quaggaJS/dist/quagga.min.js

/*! quagga 2015-07-14 */
!function(a,b){var c=b.toString();"undefined"!=typeof module?module.exports=b(c):a.Quagga=b(c)}(this,function(a){/**
 * @license almond 0.2.9 Copyright (c) 2011-2014, The Dojo Foundation All Rights Reserved.
 * Available via the MIT or new BSD license.
 * see: http://github.com/jrburke/almond for details
 */
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return null===g?null:{codeResult:g,barcodeLine:h}}function k(a,b,c){var d,e,f,g=Math.sqrt(Math.pow(a[1][0]-a[0][0],2)+Math.pow(a[1][1]-a[0][1],2)),h=16,i=null,k=Math.sin(c),l=Math.cos(c);for(d=1;h>d&&null===i;d++)e=g/h*d*(d%2===0?-1:1),f={y:e*k,x:e*l},b[0].y+=f.x,b[0].x-=f.y,b[1].y+=f.x,b[1].x-=f.y,i=j(b);return i}function m(a){return Math.sqrt(Math.pow(Math.abs(a[1].y-a[0].y),2)+Math.pow(Math.abs(a[1].x-a[0].x),2))}function n(a){var d,e,f,g,l=o.ctx.overlay;return c.drawBoundingBox&&l&&b.drawPath(a,{x:0,y:1},l,{color:"blue",lineWidth:2}),d=i(a),g=m(d),e=Math.atan2(d[1].y-d[0].y,d[1].x-d[0].x),d=h(d,e,Math.floor(.1*g)),null===d?null:(f=j(d),null===f&&(f=k(a,d,e)),null===f?null:(f&&c.drawScanline&&l&&b.drawPath(d,{x:"x",y:"y"},l,{color:"red",lineWidth:3}),{codeResult:f.codeResult,line:d,angle:e,pattern:f.barcodeLine.line,threshold:f.barcodeLine.threshold}))}var o={ctx:{frequency:null,pattern:null,overlay:null},dom:{frequency:null,pattern:null,overlay:null}},p=[];return e(),f(),g(),{decodeFromBoundingBox:function(a){return n(a)},decodeFromBoundingBoxes:function(a){var b,c;for(b=0;b<a.length;b++)if(c=n(a[b]),c&&c.codeResult)return c.box=a[b],c},setReaders:function(a){c.readers=a,p.length=0,f()}}}};return m}),d("frame_grabber",["cv_utils"],function(a){"use strict";var b={};return b.create=function(b,c){var d,e={},f=b.getConfig(),g=a.imageRef(b.getRealWidth(),b.getRealHeight()),h=b.getCanvasSize(),i=a.imageRef(b.getWidth(),b.getHeight()),j=b.getTopRight(),k=j.x,l=j.y,m=null,n=null;return d=c?c:document.createElement("canvas"),d.width=h.x,d.height=h.y,m=d.getContext("2d"),n=new Uint8Array(i.x*i.y),console.log("FrameGrabber",JSON.stringify({size:i,topRight:j,videoSize:g,canvasSize:h})),e.attachData=function(a){n=a},e.getData=function(){return n},e.grab=function(){var c,d=f.halfSample,e=b.getFrame();return e?(m.drawImage(e,0,0,h.x,h.y),c=m.getImageData(k,l,i.x,i.y).data,d?a.grayAndHalfSampleFromCanvasData(c,i,n):a.computeGray(c,n,f),!0):!1},e.getSize=function(){return i},e},b}),d("html_utils",[],function(){"use strict";function a(a){var b=document.createElement("div");for(b.innerHTML=a;b.firstChild;)return b.firstChild}function b(a,c){for(var d in c)try{a[d]=c[d].constructor==Object?b(a[d],c[d]):c[d]}catch(e){a[d]=c[d]}return a}return{createNode:function(b){return a(b)},mergeObjects:function(a,c){return b(a,c)}}}),d("config",[],function(){var a={inputStream:{name:"Live",type:"LiveStream",constraints:{width:640,height:480,minAspectRatio:0,maxAspectRatio:100,facing:"environment"},area:{top:"0%",right:"0%",left:"0%",bottom:"0%"},singleChannel:!1},tracking:!1,debug:!1,controls:!1,locate:!0,numOfWorkers:4,visual:{show:!0},decoder:{drawBoundingBox:!1,showFrequency:!1,drawScanline:!1,showPattern:!1,readers:["code_128_reader"]},locator:{halfSample:!0,patchSize:"medium",showCanvas:!1,showPatches:!1,showFoundPatches:!1,showSkeleton:!1,showLabels:!1,showPatchLabels:!1,showRemainingPatchLabels:!1,boxFromPatches:{showTransformed:!1,showTransformedBox:!1,showBB:!1}}};return a}),d("events",[],function(){"use strict";var a=function(){function a(a){return e[a]||(e[a]={subscribers:[]}),e[a]}function b(){e={}}function c(a,b){a.async?setTimeout(function(){a.callback(b)},4):a.callback(b)}function d(b,c,d){var e;if("function"==typeof c)e={callback:c,async:d};else if(e=c,!e.callback)throw"Callback was not specified on options";a(b).subscribers.push(e)}var e={};return{subscribe:function(a,b,c){return d(a,b,c)},publish:function(b,d){var e=a(b),f=e.subscribers;e.subscribers=f.filter(function(a){return c(a,d),!a.once})},once:function(a,b,c){d(a,{callback:b,async:c,once:!0})},unsubscribe:function(c,d){var e;c?(e=a(c),e.subscribers=e&&d?e.subscribers.filter(function(a){return a.callback!==d}):[]):b()}}}();return a}),d("camera_access",["html_utils"],function(a){"use strict";function b(a,b,c){"undefined"!=typeof navigator.getUserMedia?navigator.getUserMedia(a,function(a){g=a;var c=window.URL&&window.URL.createObjectURL(a)||a;b.apply(null,[c])},c):c(new TypeError("getUserMedia not available"))}function c(a,b){function c(){d>0?a.videoWidth>0&&a.videoHeight>0?(c