|quark|qupzilla|falkon|rekonq|puffin|brave|whale|qqbrowserlite|qq|duckduckgo)\/([-\w\.]+)/i,/(weibo)__([\d\.]+)/i],[d,f],[/(?:\buc? ?browser|(?:juc.+)ucweb)[\/ ]?([\w\.]+)/i],[f,[d,"UC"+x]],[/microm.+\bqbcore\/([\w\.]+)/i,/\bqbcore\/([\w\.]+).+microm/i],[f,[d,"WeChat(Win) Desktop"]],[/micromessenger\/([\w\.]+)/i],[f,[d,"WeChat"]],[/konqueror\/([\w\.]+)/i],[f,[d,"Konqueror"]],[/trident.+rv[: ]([\w\.]{1,9})\b.+like gecko/i],[f,[d,"IE"]],[/yabrowser\/([\w\.]+)/i],[f,[d,"Yandex"]],[/(avast|avg)\/([\w\.]+)/i],[[d,/(.+)/,"$1 Secure "+x],f],[/\bfocus\/([\w\.]+)/i],[f,[d,B+" Focus"]],[/\bopt\/([\w\.]+)/i],[f,[d,C+" Touch"]],[/coc_coc\w+\/([\w\.]+)/i],[f,[d,"Coc Coc"]],[/dolfin\/([\w\.]+)/i],[f,[d,"Dolphin"]],[/coast\/([\w\.]+)/i],[f,[d,C+" Coast"]],[/miuibrowser\/([\w\.]+)/i],[f,[d,"MIUI "+x]],[/fxios\/([-\w\.]+)/i],[f,[d,B]],[/\bqihu|(qi?ho?o?|360)browser/i],[[d,"360 "+x]],[/(oculus|samsung|sailfish|huawei)browser\/([\w\.]+)/i],[[d,/(.+)/,"$1 "+x],f],[/(comodo_dragon)\/([\w\.]+)/i],[[d,/_/g," "],f],[/(electron)\/([\w\.]+) safari/i,/(tesla)(?: qtcarbrowser|\/(20\d\d\.[-\w\.]+))/i,/m?(qqbrowser|baiduboxapp|2345Explorer)[\/ ]?([\w\.]+)/i],[d,f],[/(metasr)[\/ ]?([\w\.]+)/i,/(lbbrowser)/i,/\[(linkedin)app\]/i],[d],[/((?:fban\/fbios|fb_iab\/fb4a)(?!.+fbav)|;fbav\/([\w\.]+);)/i],[[d,N],f],[/safari (line)\/([\w\.]+)/i,/\b(line)\/([\w\.]+)\/iab/i,/(chromium|instagram)[\/ ]([-\w\.]+)/i],[d,f],[/\bgsa\/([\w\.]+) .*safari\//i],[f,[d,"GSA"]],[/headlesschrome(?:\/([\w\.]+)| )/i],[f,[d,E+" Headless"]],[/ wv\).+(chrome)\/([\w\.]+)/i],[[d,E+" WebView"],f],[/droid.+ version\/([\w\.]+)\b.+(?:mobile safari|safari)/i],[f,[d,"Android "+x]],[/(chrome|omniweb|arora|[tizenoka]{5} ?browser)\/v?([\w\.]+)/i],[d,f],[/version\/([\w\.\,]+) .*mobile\/\w+ (safari)/i],[f,[d,"Mobile Safari"]],[/version\/([\w(\.|\,)]+) .*(mobile ?safari|safari)/i],[f,d],[/webkit.+?(mobile ?safari|safari)(\/[\w\.]+)/i],[d,[f,Y,{"1.0":"/8",1.2:"/1",1.3:"/3","2.0":"/412","2.0.2":"/416","2.0.3":"/417","2.0.4":"/419","?":"/"}]],[/(webkit|khtml)\/([\w\.]+)/i],[d,f],[/(navigator|netscape\d?)\/([-\w\.]+)/i],[[d,"Netscape"],f],[/mobile vr; 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Int8Array(new Int16Array([1]).buffer)[0]>0,a.memcpy=function(t,e,i,s,r){var n=new Uint8Array(t,e,r),a=new Uint8Array(i,s,r);n.set(a)},a.arrayToNative=function(t,e){return e==this.endianness?t:this.flipArrayEndianness(t)},a.nativeToEndian=function(t,e){return this.endianness==e?t:this.flipArrayEndianness(t)},a.flipArrayEndianness=function(t){for(var e=new Uint8Array(t.buffer,t.byteOffset,t.byteLength),i=0;i<t.byteLength;i+=t.BYTES_PER_ELEMENT)for(var s=i+t.BYTES_PER_ELEMENT-1,r=i;s>r;s--,r++){var n=e[r];e[r]=e[s],e[s]=n}return t},a.prototype.failurePosition=0,String.fromCharCodeUint8=function(t){for(var e=[],i=0;i<t.length;i++)e[i]=t[i];return String.fromCharCode.apply(null,e)},a.prototype.readString=function(t,e){return null==e||"ASCII"==e?String.fromCharCodeUint8.apply(null,[this.mapUint8Array(null==t?this.byteLength-this.position:t)]):new TextDecoder(e).decode(this.mapUint8Array(t))},a.prototype.readCString=function(t){var e=this.byteLength-this.position,i=new Uint8Array(this._buffer,this._byteOffset+this.position),s=e;null!=t&&(s=Math.min(t,e));for(var r=0;r<s&&0!==i[r];r++);var n=String.fromCharCodeUint8.apply(null,[this.mapUint8Array(r)]);return null!=t?this.position+=s-r:r!=e&&(this.position+=1),n};var o=Math.pow(2,32);a.prototype.readInt64=function(){return this.readInt32()*o+this.readUint32()},a.prototype.readUint64=function(){return this.readUint32()*o+this.readUint32()},a.prototype.readInt64=function(){return this.readUint32()*o+this.readUint32()},a.prototype.readUint24=function(){return(this.readUint8()<<16)+(this.readUint8()<<8)+this.readUint8()},t.DataStream=a,a.prototype.save=function(t){var e=new Blob([this.buffer]);if(!window.URL||!URL.createObjectURL)throw"DataStream.save: Can't create object URL.";var i=window.URL.createObjectURL(e),s=document.createElement("a");document.body.appendChild(s),s.setAttribute("href",i),s.setAttribute("download",t),s.setAttribute("target","_self"),s.click(),window.URL.revokeObjectURL(i)},a.prototype._dynamicSize=!0,Object.defineProperty(a.prototype,"dynamicSize",{get:function(){return this._dynamicSize},set:function(t){t||this._trimAlloc(),this._dynamicSize=t}}),a.prototype.shift=function(t){var e=new ArrayBuffer(this._byteLength-t),i=new Uint8Array(e),s=new Uint8Array(this._buffer,t,i.length);i.set(s),this.buffer=e,this.position-=t},a.prototype.writeInt32Array=function(t,e){if(this._realloc(4*t.length),t instanceof Int32Array&&this.byteOffset+this.position%t.BYTES_PER_ELEMENT===0)a.memcpy(this._buffer,this.byteOffset+this.position,t.buffer,0,t.byteLength),this.mapInt32Array(t.length,e);else for(var i=0;i<t.length;i++)this.writeInt32(t[i],e)},a.prototype.writeInt16Array=function(t,e){if(this._realloc(2*t.length),t instanceof Int16Array&&this.byteOffset+this.position%t.BYTES_PER_ELEMENT===0)a.memcpy(this._buffer,this.byteOffset+this.position,t.buffer,0,t.byteLength),this.mapInt16Array(t.length,e);else for(var i=0;i<t.length;i++)this.writeInt16(t[i],e)},a.prototype.writeInt8Array=function(t){if(this._realloc(1*t.length),t instanceof Int8Array&&this.byteOffset+this.position%t.BYTES_PER_ELEMENT===0)a.memcpy(this._buffer,this.byteOffset+this.position,t.buffer,0,t.byteLength),this.mapInt8Array(t.length);else for(var e=0;e<t.length;e++)this.writeInt8(t[e])},a.prototype.writeUint32Array=function(t,e){if(this._realloc(4*t.length),t instanceof Uint32Array&&this.byteOffset+this.position%t.BYTES_PER_ELEMENT===0)a.memcpy(this._buffer,this.byteOffset+this.position,t.buffer,0,t.byteLength),this.mapUint32Array(t.length,e);else for(var i=0;i<t.length;i++)this.writeUint32(t[i],e)},a.prototype.writeUint16Array=function(t,e){if(this._realloc(2*t.length),t instanceof Uint16Array&&this.byteOffset+this.position%t.BYTES_PER_ELEMENT===0)a.memcpy(this._buffer,this.byteOffset+this.position,t.buffer,0,t.byteLength),this.mapUint16Array(t.length,e);else for(var i=0;i<t.length;i++)this.writeUint16(t[i],e)},a.prototype.writeUint8Array=function(t){if(this._realloc(1*t.length),t instanceof Uint8Array&&this.byteOffset+this.position%t.BYTES_PER_ELEMENT===0)a.memcpy(this._buffer,this.byteOffset+this.position,t.buffer,0,t.byteLength),this.mapUint8Array(t.length);else for(var e=0;e<t.length;e++)this.writeUint8(t[e])},a.prototype.writeFloat64Array=function(t,e){if(this._realloc(8*t.length),t instanceof Float64Array&&this.byteOffset+this.position%t.BYTES_PER_ELEMENT===0)a.memcpy(this._buffer,this.byteOffset+this.position,t.buffer,0,t.byteLength),this.mapFloat64Array(t.length,e);else for(var i=0;i<t.length;i++)this.writeFloat64(t[i],e)},a.prototype.writeFloat32Array=function(t,e){if(this._realloc(4*t.length),t instanceof Float32Array&&this.byteOffset+this.position%t.BYTES_PER_ELEMENT===0)a.memcpy(this._buffer,this.byteOffset+this.position,t.buffer,0,t.byteLength),this.mapFloat32Array(t.length,e);else for(var i=0;i<t.length;i++)this.writeFloat32(t[i],e)},a.prototype.writeInt32=function(t,e){this._realloc(4),this._dataView.setInt32(this.position,t,null==e?this.endianness:e),this.position+=4},a.prototype.writeInt16=function(t,e){this._realloc(2),this._dataView.setInt16(this.position,t,null==e?this.endianness:e),this.position+=2},a.prototype.writeInt8=function(t){this._realloc(1),this._dataView.setInt8(this.position,t),this.position+=1},a.prototype.writeUint32=function(t,e){this._realloc(4),this._dataView.setUint32(this.position,t,null==e?this.endianness:e),this.position+=4},a.prototype.writeUint16=function(t,e){this._realloc(2),this._dataView.setUint16(this.position,t,null==e?this.endianness:e),this.position+=2},a.prototype.writeUint8=function(t){this._realloc(1),this._dataView.setUint8(this.position,t),this.position+=1},a.prototype.writeFloat32=function(t,e){this._realloc(4),this._dataView.setFloat32(this.position,t,null==e?this.endianness:e),this.position+=4},a.prototype.writeFloat64=function(t,e){this._realloc(8),this._dataView.setFloat64(this.position,t,null==e?this.endianness:e),this.position+=8},a.prototype.writeUCS2String=function(t,e,i){null==i&&(i=t.length);for(var s=0;s<t.length&&s<i;s++)this.writeUint16(t.charCodeAt(s),e);for(;s<i;s++)this.writeUint16(0)},a.prototype.writeString=function(t,e,i){var s=0;if(null==e||"ASCII"==e)if(null!=i){var r=Math.min(t.length,i);for(s=0;s<r;s++)this.writeUint8(t.charCodeAt(s));for(;s<i;s++)this.writeUint8(0)}else for(s=0;s<t.length;s++)this.writeUint8(t.charCodeAt(s));else this.writeUint8Array(new TextEncoder(e).encode(t.substring(0,i)))},a.prototype.writeCString=function(t,e){var i=0;if(null!=e){var s=Math.min(t.length,e);for(i=0;i<s;i++)this.writeUint8(t.charCodeAt(i));for(;i<e;i++)this.writeUint8(0)}else{for(i=0;i<t.length;i++)this.writeUint8(t.charCodeAt(i));this.writeUint8(0)}},a.prototype.writeStruct=function(t,e){for(var i=0;i<t.length;i+=2){var s=t[i+1];this.writeType(s,e[t[i]],e)}},a.prototype.writeType=function(t,e,i){var s;if("function"==typeof t)return t(this,e);if("object"==typeof t&&!(t instanceof Array))return t.set(this,e,i);var r=null,n="ASCII",o=this.position;switch("string"==typeof t&&/:/.test(t)&&(s=t.split(":"),t=s[0],r=parseInt(s[1])),"string"==typeof t&&/,/.test(t)&&(s=t.split(","),t=s[0],n=parseInt(s[1])),t){case"uint8":this.writeUint8(e);break;case"int8":this.writeInt8(e);break;case"uint16":this.writeUint16(e,this.endianness);break;case"int16":this.writeInt16(e,this.endianness);break;case"uint32":this.writeUint32(e,this.endianness);break;case"int32":this.writeInt32(e,this.endianness);break;case"float32":this.writeFloat32(e,this.endianness);break;case"float64":this.writeFloat64(e,this.endianness);break;case"uint16be":this.writeUint16(e,a.BIG_ENDIAN);break;case"int16be":this.writeInt16(e,a.BIG_ENDIAN);break;case"uint32be":this.writeUint32(e,a.BIG_ENDIAN);break;case"int32be":this.writeInt32(e,a.BIG_ENDIAN);break;case"float32be":this.writeFloat32(e,a.BIG_ENDIAN);break;case"float64be":this.writeFloat64(e,a.BIG_ENDIAN);break;case"uint16le":this.writeUint16(e,a.LITTLE_ENDIAN);break;case"int16le":this.writeInt16(e,a.LITTLE_ENDIAN);break;case"uint32le":this.writeUint32(e,a.LITTLE_ENDIAN);break;case"int32le":this.writeInt32(e,a.LITTLE_ENDIAN);break;case"float32le":this.writeFloat32(e,a.LITTLE_ENDIAN);break;case"float64le":this.writeFloat64(e,a.LITTLE_ENDIAN);break;case"cstring":this.writeCString(e,r);break;case"string":this.writeString(e,n,r);break;case"u16string":this.writeUCS2String(e,this.endianness,r);break;case"u16stringle":this.writeUCS2String(e,a.LITTLE_ENDIAN,r);break;case"u16stringbe":this.writeUCS2String(e,a.BIG_ENDIAN,r);break;default:if(3==t.length){for(var h=t[1],d=0;d<e.length;d++)this.writeType(h,e[d]);break}this.writeStruct(t,e)}null!=r&&(this.position=o,this._realloc(r),this.position=o+r)},a.prototype.writeUint64=function(t){var e=Math.floor(t/o);this.writeUint32(e),this.writeUint32(4294967295&t)},a.prototype.writeUint24=function(t){this.writeUint8((16711680&t)>>16),this.writeUint8((65280&t)>>8),this.writeUint8(255&t)},a.prototype.adjustUint32=function(t,e){var i=this.position;this.seek(t),this.writeUint32(e),this.seek(i)},a.prototype.mapInt32Array=function(t,e){this._realloc(4*t);var i=new Int32Array(this._buffer,this.byteOffset+this.position,t);return a.arrayToNative(i,null==e?this.endianness:e),this.position+=4*t,i},a.prototype.mapInt16Array=function(t,e){this._realloc(2*t);var i=new Int16Array(this._buffer,this.byteOffset+this.position,t);return a.arrayToNative(i,null==e?this.endianness:e),this.position+=2*t,i},a.prototype.mapInt8Array=function(t){this._realloc(1*t);var e=new Int8Array(this._buffer,this.byteOffset+this.position,t);return this.position+=1*t,e},a.prototype.mapUint32Array=function(t,e){this._realloc(4*t);var i=new Uint32Array(this._buffer,this.byteOffset+this.position,t);return a.arrayToNative(i,null==e?this.endianness:e),this.position+=4*t,i},a.prototype.mapUint16Array=function(t,e){this._realloc(2*t);var i=new Uint16Array(this._buffer,this.byteOffset+this.position,t);return a.arrayToNative(i,null==e?this.endianness:e),this.position+=2*t,i},a.prototype.mapFloat64Array=function(t,e){this._realloc(8*t);var i=new Float64Array(this._buffer,this.byteOffset+this.position,t);return a.arrayToNative(i,null==e?this.endianness:e),this.position+=8*t,i},a.prototype.mapFloat32Array=function(t,e){this._realloc(4*t);var i=new Float32Array(this._buffer,this.byteOffset+this.position,t);return a.arrayToNative(i,null==e?this.endianness:e),this.position+=4*t,i};var h=function(t){this.buffers=[],this.bufferIndex=-1,t&&(this.insertBuffer(t),this.bufferIndex=0)};(h.prototype=new a(new ArrayBuffer,0,a.BIG_ENDIAN)).initialized=function(){var t;return this.bufferIndex>-1||(this.buffers.length>0?0===(t=this.buffers[0]).fileStart?(this.buffer=t,this.bufferIndex=0,r.debug("MultiBufferStream","Stream ready for parsing"),!0):(r.warn("MultiBufferStream","The first buffer should have a fileStart of 0"),this.logBufferLevel(),!1):(r.warn("MultiBufferStream","No buffer to start parsing from"),this.logBufferLevel(),!1))},ArrayBuffer.concat=function(t,e){r.debug("ArrayBuffer","Trying to create a new buffer of size: "+(t.byteLength+e.byteLength));var i=new Uint8Array(t.byteLength+e.byteLength);return i.set(new Uint8Array(t),0),i.set(new Uint8Array(e),t.byteLength),i.buffer},h.prototype.reduceBuffer=function(t,e,i){var s;return(s=new Uint8Array(i)).set(new Uint8Array(t,e,i)),s.buffer.fileStart=t.fileStart+e,s.buffer.usedBytes=0,s.buffer},h.prototype.insertBuffer=function(t){for(var e=!0,i=0;i<this.buffers.length;i++){var s=this.buffers[i];if(t.fileStart<=s.fileStart){if(t.fileStart===s.fileStart){if(t.byteLength>s.byteLength){this.buffers.splice(i,1),i--;continue}r.warn("MultiBufferStream","Buffer (fileStart: "+t.fileStart+" - Length: "+t.byteLength+") already appended, ignoring")}else t.fileStart+t.byteLength<=s.fileStart||(t=this.reduceBuffer(t,0,s.fileStart-t.fileStart)),r.debug("MultiBufferStream","Appending new buffer (fileStart: "+t.fileStart+" - Length: "+t.byteLength+")"),this.buffers.splice(i,0,t),0===i&&(this.buffer=t);e=!1;break}if(t.fileStart<s.fileStart+s.byteLength){var n=s.fileStart+s.byteLength-t.fileStart,a=t.byteLength-n;if(!(a>0)){e=!1;break}t=this.reduceBuffer(t,n,a)}}e&&(r.debug("MultiBufferStream","Appending new buffer (fileStart: "+t.fileStart+" - Length: "+t.byteLength+")"),this.buffers.push(t),0===i&&(this.buffer=t))},h.prototype.logBufferLevel=function(t){var e,i,s,n,a,o=[],h="";for(s=0,n=0,e=0;e<this.buffers.length;e++)i=this.buffers[e],0===e?(a={},o.push(a),a.start=i.fileStart,a.end=i.fileStart+i.byteLength,h+="["+a.start+"-"):a.end===i.fileStart?a.end=i.fileStart+i.byteLength:((a={}).start=i.fileStart,h+=o[o.length-1].end-1+"], ["+a.start+"-",a.end=i.fileStart+i.byteLength,o.push(a)),s+=i.usedBytes,n+=i.byteLength;o.length>0&&(h+=a.end-1+"]");var d=t?r.info:r.debug;0===this.buffers.length?d("MultiBufferStream","No more buffer in memory"):d("MultiBufferStream",this.buffers.length+" stored buffer(s) ("+s+"/"+n+" bytes), continuous ranges: "+h)},h.prototype.cleanBuffers=function(){var t,e;for(t=0;t<this.buffers.length;t++)(e=this.buffers[t]).usedBytes===e.byteLength&&(r.debug("MultiBufferStream","Removing buffer #"+t),this.buffers.splice(t,1),t--)},h.prototype.mergeNextBuffer=function(){var t;if(this.bufferIndex+1<this.buffers.length){if((t=this.buffers[this.bufferIndex+1]).fileStart===this.buffer.fileStart+this.buffer.byteLength){var e=this.buffer.byteLength,i=this.buffer.usedBytes,s=this.buffer.fileStart;return this.buffers[this.bufferIndex]=ArrayBuffer.concat(this.buffer,t),this.buffer=this.buffers[this.bufferIndex],this.buffers.splice(this.bufferIndex+1,1),this.buffer.usedBytes=i,this.buffer.fileStart=s,r.debug("ISOFile","Concatenating buffer for box parsing (length: "+e+"->"+this.buffer.byteLength+")"),!0}return!1}return!1},h.prototype.findPosition=function(t,e,i){var s,n=null,a=-1;for(s=!0===t?0:this.bufferIndex;s<this.buffers.length&&(n=this.buffers[s]).fileStart<=e;)a=s,i&&(n.fileStart+n.byteLength<=e?n.usedBytes=n.byteLength:n.usedBytes=e-n.fileStart,this.logBufferLevel()),s++;return-1!==a&&(n=this.buffers[a]).fileStart+n.byteLength>=e?(r.debug("MultiBufferStream","Found position in existing buffer #"+a),a):-1},h.prototype.findEndContiguousBuf=function(t){var e,i,s,r=void 0!==t?t:this.bufferIndex;if(i=this.buffers[r],this.buffers.length>r+1)for(e=r+1;e<this.buffers.length&&(s=this.buffers[e]).fileStart===i.fileStart+i.byteLength;e++)i=s;return i.fileStart+i.byteLength},h.prototype.getEndFilePositionAfter=function(t){var e=this.findPosition(!0,t,!1);return-1!==e?this.findEndContiguousBuf(e):t},h.prototype.addUsedBytes=function(t){this.buffer.usedBytes+=t,this.logBufferLevel()},h.prototype.setAllUsedBytes=function(){this.buffer.usedBytes=this.buffer.byteLength,this.logBufferLevel()},h.prototype.seek=function(t,e,i){var s;return-1!==(s=this.findPosition(e,t,i))?(this.buffer=this.buffers[s],this.bufferIndex=s,this.position=t-this.buffer.fileStart,r.debug("MultiBufferStream","Repositioning parser at buffer position: "+this.position),!0):(r.debug("MultiBufferStream","Position "+t+" not found in buffered data"),!1)},h.prototype.getPosition=function(){if(-1===this.bufferIndex||null===this.buffers[this.bufferIndex])throw"Error accessing position in the MultiBufferStream";return this.buffers[this.bufferIndex].fileStart+this.position},h.prototype.getLength=function(){return this.byteLength},h.prototype.getEndPosition=function(){if(-1===this.bufferIndex||null===this.buffers[this.bufferIndex])throw"Error accessing position in the MultiBufferStream";return this.buffers[this.bufferIndex].fileStart+this.byteLength},t.MultiBufferStream=h;var d=function(){var t=[];t[3]="ES_Descriptor",t[4]="DecoderConfigDescriptor",t[5]="DecoderSpecificInfo",t[6]="SLConfigDescriptor",this.getDescriptorName=function(e){return t[e]};var e=this,i={};return this.parseOneDescriptor=function(e){var s,n,a,o=0;for(s=e.readUint8(),a=e.readUint8();128&a;)o=(127&a)<<7,a=e.readUint8();return o+=127&a,r.debug("MPEG4DescriptorParser","Found "+(t[s]||"Descriptor "+s)+", size "+o+" at position "+e.getPosition()),(n=t[s]?new i[t[s]](o):new i.Descriptor(o)).parse(e),n},i.Descriptor=function(t,e){this.tag=t,this.size=e,this.descs=[]},i.Descriptor.prototype.parse=function(t){this.data=t.readUint8Array(this.size)},i.Descriptor.prototype.findDescriptor=function(t){for(var e=0;e<this.descs.length;e++)if(this.descs[e].tag==t)return this.descs[e];return null},i.Descriptor.prototype.parseRemainingDescriptors=function(t){for(var i=t.position;t.position<i+this.size;){var s=e.parseOneDescriptor(t);this.descs.push(s)}},i.ES_Descriptor=function(t){i.Descriptor.call(this,3,t)},i.ES_Descriptor.prototype=new i.Descriptor,i.ES_Descriptor.prototype.parse=function(t){if(this.ES_ID=t.readUint16(),this.flags=t.readUint8(),this.size-=3,128&this.flags?(this.dependsOn_ES_ID=t.readUint16(),this.size-=2):this.dependsOn_ES_ID=0,64&this.flags){var e=t.readUint8();this.URL=t.readString(e),this.size-=e+1}else this.URL="";32&this.flags?(this.OCR_ES_ID=t.readUint16(),this.size-=2):this.OCR_ES_ID=0,this.parseRemainingDescriptors(t)},i.ES_Descriptor.prototype.getOTI=function(t){var e=this.findDescriptor(4);return e?e.oti:0},i.ES_Descriptor.prototype.getAudioConfig=function(t){var e=this.findDescriptor(4);if(!e)return null;var i=e.findDescriptor(5);if(i&&i.data){var s=(248&i.data[0])>>3;return 31===s&&i.data.length>=2&&(s=32+((7&i.data[0])<<3)+((224&i.data[1])>>5)),s}return null},i.DecoderConfigDescriptor=function(t){i.Descriptor.call(this,4,t)},i.DecoderConfigDescriptor.prototype=new i.Descriptor,i.DecoderConfigDescriptor.prototype.parse=function(t){this.oti=t.readUint8(),this.streamType=t.readUint8(),this.bufferSize=t.readUint24(),this.maxBitrate=t.readUint32(),this.avgBitrate=t.readUint32(),this.size-=13,this.parseRemainingDescriptors(t)},i.DecoderSpecificInfo=function(t){i.Descriptor.call(this,5,t)},i.DecoderSpecificInfo.prototype=new i.Descriptor,i.SLConfigDescriptor=function(t){i.Descriptor.call(this,6,t)},i.SLConfigDescriptor.prototype=new i.Descriptor,this};t.MPEG4DescriptorParser=d;var l={ERR_INVALID_DATA:-1,ERR_NOT_ENOUGH_DATA:0,OK:1,BASIC_BOXES:["mdat","idat","free","skip","meco","strk"],FULL_BOXES:["hmhd","nmhd","iods","xml ","bxml","ipro","mere"],CONTAINER_BOXES:[["moov",["trak","pssh"]],["trak"],["edts"],["mdia"],["minf"],["dinf"],["stbl",["sgpd","sbgp"]],["mvex",["trex"]],["moof",["traf"]],["traf",["trun","sgpd","sbgp"]],["vttc"],["tref"],["iref"],["mfra",["tfra"]],["meco"],["hnti"],["hinf"],["strk"],["strd"],["sinf"],["rinf"],["schi"],["trgr"],["udta",["kind"]],["iprp",["ipma"]],["ipco"]],boxCodes:[],fullBoxCodes:[],containerBoxCodes:[],sampleEntryCodes:{},sampleGroupEntryCodes:[],trackGroupTypes:[],UUIDBoxes:{},UUIDs:[],initialize:function(){l.FullBox.prototype=new l.Box,l.ContainerBox.prototype=new l.Box,l.SampleEntry.prototype=new l.Box,l.TrackGroupTypeBox.prototype=new l.FullBox,l.BASIC_BOXES.forEach((function(t){l.createBoxCtor(t)})),l.FULL_BOXES.forEach((function(t){l.createFullBoxCtor(t)})),l.CONTAINER_BOXES.forEach((function(t){l.createContainerBoxCtor(t[0],null,t[1])}))},Box:function(t,e,i){this.type=t,this.size=e,this.uuid=i},FullBox:function(t,e,i){l.Box.call(this,t,e,i),this.flags=0,this.version=0},ContainerBox:function(t,e,i){l.Box.call(this,t,e,i),this.boxes=[]},SampleEntry:function(t,e,i,s){l.ContainerBox.call(this,t,e),this.hdr_size=i,this.start=s},SampleGroupEntry:function(t){this.grouping_type=t},TrackGroupTypeBox:function(t,e){l.FullBox.call(this,t,e)},createBoxCtor:function(t,e){l.boxCodes.push(t),l[t+"Box"]=function(e){l.Box.call(this,t,e)},l[t+"Box"].prototype=new l.Box,e&&(l[t+"Box"].prototype.parse=e)},createFullBoxCtor:function(t,e){l[t+"Box"]=function(e){l.FullBox.call(this,t,e)},l[t+"Box"].prototype=new l.FullBox,l[t+"Box"].prototype.parse=function(t){this.parseFullHeader(t),e&&e.call(this,t)}},addSubBoxArrays:function(t){if(t){this.subBoxNames=t;for(var e=t.length,i=0;i<e;i++)this[t[i]+"s"]=[]}},createContainerBoxCtor:function(t,e,i){l[t+"Box"]=function(e){l.ContainerBox.call(this,t,e),l.addSubBoxArrays.call(this,i)},l[t+"Box"].prototype=new l.ContainerBox,e&&(l[t+"Box"].prototype.parse=e)},createMediaSampleEntryCtor:function(t,e,i){l.sampleEntryCodes[t]=[],l[t+"SampleEntry"]=function(t,e){l.SampleEntry.call(this,t,e),l.addSubBoxArrays.call(this,i)},l[t+"SampleEntry"].prototype=new l.SampleEntry,e&&(l[t+"SampleEntry"].prototype.parse=e)},createSampleEntryCtor:function(t,e,i,s){l.sampleEntryCodes[t].push(e),l[e+"SampleEntry"]=function(i){l[t+"SampleEntry"].call(this,e,i),l.addSubBoxArrays.call(this,s)},l[e+"SampleEntry"].prototype=new l[t+"SampleEntry"],i&&(l[e+"SampleEntry"].prototype.parse=i)},createEncryptedSampleEntryCtor:function(t,e,i){l.createSampleEntryCtor.call(this,t,e,i,["sinf"])},createSampleGroupCtor:function(t,e){l[t+"SampleGroupEntry"]=function(e){l.SampleGroupEntry.call(this,t,e)},l[t+"SampleGroupEntry"].prototype=new l.SampleGroupEntry,e&&(l[t+"SampleGroupEntry"].prototype.parse=e)},createTrackGroupCtor:function(t,e){l[t+"TrackGroupTypeBox"]=function(e){l.TrackGroupTypeBox.call(this,t,e)},l[t+"TrackGroupTypeBox"].prototype=new l.TrackGroupTypeBox,e&&(l[t+"TrackGroupTypeBox"].prototype.parse=e)},createUUIDBox:function(t,e,i,s){l.UUIDs.push(t),l.UUIDBoxes[t]=function(s){e?l.FullBox.call(this,"uuid",s,t):i?l.ContainerBox.call(this,"uuid",s,t):l.Box.call(this,"uuid",s,t)},l.UUIDBoxes[t].prototype=e?new l.FullBox:i?new l.ContainerBox:new l.Box,s&&(l.UUIDBoxes[t].prototype.parse=e?function(t){this.parseFullHeader(t),s&&s.call(this,t)}:s)}};l.initialize(),l.TKHD_FLAG_ENABLED=1,l.TKHD_FLAG_IN_MOVIE=2,l.TKHD_FLAG_IN_PREVIEW=4,l.TFHD_FLAG_BASE_DATA_OFFSET=1,l.TFHD_FLAG_SAMPLE_DESC=2,l.TFHD_FLAG_SAMPLE_DUR=8,l.TFHD_FLAG_SAMPLE_SIZE=16,l.TFHD_FLAG_SAMPLE_FLAGS=32,l.TFHD_FLAG_DUR_EMPTY=65536,l.TFHD_FLAG_DEFAULT_BASE_IS_MOOF=131072,l.TRUN_FLAGS_DATA_OFFSET=1,l.TRUN_FLAGS_FIRST_FLAG=4,l.TRUN_FLAGS_DURATION=256,l.TRUN_FLAGS_SIZE=512,l.TRUN_FLAGS_FLAGS=1024,l.TRUN_FLAGS_CTS_OFFSET=2048,l.Box.prototype.add=function(t){return this.addBox(new l[t+"Box"])},l.Box.prototype.addBox=function(t){return this.boxes.push(t),this[t.type+"s"]?this[t.type+"s"].push(t):this[t.type]=t,t},l.Box.prototype.set=function(t,e){return this[t]=e,this},l.Box.prototype.addEntry=function(t,e){var i=e||"entries";return this[i]||(this[i]=[]),this[i].push(t),this},t.BoxParser=l,l.parseUUID=function(t){return l.parseHex16(t)},l.parseHex16=function(t){for(var e="",i=0;i<16;i++){var s=t.readUint8().toString(16);e+=1===s.length?"0"+s:s}return e},l.parseOneBox=function(t,e,i){var s,n,a,o=t.getPosition(),h=0;if(t.getEndPosition()-o<8)return r.debug("BoxParser","Not enough data in stream to parse the type and size of the box"),{code:l.ERR_NOT_ENOUGH_DATA};if(i&&i<8)return r.debug("BoxParser","Not enough bytes left in the parent box to parse a new box"),{code:l.ERR_NOT_ENOUGH_DATA};var d=t.readUint32(),p=t.readString(4),f=p;if(r.debug("BoxParser","Found box of type '"+p+"' and size "+d+" at position "+o),h=8,"uuid"==p){if(t.getEndPosition()-t.getPosition()<16||i-h<16)return t.seek(o),r.debug("BoxParser","Not enough bytes left in the parent box to parse a UUID box"),{code:l.ERR_NOT_ENOUGH_DATA};h+=16,f=a=l.parseUUID(t)}if(1==d){if(t.getEndPosition()-t.getPosition()<8||i&&i-h<8)return t.seek(o),r.warn("BoxParser",'Not enough data in stream to parse the extended size of the "'+p+'" box'),{code:l.ERR_NOT_ENOUGH_DATA};d=t.readUint64(),h+=8}else if(0===d)if(i)d=i;else if("mdat"!==p)return r.error("BoxParser","Unlimited box size not supported for type: '"+p+"'"),s=new l.Box(p,d),{code:l.OK,box:s,size:s.size};return d<h?(r.error("BoxParser","Box of type "+p+" has an invalid size "+d+" (too small to be a box)"),{code:l.ERR_NOT_ENOUGH_DATA,type:p,size:d,hdr_size:h,start:o}):i&&d>i?(r.error("BoxParser","Box of type '"+p+"' has a size "+d+" greater than its container size "+i),{code:l.ERR_NOT_ENOUGH_DATA,type:p,size:d,hdr_size:h,start:o}):o+d>t.getEndPosition()?(t.seek(o),r.info("BoxParser","Not enough data in stream to parse the entire '"+p+"' box"),{code:l.ERR_NOT_ENOUGH_DATA,type:p,size:d,hdr_size:h,start:o}):e?{code:l.OK,type:p,size:d,hdr_size:h,start:o}:(l[p+"Box"]?s=new l[p+"Box"](d):"uuid"!==p?(r.warn("BoxParser","Unknown box type: '"+p+"'"),(s=new l.Box(p,d)).has_unparsed_data=!0):l.UUIDBoxes[a]?s=new l.UUIDBoxes[a](d):(r.warn("BoxParser","Unknown uuid type: '"+a+"'"),(s=new l.Box(p,d)).uuid=a,s.has_unparsed_data=!0),s.hdr_size=h,s.start=o,s.write===l.Box.prototype.write&&"mdat"!==s.type&&(r.info("BoxParser","'"+f+"' box writing not yet implemented, keeping unparsed data in memory for later write"),s.parseDataAndRewind(t)),s.parse(t),(n=t.getPosition()-(s.start+s.size))<0?(r.warn("BoxParser","Parsing of box '"+f+"' did not read the entire indicated box data size (missing "+-n+" bytes), seeking forward"),t.seek(s.start+s.size)):n>0&&(r.error("BoxParser","Parsing of box '"+f+"' read "+n+" more bytes than the indicated box data size, seeking backwards"),t.seek(s.start+s.size)),{code:l.OK,box:s,size:s.size})},l.Box.prototype.parse=function(t){"mdat"!=this.type?this.data=t.readUint8Array(this.size-this.hdr_size):0===this.size?t.seek(t.getEndPosition()):t.seek(this.start+this.size)},l.Box.prototype.parseDataAndRewind=function(t){this.data=t.readUint8Array(this.size-this.hdr_size),t.position-=this.size-this.hdr_size},l.FullBox.prototype.parseDataAndRewind=function(t){this.parseFullHeader(t),this.data=t.readUint8Array(this.size-this.hdr_size),this.hdr_size-=4,t.position-=this.size-this.hdr_size},l.FullBox.prototype.parseFullHeader=function(t){this.version=t.readUint8(),this.flags=t.readUint24(),this.hdr_size+=4},l.FullBox.prototype.parse=function(t){this.parseFullHeader(t),this.data=t.readUint8Array(this.size-this.hdr_size)},l.ContainerBox.prototype.parse=function(t){for(var e,i;t.getPosition()<this.start+this.size;){if((e=l.parseOneBox(t,!1,this.size-(t.getPosition()-this.start))).code!==l.OK)return;if(i=e.box,this.boxes.push(i),this.subBoxNames&&-1!=this.subBoxNames.indexOf(i.type))this[this.subBoxNames[this.subBoxNames.indexOf(i.type)]+"s"].push(i);else{var s="uuid"!==i.type?i.type:i.uuid;this[s]?r.warn("Box of type "+s+" already stored in field of this type"):this[s]=i}}},l.Box.prototype.parseLanguage=function(t){this.language=t.readUint16();var e=[];e[0]=this.language>>10&31,e[1]=this.language>>5&31,e[2]=31&this.language,this.languageString=String.fromCharCode(e[0]+96,e[1]+96,e[2]+96)},l.SAMPLE_ENTRY_TYPE_VISUAL="Visual",l.SAMPLE_ENTRY_TYPE_AUDIO="Audio",l.SAMPLE_ENTRY_TYPE_HINT="Hint",l.SAMPLE_ENTRY_TYPE_METADATA="Metadata",l.SAMPLE_ENTRY_TYPE_SUBTITLE="Subtitle",l.SAMPLE_ENTRY_TYPE_SYSTEM="System",l.SAMPLE_ENTRY_TYPE_TEXT="Text",l.SampleEntry.prototype.parseHeader=function(t){t.readUint8Array(6),this.data_reference_index=t.readUint16(),this.hdr_size+=8},l.SampleEntry.prototype.parse=function(t){this.parseHeader(t),this.data=t.readUint8Array(this.size-this.hdr_size)},l.SampleEntry.prototype.parseDataAndRewind=function(t){this.parseHeader(t),this.data=t.readUint8Array(this.size-this.hdr_size),this.hdr_size-=8,t.position-=this.size-this.hdr_size},l.SampleEntry.prototype.parseFooter=function(t){l.ContainerBox.prototype.parse.call(this,t)},l.createMediaSampleEntryCtor(l.SAMPLE_ENTRY_TYPE_HINT),l.createMediaSampleEntryCtor(l.SAMPLE_ENTRY_TYPE_METADATA),l.createMediaSampleEntryCtor(l.SAMPLE_ENTRY_TYPE_SUBTITLE),l.createMediaSampleEntryCtor(l.SAMPLE_ENTRY_TYPE_SYSTEM),l.createMediaSampleEntryCtor(l.SAMPLE_ENTRY_TYPE_TEXT),l.createMediaSampleEntryCtor(l.SAMPLE_ENTRY_TYPE_VISUAL,(function(t){var e;this.parseHeader(t),t.readUint16(),t.readUint16(),t.readUint32Array(3),this.width=t.readUint16(),this.height=t.readUint16(),this.horizresolution=t.readUint32(),this.vertresolution=t.readUint32(),t.readUint32(),this.frame_count=t.readUint16(),e=Math.min(31,t.readUint8()),this.compressorname=t.readString(e),e<31&&t.readString(31-e),this.depth=t.readUint16(),t.readUint16(),this.parseFooter(t)})),l.createMediaSampleEntryCtor(l.SAMPLE_ENTRY_TYPE_AUDIO,(function(t){this.parseHeader(t),t.readUint32Array(2),this.channel_count=t.readUint16(),this.samplesize=t.readUint16(),t.readUint16(),t.readUint16(),this.samplerate=t.readUint32()/65536,this.parseFooter(t)})),l.createSampleEntryCtor(l.SAMPLE_ENTRY_TYPE_VISUAL,"avc1"),l.createSampleEntryCtor(l.SAMPLE_ENTRY_TYPE_VISUAL,"avc2"),l.createSampleEntryCtor(l.SAMPLE_ENTRY_TYPE_VISUAL,"avc3"),l.createSampleEntryCtor(l.SAMPLE_ENTRY_TYPE_VISUAL,"avc4"),l.createSampleEntryCtor(l.SAMPLE_ENTRY_TYPE_VISUAL,"av01"),l.createSampleEntryCtor(l.SAMPLE_ENTRY_TYPE_VISUAL,"hvc1"),l.createSampleEntryCtor(l.SAMPLE_ENTRY_TYPE_VISUAL,"hev1"),l.createSampleEntryCtor(l.SAMPLE_ENTRY_TYPE_AUDIO,"mp4a"),l.createSampleEntryCtor(l.SAMPLE_ENTRY_TYPE_AUDIO,"ac-3"),l.createSampleEntryCtor(l.SAMPLE_ENTRY_TYPE_AUDIO,"ec-3"),l.createEncryptedSampleEntryCtor(l.SAMPLE_ENTRY_TYPE_VISUAL,"encv"),l.createEncryptedSampleEntryCtor(l.SAMPLE_ENTRY_TYPE_AUDIO,"enca"),l.createEncryptedSampleEntryCtor(l.SAMPLE_ENTRY_TYPE_SUBTITLE,"encu"),l.createEncryptedSampleEntryCtor(l.SAMPLE_ENTRY_TYPE_SYSTEM,"encs"),l.createEncryptedSampleEntryCtor(l.SAMPLE_ENTRY_TYPE_TEXT,"enct"),l.createEncryptedSampleEntryCtor(l.SAMPLE_ENTRY_TYPE_METADATA,"encm"),l.createBoxCtor("a1lx",(function(t){var e=16*(1+(1&(1&t.readUint8())));this.layer_size=[];for(var i=0;i<3;i++)this.layer_size[i]=16==e?t.readUint16():t.readUint32()})),l.createBoxCtor("a1op",(function(t){this.op_index=t.readUint8()})),l.createFullBoxCtor("auxC",(function(t){this.aux_type=t.readCString();var e=this.size-this.hdr_size-(this.aux_type.length+1);this.aux_subtype=t.readUint8Array(e)})),l.createBoxCtor("av1C",(function(t){var e=t.readUint8();if(e>>7&!1)r.error("av1C marker problem");else if(this.version=127&e,1===this.version)if(e=t.readUint8(),this.seq_profile=e>>5&7,this.seq_level_idx_0=31&e,e=t.readUint8(),this.seq_tier_0=e>>7&1,this.high_bitdepth=e>>6&1,this.twelve_bit=e>>5&1,this.monochrome=e>>4&1,this.chroma_subsampling_x=e>>3&1,this.chroma_subsampling_y=e>>2&1,this.chroma_sample_position=3&e,e=t.readUint8(),this.reserved_1=e>>5&7,0===this.reserved_1){if(this.initial_presentation_delay_present=e>>4&1,1===this.initial_presentation_delay_present)this.initial_presentation_delay_minus_one=15&e;else if(this.reserved_2=15&e,0!==this.reserved_2)return void r.error("av1C reserved_2 parsing problem");var i=this.size-this.hdr_size-4;this.configOBUs=t.readUint8Array(i)}else r.error("av1C reserved_1 parsing problem");else r.error("av1C version "+this.version+" not supported")})),l.createBoxCtor("avcC",(function(t){var e,i;for(this.configurationVersion=t.readUint8(),this.AVCProfileIndication=t.readUint8(),this.profile_compatibility=t.readUint8(),this.AVCLevelIndication=t.readUint8(),this.lengthSizeMinusOne=3&t.readUint8(),this.nb_SPS_nalus=31&t.readUint8(),i=this.size-this.hdr_size-6,this.SPS=[],e=0;e<this.nb_SPS_nalus;e++)this.SPS[e]={},this.SPS[e].length=t.readUint16(),this.SPS[e].nalu=t.readUint8Array(this.SPS[e].length),i-=2+this.SPS[e].length;for(this.nb_PPS_nalus=t.readUint8(),i--,this.PPS=[],e=0;e<this.nb_PPS_nalus;e++)this.PPS[e]={},this.PPS[e].length=t.readUint16(),this.PPS[e].nalu=t.readUint8Array(this.PPS[e].length),i-=2+this.PPS[e].length;i>0&&(this.ext=t.readUint8Array(i))})),l.createBoxCtor("btrt",(function(t){this.bufferSizeDB=t.readUint32(),this.maxBitrate=t.readUint32(),this.avgBitrate=t.readUint32()})),l.createBoxCtor("clap",(function(t){this.cleanApertureWidthN=t.readUint32(),this.cleanApertureWidthD=t.readUint32(),this.cleanApertureHeightN=t.readUint32(),this.cleanApertureHeightD=t.readUint32(),this.horizOffN=t.readUint32(),this.horizOffD=t.readUint32(),this.vertOffN=t.readUint32(),this.vertOffD=t.readUint32()})),l.createBoxCtor("clli",(function(t){this.max_content_light_level=t.readUint16(),this.max_pic_average_light_level=t.readUint16()})),l.createFullBoxCtor("co64",(function(t){var e,i;if(e=t.readUint32(),this.chunk_offsets=[],0===this.version)for(i=0;i<e;i++)this.chunk_offsets.push(t.readUint64())})),l.createFullBoxCtor("CoLL",(function(t){this.maxCLL=t.readUint16(),this.maxFALL=t.readUint16()})),l.createBoxCtor("colr",(function(t){if(this.colour_type=t.readString(4),"nclx"===this.colour_type){this.colour_primaries=t.readUint16(),this.transfer_characteristics=t.readUint16(),this.matrix_coefficients=t.readUint16();var e=t.readUint8();this.full_range_flag=e>>7}else("rICC"===this.colour_type||"prof"===this.colour_type)&&(this.ICC_profile=t.readUint8Array(this.size-4))})),l.createFullBoxCtor("cprt",(function(t){this.parseLanguage(t),this.notice=t.readCString()})),l.createFullBoxCtor("cslg",(function(t){0===this.version&&(this.compositionToDTSShift=t.readInt32(),this.leastDecodeToDisplayDelta=t.readInt32(),this.greatestDecodeToDisplayDelta=t.readInt32(),this.compositionStartTime=t.readInt32(),this.compositionEndTime=t.readInt32())})),l.createFullBoxCtor("ctts",(function(t){var e,i;if(e=t.readUint32(),this.sample_counts=[],this.sample_offsets=[],0===this.version)for(i=0;i<e;i++){this.sample_counts.push(t.readUint32());var s=t.readInt32();s<0&&r.warn("BoxParser","ctts box uses negative values without using version 1"),this.sample_offsets.push(s)}else if(1==this.version)for(i=0;i<e;i++)this.sample_counts.push(t.readUint32()),this.sample_offsets.push(t.readInt32())})),l.createBoxCtor("dac3",(function(t){var e=t.readUint8(),i=t.readUint8(),s=t.readUint8();this.fscod=e>>6,this.bsid=e>>1&31,this.bsmod=(1&e)<<2|i>>6&3,this.acmod=i>>3&7,this.lfeon=i>>2&1,this.bit_rate_code=3&i|s>>5&7})),l.createBoxCtor("dec3",(function(t){var e=t.readUint16();this.data_rate=e>>3,this.num_ind_sub=7&e,this.ind_subs=[];for(var i=0;i<this.num_ind_sub+1;i++){var s={};this.ind_subs.push(s);var r=t.readUint8(),n=t.readUint8(),a=t.readUint8();s.fscod=r>>6,s.bsid=r>>1&31,s.bsmod=(1&r)<<4|n>>4&15,s.acmod=n>>1&7,s.lfeon=1&n,s.num_dep_sub=a>>1&15,s.num_dep_sub>0&&(s.chan_loc=(1&a)<<8|t.readUint8())}})),l.createFullBoxCtor("dfLa",(function(t){var e=[],i=["STREAMINFO","PADDING","APPLICATION","SEEKTABLE","VORBIS_COMMENT","CUESHEET","PICTURE","RESERVED"];for(this.parseFullHeader(t);;){var s=t.readUint8(),r=Math.min(127&s,i.length-1);if(r?t.readUint8Array(t.readUint24()):(t.readUint8Array(13),this.samplerate=t.readUint32()>>12,t.readUint8Array(20)),e.push(i[r]),128&s)break}this.numMetadataBlocks=e.length+" ("+e.join(", ")+")"})),l.createBoxCtor("dimm",(function(t){this.bytessent=t.readUint64()})),l.createBoxCtor("dmax",(function(t){this.time=t.readUint32()})),l.createBoxCtor("dmed",(function(t){this.bytessent=t.readUint64()})),l.createFullBoxCtor("dref",(function(t){var e,i;this.entries=[];for(var s=t.readUint32(),r=0;r<s;r++){if((e=l.parseOneBox(t,!1,this.size-(t.getPosition()-this.start))).code!==l.OK)return;i=e.box,this.entries.push(i)}})),l.createBoxCtor("drep",(function(t){this.bytessent=t.readUint64()})),l.createFullBoxCtor("elng",(function(t){this.extended_language=t.readString(this.size-this.hdr_size)})),l.createFullBoxCtor("elst",(function(t){this.entries=[];for(var e=t.readUint32(),i=0;i<e;i++){var s={};this.entries.push(s),1===this.version?(s.segment_duration=t.readUint64(),s.media_time=t.readInt64()):(s.segment_duration=t.readUint32(),s.media_time=t.readInt32()),s.media_rate_integer=t.readInt16(),s.media_rate_fraction=t.readInt16()}})),l.createFullBoxCtor("emsg",(function(t){1==this.version?(this.timescale=t.readUint32(),this.presentation_time=t.readUint64(),this.event_duration=t.readUint32(),this.id=t.readUint32(),this.scheme_id_uri=t.readCString(),this.value=t.readCString()):(this.scheme_id_uri=t.readCString(),this.value=t.readCString(),this.timescale=t.readUint32(),this.presentation_time_delta=t.readUint32(),this.event_duration=t.readUint32(),this.id=t.readUint32());var e=this.size-this.hdr_size-(16+(this.scheme_id_uri.length+1)+(this.value.length+1));1==this.version&&(e-=4),this.message_data=t.readUint8Array(e)})),l.createFullBoxCtor("esds",(function(t){var e=t.readUint8Array(this.size-this.hdr_size);if(void 0!==d){var i=new d;this.esd=i.parseOneDescriptor(new a(e.buffer,0,a.BIG_ENDIAN))}})),l.createBoxCtor("fiel",(function(t){this.fieldCount=t.readUint8(),this.fieldOrdering=t.readUint8()})),l.createBoxCtor("frma",(function(t){this.data_format=t.readString(4)})),l.createBoxCtor("ftyp",(function(t){var e=this.size-this.hdr_size;this.major_brand=t.readString(4),this.minor_version=t.readUint32(),e-=8,this.compatible_brands=[];for(var i=0;e>=4;)this.compatible_brands[i]=t.readString(4),e-=4,i++})),l.createFullBoxCtor("hdlr",(function(t){0===this.version&&(t.readUint32(),this.handler=t.readString(4),t.readUint32Array(3),this.name=t.readString(this.size-this.hdr_size-20),"\0"===this.name[this.name.length-1]&&(this.name=this.name.slice(0,-1)))})),l.createBoxCtor("hvcC",(function(t){var e,i,s,r;this.configurationVersion=t.readUint8(),r=t.readUint8(),this.general_profile_space=r>>6,this.general_tier_flag=(32&r)>>5,this.general_profile_idc=31&r,this.general_profile_compatibility=t.readUint32(),this.general_constraint_indicator=t.readUint8Array(6),this.general_level_idc=t.readUint8(),this.min_spatial_segmentation_idc=4095&t.readUint16(),this.parallelismType=3&t.readUint8(),this.chroma_format_idc=3&t.readUint8(),this.bit_depth_luma_minus8=7&t.readUint8(),this.bit_depth_chroma_minus8=7&t.readUint8(),this.avgFrameRate=t.readUint16(),r=t.readUint8(),this.constantFrameRate=r>>6,this.numTemporalLayers=(13&r)>>3,this.temporalIdNested=(4&r)>>2,this.lengthSizeMinusOne=3&r,this.nalu_arrays=[];var n=t.readUint8();for(e=0;e<n;e++){var a=[];this.nalu_arrays.push(a),r=t.readUint8(),a.completeness=(128&r)>>7,a.nalu_type=63&r;var o=t.readUint16();for(i=0;i<o;i++){var h={};a.push(h),s=t.readUint16(),h.data=t.readUint8Array(s)}}})),l.createFullBoxCtor("iinf",(function(t){var e;0===this.version?this.entry_count=t.readUint16():this.entry_count=t.readUint32(),this.item_infos=[];for(var i=0;i<this.entry_count;i++){if((e=l.parseOneBox(t,!1,this.size-(t.getPosition()-this.start))).code!==l.OK)return;"infe"!==e.box.type&&r.error("BoxParser","Expected 'infe' box, got "+e.box.type),this.item_infos[i]=e.box}})),l.createFullBoxCtor("iloc",(function(t){var e;e=t.readUint8(),this.offset_size=e>>4&15,this.length_size=15&e,e=t.readUint8(),this.base_offset_size=e>>4&15,1===this.version||2===this.version?this.index_size=15&e:this.index_size=0,this.items=[];var i=0;if(this.version<2)i=t.readUint16();else{if(2!==this.version)throw"version of iloc box not supported";i=t.readUint32()}for(var s=0;s<i;s++){var r={};if(this.items.push(r),this.version<2)r.item_ID=t.readUint16();else{if(2!==this.version)throw"version of iloc box not supported";r.item_ID=t.readUint16()}switch(1===this.version||2===this.version?r.construction_method=15&t.readUint16():r.construction_method=0,r.data_reference_index=t.readUint16(),this.base_offset_size){case 0:r.base_offset=0;break;case 4:r.base_offset=t.readUint32();break;case 8:r.base_offset=t.readUint64();break;default:throw"Error reading base offset size"}var n=t.readUint16();r.extents=[];for(var a=0;a<n;a++){var o={};if(r.extents.push(o),1===this.version||2===this.version)switch(this.index_size){case 0:o.extent_index=0;break;case 4:o.extent_index=t.readUint32();break;case 8:o.extent_index=t.readUint64();break;default:throw"Error reading extent index"}switch(this.offset_size){case 0:o.extent_offset=0;break;case 4:o.extent_offset=t.readUint32();break;case 8:o.extent_offset=t.readUint64();break;default:throw"Error reading extent index"}switch(this.length_size){case 0:o.extent_length=0;break;case 4:o.extent_length=t.readUint32();break;case 8:o.extent_length=t.readUint64();break;default:throw"Error reading extent index"}}}})),l.createBoxCtor("imir",(function(t){var e=t.readUint8();this.reserved=e>>7,this.axis=1&e})),l.createFullBoxCtor("infe",(function(t){if(0!==this.version&&1!==this.version||(this.item_ID=t.readUint16(),this.item_protection_index=t.readUint16(),this.item_name=t.readCString(),this.content_type=t.readCString(),this.content_encoding=t.readCString()),1===this.version)return this.extension_type=t.readString(4),r.warn("BoxParser","Cannot parse extension type"),void t.seek(this.start+this.size);this.version>=2&&(2===this.version?this.item_ID=t.readUint16():3===this.version&&(this.item_ID=t.readUint32()),this.item_protection_index=t.readUint16(),this.item_type=t.readString(4),this.item_name=t.readCString(),"mime"===this.item_type?(this.content_type=t.readCString(),this.content_encoding=t.readCString()):"uri "===this.item_type&&(this.item_uri_type=t.readCString()))})),l.createFullBoxCtor("ipma",(function(t){var e,i;for(entry_count=t.readUint32(),this.associations=[],e=0;e<entry_count;e++){var s={};this.associations.push(s),this.version<1?s.id=t.readUint16():s.id=t.readUint32();var r=t.readUint8();for(s.props=[],i=0;i<r;i++){var n=t.readUint8(),a={};s.props.push(a),a.essential=(128&n)>>7==1,1&this.flags?a.property_index=(127&n)<<8|t.readUint8():a.property_index=127&n}}})),l.createFullBoxCtor("iref",(function(t){var e,i;for(this.references=[];t.getPosition()<this.start+this.size;){if((e=l.parseOneBox(t,!0,this.size-(t.getPosition()-this.start))).code!==l.OK)return;(i=0===this.version?new l.SingleItemTypeReferenceBox(e.type,e.size,e.hdr_size,e.start):new l.SingleItemTypeReferenceBoxLarge(e.type,e.size,e.hdr_size,e.start)).write===l.Box.prototype.write&&"mdat"!==i.type&&(r.warn("BoxParser",i.type+" box writing not yet implemented, keeping unparsed data in memory for later write"),i.parseDataAndRewind(t)),i.parse(t),this.references.push(i)}})),l.createBoxCtor("irot",(function(t){this.angle=3&t.readUint8()})),l.createFullBoxCtor("ispe",(function(t){this.image_width=t.readUint32(),this.image_height=t.readUint32()})),l.createFullBoxCtor("kind",(function(t){this.schemeURI=t.readCString(),this.value=t.readCString()})),l.createFullBoxCtor("leva",(function(t){var e=t.readUint8();this.levels=[];for(var i=0;i<e;i++){var s={};this.levels[i]=s,s.track_ID=t.readUint32();var n=t.readUint8();switch(s.padding_flag=n>>7,s.assignment_type=127&n,s.assignment_type){case 0:s.grouping_type=t.readString(4);break;case 1:s.grouping_type=t.readString(4),s.grouping_type_parameter=t.readUint32();break;case 2:case 3:break;case 4:s.sub_track_id=t.readUint32();break;default:r.warn("BoxParser","Unknown leva assignement type")}}})),l.createBoxCtor("lsel",(function(t){this.layer_id=t.readUint16()})),l.createBoxCtor("maxr",(function(t){this.period=t.readUint32(),this.bytes=t.readUint32()})),l.createBoxCtor("mdcv",(function(t){this.display_primaries=[],this.display_primaries[0]={},this.display_primaries[0].x=t.readUint16(),this.display_primaries[0].y=t.readUint16(),this.display_primaries[1]={},this.display_primaries[1].x=t.readUint16(),this.display_primaries[1].y=t.readUint16(),this.display_primaries[2]={},this.display_primaries[2].x=t.readUint16(),this.display_primaries[2].y=t.readUint16(),this.white_point={},this.white_point.x=t.readUint16(),this.white_point.y=t.readUint16(),this.max_display_mastering_luminance=t.readUint32(),this.min_display_mastering_luminance=t.readUint32()})),l.createFullBoxCtor("mdhd",(function(t){1==this.version?(this.creation_time=t.readUint64(),this.modification_time=t.readUint64(),this.timescale=t.readUint32(),this.duration=t.readUint64()):(this.creation_time=t.readUint32(),this.modification_time=t.readUint32(),this.timescale=t.readUint32(),this.duration=t.readUint32()),this.parseLanguage(t),t.readUint16()})),l.createFullBoxCtor("mehd",(function(t){1&this.flags&&(r.warn("BoxParser","mehd box incorrectly uses flags set to 1, converting version to 1"),this.version=1),1==this.version?this.fragment_duration=t.readUint64():this.fragment_duration=t.readUint32()})),l.createFullBoxCtor("meta",(function(t){this.boxes=[],l.ContainerBox.prototype.parse.call(this,t)})),l.createFullBoxCtor("mfhd",(function(t){this.sequence_number=t.readUint32()})),l.createFullBoxCtor("mfro",(function(t){this._size=t.readUint32()})),l.createFullBoxCtor("mvhd",(function(t){1==this.version?(this.creation_time=t.readUint64(),this.modification_time=t.readUint64(),this.timescale=t.readUint32(),this.duration=t.readUint64()):(this.creation_time=t.readUint32(),this.modification_time=t.readUint32(),this.timescale=t.readUint32(),this.duration=t.readUint32()),this.rate=t.readUint32(),this.volume=t.readUint16()>>8,t.readUint16(),t.readUint32Array(2),this.matrix=t.readUint32Array(9),t.readUint32Array(6),this.next_track_id=t.readUint32()})),l.createBoxCtor("npck",(function(t){this.packetssent=t.readUint32()})),l.createBoxCtor("nump",(function(t){this.packetssent=t.readUint64()})),l.createFullBoxCtor("padb",(function(t){var e=t.readUint32();this.padbits=[];for(var i=0;i<Math.floor((e+1)/2);i++)this.padbits=t.readUint8()})),l.createBoxCtor("pasp",(function(t){this.hSpacing=t.readUint32(),this.vSpacing=t.readUint32()})),l.createBoxCtor("payl",(function(t){this.text=t.readString(this.size-this.hdr_size)})),l.createBoxCtor("payt",(function(t){this.payloadID=t.readUint32();var e=t.readUint8();this.rtpmap_string=t.readString(e)})),l.createFullBoxCtor("pdin",(function(t){var e=(this.size-this.hdr_size)/8;this.rate=[],this.initial_delay=[];for(var i=0;i<e;i++)this.rate[i]=t.readUint32(),this.initial_delay[i]=t.readUint32()})),l.createFullBoxCtor("pitm",(function(t){0===this.version?this.item_id=t.readUint16():this.item_id=t.readUint32()})),l.createFullBoxCtor("pixi",(function(t){var e;for(this.num_channels=t.readUint8(),this.bits_per_channels=[],e=0;e<this.num_channels;e++)this.bits_per_channels[e]=t.readUint8()})),l.createBoxCtor("pmax",(function(t){this.bytes=t.readUint32()})),l.createFullBoxCtor("prft",(function(t){this.ref_track_id=t.readUint32(),this.ntp_timestamp=t.readUint64(),0===this.version?this.media_time=t.readUint32():this.media_time=t.readUint64()})),l.createFullBoxCtor("pssh",(function(t){if(this.system_id=l.parseHex16(t),this.version>0){var e=t.readUint32();this.kid=[];for(var i=0;i<e;i++)this.kid[i]=l.parseHex16(t)}var s=t.readUint32();s>0&&(this.data=t.readUint8Array(s))})),l.createFullBoxCtor("clef",(function(t){this.width=t.readUint32(),this.height=t.readUint32()})),l.createFullBoxCtor("enof",(function(t){this.width=t.readUint32(),this.height=t.readUint32()})),l.createFullBoxCtor("prof",(function(t){this.width=t.readUint32(),this.height=t.readUint32()})),l.createContainerBoxCtor("tapt",null,["clef","prof","enof"]),l.createBoxCtor("rtp ",(function(t){this.descriptionformat=t.readString(4),this.sdptext=t.readString(this.size-this.hdr_size-4)})),l.createFullBoxCtor("saio",(function(t){1&this.flags&&(this.aux_info_type=t.readUint32(),this.aux_info_type_parameter=t.readUint32());var e=t.readUint32();this.offset=[];for(var i=0;i<e;i++)0===this.version?this.offset[i]=t.readUint32():this.offset[i]=t.readUint64()})),l.createFullBoxCtor("saiz",(function(t){1&this.flags&&(this.aux_info_type=t.readUint32(),this.aux_info_type_parameter=t.readUint32()),this.default_sample_info_size=t.readUint8();var e=t.readUint32();if(this.sample_info_size=[],0===this.default_sample_info_size)for(var i=0;i<e;i++)this.sample_info_size[i]=t.readUint8()})),l.createSampleEntryCtor(l.SAMPLE_ENTRY_TYPE_METADATA,"mett",(function(t){this.parseHeader(t),this.content_encoding=t.readCString(),this.mime_format=t.readCString(),this.parseFooter(t)})),l.createSampleEntryCtor(l.SAMPLE_ENTRY_TYPE_METADATA,"metx",(function(t){this.parseHeader(t),this.content_encoding=t.readCString(),this.namespace=t.readCString(),this.schema_location=t.readCString(),this.parseFooter(t)})),l.createSampleEntryCtor(l.SAMPLE_ENTRY_TYPE_SUBTITLE,"sbtt",(function(t){this.parseHeader(t),this.content_encoding=t.readCString(),this.mime_format=t.readCString(),this.parseFooter(t)})),l.createSampleEntryCtor(l.SAMPLE_ENTRY_TYPE_SUBTITLE,"stpp",(function(t){this.parseHeader(t),this.namespace=t.readCString(),this.schema_location=t.readCString(),this.auxiliary_mime_types=t.readCString(),this.parseFooter(t)})),l.createSampleEntryCtor(l.SAMPLE_ENTRY_TYPE_SUBTITLE,"stxt",(function(t){this.parseHeader(t),this.content_encoding=t.readCString(),this.mime_format=t.readCString(),this.parseFooter(t)})),l.createSampleEntryCtor(l.SAMPLE_ENTRY_TYPE_SUBTITLE,"tx3g",(function(t){this.parseHeader(t),this.displayFlags=t.readUint32(),this.horizontal_justification=t.readInt8(),this.vertical_justification=t.readInt8(),this.bg_color_rgba=t.readUint8Array(4),this.box_record=t.readInt16Array(4),this.style_record=t.readUint8Array(12),this.parseFooter(t)})),l.createSampleEntryCtor(l.SAMPLE_ENTRY_TYPE_METADATA,"wvtt",(function(t){this.parseHeader(t),this.parseFooter(t)})),l.createSampleGroupCtor("alst",(function(t){var e,i=t.readUint16();for(this.first_output_sample=t.readUint16(),this.sample_offset=[],e=0;e<i;e++)this.sample_offset[e]=t.readUint32();var s=this.description_length-4-4*i;for(this.num_output_samples=[],this.num_total_samples=[],e=0;e<s/4;e++)this.num_output_samples[e]=t.readUint16(),this.num_total_samples[e]=t.readUint16()})),l.createSampleGroupCtor("avll",(function(t){this.layerNumber=t.readUint8(),this.accurateStatisticsFlag=t.readUint8(),this.avgBitRate=t.readUint16(),this.avgFrameRate=t.readUint16()})),l.createSampleGroupCtor("avss",(function(t){this.subSequenceIdentifier=t.readUint16(),this.layerNumber=t.readUint8();var e=t.readUint8();this.durationFlag=e>>7,this.avgRateFlag=e>>6&1,this.durationFlag&&(this.duration=t.readUint32()),this.avgRateFlag&&(this.accurateStatisticsFlag=t.readUint8(),this.avgBitRate=t.readUint16(),this.avgFrameRate=t.readUint16()),this.dependency=[];for(var i=t.readUint8(),s=0;s<i;s++){var r={};this.dependency.push(r),r.subSeqDirectionFlag=t.readUint8(),r.layerNumber=t.readUint8(),r.subSequenceIdentifier=t.readUint16()}})),l.createSampleGroupCtor("dtrt",(function(t){r.warn("BoxParser","Sample Group type: "+this.grouping_type+" not fully parsed")})),l.createSampleGroupCtor("mvif",(function(t){r.warn("BoxParser","Sample Group type: "+this.grouping_type+" not fully parsed")})),l.createSampleGroupCtor("prol",(function(t){this.roll_distance=t.readInt16()})),l.createSampleGroupCtor("rap ",(function(t){var e=t.readUint8();this.num_leading_samples_known=e>>7,this.num_leading_samples=127&e})),l.createSampleGroupCtor("rash",(function(t){if(this.operation_point_count=t.readUint16(),this.description_length!==2+(1===this.operation_point_count?2:6*this.operation_point_count)+9)r.warn("BoxParser","Mismatch in "+this.grouping_type+" sample group length"),this.data=t.readUint8Array(this.description_length-2);else{if(1===this.operation_point_count)this.target_rate_share=t.readUint16();else{this.target_rate_share=[],this.available_bitrate=[];for(var e=0;e<this.operation_point_count;e++)this.available_bitrate[e]=t.readUint32(),this.target_rate_share[e]=t.readUint16()}this.maximum_bitrate=t.readUint32(),this.minimum_bitrate=t.readUint32(),this.discard_priority=t.readUint8()}})),l.createSampleGroupCtor("roll",(function(t){this.roll_distance=t.readInt16()})),l.SampleGroupEntry.prototype.parse=function(t){r.warn("BoxParser","Unknown Sample Group type: "+this.grouping_type),this.data=t.readUint8Array(this.description_length)},l.createSampleGroupCtor("scif",(function(t){r.warn("BoxParser","Sample Group type: "+this.grouping_type+" not fully parsed")})),l.createSampleGroupCtor("scnm",(function(t){r.warn("BoxParser","Sample Group type: "+this.grouping_type+" not fully parsed")})),l.createSampleGroupCtor("seig",(function(t){this.reserved=t.readUint8();var e=t.readUint8();this.crypt_byte_block=e>>4,this.skip_byte_block=15&e,this.isProtected=t.readUint8(),this.Per_Sample_IV_Size=t.readUint8(),this.KID=l.parseHex16(t),this.constant_IV_size=0,this.constant_IV=0,1===this.isProtected&&0===this.Per_Sample_IV_Size&&(this.constant_IV_size=t.readUint8(),this.constant_IV=t.readUint8Array(this.constant_IV_size))})),l.createSampleGroupCtor("stsa",(function(t){r.warn("BoxParser","Sample Group type: "+this.grouping_type+" not fully parsed")})),l.createSampleGroupCtor("sync",(function(t){var e=t.readUint8();this.NAL_unit_type=63&e})),l.createSampleGroupCtor("tele",(function(t){var e=t.readUint8();this.level_independently_decodable=e>>7})),l.createSampleGroupCtor("tsas",(function(t){r.warn("BoxParser","Sample Group type: "+this.grouping_type+" not fully parsed")})),l.createSampleGroupCtor("tscl",(function(t){r.warn("BoxParser","Sample Group type: "+this.grouping_type+" not fully parsed")})),l.createSampleGroupCtor("vipr",(function(t){r.warn("BoxParser","Sample Group type: "+this.grouping_type+" not fully parsed")})),l.createFullBoxCtor("sbgp",(function(t){this.grouping_type=t.readString(4),1===this.version?this.grouping_type_parameter=t.readUint32():this.grouping_type_parameter=0,this.entries=[];for(var e=t.readUint32(),i=0;i<e;i++){var s={};this.entries.push(s),s.sample_count=t.readInt32(),s.group_description_index=t.readInt32()}})),l.createFullBoxCtor("schm",(function(t){this.scheme_type=t.readString(4),this.scheme_version=t.readUint32(),1&this.flags&&(this.scheme_uri=t.readString(this.size-this.hdr_size-8))})),l.createBoxCtor("sdp ",(function(t){this.sdptext=t.readString(this.size-this.hdr_size)})),l.createFullBoxCtor("sdtp",(function(t){var e,i=this.size-this.hdr_size;this.is_leading=[],this.sample_depends_on=[],this.sample_is_depended_on=[],this.sample_has_redundancy=[];for(var s=0;s<i;s++)e=t.readUint8(),this.is_leading[s]=e>>6,this.sample_depends_on[s]=e>>4&3,this.sample_is_depended_on[s]=e>>2&3,this.sample_has_redundancy[s]=3&e})),l.createFullBoxCtor("senc"),l.createFullBoxCtor("sgpd",(function(t){this.grouping_type=t.readString(4),r.debug("BoxParser","Found Sample Groups of type "+this.grouping_type),1===this.version?this.default_length=t.readUint32():this.default_length=0,this.version>=2&&(this.default_group_description_index=t.readUint32()),this.entries=[];for(var e=t.readUint32(),i=0;i<e;i++){var s;s=l[this.grouping_type+"SampleGroupEntry"]?new l[this.grouping_type+"SampleGroupEntry"](this.grouping_type):new l.SampleGroupEntry(this.grouping_type),this.entries.push(s),1===this.version&&0===this.default_length?s.description_length=t.readUint32():s.description_length=this.default_length,s.write===l.SampleGroupEntry.prototype.write&&(r.info("BoxParser","SampleGroup for type "+this.grouping_type+" writing not yet implemented, keeping unparsed data in memory for later write"),s.data=t.readUint8Array(s.description_length),t.position-=s.description_length),s.parse(t)}})),l.createFullBoxCtor("sidx",(function(t){this.reference_ID=t.readUint32(),this.timescale=t.readUint32(),0===this.version?(this.earliest_presentation_time=t.readUint32(),this.first_offset=t.readUint32()):(this.earliest_presentation_time=t.readUint64(),this.first_offset=t.readUint64()),t.readUint16(),this.references=[];for(var e=t.readUint16(),i=0;i<e;i++){var s={};this.references.push(s);var r=t.readUint32();s.reference_type=r>>31&1,s.referenced_size=2147483647&r,s.subsegment_duration=t.readUint32(),r=t.readUint32(),s.starts_with_SAP=r>>31&1,s.SAP_type=r>>28&7,s.SAP_delta_time=268435455&r}})),l.SingleItemTypeReferenceBox=function(t,e,i,s){l.Box.call(this,t,e),this.hdr_size=i,this.start=s},l.SingleItemTypeReferenceBox.prototype=new l.Box,l.SingleItemTypeReferenceBox.prototype.parse=function(t){this.from_item_ID=t.readUint16();var e=t.readUint16();this.references=[];for(var i=0;i<e;i++)this.references[i]=t.readUint16()},l.SingleItemTypeReferenceBoxLarge=function(t,e,i,s){l.Box.call(this,t,e),this.hdr_size=i,this.start=s},l.SingleItemTypeReferenceBoxLarge.prototype=new l.Box,l.SingleItemTypeReferenceBoxLarge.prototype.parse=function(t){this.from_item_ID=t.readUint32();var e=t.readUint16();this.references=[];for(var i=0;i<e;i++)this.references[i]=t.readUint32()},l.createFullBoxCtor("SmDm",(function(t){this.primaryRChromaticity_x=t.readUint16(),this.primaryRChromaticity_y=t.readUint16(),this.primaryGChromaticity_x=t.readUint16(),this.primaryGChromaticity_y=t.readUint16(),this.primaryBChromaticity_x=t.readUint16(),this.primaryBChromaticity_y=t.readUint16(),this.whitePointChromaticity_x=t.readUint16(),this.whitePointChromaticity_y=t.readUint16(),this.luminanceMax=t.readUint32(),this.luminanceMin=t.readUint32()})),l.createFullBoxCtor("smhd",(function(t){this.balance=t.readUint16(),t.readUint16()})),l.createFullBoxCtor("ssix",(function(t){this.subsegments=[];for(var e=t.readUint32(),i=0;i<e;i++){var s={};this.subsegments.push(s),s.ranges=[];for(var r=t.readUint32(),n=0;n<r;n++){var a={};s.ranges.push(a),a.level=t.readUint8(),a.range_size=t.readUint24()}}})),l.createFullBoxCtor("stco",(function(t){var e;if(e=t.readUint32(),this.chunk_offsets=[],0===this.version)for(var i=0;i<e;i++)this.chunk_offsets.push(t.readUint32())})),l.createFullBoxCtor("stdp",(function(t){var e=(this.size-this.hdr_size)/2;this.priority=[];for(var i=0;i<e;i++)this.priority[i]=t.readUint16()})),l.createFullBoxCtor("sthd"),l.createFullBoxCtor("stri",(function(t){this.switch_group=t.readUint16(),this.alternate_group=t.readUint16(),this.sub_track_id=t.readUint32();var e=(this.size-this.hdr_size-8)/4;this.attribute_list=[];for(var i=0;i<e;i++)this.attribute_list[i]=t.readUint32()})),l.createFullBoxCtor("stsc",(function(t){var e,i;if(e=t.readUint32(),this.first_chunk=[],this.samples_per_chunk=[],this.sample_description_index=[],0===this.version)for(i=0;i<e;i++)this.first_chunk.push(t.readUint32()),this.samples_per_chunk.push(t.readUint32()),this.sample_description_index.push(t.readUint32())})),l.createFullBoxCtor("stsd",(function(t){var e,i,s,n;for(this.entries=[],s=t.readUint32(),e=1;e<=s;e++){if((i=l.parseOneBox(t,!0,this.size-(t.getPosition()-this.start))).code!==l.OK)return;l[i.type+"SampleEntry"]?((n=new l[i.type+"SampleEntry"](i.size)).hdr_size=i.hdr_size,n.start=i.start):(r.warn("BoxParser","Unknown sample entry type: "+i.type),n=new l.SampleEntry(i.type,i.size,i.hdr_size,i.start)),n.write===l.SampleEntry.prototype.write&&(r.info("BoxParser","SampleEntry "+n.type+" box writing not yet implemented, keeping unparsed data in memory for later write"),n.parseDataAndRewind(t)),n.parse(t),this.entries.push(n)}})),l.createFullBoxCtor("stsg",(function(t){this.grouping_type=t.readUint32();var e=t.readUint16();this.group_description_index=[];for(var i=0;i<e;i++)this.group_description_index[i]=t.readUint32()})),l.createFullBoxCtor("stsh",(function(t){var e,i;if(e=t.readUint32(),this.shadowed_sample_numbers=[],this.sync_sample_numbers=[],0===this.version)for(i=0;i<e;i++)this.shadowed_sample_numbers.push(t.readUint32()),this.sync_sample_numbers.push(t.readUint32())})),l.createFullBoxCtor("stss",(function(t){var e,i;if(i=t.readUint32(),0===this.version)for(this.sample_numbers=[],e=0;e<i;e++)this.sample_numbers.push(t.readUint32())})),l.createFullBoxCtor("stsz",(function(t){var e;if(this.sample_sizes=[],0===this.version)for(this.sample_size=t.readUint32(),this.sample_count=t.readUint32(),e=0;e<this.sample_count;e++)0===this.sample_size?this.sample_sizes.push(t.readUint32()):this.sample_sizes[e]=this.sample_size})),l.createFullBoxCtor("stts",(function(t){var e,i,s;if(e=t.readUint32(),this.sample_counts=[],this.sample_deltas=[],0===this.version)for(i=0;i<e;i++)this.sample_counts.push(t.readUint32()),(s=t.readInt32())<0&&(r.warn("BoxParser","File uses negative stts sample delta, using value 1 instead, sync may be lost!"),s=1),this.sample_deltas.push(s)})),l.createFullBoxCtor("stvi",(function(t){var e=t.readUint32();this.single_view_allowed=3&e,this.stereo_scheme=t.readUint32();var i,s,r=t.readUint32();for(this.stereo_indication_type=t.readString(r),this.boxes=[];t.getPosition()<this.start+this.size;){if((i=l.parseOneBox(t,!1,this.size-(t.getPosition()-this.start))).code!==l.OK)return;s=i.box,this.boxes.push(s),this[s.type]=s}})),l.createBoxCtor("styp",(function(t){l.ftypBox.prototype.parse.call(this,t)})),l.createFullBoxCtor("stz2",(function(t){var e,i;if(this.sample_sizes=[],0===this.version)if(this.reserved=t.readUint24(),this.field_size=t.readUint8(),i=t.readUint32(),4===this.field_size)for(e=0;e<i;e+=2){var s=t.readUint8();this.sample_sizes[e]=s>>4&15,this.sample_sizes[e+1]=15&s}else if(8===this.field_size)for(e=0;e<i;e++)this.sample_sizes[e]=t.readUint8();else if(16===this.field_size)for(e=0;e<i;e++)this.sample_sizes[e]=t.readUint16();else r.error("BoxParser","Error in length field in stz2 box")})),l.createFullBoxCtor("subs",(function(t){var e,i,s,r;for(s=t.readUint32(),this.entries=[],e=0;e<s;e++){var n={};if(this.entries[e]=n,n.sample_delta=t.readUint32(),n.subsamples=[],(r=t.readUint16())>0)for(i=0;i<r;i++){var a={};n.subsamples.push(a),1==this.version?a.size=t.readUint32():a.size=t.readUint16(),a.priority=t.readUint8(),a.discardable=t.readUint8(),a.codec_specific_parameters=t.readUint32()}}})),l.createFullBoxCtor("tenc",(function(t){if(t.readUint8(),0===this.version)t.readUint8();else{var e=t.readUint8();this.default_crypt_byte_block=e>>4&15,this.default_skip_byte_block=15&e}this.default_isProtected=t.readUint8(),this.default_Per_Sample_IV_Size=t.readUint8(),this.default_KID=l.parseHex16(t),1===this.default_isProtected&&0===this.default_Per_Sample_IV_Size&&(this.default_constant_IV_size=t.readUint8(),this.default_constant_IV=t.readUint8Array(this.default_constant_IV_size))})),l.createFullBoxCtor("tfdt",(function(t){1==this.version?this.baseMediaDecodeTime=t.readUint64():this.baseMediaDecodeTime=t.readUint32()})),l.createFullBoxCtor("tfhd",(function(t){var e=0;this.track_id=t.readUint32(),this.size-this.hdr_size>e&&this.flags&l.TFHD_FLAG_BASE_DATA_OFFSET?(this.base_data_offset=t.readUint64(),e+=8):this.base_data_offset=0,this.size-this.hdr_size>e&&this.flags&l.TFHD_FLAG_SAMPLE_DESC?(this.default_sample_description_index=t.readUint32(),e+=4):this.default_sample_description_index=0,this.size-this.hdr_size>e&&this.flags&l.TFHD_FLAG_SAMPLE_DUR?(this.default_sample_duration=t.readUint32(),e+=4):this.default_sample_duration=0,this.size-this.hdr_size>e&&this.flags&l.TFHD_FLAG_SAMPLE_SIZE?(this.default_sample_size=t.readUint32(),e+=4):this.default_sample_size=0,this.size-this.hdr_size>e&&this.flags&l.TFHD_FLAG_SAMPLE_FLAGS?(this.default_sample_flags=t.readUint32(),e+=4):this.default_sample_flags=0})),l.createFullBoxCtor("tfra",(function(t){this.track_ID=t.readUint32(),t.readUint24();var e=t.readUint8();this.length_size_of_traf_num=e>>4&3,this.length_size_of_trun_num=e>>2&3,this.length_size_of_sample_num=3&e,this.entries=[];for(var i=t.readUint32(),s=0;s<i;s++)1===this.version?(this.time=t.readUint64(),this.moof_offset=t.readUint64()):(this.time=t.readUint32(),this.moof_offset=t.readUint32()),this.traf_number=t["readUint"+8*(this.length_size_of_traf_num+1)](),this.trun_number=t["readUint"+8*(this.length_size_of_trun_num+1)](),this.sample_number=t["readUint"+8*(this.length_size_of_sample_num+1)]()})),l.createFullBoxCtor("tkhd",(function(t){1==this.version?(this.creation_time=t.readUint64(),this.modification_time=t.readUint64(),this.track_id=t.readUint32(),t.readUint32(),this.duration=t.readUint64()):(this.creation_time=t.readUint32(),this.modification_time=t.readUint32(),this.track_id=t.readUint32(),t.readUint32(),this.duration=t.readUint32()),t.readUint32Array(2),this.layer=t.readInt16(),this.alternate_group=t.readInt16(),this.volume=t.readInt16()>>8,t.readUint16(),this.matrix=t.readInt32Array(9),this.width=t.readUint32(),this.height=t.readUint32()})),l.createBoxCtor("tmax",(function(t){this.time=t.readUint32()})),l.createBoxCtor("tmin",(function(t){this.time=t.readUint32()})),l.createBoxCtor("totl",(function(t){this.bytessent=t.readUint32()})),l.createBoxCtor("tpay",(function(t){this.bytessent=t.readUint32()})),l.createBoxCtor("tpyl",(function(t){this.bytessent=t.readUint64()})),l.TrackGroupTypeBox.prototype.parse=function(t){this.parseFullHeader(t),this.track_group_id=t.readUint32()},l.createTrackGroupCtor("msrc"),l.TrackReferenceTypeBox=function(t,e,i,s){l.Box.call(this,t,e),this.hdr_size=i,this.start=s},l.TrackReferenceTypeBox.prototype=new l.Box,l.TrackReferenceTypeBox.prototype.parse=function(t){this.track_ids=t.readUint32Array((this.size-this.hdr_size)/4)},l.trefBox.prototype.parse=function(t){for(var e,i;t.getPosition()<this.start+this.size;){if((e=l.parseOneBox(t,!0,this.size-(t.getPosition()-this.start))).code!==l.OK)return;(i=new l.TrackReferenceTypeBox(e.type,e.size,e.hdr_size,e.start)).write===l.Box.prototype.write&&"mdat"!==i.type&&(r.info("BoxParser","TrackReference "+i.type+" box writing not yet implemented, keeping unparsed data in memory for later write"),i.parseDataAndRewind(t)),i.parse(t),this.boxes.push(i)}},l.createFullBoxCtor("trep",(function(t){for(this.track_ID=t.readUint32(),this.boxes=[];t.getPosition()<this.start+this.size;){if(ret=l.parseOneBox(t,!1,this.size-(t.getPosition()-this.start)),ret.code!==l.OK)return;box=ret.box,this.boxes.push(box)}})),l.createFullBoxCtor("trex",(function(t){this.track_id=t.readUint32(),this.default_sample_description_index=t.readUint32(),this.default_sample_duration=t.readUint32(),this.default_sample_size=t.readUint32(),this.default_sample_flags=t.readUint32()})),l.createBoxCtor("trpy",(function(t){this.bytessent=t.readUint64()})),l.createFullBoxCtor("trun",(function(t){var e=0;if(this.sample_count=t.readUint32(),e+=4,this.size-this.hdr_size>e&&this.flags&l.TRUN_FLAGS_DATA_OFFSET?(this.data_offset=t.readInt32(),e+=4):this.data_offset=0,this.size-this.hdr_size>e&&this.flags&l.TRUN_FLAGS_FIRST_FLAG?(this.first_sample_flags=t.readUint32(),e+=4):this.first_sample_flags=0,this.sample_duration=[],this.sample_size=[],this.sample_flags=[],this.sample_composition_time_offset=[],this.size-this.hdr_size>e)for(var i=0;i<this.sample_count;i++)this.flags&l.TRUN_FLAGS_DURATION&&(this.sample_duration[i]=t.readUint32()),this.flags&l.TRUN_FLAGS_SIZE&&(this.sample_size[i]=t.readUint32()),this.flags&l.TRUN_FLAGS_FLAGS&&(this.sample_flags[i]=t.readUint32()),this.flags&l.TRUN_FLAGS_CTS_OFFSET&&(0===this.version?this.sample_composition_time_offset[i]=t.readUint32():this.sample_composition_time_offset[i]=t.readInt32())})),l.createFullBoxCtor("tsel",(function(t){this.switch_group=t.readUint32();var e=(this.size-this.hdr_size-4)/4;this.attribute_list=[];for(var i=0;i<e;i++)this.attribute_list[i]=t.readUint32()})),l.createFullBoxCtor("txtC",(function(t){this.config=t.readCString()})),l.createFullBoxCtor("url ",(function(t){1!==this.flags&&(this.location=t.readCString())})),l.createFullBoxCtor("urn ",(function(t){this.name=t.readCString(),this.size-this.hdr_size-this.name.length-1>0&&(this.location=t.readCString())})),l.createUUIDBox("a5d40b30e81411ddba2f0800200c9a66",!0,!1,(function(t){this.LiveServerManifest=t.readString(this.size-this.hdr_size).replace(/&/g,"&amp;").replace(/</g,"&lt;").replace(/>/g,"&gt;").replace(/"/g,"&quot;").replace(/'/g,"&#039;")})),l.createUUIDBox("d08a4f1810f34a82b6c832d8aba183d3",!0,!1,(function(t){this.system_id=l.parseHex16(t);var e=t.readUint32();e>0&&(this.data=t.readUint8Array(e))})),l.createUUIDBox("a2394f525a9b4f14a2446c427c648df4",!0,!1),l.createUUIDBox("8974dbce7be74c5184f97148f9882554",!0,!1,(function(t){this.default_AlgorithmID=t.readUint24(),this.default_IV_size=t.readUint8(),this.default_KID=l.parseHex16(t)})),l.createUUIDBox("d4807ef2ca3946958e5426cb9e46a79f",!0,!1,(function(t){this.fragment_count=t.readUint8(),this.entries=[];for(var e=0;e<this.fragment_count;e++){var i={},s=0,r=0;1===this.version?(s=t.readUint64(),r=t.readUint64()):(s=t.readUint32(),r=t.readUint32()),i.absolute_time=s,i.absolute_duration=r,this.entries.push(i)}})),l.createUUIDBox("6d1d9b0542d544e680e2141daff757b2",!0,!1,(function(t){1===this.version?(this.absolute_time=t.readUint64(),this.duration=t.readUint64()):(this.absolute_time=t.readUint32(),this.duration=t.readUint32())})),l.createFullBoxCtor("vmhd",(function(t){this.graphicsmode=t.readUint16(),this.opcolor=t.readUint16Array(3)})),l.createFullBoxCtor("vpcC",(function(t){var e;1===this.version?(this.profile=t.readUint8(),this.level=t.readUint8(),e=t.readUint8(),this.bitDepth=e>>4,this.chromaSubsampling=e>>1&7,this.videoFullRangeFlag=1&e,this.colourPrimaries=t.readUint8(),this.transferCharacteristics=t.readUint8(),this.matrixCoefficients=t.readUint8(),this.codecIntializationDataSize=t.readUint16(),this.codecIntializationData=t.readUint8Array(this.codecIntializationDataSize)):(this.profile=t.readUint8(),this.level=t.readUint8(),e=t.readUint8(),this.bitDepth=e>>4&15,this.colorSpace=15&e,e=t.readUint8(),this.chromaSubsampling=e>>4&15,this.transferFunction=e>>1&7,this.videoFullRangeFlag=1&e,this.codecIntializationDataSize=t.readUint16(),this.codecIntializationData=t.readUint8Array(this.codecIntializationDataSize))})),l.createBoxCtor("vttC",(function(t){this.text=t.readString(this.size-this.hdr_size)})),l.SampleEntry.prototype.isVideo=function(){return!1},l.SampleEntry.prototype.isAudio=function(){return!1},l.SampleEntry.prototype.isSubtitle=function(){return!1},l.SampleEntry.prototype.isMetadata=function(){return!1},l.SampleEntry.prototype.isHint=function(){return!1},l.SampleEntry.prototype.getCodec=function(){return this.type.replace(".","")},l.SampleEntry.prototype.getWidth=function(){return""},l.SampleEntry.prototype.getHeight=function(){return""},l.SampleEntry.prototype.getChannelCount=function(){return""},l.SampleEntry.prototype.getSampleRate=function(){return""},l.SampleEntry.prototype.getSampleSize=function(){return""},l.VisualSampleEntry.prototype.isVideo=function(){return!0},l.VisualSampleEntry.prototype.getWidth=function(){return this.width},l.VisualSampleEntry.prototype.getHeight=function(){return this.height},l.AudioSampleEntry.prototype.isAudio=function(){return!0},l.AudioSampleEntry.prototype.getChannelCount=function(){return this.channel_count},l.AudioSampleEntry.prototype.getSampleRate=function(){return this.samplerate},l.AudioSampleEntry.prototype.getSampleSize=function(){return this.samplesize},l.SubtitleSampleEntry.prototype.isSubtitle=function(){return!0},l.MetadataSampleEntry.prototype.isMetadata=function(){return!0},l.decimalToHex=function(t,e){var i=Number(t).toString(16);for(e=null==e?e=2:e;i.length<e;)i="0"+i;return i},l.avc1SampleEntry.prototype.getCodec=l.avc2SampleEntry.prototype.getCodec=l.avc3SampleEntry.prototype.getCodec=l.avc4SampleEntry.prototype.getCodec=function(){var t=l.SampleEntry.prototype.getCodec.call(this);return this.avcC?t+"."+l.decimalToHex(this.avcC.AVCProfileIndication)+l.decimalToHex(this.avcC.profile_compatibility)+l.decimalToHex(this.avcC.AVCLevelIndication):t},l.hev1SampleEntry.prototype.getCodec=l.hvc1SampleEntry.prototype.getCodec=function(){var t,e=l.SampleEntry.prototype.getCodec.call(this);if(this.hvcC){switch(e+=".",this.hvcC.general_profile_space){case 0:e+="";break;case 1:e+="A";break;case 2:e+="B";break;case 3:e+="C"}e+=this.hvcC.general_profile_idc,e+=".";var i=this.hvcC.general_profile_compatibility,s=0;for(t=0;t<32&&(s|=1&i,31!=t);t++)s<<=1,i>>=1;e+=l.decimalToHex(s,0),e+=".",0===this.hvcC.general_tier_flag?e+="L":e+="H",e+=this.hvcC.general_level_idc;var r=!1,n="";for(t=5;t>=0;t--)(this.hvcC.general_constraint_indicator[t]||r)&&(n="."+l.decimalToHex(this.hvcC.general_constraint_indicator[t],0)+n,r=!0);e+=n}return e},l.mp4aSampleEntry.prototype.getCodec=function(){var t=l.SampleEntry.prototype.getCodec.call(this);if(this.esds&&this.esds.esd){var e=this.esds.esd.getOTI(),i=this.esds.esd.getAudioConfig();return t+"."+l.decimalToHex(e)+(i?"."+i:"")}return t},l.stxtSampleEntry.prototype.getCodec=function(){var t=l.SampleEntry.prototype.getCodec.call(this);return this.mime_format?t+"."+this.mime_format:t},l.av01SampleEntry.prototype.getCodec=function(){var t,e=l.SampleEntry.prototype.getCodec.call(this);return 2===this.av1C.seq_profile&&1===this.av1C.high_bitdepth?t=1===this.av1C.twelve_bit?"12":"10":this.av1C.seq_profile<=2&&(t=1===this.av1C.high_bitdepth?"10":"08"),e+"."+this.av1C.seq_profile+"."+this.av1C.seq_level_idx_0+(this.av1C.seq_tier_0?"H":"M")+"."+t},l.Box.prototype.writeHeader=function(t,e){this.size+=8,this.size>o&&(this.size+=8),"uuid"===this.type&&(this.size+=16),r.debug("BoxWriter","Writing box "+this.type+" of size: "+this.size+" at position "+t.getPosition()+(e||"")),this.size>o?t.writeUint32(1):(this.sizePosition=t.getPosition(),t.writeUint32(this.size)),t.writeString(this.type,null,4),"uuid"===this.type&&t.writeUint8Array(this.uuid),this.size>o&&t.writeUint64(this.size)},l.FullBox.prototype.writeHeader=function(t){this.size+=4,l.Box.prototype.writeHeader.call(this,t," v="+this.version+" f="+this.flags),t.writeUint8(this.version),t.writeUint24(this.flags)},l.Box.prototype.write=function(t){"mdat"===this.type?this.data&&(this.size=this.data.length,this.writeHeader(t),t.writeUint8Array(this.data)):(this.size=this.data?this.data.length:0,this.writeHeader(t),this.data&&t.writeUint8Array(this.data))},l.ContainerBox.prototype.write=function(t){this.size=0,this.writeHeader(t);for(var e=0;e<this.boxes.length;e++)this.boxes[e]&&(this.boxes[e].write(t),this.size+=this.boxes[e].size);r.debug("BoxWriter","Adjusting box "+this.type+" with new size "+this.size),t.adjustUint32(this.sizePosition,this.size)},l.TrackReferenceTypeBox.prototype.write=function(t){this.size=4*this.track_ids.length,this.writeHeader(t),t.writeUint32Array(this.track_ids)},l.avcCBox.prototype.write=function(t){var e;for(this.size=7,e=0;e<this.SPS.length;e++)this.size+=2+this.SPS[e].length;for(e=0;e<this.PPS.length;e++)this.size+=2+this.PPS[e].length;for(this.ext&&(this.size+=this.ext.length),this.writeHeader(t),t.writeUint8(this.configurationVersion),t.writeUint8(this.AVCProfileIndication),t.writeUint8(this.profile_compatibility),t.writeUint8(this.AVCLevelIndication),t.writeUint8(this.lengthSizeMinusOne+252),t.writeUint8(this.SPS.length+224),e=0;e<this.SPS.length;e++)t.writeUint16(this.SPS[e].length),t.writeUint8Array(this.SPS[e].nalu);for(t.writeUint8(this.PPS.length),e=0;e<this.PPS.length;e++)t.writeUint16(this.PPS[e].length),t.writeUint8Array(this.PPS[e].nalu);this.ext&&t.writeUint8Array(this.ext)},l.co64Box.prototype.write=function(t){var e;for(this.version=0,this.flags=0,this.size=4+8*this.chunk_offsets.length,this.writeHeader(t),t.writeUint32(this.chunk_offsets.length),e=0;e<this.chunk_offsets.length;e++)t.writeUint64(this.chunk_offsets[e])},l.cslgBox.prototype.write=function(t){this.version=0,this.flags=0,this.size=20,this.writeHeader(t),t.writeInt32(this.compositionToDTSShift),t.writeInt32(this.leastDecodeToDisplayDelta),t.writeInt32(this.greatestDecodeToDisplayDelta),t.writeInt32(this.compositionStartTime),t.writeInt32(this.compositionEndTime)},l.cttsBox.prototype.write=function(t){var e;for(this.version=0,this.flags=0,this.size=4+8*this.sample_counts.length,this.writeHeader(t),t.writeUint32(this.sample_counts.length),e=0;e<this.sample_counts.length;e++)t.writeUint32(this.sample_counts[e]),1===this.version?t.writeInt32(this.sample_offsets[e]):t.writeUint32(this.sample_offsets[e])},l.drefBox.prototype.write=function(t){this.version=0,this.flags=0,this.size=4,this.writeHeader(t),t.writeUint32(this.entries.length);for(var e=0;e<this.entries.length;e++)this.entries[e].write(t),this.size+=this.entries[e].size;r.debug("BoxWriter","Adjusting box "+this.type+" with new size "+this.size),t.adjustUint32(this.sizePosition,this.size)},l.elngBox.prototype.write=function(t){this.version=0,this.flags=0,this.size=this.extended_language.length,this.writeHeader(t),t.writeString(this.extended_language)},l.elstBox.prototype.write=function(t){this.version=0,this.flags=0,this.size=4+12*this.entries.length,this.writeHeader(t),t.writeUint32(this.entries.length);for(var e=0;e<this.entries.length;e++){var i=this.entries[e];t.writeUint32(i.segment_duration),t.writeInt32(i.media_time),t.writeInt16(i.media_rate_integer),t.writeInt16(i.media_rate_fraction)}},l.emsgBox.prototype.write=function(t){this.version=0,this.flags=0,this.size=16+this.message_data.length+(this.scheme_id_uri.length+1)+(this.value.length+1),this.writeHeader(t),t.writeCString(this.scheme_id_uri),t.writeCString(this.value),t.writeUint32(this.timescale),t.writeUint32(this.presentation_time_delta),t.writeUint32(this.event_duration),t.writeUint32(this.id),t.writeUint8Array(this.message_data)},l.ftypBox.prototype.write=function(t){this.size=8+4*this.compatible_brands.length,this.writeHeader(t),t.writeString(this.major_brand,null,4),t.writeUint32(this.minor_version);for(var e=0;e<this.compatible_brands.length;e++)t.writeString(this.compatible_brands[e],null,4)},l.hdlrBox.prototype.write=function(t){this.size=20+this.name.length+1,this.version=0,this.flags=0,this.writeHeader(t),t.writeUint32(0),t.writeString(this.handler,null,4),t.writeUint32(0),t.writeUint32(0),t.writeUint32(0),t.writeCString(this.name)},l.kindBox.prototype.write=function(t){this.version=0,this.flags=0,this.size=this.schemeURI.length+1+(this.value.length+1),this.writeHeader(t),t.writeCString(this.schemeURI),t.writeCString(this.value)},l.mdhdBox.prototype.write=function(t){this.size=20,this.flags=0,this.version=0,this.writeHeader(t),t.writeUint32(this.creation_time),t.writeUint32(this.modification_time),t.writeUint32(this.timescale),t.writeUint32(this.duration),t.writeUint16(this.language),t.writeUint16(0)},l.mehdBox.prototype.write=function(t){this.version=0,this.flags=0,this.size=4,this.writeHeader(t),t.writeUint32(this.fragment_duration)},l.mfhdBox.prototype.write=function(t){this.version=0,this.flags=0,this.size=4,this.writeHeader(t),t.writeUint32(this.sequence_number)},l.mvhdBox.prototype.write=function(t){this.version=0,this.flags=0,this.size=96,this.writeHeader(t),t.writeUint32(this.creation_time),t.writeUint32(this.modification_time),t.writeUint32(this.timescale),t.writeUint32(this.duration),t.writeUint32(this.rate),t.writeUint16(this.volume<<8),t.writeUint16(0),t.writeUint32(0),t.writeUint32(0),t.writeUint32Array(this.matrix),t.writeUint32(0),t.writeUint32(0),t.writeUint32(0),t.writeUint32(0),t.writeUint32(0),t.writeUint32(0),t.writeUint32(this.next_track_id)},l.SampleEntry.prototype.writeHeader=function(t){this.size=8,l.Box.prototype.writeHeader.call(this,t),t.writeUint8(0),t.writeUint8(0),t.writeUint8(0),t.writeUint8(0),t.writeUint8(0),t.writeUint8(0),t.writeUint16(this.data_reference_index)},l.SampleEntry.prototype.writeFooter=function(t){for(var e=0;e<this.boxes.length;e++)this.boxes[e].write(t),this.size+=this.boxes[e].size;r.debug("BoxWriter","Adjusting box "+this.type+" with new size "+this.size),t.adjustUint32(this.sizePosition,this.size)},l.SampleEntry.prototype.write=function(t){this.writeHeader(t),t.writeUint8Array(this.data),this.size+=this.data.length,r.debug("BoxWriter","Adjusting box "+this.type+" with new size "+this.size),t.adjustUint32(this.sizePosition,this.size)},l.VisualSampleEntry.prototype.write=function(t){this.writeHeader(t),this.size+=70,t.writeUint16(0),t.writeUint16(0),t.writeUint32(0),t.writeUint32(0),t.writeUint32(0),t.writeUint16(this.width),t.writeUint16(this.height),t.writeUint32(this.horizresolution),t.writeUint32(this.vertresolution),t.writeUint32(0),t.writeUint16(this.frame_count),t.writeUint8(Math.min(31,this.compressorname.length)),t.writeString(this.compressorname,null,31),t.writeUint16(this.depth),t.writeInt16(-1),this.writeFooter(t)},l.AudioSampleEntry.prototype.write=function(t){this.writeHeader(t),this.size+=20,t.writeUint32(0),t.writeUint32(0),t.writeUint16(this.channel_count),t.writeUint16(this.samplesize),t.writeUint16(0),t.writeUint16(0),t.writeUint32(this.samplerate<<16),this.writeFooter(t)},l.stppSampleEntry.prototype.write=function(t){this.writeHeader(t),this.size+=this.namespace.length+1+this.schema_location.length+1+this.auxiliary_mime_types.length+1,t.writeCString(this.namespace),t.writeCString(this.schema_location),t.writeCString(this.auxiliary_mime_types),this.writeFooter(t)},l.SampleGroupEntry.prototype.write=function(t){t.writeUint8Array(this.data)},l.sbgpBox.prototype.write=function(t){this.version=1,this.flags=0,this.size=12+8*this.entries.length,this.writeHeader(t),t.writeString(this.grouping_type,null,4),t.writeUint32(this.grouping_type_parameter),t.writeUint32(this.entries.length);for(var e=0;e<this.entries.length;e++){var i=this.entries[e];t.writeInt32(i.sample_count),t.writeInt32(i.group_description_index)}},l.sgpdBox.prototype.write=function(t){var e,i;for(this.flags=0,this.size=12,e=0;e<this.entries.length;e++)i=this.entries[e],1===this.version&&(0===this.default_length&&(this.size+=4),this.size+=i.data.length);for(this.writeHeader(t),t.writeString(this.grouping_type,null,4),1===this.version&&t.writeUint32(this.default_length),this.version>=2&&t.writeUint32(this.default_sample_description_index),t.writeUint32(this.entries.length),e=0;e<this.entries.length;e++)i=this.entries[e],1===this.version&&0===this.default_length&&t.writeUint32(i.description_length),i.write(t)},l.sidxBox.prototype.write=function(t){this.version=0,this.flags=0,this.size=20+12*this.references.length,this.writeHeader(t),t.writeUint32(this.reference_ID),t.writeUint32(this.timescale),t.writeUint32(this.earliest_presentation_time),t.writeUint32(this.first_offset),t.writeUint16(0),t.writeUint16(this.references.length);for(var e=0;e<this.references.length;e++){var i=this.references[e];t.writeUint32(i.reference_type<<31|i.referenced_size),t.writeUint32(i.subsegment_duration),t.writeUint32(i.starts_with_SAP<<31|i.SAP_type<<28|i.SAP_delta_time)}},l.stcoBox.prototype.write=function(t){this.version=0,this.flags=0,this.size=4+4*this.chunk_offsets.length,this.writeHeader(t),t.writeUint32(this.chunk_offsets.length),t.writeUint32Array(this.chunk_offsets)},l.stscBox.prototype.write=function(t){var e;for(this.version=0,this.flags=0,this.size=4+12*this.first_chunk.length,this.writeHeader(t),t.writeUint32(this.first_chunk.length),e=0;e<this.first_chunk.length;e++)t.writeUint32(this.first_chunk[e]),t.writeUint32(this.samples_per_chunk[e]),t.writeUint32(this.sample_description_index[e])},l.stsdBox.prototype.write=function(t){var e;for(this.version=0,this.flags=0,this.size=0,this.writeHeader(t),t.writeUint32(this.entries.length),this.size+=4,e=0;e<this.entries.length;e++)this.entries[e].write(t),this.size+=this.entries[e].size;r.debug("BoxWriter","Adjusting box "+this.type+" with new size "+this.size),t.adjustUint32(this.sizePosition,this.size)},l.stshBox.prototype.write=function(t){var e;for(this.version=0,this.flags=0,this.size=4+8*this.shadowed_sample_numbers.length,this.writeHeader(t),t.writeUint32(this.shadowed_sample_numbers.length),e=0;e<this.shadowed_sample_numbers.length;e++)t.writeUint32(this.shadowed_sample_numbers[e]),t.writeUint32(this.sync_sample_numbers[e])},l.stssBox.prototype.write=function(t){this.version=0,this.flags=0,this.size=4+4*this.sample_numbers.length,this.writeHeader(t),t.writeUint32(this.sample_numbers.length),t.writeUint32Array(this.sample_numbers)},l.stszBox.prototype.write=function(t){var e,i=!0;if(this.version=0,this.flags=0,this.sample_sizes.length>0)for(e=0;e+1<this.sample_sizes.length;){if(this.sample_sizes[e+1]!==this.sample_sizes[0]){i=!1;break}e++}else i=!1;this.size=8,i||(this.size+=4*this.sample_sizes.length),this.writeHeader(t),i?t.writeUint32(this.sample_sizes[0]):t.writeUint32(0),t.writeUint32(this.sample_sizes.length),i||t.writeUint32Array(this.sample_sizes)},l.sttsBox.prototype.write=function(t){var e;for(this.version=0,this.flags=0,this.size=4+8*this.sample_counts.length,this.writeHeader(t),t.writeUint32(this.sample_counts.length),e=0;e<this.sample_counts.length;e++)t.writeUint32(this.sample_counts[e]),t.writeUint32(this.sample_deltas[e])},l.tfdtBox.prototype.write=function(t){var e=Math.pow(2,32)-1;this.version=this.baseMediaDecodeTime>e?1:0,this.flags=0,this.size=4,1===this.version&&(this.size+=4),this.writeHeader(t),1===this.version?t.writeUint64(this.baseMediaDecodeTime):t.writeUint32(this.baseMediaDecodeTime)},l.tfhdBox.prototype.write=function(t){this.version=0,this.size=4,this.flags&l.TFHD_FLAG_BASE_DATA_OFFSET&&(this.size+=8),this.flags&l.TFHD_FLAG_SAMPLE_DESC&&(this.size+=4),this.flags&l.TFHD_FLAG_SAMPLE_DUR&&(this.size+=4),this.flags&l.TFHD_FLAG_SAMPLE_SIZE&&(this.size+=4),this.flags&l.TFHD_FLAG_SAMPLE_FLAGS&&(this.size+=4),this.writeHeader(t),t.writeUint32(this.track_id),this.flags&l.TFHD_FLAG_BASE_DATA_OFFSET&&t.writeUint64(this.base_data_offset),this.flags&l.TFHD_FLAG_SAMPLE_DESC&&t.writeUint32(this.default_sample_description_index),this.flags&l.TFHD_FLAG_SAMPLE_DUR&&t.writeUint32(this.default_sample_duration),this.flags&l.TFHD_FLAG_SAMPLE_SIZE&&t.writeUint32(this.default_sample_size),this.flags&l.TFHD_FLAG_SAMPLE_FLAGS&&t.writeUint32(this.default_sample_flags)},l.tkhdBox.prototype.write=function(t){this.version=0,this.size=80,this.writeHeader(t),t.writeUint32(this.creation_time),t.writeUint32(this.modification_time),t.writeUint32(this.track_id),t.writeUint32(0),t.writeUint32(this.duration),t.writeUint32(0),t.writeUint32(0),t.writeInt16(this.layer),t.writeInt16(this.alternate_group),t.writeInt16(this.volume<<8),t.writeUint16(0),t.writeInt32Array(this.matrix),t.writeUint32(this.width),t.writeUint32(this.height)},l.trexBox.prototype.write=function(t){this.version=0,this.flags=0,this.size=20,this.writeHeader(t),t.writeUint32(this.track_id),t.writeUint32(this.default_sample_description_index),t.writeUint32(this.default_sample_duration),t.writeUint32(this.default_sample_size),t.writeUint32(this.default_sample_flags)},l.trunBox.prototype.write=function(t){this.version=0,this.size=4,this.flags&l.TRUN_FLAGS_DATA_OFFSET&&(this.size+=4),this.flags&l.TRUN_FLAGS_FIRST_FLAG&&(this.size+=4),this.flags&l.TRUN_FLAGS_DURATION&&(this.size+=4*this.sample_duration.length),this.flags&l.TRUN_FLAGS_SIZE&&(this.size+=4*this.sample_size.length),this.flags&l.TRUN_FLAGS_FLAGS&&(this.size+=4*this.sample_flags.length),this.flags&l.TRUN_FLAGS_CTS_OFFSET&&(this.size+=4*this.sample_composition_time_offset.length),this.writeHeader(t),t.writeUint32(this.sample_count),this.flags&l.TRUN_FLAGS_DATA_OFFSET&&(this.data_offset_position=t.getPosition(),t.writeInt32(this.data_offset)),this.flags&l.TRUN_FLAGS_FIRST_FLAG&&t.writeUint32(this.first_sample_flags);for(var e=0;e<this.sample_count;e++)this.flags&l.TRUN_FLAGS_DURATION&&t.writeUint32(this.sample_duration[e]),this.flags&l.TRUN_FLAGS_SIZE&&t.writeUint32(this.sample_size[e]),this.flags&l.TRUN_FLAGS_FLAGS&&t.writeUint32(this.sample_flags[e]),this.flags&l.TRUN_FLAGS_CTS_OFFSET&&(0===this.version?t.writeUint32(this.sample_composition_time_offset[e]):t.writeInt32(this.sample_composition_time_offset[e]))},l["url Box"].prototype.write=function(t){this.version=0,this.location?(this.flags=0,this.size=this.location.length+1):(this.flags=1,this.size=0),this.writeHeader(t),this.location&&t.writeCString(this.location)},l["urn Box"].prototype.write=function(t){this.version=0,this.flags=0,this.size=this.name.length+1+(this.location?this.location.length+1:0),this.writeHeader(t),t.writeCString(this.name),this.location&&t.writeCString(this.location)},l.vmhdBox.prototype.write=function(t){this.version=0,this.flags=1,this.size=8,this.writeHeader(t),t.writeUint16(this.graphicsmode),t.writeUint16Array(this.opcolor)},l.cttsBox.prototype.unpack=function(t){var e,i,s;for(s=0,e=0;e<this.sample_counts.length;e++)for(i=0;i<this.sample_counts[e];i++)t[s].pts=t[s].dts+this.sample_offsets[e],s++},l.sttsBox.prototype.unpack=function(t){var e,i,s;for(s=0,e=0;e<this.sample_counts.length;e++)for(i=0;i<this.sample_counts[e];i++)t[s].dts=0===s?0:t[s-1].dts+this.sample_deltas[e],s++},l.stcoBox.prototype.unpack=function(t){var e;for(e=0;e<this.chunk_offsets.length;e++)t[e].offset=this.chunk_offsets[e]},l.stscBox.prototype.unpack=function(t){var e,i,s,r,n;for(r=0,n=0,e=0;e<this.first_chunk.length;e++)for(i=0;i<(e+1<this.first_chunk.length?this.first_chunk[e+1]:1/0);i++)for(n++,s=0;s<this.samples_per_chunk[e];s++){if(!t[r])return;t[r].description_index=this.sample_description_index[e],t[r].chunk_index=n,r++}},l.stszBox.prototype.unpack=function(t){var e;for(e=0;e<this.sample_sizes.length;e++)t[e].size=this.sample_sizes[e]},l.DIFF_BOXES_PROP_NAMES=["boxes","entries","references","subsamples","items","item_infos","extents","associations","subsegments","ranges","seekLists","seekPoints","esd","levels"],l.DIFF_PRIMITIVE_ARRAY_PROP_NAMES=["compatible_brands","matrix","opcolor","sample_counts","sample_counts","sample_deltas","first_chunk","samples_per_chunk","sample_sizes","chunk_offsets","sample_offsets","sample_description_index","sample_duration"],l.boxEqualFields=function(t,e){if(t&&!e)return!1;var i;for(i in t)if(!(l.DIFF_BOXES_PROP_NAMES.indexOf(i)>-1||t[i]instanceof l.Box||e[i]instanceof l.Box||void 0===t[i]||void 0===e[i]||"function"==typeof t[i]||"function"==typeof e[i]||t.subBoxNames&&t.subBoxNames.indexOf(i.slice(0,4))>-1||e.subBoxNames&&e.subBoxNames.indexOf(i.slice(0,4))>-1||"data"===i||"start"===i||"size"===i||"creation_time"===i||"modification_time"===i||l.DIFF_PRIMITIVE_ARRAY_PROP_NAMES.indexOf(i)>-1||t[i]===e[i]))return!1;return!0},l.boxEqual=function(t,e){if(!l.boxEqualFields(t,e))return!1;for(var i=0;i<l.DIFF_BOXES_PROP_NAMES.length;i++){var s=l.DIFF_BOXES_PROP_NAMES[i];if(t[s]&&e[s]&&!l.boxEqual(t[s],e[s]))return!1}return!0};var p=function(){};p.prototype.parseSample=function(t){var e,i={};i.resources=[];var s=new n(t.data.buffer);if(t.subsamples&&0!==t.subsamples.length){if(i.documentString=s.readString(t.subsamples[0].size),t.subsamples.length>1)for(e=1;e<t.subsamples.length;e++)i.resources[e]=s.readUint8Array(t.subsamples[e].size)}else i.documentString=s.readString(t.data.length);return"undefined"!=typeof DOMParser&&(i.document=(new DOMParser).parseFromString(i.documentString,"application/xml")),i};var f=function(){};f.prototype.parseSample=function(t){return new n(t.data.buffer).readString(t.data.length)},f.prototype.parseConfig=function(t){var e=new n(t.buffer);return e.readUint32(),e.readCString()},t.XMLSubtitlein4Parser=p,t.Textin4Parser=f;var u=function(t){this.stream=t||new h,this.boxes=[],this.mdats=[],this.moofs=[],this.isProgressive=!1,this.moovStartFound=!1,this.onMoovStart=null,this.moovStartSent=!1,this.onReady=null,this.readySent=!1,this.onSegment=null,this.onSamples=null,this.onError=null,this.sampleListBuilt=!1,this.fragmentedTracks=[],this.extractedTracks=[],this.isFragmentationInitialized=!1,this.sampleProcessingStarted=!1,this.nextMoofNumber=0,this.itemListBuilt=!1,this.onSidx=null,this.sidxSent=!1};u.prototype.setSegmentOptions=function(t,e,i){var s=this.getTrackById(t);if(s){var r={};this.fragmentedTracks.push(r),r.id=t,r.user=e,r.trak=s,s.nextSample=0,r.segmentStream=null,r.nb_samples=1e3,r.rapAlignement=!0,i&&(i.nbSamples&&(r.nb_samples=i.nbSamples),i.rapAlignement&&(r.rapAlignement=i.rapAlignement))}},u.prototype.unsetSegmentOptions=function(t){for(var e=-1,i=0;i<this.fragmentedTracks.length;i++){this.fragmentedTracks[i].id==t&&(e=i)}e>-1&&this.fragmentedTracks.splice(e,1)},u.prototype.setExtractionOptions=function(t,e,i){var s=this.getTrackById(t);if(s){var r={};this.extractedTracks.push(r),r.id=t,r.user=e,r.trak=s,s.nextSample=0,r.nb_samples=1e3,r.samples=[],i&&i.nbSamples&&(r.nb_samples=i.nbSamples)}},u.prototype.unsetExtractionOptions=function(t){for(var e=-1,i=0;i<this.extractedTracks.length;i++){this.extractedTracks[i].id==t&&(e=i)}e>-1&&this.extractedTracks.splice(e,1)},u.prototype.parse=function(){var t,e;if(!this.restoreParsePosition||this.restoreParsePosition())for(;;){if(this.hasIncompleteMdat&&this.hasIncompleteMdat()){if(this.processIncompleteMdat())continue;return}if(this.saveParsePosition&&this.saveParsePosition(),(t=l.parseOneBox(this.stream,false)).code===l.ERR_NOT_ENOUGH_DATA){if(this.processIncompleteBox){if(this.processIncompleteBox(t))continue;return}return}var i;switch(i="uuid"!==(e=t.box).type?e.type:e.uuid,this.boxes.push(e),i){case"mdat":this.mdats.push(e);break;case"moof":this.moofs.push(e);break;case"moov":this.moovStartFound=!0,0===this.mdats.length&&(this.isProgressive=!0);default:void 0!==this[i]&&r.warn("ISOFile","Duplicate Box of type: "+i+", overriding previous occurrence"),this[i]=e}this.updateUsedBytes&&this.updateUsedBytes(e,t)}},u.prototype.checkBuffer=function(t){if(null==t)throw"Buffer must be defined and non empty";if(void 0===t.fileStart)throw"Buffer must have a fileStart property";return 0===t.byteLength?(r.warn("ISOFile","Ignoring empty buffer (fileStart: "+t.fileStart+")"),this.stream.logBufferLevel(),!1):(r.info("ISOFile","Processing buffer (fileStart: "+t.fileStart+")"),t.usedBytes=0,this.stream.insertBuffer(t),this.stream.logBufferLevel(),!!this.stream.initialized()||(r.warn("ISOFile","Not ready to start parsing"),!1))},u.prototype.appendBuffer=function(t,e){var i;if(this.checkBuffer(t))return this.parse(),this.moovStartFound&&!this.moovStartSent&&(this.moovStartSent=!0,this.onMoovStart&&this.onMoovStart()),this.moov?(this.sampleListBuilt||(this.buildSampleLists(),this.sampleListBuilt=!0),this.updateSampleLists(),this.onReady&&!this.readySent&&(this.readySent=!0,this.onReady(this.getInfo())),this.processSamples(e),this.nextSeekPosition?(i=this.nextSeekPosition,this.nextSeekPosition=void 0):i=this.nextParsePosition,this.stream.getEndFilePositionAfter&&(i=this.stream.getEndFilePositionAfter(i))):i=this.nextParsePosition?this.nextParsePosition:0,this.sidx&&this.onSidx&&!this.sidxSent&&(this.onSidx(this.sidx),this.sidxSent=!0),this.meta&&(this.flattenItemInfo&&!this.itemListBuilt&&(this.flattenItemInfo(),this.itemListBuilt=!0),this.processItems&&this.processItems(this.onItem)),this.stream.cleanBuffers&&(r.info("ISOFile","Done processing buffer (fileStart: "+t.fileStart+") - next buffer to fetch should have a fileStart position of "+i),this.stream.logBufferLevel(),this.stream.cleanBuffers(),this.stream.logBufferLevel(!0),r.info("ISOFile","Sample data size in memory: "+this.getAllocatedSampleDataSize())),i},u.prototype.getInfo=function(){var t,e,i,s,r,n={},a=new Date("1904-01-01T00:00:00Z").getTime();if(this.moov)for(n.hasMoov=!0,n.duration=this.moov.mvhd.duration,n.timescale=this.moov.mvhd.timescale,n.isFragmented=null!=this.moov.mvex,n.isFragmented&&this.moov.mvex.mehd&&(n.fragment_duration=this.moov.mvex.mehd.fragment_duration),n.isProgressive=this.isProgressive,n.hasIOD=null!=this.moov.iods,n.brands=[],n.brands.push(this.ftyp.major_brand),n.brands=n.brands.concat(this.ftyp.compatible_brands),n.created=new Date(a+1e3*this.moov.mvhd.creation_time),n.modified=new Date(a+1e3*this.moov.mvhd.modification_time),n.tracks=[],n.audioTracks=[],n.videoTracks=[],n.subtitleTracks=[],n.metadataTracks=[],n.hintTracks=[],n.otherTracks=[],t=0;t<this.moov.traks.length;t++){if(r=(i=this.moov.traks[t]).mdia.minf.stbl.stsd.entries[0],s={},n.tracks.push(s),s.id=i.tkhd.track_id,s.name=i.mdia.hdlr.name,s.references=[],i.tref)for(e=0;e<i.tref.boxes.length;e++)ref={},s.references.push(ref),ref.type=i.tref.boxes[e].type,ref.track_ids=i.tref.boxes[e].track_ids;i.edts&&(s.edits=i.edts.elst.entries),s.created=new Date(a+1e3*i.tkhd.creation_time),s.modified=new Date(a+1e3*i.tkhd.modification_time),s.movie_duration=i.tkhd.duration,s.movie_timescale=n.timescale,s.layer=i.tkhd.layer,s.alternate_group=i.tkhd.alternate_group,s.volume=i.tkhd.volume,s.matrix=i.tkhd.matrix,s.track_width=i.tkhd.width/65536,s.track_height=i.tkhd.height/65536,s.timescale=i.mdia.mdhd.timescale,s.cts_shift=i.mdia.minf.stbl.cslg,s.duration=i.mdia.mdhd.duration,s.samples_duration=i.samples_duration,s.codec=r.getCodec(),s.kind=i.udta&&i.udta.kinds.length?i.udta.kinds[0]:{schemeURI:"",value:""},s.language=i.mdia.elng?i.mdia.elng.extended_language:i.mdia.mdhd.languageString,s.nb_samples=i.samples.length,s.size=i.samples_size,s.bitrate=8*s.size*s.timescale/s.samples_duration,r.isAudio()?(s.type="audio",n.audioTracks.push(s),s.audio={},s.audio.sample_rate=r.getSampleRate(),s.audio.channel_count=r.getChannelCount(),s.audio.sample_size=r.getSampleSize()):r.isVideo()?(s.type="video",n.videoTracks.push(s),s.video={},s.video.width=r.getWidth(),s.video.height=r.getHeight()):r.isSubtitle()?(s.type="subtitles",n.subtitleTracks.push(s)):r.isHint()?(s.type="metadata",n.hintTracks.push(s)):r.isMetadata()?(s.type="metadata",n.metadataTracks.push(s)):(s.type="metadata",n.otherTracks.push(s))}else n.hasMoov=!1;if(n.mime="",n.hasMoov&&n.tracks){for(n.videoTracks&&n.videoTracks.length>0?n.mime+='video/mp4; codecs="':n.audioTracks&&n.audioTracks.length>0?n.mime+='audio/mp4; codecs="':n.mime+='application/mp4; codecs="',t=0;t<n.tracks.length;t++)0!==t&&(n.mime+=","),n.mime+=n.tracks[t].codec;n.mime+='"; profiles="',n.mime+=this.ftyp.compatible_brands.join(),n.mime+='"'}return n},u.prototype.processSamples=function(t){var e,i;if(this.sampleProcessingStarted){if(this.isFragmentationInitialized&&null!==this.onSegment)for(e=0;e<this.fragmentedTracks.length;e++){var s=this.fragmentedTracks[e];for(i=s.trak;i.nextSample<i.samples.length&&this.sampleProcessingStarted;){r.debug("ISOFile","Creating media fragment on track #"+s.id+" for sample "+i.nextSample);var n=this.createFragment(s.id,i.nextSample,s.segmentStream);if(!n)break;if(s.segmentStream=n,i.nextSample++,(i.nextSample%s.nb_samples==0||t||i.nextSample>=i.samples.length)&&(r.info("ISOFile","Sending fragmented data on track #"+s.id+" for samples ["+Math.max(0,i.nextSample-s.nb_samples)+","+(i.nextSample-1)+"]"),r.info("ISOFile","Sample data size in memory: "+this.getAllocatedSampleDataSize()),this.onSegment&&this.onSegment(s.id,s.user,s.segmentStream.buffer,i.nextSample,t||i.nextSample>=i.samples.length),s.segmentStream=null,s!==this.fragmentedTracks[e]))break}}if(null!==this.onSamples)for(e=0;e<this.extractedTracks.length;e++){var a=this.extractedTracks[e];for(i=a.trak;i.nextSample<i.samples.length&&this.sampleProcessingStarted;){r.debug("ISOFile","Exporting on track #"+a.id+" sample #"+i.nextSample);var o=this.getSample(i,i.nextSample);if(!o)break;if(i.nextSample++,a.samples.push(o),(i.nextSample%a.nb_samples==0||i.nextSample>=i.samples.length)&&(r.debug("ISOFile","Sending samples on track #"+a.id+" for sample "+i.nextSample),this.onSamples&&this.onSamples(a.id,a.user,a.samples),a.samples=[],a!==this.extractedTracks[e]))break}}}},u.prototype.getBox=function(t){var e=this.getBoxes(t,!0);return e.length?e[0]:null},u.prototype.getBoxes=function(t,e){var i=[];return u._sweep.call(this,t,i,e),i},u._sweep=function(t,e,i){for(var s in this.type&&this.type==t&&e.push(this),this.boxes){if(e.length&&i)return;u._sweep.call(this.boxes[s],t,e,i)}},u.prototype.getTrackSamplesInfo=function(t){var e=this.getTrackById(t);return e?e.samples:void 0},u.prototype.getTrackSample=function(t,e){var i=this.getTrackById(t);return this.getSample(i,e)},u.prototype.releaseUsedSamples=function(t,e){var i=0,s=this.getTrackById(t);s.lastValidSample||(s.lastValidSample=0);for(var n=s.lastValidSample;n<e;n++)i+=this.releaseSample(s,n);r.info("ISOFile","Track #"+t+" released samples up to "+e+" (released size: "+i+", remaining: "+this.samplesDataSize+")"),s.lastValidSample=e},u.prototype.start=function(){this.sampleProcessingStarted=!0,this.processSamples(!1)},u.prototype.stop=function(){this.sampleProcessingStarted=!1},u.prototype.flush=function(){r.info("ISOFile","Flushing remaining samples"),this.updateSampleLists(),this.processSamples(!0),this.stream.cleanBuffers(),this.stream.logBufferLevel(!0)},u.prototype.seekTrack=function(t,e,i){var s,n,a,o,h=0,d=0;if(0===i.samples.length)return r.info("ISOFile","No sample in track, cannot seek! Using time "+r.getDurationString(0,1)+" and offset: 0"),{offset:0,time:0};for(s=0;s<i.samples.length;s++){if(n=i.samples[s],0===s)d=0,o=n.timescale;else if(n.cts>t*n.timescale){d=s-1;break}e&&n.is_sync&&(h=s)}for(e&&(d=h),t=i.samples[d].cts,i.nextSample=d;i.samples[d].alreadyRead===i.samples[d].size&&i.samples[d+1];)d++;return a=i.samples[d].offset+i.samples[d].alreadyRead,r.info("ISOFile","Seeking to "+(e?"RAP":"")+" sample #"+i.nextSample+" on track "+i.tkhd.track_id+", time "+r.getDurationString(t,o)+" and offset: "+a),{offset:a,time:t/o}},u.prototype.seek=function(t,e){var i,s,n,a=this.moov,o={offset:1/0,time:1/0};if(this.moov){for(n=0;n<a.traks.length;n++)i=a.traks[n],(s=this.seekTrack(t,e,i)).offset<o.offset&&(o.offset=s.offset),s.time<o.time&&(o.time=s.time);return r.info("ISOFile","Seeking at time "+r.getDurationString(o.time,1)+" needs a buffer with a fileStart position of "+o.offset),o.offset===1/0?o={offset:this.nextParsePosition,time:0}:o.offset=this.stream.getEndFilePositionAfter(o.offset),r.info("ISOFile","Adjusted seek position (after checking data already in buffer): "+o.offset),o}throw"Cannot seek: moov not received!"},u.prototype.equal=function(t){for(var e=0;e<this.boxes.length&&e<t.boxes.length;){var i=this.boxes[e],s=t.boxes[e];if(!l.boxEqual(i,s))return!1;e++}return!0},t.ISOFile=u,u.prototype.lastBoxStartPosition=0,u.prototype.parsingMdat=null,u.prototype.nextParsePosition=0,u.prototype.discardMdatData=!1,u.prototype.processIncompleteBox=function(t){var e;return"mdat"===t.type?(e=new l[t.type+"Box"](t.size),this.parsingMdat=e,this.boxes.push(e),this.mdats.push(e),e.start=t.start,e.hdr_size=t.hdr_size,this.stream.addUsedBytes(e.hdr_size),this.lastBoxStartPosition=e.start+e.size,this.stream.seek(e.start+e.size,!1,this.discardMdatData)?(this.parsingMdat=null,!0):(this.moovStartFound?this.nextParsePosition=this.stream.findEndContiguousBuf():this.nextParsePosition=e.start+e.size,!1)):("moov"===t.type&&(this.moovStartFound=!0,0===this.mdats.length&&(this.isProgressive=!0)),!!this.stream.mergeNextBuffer&&this.stream.mergeNextBuffer()?(this.nextParsePosition=this.stream.getEndPosition(),!0):(t.type?this.moovStartFound?this.nextParsePosition=this.stream.getEndPosition():this.nextParsePosition=this.stream.getPosition()+t.size:this.nextParsePosition=this.stream.getEndPosition(),!1))},u.prototype.hasIncompleteMdat=function(){return null!==this.parsingMdat},u.prototype.processIncompleteMdat=function(){var t;return t=this.parsingMdat,this.stream.seek(t.start+t.size,!1,this.discardMdatData)?(r.debug("ISOFile","Found 'mdat' end in buffered data"),this.parsingMdat=null,!0):(this.nextParsePosition=this.stream.findEndContiguousBuf(),!1)},u.prototype.restoreParsePosition=function(){return this.stream.seek(this.lastBoxStartPosition,!0,this.discardMdatData)},u.prototype.saveParsePosition=function(){this.lastBoxStartPosition=this.stream.getPosition()},u.prototype.updateUsedBytes=function(t,e){this.stream.addUsedBytes&&("mdat"===t.type?(this.stream.addUsedBytes(t.hdr_size),this.discardMdatData&&this.stream.addUsedBytes(t.size-t.hdr_size)):this.stream.addUsedBytes(t.size))},u.prototype.add=l.Box.prototype.add,u.prototype.addBox=l.Box.prototype.addBox,u.prototype.init=function(t){var e=t||{};this.add("ftyp").set("major_brand",e.brands&&e.brands[0]||"iso4").set("minor_version",0).set("compatible_brands",e.brands||["iso4"]);var i=this.add("moov");return i.add("mvhd").set("timescale",e.timescale||600).set("rate",e.rate||65536).set("creation_time",0).set("modification_time",0).set("duration",e.duration||0).set("volume",e.width?0:256).set("matrix",[65536,0,0,0,65536,0,0,0,1073741824]).set("next_track_id",1),i.add("mvex"),this},u.prototype.addTrack=function(t){this.moov||this.init(t);var e=t||{};e.width=e.width||320,e.height=e.height||320,e.id=e.id||this.moov.mvhd.next_track_id,e.type=e.type||"avc1";var i=this.moov.add("trak");this.moov.mvhd.next_track_id=e.id+1,i.add("tkhd").set("flags",l.TKHD_FLAG_ENABLED|l.TKHD_FLAG_IN_MOVIE|l.TKHD_FLAG_IN_PREVIEW).set("creation_time",0).set("modification_time",0).set("track_id",e.id).set("duration",e.duration||0).set("layer",e.layer||0).set("alternate_group",0).set("volume",1).set("matrix",[0,0,0,0,0,0,0,0,0]).set("width",e.width).set("height",e.height);var s=i.add("mdia");s.add("mdhd").set("creation_time",0).set("modification_time",0).set("timescale",e.timescale||1).set("duration",e.media_duration||0).set("language",e.language||"und"),s.add("hdlr").set("handler",e.hdlr||"vide").set("name",e.name||"Track created with MP4Box.js"),s.add("elng").set("extended_language",e.language||"fr-FR");var r=s.add("minf");if(void 0!==l[e.type+"SampleEntry"]){var a=new l[e.type+"SampleEntry"];a.data_reference_index=1;var o="";for(var h in l.sampleEntryCodes)for(var d=l.sampleEntryCodes[h],p=0;p<d.length;p++)if(d.indexOf(e.type)>-1){o=h;break}switch(o){case"Visual":if(r.add("vmhd").set("graphicsmode",0).set("opcolor",[0,0,0]),a.set("width",e.width).set("height",e.height).set("horizresolution",72<<16).set("vertresolution",72<<16).set("frame_count",1).set("compressorname",e.type+" Compressor").set("depth",24),e.avcDecoderConfigRecord){var f=new l.avcCBox,u=new n(e.avcDecoderConfigRecord);f.parse(u),a.addBox(f)}break;case"Audio":r.add("smhd").set("balance",e.balance||0),a.set("channel_count",e.channel_count||2).set("samplesize",e.samplesize||16).set("samplerate",e.samplerate||65536);break;case"Hint":r.add("hmhd");break;case"Subtitle":if(r.add("sthd"),"stpp"===e.type)a.set("namespace",e.namespace||"nonamespace").set("schema_location",e.schema_location||"").set("auxiliary_mime_types",e.auxiliary_mime_types||"");break;default:r.add("nmhd")}e.description&&a.addBox(e.description),e.description_boxes&&e.description_boxes.forEach((function(t){a.addBox(t)})),r.add("dinf").add("dref").addEntry((new l["url Box"]).set("flags",1));var c=r.add("stbl");return c.add("stsd").addEntry(a),c.add("stts").set("sample_counts",[]).set("sample_deltas",[]),c.add("stsc").set("first_chunk",[]).set("samples_per_chunk",[]).set("sample_description_index",[]),c.add("stco").set("chunk_offsets",[]),c.add("stsz").set("sample_sizes",[]),this.moov.mvex.add("trex").set("track_id",e.id).set("default_sample_description_index",e.default_sample_description_index||1).set("default_sample_duration",e.default_sample_duration||0).set("default_sample_size",e.default_sample_size||0).set("default_sample_flags",e.default_sample_flags||0),this.buildTrakSampleLists(i),e.id}},l.Box.prototype.computeSize=function(t){var e=t||new a;e.endianness=a.BIG_ENDIAN,this.write(e)},u.prototype.addSample=function(t,e,i){var s=i||{},r={},n=this.getTrackById(t);if(null!==n){r.number=n.samples.length,r.track_id=n.tkhd.track_id,r.timescale=n.mdia.mdhd.timescale,r.description_index=s.sample_description_index?s.sample_description_index-1:0,r.description=n.mdia.minf.stbl.stsd.entries[r.description_index],r.data=e,r.size=e.byteLength,r.alreadyRead=r.size,r.duration=s.duration||1,r.cts=s.cts||0,r.dts=s.dts||0,r.is_sync=s.is_sync||!1,r.is_leading=s.is_leading||0,r.depends_on=s.depends_on||0,r.is_depended_on=s.is_depended_on||0,r.has_redundancy=s.has_redundancy||0,r.degradation_priority=s.degradation_priority||0,r.offset=0,r.subsamples=s.subsamples,n.samples.push(r),n.samples_size+=r.size,n.samples_duration+=r.duration,n.first_dts||(n.first_dts=s.dts),this.processSamples();var a=this.createSingleSampleMoof(r);return this.addBox(a),a.computeSize(),a.trafs[0].truns[0].data_offset=a.size+8,this.add("mdat").data=new Uint8Array(e),r}},u.prototype.createSingleSampleMoof=function(t){var e=0;e=t.is_sync?1<<25:65536;var i=new l.moofBox;i.add("mfhd").set("sequence_number",this.nextMoofNumber),this.nextMoofNumber++;var s=i.add("traf"),r=this.getTrackById(t.track_id);return s.add("tfhd").set("track_id",t.track_id).set("flags",l.TFHD_FLAG_DEFAULT_BASE_IS_MOOF),s.add("tfdt").set("baseMediaDecodeTime",t.dts-r.first_dts),s.add("trun").set("flags",l.TRUN_FLAGS_DATA_OFFSET|l.TRUN_FLAGS_DURATION|l.TRUN_FLAGS_SIZE|l.TRUN_FLAGS_FLAGS|l.TRUN_FLAGS_CTS_OFFSET).set("data_offset",0).set("first_sample_flags",0).set("sample_count",1).set("sample_duration",[t.duration]).set("sample_size",[t.size]).set("sample_flags",[e]).set("sample_composition_time_offset",[t.cts-t.dts]),i},u.prototype.lastMoofIndex=0,u.prototype.samplesDataSize=0,u.prototype.resetTables=function(){var t,e,i,s,r,n;for(this.initial_duration=this.moov.mvhd.duration,this.moov.mvhd.duration=0,t=0;t<this.moov.traks.length;t++){(e=this.moov.traks[t]).tkhd.duration=0,e.mdia.mdhd.duration=0,(e.mdia.minf.stbl.stco||e.mdia.minf.stbl.co64).chunk_offsets=[],(i=e.mdia.minf.stbl.stsc).first_chunk=[],i.samples_per_chunk=[],i.sample_description_index=[],(e.mdia.minf.stbl.stsz||e.mdia.minf.stbl.stz2).sample_sizes=[],(s=e.mdia.minf.stbl.stts).sample_counts=[],s.sample_deltas=[],(r=e.mdia.minf.stbl.ctts)&&(r.sample_counts=[],r.sample_offsets=[]),n=e.mdia.minf.stbl.stss;var a=e.mdia.minf.stbl.boxes.indexOf(n);-1!=a&&(e.mdia.minf.stbl.boxes[a]=null)}},u.initSampleGroups=function(t,e,i,s,r){var n,a,o,h;function d(t,e,i){this.grouping_type=t,this.grouping_type_parameter=e,this.sbgp=i,this.last_sample_in_run=-1,this.entry_index=-1}for(e&&(e.sample_groups_info=[]),t.sample_groups_info||(t.sample_groups_info=[]),a=0;a<i.length;a++){for(h=i[a].grouping_type+"/"+i[a].grouping_type_parameter,o=new d(i[a].grouping_type,i[a].grouping_type_parameter,i[a]),e&&(e.sample_groups_info[h]=o),t.sample_groups_info[h]||(t.sample_groups_info[h]=o),n=0;n<s.length;n++)s[n].grouping_type===i[a].grouping_type&&(o.description=s[n],o.description.used=!0);if(r)for(n=0;n<r.length;n++)r[n].grouping_type===i[a].grouping_type&&(o.fragment_description=r[n],o.fragment_description.used=!0,o.is_fragment=!0)}if(e){if(r)for(a=0;a<r.length;a++)!r[a].used&&r[a].version>=2&&(h=r[a].grouping_type+"/0",(o=new d(r[a].grouping_type,0)).is_fragment=!0,e.sample_groups_info[h]||(e.sample_groups_info[h]=o))}else for(a=0;a<s.length;a++)!s[a].used&&s[a].version>=2&&(h=s[a].grouping_type+"/0",o=new d(s[a].grouping_type,0),t.sample_groups_info[h]||(t.sample_groups_info[h]=o))},u.setSampleGroupProperties=function(t,e,i,s){var r,n;for(r in e.sample_groups=[],s){var a;if(e.sample_groups[r]={},e.sample_groups[r].grouping_type=s[r].grouping_type,e.sample_groups[r].grouping_type_parameter=s[r].grouping_type_parameter,i>=s[r].last_sample_in_run&&(s[r].last_sample_in_run<0&&(s[r].last_sample_in_run=0),s[r].entry_index++,s[r].entry_index<=s[r].sbgp.entries.length-1&&(s[r].last_sample_in_run+=s[r].sbgp.entries[s[r].entry_index].sample_count)),s[r].entry_index<=s[r].sbgp.entries.length-1?e.sample_groups[r].group_description_index=s[r].sbgp.entries[s[r].entry_index].group_description_index:e.sample_groups[r].group_description_index=-1,0!==e.sample_groups[r].group_description_index)a=s[r].fragment_description?s[r].fragment_description:s[r].description,e.sample_groups[r].group_description_index>0?(n=e.sample_groups[r].group_description_index>65535?(e.sample_groups[r].group_description_index>>16)-1:e.sample_groups[r].group_description_index-1,a&&n>=0&&(e.sample_groups[r].description=a.entries[n])):a&&a.version>=2&&a.default_group_description_index>0&&(e.sample_groups[r].description=a.entries[a.default_group_description_index-1])}},u.process_sdtp=function(t,e,i){e&&(t?(e.is_leading=t.is_leading[i],e.depends_on=t.sample_depends_on[i],e.is_depended_on=t.sample_is_depended_on[i],e.has_redundancy=t.sample_has_redundancy[i]):(e.is_leading=0,e.depends_on=0,e.is_depended_on=0,e.has_redundancy=0))},u.prototype.buildSampleLists=function(){var t,e;for(t=0;t<this.moov.traks.length;t++)e=this.moov.traks[t],this.buildTrakSampleLists(e)},u.prototype.buildTrakSampleLists=function(t){var e,i,s,r,n,a,o,h,d,l,p,f,c,m,_,g,y,b,v,w,S,U,x,E;if(t.samples=[],t.samples_duration=0,t.samples_size=0,i=t.mdia.minf.stbl.stco||t.mdia.minf.stbl.co64,s=t.mdia.minf.stbl.stsc,r=t.mdia.minf.stbl.stsz||t.mdia.minf.stbl.stz2,n=t.mdia.minf.stbl.stts,a=t.mdia.minf.stbl.ctts,o=t.mdia.minf.stbl.stss,h=t.mdia.minf.stbl.stsd,d=t.mdia.minf.stbl.subs,f=t.mdia.minf.stbl.stdp,l=t.mdia.minf.stbl.sbgps,p=t.mdia.minf.stbl.sgpds,b=-1,v=-1,w=-1,S=-1,U=0,x=0,E=0,u.initSampleGroups(t,null,l,p),void 0!==r){for(e=0;e<r.sample_sizes.length;e++){var B={};B.number=e,B.track_id=t.tkhd.track_id,B.timescale=t.mdia.mdhd.timescale,B.alreadyRead=0,t.samples[e]=B,B.size=r.sample_sizes[e],t.samples_size+=B.size,0===e?(m=1,c=0,B.chunk_index=m,B.chunk_run_index=c,y=s.samples_per_chunk[c],g=0,_=c+1<s.first_chunk.length?s.first_chunk[c+1]-1:1/0):e<y?(B.chunk_index=m,B.chunk_run_index=c):(m++,B.chunk_index=m,g=0,m<=_||(_=++c+1<s.first_chunk.length?s.first_chunk[c+1]-1:1/0),B.chunk_run_index=c,y+=s.samples_per_chunk[c]),B.description_index=s.sample_description_index[B.chunk_run_index]-1,B.description=h.entries[B.description_index],B.offset=i.chunk_offsets[B.chunk_index-1]+g,g+=B.size,e>b&&(v++,b<0&&(b=0),b+=n.sample_counts[v]),e>0?(t.samples[e-1].duration=n.sample_deltas[v],t.samples_duration+=t.samples[e-1].duration,B.dts=t.samples[e-1].dts+t.samples[e-1].duration):B.dts=0,a?(e>=w&&(S++,w<0&&(w=0),w+=a.sample_counts[S]),B.cts=t.samples[e].dts+a.sample_offsets[S]):B.cts=B.dts,o?(e==o.sample_numbers[U]-1?(B.is_sync=!0,U++):(B.is_sync=!1,B.degradation_priority=0),d&&d.entries[x].sample_delta+E==e+1&&(B.subsamples=d.entries[x].subsamples,E+=d.entries[x].sample_delta,x++)):B.is_sync=!0,u.process_sdtp(t.mdia.minf.stbl.sdtp,B,B.number),B.degradation_priority=f?f.priority[e]:0,d&&d.entries[x].sample_delta+E==e&&(B.subsamples=d.entries[x].subsamples,E+=d.entries[x].sample_delta),(l.length>0||p.length>0)&&u.setSampleGroupProperties(t,B,e,t.sample_groups_info)}e>0&&(t.samples[e-1].duration=Math.max(t.mdia.mdhd.duration-t.samples[e-1].dts,0),t.samples_duration+=t.samples[e-1].duration)}},u.prototype.updateSampleLists=function(){var t,e,i,s,r,n,a,o,h,d,p,f,c,m,_;if(void 0!==this.moov)for(;this.lastMoofIndex<this.moofs.length;)if(h=this.moofs[this.lastMoofIndex],this.lastMoofIndex++,"moof"==h.type)for(d=h,t=0;t<d.trafs.length;t++){for(p=d.trafs[t],f=this.getTrackById(p.tfhd.track_id),c=this.getTrexById(p.tfhd.track_id),s=p.tfhd.flags&l.TFHD_FLAG_SAMPLE_DESC?p.tfhd.default_sample_description_index:c?c.default_sample_description_index:1,r=p.tfhd.flags&l.TFHD_FLAG_SAMPLE_DUR?p.tfhd.default_sample_duration:c?c.default_sample_duration:0,n=p.tfhd.flags&l.TFHD_FLAG_SAMPLE_SIZE?p.tfhd.default_sample_size:c?c.default_sample_size:0,a=p.tfhd.flags&l.TFHD_FLAG_SAMPLE_FLAGS?p.tfhd.default_sample_flags:c?c.default_sample_flags:0,p.sample_number=0,p.sbgps.length>0&&u.initSampleGroups(f,p,p.sbgps,f.mdia.minf.stbl.sgpds,p.sgpds),e=0;e<p.truns.length;e++){var g=p.truns[e];for(i=0;i<g.sample_count;i++){(m={}).moof_number=this.lastMoofIndex,m.number_in_traf=p.sample_number,p.sample_number++,m.number=f.samples.length,p.first_sample_index=f.samples.length,f.samples.push(m),m.track_id=f.tkhd.track_id,m.timescale=f.mdia.mdhd.timescale,m.description_index=s-1,m.description=f.mdia.minf.stbl.stsd.entries[m.description_index],m.size=n,g.flags&l.TRUN_FLAGS_SIZE&&(m.size=g.sample_size[i]),f.samples_size+=m.size,m.duration=r,g.flags&l.TRUN_FLAGS_DURATION&&(m.duration=g.sample_duration[i]),f.samples_duration+=m.duration,f.first_traf_merged||i>0?m.dts=f.samples[f.samples.length-2].dts+f.samples[f.samples.length-2].duration:(p.tfdt?m.dts=p.tfdt.baseMediaDecodeTime:m.dts=0,f.first_traf_merged=!0),m.cts=m.dts,g.flags&l.TRUN_FLAGS_CTS_OFFSET&&(m.cts=m.dts+g.sample_composition_time_offset[i]),_=a,g.flags&l.TRUN_FLAGS_FLAGS?_=g.sample_flags[i]:0===i&&g.flags&l.TRUN_FLAGS_FIRST_FLAG&&(_=g.first_sample_flags),m.is_sync=!(_>>16&1),m.is_leading=_>>26&3,m.depends_on=_>>24&3,m.is_depended_on=_>>22&3,m.has_redundancy=_>>20&3,m.degradation_priority=65535&_;var y=!!(p.tfhd.flags&l.TFHD_FLAG_BASE_DATA_OFFSET),b=!!(p.tfhd.flags&l.TFHD_FLAG_DEFAULT_BASE_IS_MOOF),v=!!(g.flags&l.TRUN_FLAGS_DATA_OFFSET),w=0;w=y?p.tfhd.base_data_offset:b||0===e?d.start:o,m.offset=0===e&&0===i?v?w+g.data_offset:w:o,o=m.offset+m.size,(p.sbgps.length>0||p.sgpds.length>0||f.mdia.minf.stbl.sbgps.length>0||f.mdia.minf.stbl.sgpds.length>0)&&u.setSampleGroupProperties(f,m,m.number_in_traf,p.sample_groups_info)}}if(p.subs){f.has_fragment_subsamples=!0;var S=p.first_sample_index;for(e=0;e<p.subs.entries.length;e++)S+=p.subs.entries[e].sample_delta,(m=f.samples[S-1]).subsamples=p.subs.entries[e].subsamples}}},u.prototype.getSample=function(t,e){var i,s=t.samples[e];if(!this.moov)return null;if(s.data){if(s.alreadyRead==s.size)return s}else s.data=new Uint8Array(s.size),s.alreadyRead=0,this.samplesDataSize+=s.size,r.debug("ISOFile","Allocating sample #"+e+" on track #"+t.tkhd.track_id+" of size "+s.size+" (total: "+this.samplesDataSize+")");for(;;){var n=this.stream.findPosition(!0,s.offset+s.alreadyRead,!1);if(!(n>-1))return null;var o=(i=this.stream.buffers[n]).byteLength-(s.offset+s.alreadyRead-i.fileStart);if(s.size-s.alreadyRead<=o)return r.debug("ISOFile","Getting sample #"+e+" data (alreadyRead: "+s.alreadyRead+" offset: "+(s.offset+s.alreadyRead-i.fileStart)+" read size: "+(s.size-s.alreadyRead)+" full size: "+s.size+")"),a.memcpy(s.data.buffer,s.alreadyRead,i,s.offset+s.alreadyRead-i.fileStart,s.size-s.alreadyRead),i.usedBytes+=s.size-s.alreadyRead,this.stream.logBufferLevel(),s.alreadyRead=s.size,s;if(0===o)return null;r.debug("ISOFile","Getting sample #"+e+" partial data (alreadyRead: "+s.alreadyRead+" offset: "+(s.offset+s.alreadyRead-i.fileStart)+" read size: "+o+" full size: "+s.size+")"),a.memcpy(s.data.buffer,s.alreadyRead,i,s.offset+s.alreadyRead-i.fileStart,o),s.alreadyRead+=o,i.usedBytes+=o,this.stream.logBufferLevel()}},u.prototype.releaseSample=function(t,e){var i=t.samples[e];return i.data?(this.samplesDataSize-=i.size,i.data=null,i.alreadyRead=0,i.size):0},u.prototype.getAllocatedSampleDataSize=function(){return this.samplesDataSize},u.prototype.getCodecs=function(){var t,e="";for(t=0;t<this.moov.traks.length;t++){t>0&&(e+=","),e+=this.moov.traks[t].mdia.minf.stbl.stsd.entries[0].getCodec()}return e},u.prototype.getTrexById=function(t){var e;if(!this.moov||!this.moov.mvex)return null;for(e=0;e<this.moov.mvex.trexs.length;e++){var i=this.moov.mvex.trexs[e];if(i.track_id==t)return i}return null},u.prototype.getTrackById=function(t){if(void 0===this.moov)return null;for(var e=0;e<this.moov.traks.length;e++){var i=this.moov.traks[e];if(i.tkhd.track_id==t)return i}return null},u.prototype.items=[],u.prototype.itemsDataSize=0,u.prototype.flattenItemInfo=function(){var t,e,i,s=this.items,n=this.meta;if(null!=n&&void 0!==n.hdlr&&void 0!==n.iinf){for(t=0;t<n.iinf.item_infos.length;t++)(i={}).id=n.iinf.item_infos[t].item_ID,s[i.id]=i,i.ref_to=[],i.name=n.iinf.item_infos[t].item_name,n.iinf.item_infos[t].protection_index>0&&(i.protection=n.ipro.protections[n.iinf.item_infos[t].protection_index-1]),n.iinf.item_infos[t].item_type?i.type=n.iinf.item_infos[t].item_type:i.type="mime",i.content_type=n.iinf.item_infos[t].content_type,i.content_encoding=n.iinf.item_infos[t].content_encoding;if(n.iloc)for(t=0;t<n.iloc.items.length;t++){var a=n.iloc.items[t];switch(i=s[a.item_ID],0!==a.data_reference_index&&(r.warn("Item storage with reference to other files: not supported"),i.source=n.dinf.boxes[a.data_reference_index-1]),a.construction_method){case 0:break;case 1:case 2:r.warn("Item storage with construction_method : not supported")}for(i.extents=[],i.size=0,e=0;e<a.extents.length;e++)i.extents[e]={},i.extents[e].offset=a.extents[e].extent_offset+a.base_offset,i.extents[e].length=a.extents[e].extent_length,i.extents[e].alreadyRead=0,i.size+=i.extents[e].length}if(n.pitm&&(s[n.pitm.item_id].primary=!0),n.iref)for(t=0;t<n.iref.references.length;t++){var o=n.iref.references[t];for(e=0;e<o.references.length;e++)s[o.from_item_ID].ref_to.push({type:o.type,id:o.references[e]})}if(n.iprp)for(var h=0;h<n.iprp.ipmas.length;h++){var d=n.iprp.ipmas[h];for(t=0;t<d.associations.length;t++){var l=d.associations[t];for(void 0===(i=s[l.id]).properties&&(i.properties={},i.properties.boxes=[]),e=0;e<l.props.length;e++){var p=l.props[e];if(p.property_index>0&&p.property_index-1<n.iprp.ipco.boxes.length){var f=n.iprp.ipco.boxes[p.property_index-1];i.properties[f.type]=f,i.properties.boxes.push(f)}}}}}},u.prototype.getItem=function(t){var e,i;if(!this.meta)return null;if(!(i=this.items[t]).data&&i.size)i.data=new Uint8Array(i.size),i.alreadyRead=0,this.itemsDataSize+=i.size,r.debug("ISOFile","Allocating item #"+t+" of size "+i.size+" (total: "+this.itemsDataSize+")");else if(i.alreadyRead===i.size)return i;for(var s=0;s<i.extents.length;s++){var n=i.extents[s];if(n.alreadyRead!==n.length){var o=this.stream.findPosition(!0,n.offset+n.alreadyRead,!1);if(!(o>-1))return null;var h=(e=this.stream.buffers[o]).byteLength-(n.offset+n.alreadyRead-e.fileStart);if(!(n.length-n.alreadyRead<=h))return r.debug("ISOFile","Getting item #"+t+" extent #"+s+" partial data (alreadyRead: "+n.alreadyRead+" offset: "+(n.offset+n.alreadyRead-e.fileStart)+" read size: "+h+" full extent size: "+n.length+" full item size: "+i.size+")"),a.memcpy(i.data.buffer,i.alreadyRead,e,n.offset+n.alreadyRead-e.fileStart,h),n.alreadyRead+=h,i.alreadyRead+=h,e.usedBytes+=h,this.stream.logBufferLevel(),null;r.debug("ISOFile","Getting item #"+t+" extent #"+s+" data (alreadyRead: "+n.alreadyRead+" offset: "+(n.offset+n.alreadyRead-e.fileStart)+" read size: "+(n.length-n.alreadyRead)+" full extent size: "+n.length+" full item size: "+i.size+")"),a.memcpy(i.data.buffer,i.alreadyRead,e,n.offset+n.alreadyRead-e.fileStart,n.length-n.alreadyRead),e.usedBytes+=n.length-n.alreadyRead,this.stream.logBufferLevel(),i.alreadyRead+=n.length-n.alreadyRead,n.alreadyRead=n.length}}return i.alreadyRead===i.size?i:null},u.prototype.releaseItem=function(t){var e=this.items[t];if(e.data){this.itemsDataSize-=e.size,e.data=null,e.alreadyRead=0;for(var i=0;i<e.extents.length;i++){e.extents[i].alreadyRead=0}return e.size}return 0},u.prototype.processItems=function(t){for(var e in this.items){var i=this.items[e];this.getItem(i.id),t&&!i.sent&&(t(i),i.sent=!0,i.data=null)}},u.prototype.hasItem=function(t){for(var e in this.items){var i=this.items[e];if(i.name===t)return i.id}return-1},u.prototype.getMetaHandler=function(){return this.meta?this.meta.hdlr.handler:null},u.prototype.getPrimaryItem=function(){return this.meta&&this.meta.pitm?this.getItem(this.meta.pitm.item_id):null},u.prototype.itemToFragmentedTrackFile=function(t){var e=t||{},i=null;if(null==(i=e.itemId?this.getItem(e.itemId):this.getPrimaryItem()))return null;var s=new u;s.discardMdatData=!1;var r={type:i.type,description_boxes:i.properties.boxes};i.properties.ispe&&(r.width=i.properties.ispe.image_width,r.height=i.properties.ispe.image_height);var n=s.addTrack(r);return n?(s.addSample(n,i.data),s):null},u.prototype.write=function(t){for(var e=0;e<this.boxes.length;e++)this.boxes[e].write(t)},u.prototype.createFragment=function(t,e,i){var s=this.getTrackById(t),n=this.getSample(s,e);if(null==n)return n=s.samples[e],this.nextSeekPosition?this.nextSeekPosition=Math.min(n.offset+n.alreadyRead,this.nextSeekPosition):this.nextSeekPosition=s.samples[e].offset+n.alreadyRead,null;var o=i||new a;o.endianness=a.BIG_ENDIAN;var h=this.createSingleSampleMoof(n);h.write(o),h.trafs[0].truns[0].data_offset=h.size+8,r.debug("MP4Box","Adjusting data_offset with new value "+h.trafs[0].truns[0].data_offset),o.adjustUint32(h.trafs[0].truns[0].data_offset_position,h.trafs[0].truns[0].data_offset);var d=new l.mdatBox;return d.data=n.data,d.write(o),o},u.writeInitializationSegment=function(t,e,i,s){var n;r.debug("ISOFile","Generating initialization segment");var o=new a;o.endianness=a.BIG_ENDIAN,t.write(o);var h=e.add("mvex");for(i&&h.add("mehd").set("fragment_duration",i),n=0;n<e.traks.length;n++)h.add("trex").set("track_id",e.traks[n].tkhd.track_id).set("default_sample_description_index",1).set("default_sample_duration",s).set("default_sample_size",0).set("default_sample_flags",65536);return e.write(o),o.buffer},u.prototype.save=function(t){var e=new a;e.endianness=a.BIG_ENDIAN,this.write(e),e.save(t)},u.prototype.getBuffer=function(){var t=new a;return t.endianness=a.BIG_ENDIAN,this.write(t),t.buffer},u.prototype.initializeSegmentation=function(){var t,e,i,s;for(null===this.onSegment&&r.warn("MP4Box","No segmentation callback set!"),this.isFragmentationInitialized||(this.isFragmentationInitialized=!0,this.nextMoofNumber=0,this.resetTables()),e=[],t=0;t<this.fragmentedTracks.length;t++){var n=new l.moovBox;n.mvhd=this.moov.mvhd,n.boxes.push(n.mvhd),i=this.getTrackById(this.fragmentedTracks[t].id),n.boxes.push(i),n.traks.push(i),(s={}).id=i.tkhd.track_id,s.user=this.fragmentedTracks[t].user,s.buffer=u.writeInitializationSegment(this.ftyp,n,this.moov.mvex&&this.moov.mvex.mehd?this.moov.mvex.mehd.fragment_duration:void 0,this.moov.traks[t].samples.length>0?this.moov.traks[t].samples[0].duration:0),e.push(s)}return e},l.Box.prototype.printHeader=function(t){this.size+=8,this.size>o&&(this.size+=8),"uuid"===this.type&&(this.size+=16),t.log(t.indent+"size:"+this.size),t.log(t.indent+"type:"+this.type)},l.FullBox.prototype.printHeader=function(t){this.size+=4,l.Box.prototype.printHeader.call(this,t),t.log(t.indent+"version:"+this.version),t.log(t.indent+"flags:"+this.flags)},l.Box.prototype.print=function(t){this.printHeader(t)},l.ContainerBox.prototype.print=function(t){this.printHeader(t);for(var e=0;e<this.boxes.length;e++)if(this.boxes[e]){var i=t.indent;t.indent+=" ",this.boxes[e].print(t),t.indent=i}},u.prototype.print=function(t){t.indent="";for(var e=0;e<this.boxes.length;e++)this.boxes[e]&&this.boxes[e].print(t)},l.mvhdBox.prototype.print=function(t){l.FullBox.prototype.printHeader.call(this,t),t.log(t.indent+"creation_time: "+this.creation_time),t.log(t.indent+"modification_time: "+this.modification_time),t.log(t.indent+"timescale: "+this.timescale),t.log(t.indent+"duration: 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\ No newline at end of file
diff --git a/docs/gallery/demos/videos/index.qmd b/docs/gallery/demos/videos/index.qmd
new file mode 100644
index 0000000..7c52fb2
--- /dev/null
+++ b/docs/gallery/demos/videos/index.qmd
@@ -0,0 +1,140 @@
+---
+title: "Videos"
+# image: "globe.png"
+subtitle: "Use videos that loop or progress on user scroll."
+format:
+  closeread-html:
+    resources: rayshader.mp4
+    cr-style:
+      narrative-border-radius: 0
+      narrative-background-color-overlay: "#d8e4f2aa"
+      narrative-text-color-overlay: black
+      narrative-background-color-sidebar: "#914e4e"
+      narrative-text-color-sidebar: white
+      section-background-color: "#213243"
+---
+
+Something something video
+
+Now here's an example of a video filling to fit the space:
+
+::::{.cr-section layout="overlay-left"}
+
+You can tell all sorts of stories with videos.
+
+Maybe you've gone on a journey.  
+[Credit: [Cristian-Manieri/Pixabay](https://pixabay.com/videos/drone-landscape-green-greenland-236893/)]{style="font-size: 65%;"} @cr-ship
+
+:::{#cr-ship .scale-to-cover}
+![](ship.mp4){alt="A ship sails in a polar region" loop="true"}
+:::
+
+You can trigger a video to play using `[@cr-ship]{play-video="true"}`. [@cr-ship]{play-video="true"}
+
+You can also pause it using `[@cr-ship]{pause-video="true"}`. [@cr-ship]{pause-video="true"}
+
+Apply the `.scale-to-cover` class to videos to ensure that they fill up the whole Closeread sticky column (even if they need to be cropped to do it).
+
+This is great for photojournalistic use cases like interviews where not every part of the frame needs to be visible.
+
+::::
+
+\
+\
+
+The works for sidebar layouts too:
+
+\
+\
+
+::::{.cr-section layout="sidebar-right"}
+
+The video may even be there simply to establish a mood for your story.  
+[Credit: [Domka_1611/Pixabay](https://pixabay.com/videos/fire-evening-nature-forest-autumn-148594/)]{style="font-size: 65%;"} @cr-tea
+
+![](tea.mp4){#cr-tea .scale-to-cover alt="One person pours tea into another person's tea cup in front of an open fire." autoplay="true" loop="true"}
+
+:::{focus-on="cr-tea"}
+You may want to add `autoplay="true"` and `loop="true"` to your videos.
+\
+\
+In this case, we've shifted the video and put a crossfade in the middle of it for a seamless loop.
+:::
+
+::::
+
+\
+\
+
+# Videos that progress on scroll
+
+Let's use the popular `{rayshader}` package to generate a video like that. First, we'll build the scene up:
+
+```{r}
+#| label: build-scene
+library(tibble)
+library(dplyr)
+library(stringr)
+library(purrr)
+library(rayshader)
+
+mont_shadow <- ray_shade(montereybay, zscale = 50, lambert = FALSE)
+mont_amb <- ambient_shade(montereybay, zscale = 50)
+montereybay |>
+  sphere_shade(zscale = 10, texture = "imhof1") |>
+  add_shadow(mont_shadow, 0.5) |>
+  add_shadow(mont_amb, 0) ->
+mont_scene
+```
+
+Now we'll render the movie as `rayshader.mp4`:
+
+```{r}
+#| label: render-images
+# tibble(angle = seq(0.01, 1, by = 0.01) * 360 + 45) |>
+#   mutate(
+#     n = 1:n(),
+#     fname = paste0("image", str_pad(n, 3, pad = "0")),
+#     render = map2(angle, fname, function(angle, fname) {
+#       plot_3d(
+#         mont_scene, montereybay, zscale = 50, fov = 0, theta = angle, phi = 45,
+#         windowsize = c(1000, 800), zoom = 0.75, water = TRUE, waterdepth = 0,
+#         wateralpha = 0.5, watercolor = "lightblue", waterlinecolor = "white",
+#         waterlinealpha = 0.5)
+#       Sys.sleep(0.5)
+#       render_snapshot(fname)
+#     }))
+plot_3d(
+  mont_scene, montereybay, zscale = 50, fov = 0, phi = 45,
+  windowsize = c(1000, 800), zoom = 0.75, water = TRUE, waterdepth = 0,
+  wateralpha = 0.5, watercolor = "lightblue", waterlinecolor = "white",
+  waterlinealpha = 0.5)
+
+render_movie("rayshader.mp4")
+```
+
+Let's incorporate `rayshader.mp4` into a scrolly section:
+
+::::{.cr-section}
+
+Here's our rayshader video! [@cr-rayshader]{.scroll-video}
+
+We can keep talking about it for a while... @cr-rayshader
+
+... and a while longer! @cr-rayshader
+
+:::{#cr-rayshader}
+:::
+
+::::
+
+
+:::{.counter style="position: fixed; top: 10px; right: 10px; background-color: skyblue; border-radius: 5px; padding: 18px 18px 0 18px; line-height: .8em; z-index: 1000"}
+```{ojs}
+md`Active sticky: ${crActiveSticky}`
+md`Active trigger: ${crTriggerIndex}`
+md`Trigger progress: ${(crTriggerProgress * 100).toFixed(1)}%`
+md`Scroll direction: ${crDirection}`
+md`Progress Block progress: ${(crProgressBlock * 100).toFixed(1)}%`
+```
+:::
diff --git a/docs/gallery/demos/videos/rayshader.mp4 b/docs/gallery/demos/videos/rayshader.mp4
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index 0000000..b2e186f
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diff --git a/docs/gallery/demos/videos/ship.mp4 b/docs/gallery/demos/videos/ship.mp4
new file mode 100644
index 0000000..736fa6f
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diff --git a/docs/gallery/demos/videos/tea.mp4 b/docs/gallery/demos/videos/tea.mp4
new file mode 100644
index 0000000..a2c5d2c
Binary files /dev/null and b/docs/gallery/demos/videos/tea.mp4 differ