diyhrt/groups.io/js/browser-image-compression-2.0.2.min.js

/**
 * Browser Image Compression
 * v2.0.2
 * by Donald <donaldcwl@gmail.com>
 * https://github.com/Donaldcwl/browser-image-compression
 */

!function(e,t){"object"==typeof exports&&"undefined"!=typeof module?module.exports=t():"function"==typeof define&&define.amd?define(t):(e="undefined"!=typeof globalThis?globalThis:e||self).imageCompression=t()}(this,(function(){"use strict";function _mergeNamespaces(e,t){return t.forEach((function(t){t&&"string"!=typeof t&&!Array.isArray(t)&&Object.keys(t).forEach((function(r){if("default"!==r&&!(r in e)){var i=Object.getOwnPropertyDescriptor(t,r);Object.defineProperty(e,r,i.get?i:{enumerable:!0,get:function(){return t[r]}})}}))})),Object.freeze(e)}function copyExifWithoutOrientation(e,t){return new Promise((function(r,i){let o;return getApp1Segment(e).then((function(e){try{return o=e,r(new Blob([t.slice(0,2),o,t.slice(2)],{type:"image/jpeg"}))}catch(e){return i(e)}}),i)}))}const getApp1Segment=e=>new Promise(((t,r)=>{const i=new FileReader;i.addEventListener("load",(({target:{result:e}})=>{const i=new DataView(e);let o=0;if(65496!==i.getUint16(o))return r("not a valid JPEG");for(o+=2;;){const a=i.getUint16(o);if(65498===a)break;const s=i.getUint16(o+2);if(65505===a&&1165519206===i.getUint32(o+4)){const a=o+10;let f;switch(i.getUint16(a)){case 18761:f=!0;break;case 19789:f=!1;break;default:return r("TIFF header contains invalid endian")}if(42!==i.getUint16(a+2,f))return r("TIFF header contains invalid version");const l=i.getUint32(a+4,f),c=a+l+2+12*i.getUint16(a+l,f);for(let e=a+l+2;e<c;e+=12){if(274==i.getUint16(e,f)){if(3!==i.getUint16(e+2,f))return r("Orientation data type is invalid");if(1!==i.getUint32(e+4,f))return r("Orientation data count is invalid");i.setUint16(e+8,1,f);break}}return t(e.slice(o,o+2+s))}o+=2+s}return t(new Blob)})),i.readAsArrayBuffer(e)}));var e={};!function(e){var t,r,UZIP={};e.exports=UZIP,UZIP.parse=function(e,t){for(var r=UZIP.bin.readUshort,i=UZIP.bin.readUint,o=0,a={},s=new Uint8Array(e),f=s.length-4;101010256!=i(s,f);)f--;o=f;o+=4;var l=r(s,o+=4);r(s,o+=2);var c=i(s,o+=2),u=i(s,o+=4);o+=4,o=u;for(var h=0;h<l;h++){i(s,o),o+=4,o+=4,o+=4,i(s,o+=4);c=i(s,o+=4);var d=i(s,o+=4),A=r(s,o+=4),g=r(s,o+2),p=r(s,o+4);o+=6;var m=i(s,o+=8);o+=4,o+=A+g+p,UZIP._readLocal(s,m,a,c,d,t)}return a},UZIP._readLocal=function(e,t,r,i,o,a){var s=UZIP.bin.readUshort,f=UZIP.bin.readUint;f(e,t),s(e,t+=4),s(e,t+=2);var l=s(e,t+=2);f(e,t+=2),f(e,t+=4),t+=4;var c=s(e,t+=8),u=s(e,t+=2);t+=2;var h=UZIP.bin.readUTF8(e,t,c);if(t+=c,t+=u,a)r[h]={size:o,csize:i};else{var d=new Uint8Array(e.buffer,t);if(0==l)r[h]=new Uint8Array(d.buffer.slice(t,t+i));else{if(8!=l)throw"unknown compression method: "+l;var A=new Uint8Array(o);UZIP.inflateRaw(d,A),r[h]=A}}},UZIP.inflateRaw=function(e,t){return UZIP.F.inflate(e,t)},UZIP.inflate=function(e,t){return e[0],e[1],UZIP.inflateRaw(new Uint8Array(e.buffer,e.byteOffset+2,e.length-6),t)},UZIP.deflate=function(e,t){null==t&&(t={level:6});var r=0,i=new Uint8Array(50+Math.floor(1.1*e.length));i[r]=120,i[r+1]=156,r+=2,r=UZIP.F.deflateRaw(e,i,r,t.level);var o=UZIP.adler(e,0,e.length);return i[r+0]=o>>>24&255,i[r+1]=o>>>16&255,i[r+2]=o>>>8&255,i[r+3]=o>>>0&255,new Uint8Array(i.buffer,0,r+4)},UZIP.deflateRaw=function(e,t){null==t&&(t={level:6});var r=new Uint8Array(50+Math.floor(1.1*e.length)),i=UZIP.F.deflateRaw(e,r,i,t.level);return new Uint8Array(r.buffer,0,i)},UZIP.encode=function(e,t){null==t&&(t=!1);var r=0,i=UZIP.bin.writeUint,o=UZIP.bin.writeUshort,a={};for(var s in e){var f=!UZIP._noNeed(s)&&!t,l=e[s],c=UZIP.crc.crc(l,0,l.length);a[s]={cpr:f,usize:l.length,crc:c,file:f?UZIP.deflateRaw(l):l}}for(var s in a)r+=a[s].file.length+30+46+2*UZIP.bin.sizeUTF8(s);r+=22;var u=new Uint8Array(r),h=0,d=[];for(var s in a){var A=a[s];d.push(h),h=UZIP._writeHeader(u,h,s,A,0)}var g=0,p=h;for(var s in a){A=a[s];d.push(h),h=UZIP._writeHeader(u,h,s,A,1,d[g++])}var m=h-p;return i(u,h,101010256),h+=4,o(u,h+=4,g),o(u,h+=2,g),i(u,h+=2,m),i(u,h+=4,p),h+=4,h+=2,u.buffer},UZIP._noNeed=function(e){var t=e.split(".").pop().toLowerCase();return-1!="png,jpg,jpeg,zip".indexOf(t)},UZIP._writeHeader=function(e,t,r,i,o,a){var s=UZIP.bin.writeUint,f=UZIP.bin.writeUshort,l=i.file;return s(e,t,0==o?67324752:33639248),t+=4,
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