Module 817762

function(e,t){Object.defineProperty(t,"__esModule",{value:!0}),t.isHeicSignatureIncluded=t.isAvifStringIncluded=t.isFileContaineJfiforExifHeader=t.isFlvStringIncluded=t.isftypStringIncluded=t.findMatroskaDocTypeElements=t.fetchFromObject=t.getFileChunk=void 0,t.getFileChunk=function(e,t=32){let n=e instanceof ArrayBuffer?new Uint8Array(e):e,i=[];if(Array.isArray(e)&&e.every(e=>"number"==typeof e)||e instanceof ArrayBuffer||e instanceof Uint8Array)i=Array.from(n.slice(0,t));else throw TypeError(`Expected the \`file\` argument to be of type \`Array<number>\`, \`Uint8Array\`, or \`ArrayBuffer\`, got \`${typeof e}\``);if(!i.every(e=>"number"==typeof e&&!isNaN(e)))throw TypeError("File content contains illegal values");return i},t.fetchFromObject=function e(t,n){let i=n.indexOf(".");return i>-1?e(t[n.slice(0,i)],n.slice(i+1)):t[n]},t.findMatroskaDocTypeElements=function(e){let t=e.map(e=>String.fromCharCode(e)).join("");return t.includes("webm")?"webm":t.includes("matroska")?"mkv":void 0},t.isftypStringIncluded=function(e){let t=[102,116,121,112];for(let n=0;n<e.length-t.length;n++){let i=!0;for(let r=0;r<t.length;r++)if(e[n+r]!==t[r]){i=!1;break}if(i)return!0}return!1},t.isFlvStringIncluded=function(e){let t=e.slice(0,3);return new TextDecoder().decode(new Uint8Array(t)).includes("FLV")},t.isFileContaineJfiforExifHeader=function(e){let t=e[3];return 224===t||225===t},t.isAvifStringIncluded=function(e){return"ftypavif"===e.slice(4,12).map(e=>String.fromCharCode(e)).join("")},t.isHeicSignatureIncluded=function(e){let t=e.map(e=>String.fromCharCode(e)).join("");return["ftypheic","ftyphevc","ftypmif1","ftypmsf1"].some(e=>t.includes(e))}}