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n,r,i,a=e.getContext("2d"),c=t;for(a.strokeStyle="red",a.fillStyle="red",a.lineWidth=1,n=null!==c?c.insideContours:null;null!==c;){switch(null!==n?(r=n,n=n.nextpeer):(r=c,c=c.nextpeer,n=null!==c?c.insideContours:null),r.dir){case o.CONTOUR_DIR.CW_DIR:a.strokeStyle="red";break;case o.CONTOUR_DIR.CCW_DIR:a.strokeStyle="blue";break;case o.CONTOUR_DIR.UNKNOWN_DIR:a.strokeStyle="green"}i=r.firstVertex,a.beginPath(),a.moveTo(i.x,i.y);do i=i.next,a.lineTo(i.x,i.y);while(i!==r.firstVertex);a.stroke()}}}}}};t.a=o},function(module, exports, __webpack_require__) {"use strict";function Skeletonizer(stdlib, foreign, buffer) {"use asm";var images=new stdlib.Uint8Array(buffer),size=foreign.size|0,imul=stdlib.Math.imul;function erode(inImagePtr, outImagePtr) {inImagePtr=inImagePtr|0;outImagePtr=outImagePtr|0;var v=0,u=0,sum=0,yStart1=0,yStart2=0,xStart1=0,xStart2=0,offset=0;for (v=1; (v|0)<(size - 1|0); v=v+1|0) {offset=offset+size|0;for (u=1; (u|0)<(size - 1|0); u=u+1|0) {yStart1=offset - size|0;yStart2=offset+size|0;xStart1=u - 1|0;xStart2=u+1|0;sum=(images[inImagePtr+yStart1+xStart1|0]|0)+(images[inImagePtr+yStart1+xStart2|0]|0)+(images[inImagePtr+offset+u|0]|0)+(images[inImagePtr+yStart2+xStart1|0]|0)+(images[inImagePtr+yStart2+xStart2|0]|0)|0;if ((sum|0) == (5|0)) {images[outImagePtr+offset+u|0]=1;} else {images[outImagePtr+offset+u|0]=0;}}}return;}function subtract(aImagePtr, bImagePtr, outImagePtr) {aImagePtr=aImagePtr|0;bImagePtr=bImagePtr|0;outImagePtr=outImagePtr|0;var length=0;length=imul(size, size)|0;while ((length|0)>0) {length=length - 1|0;images[outImagePtr+length|0]=(images[aImagePtr+length|0]|0) - (images[bImagePtr+length|0]|0)|0;}}function bitwiseOr(aImagePtr, bImagePtr, outImagePtr) {aImagePtr=aImagePtr|0;bImagePtr=bImagePtr|0;outImagePtr=outImagePtr|0;var length=0;length=imul(size, size)|0;while ((length|0)>0) {length=length - 1|0;images[outImagePtr+length|0]=images[aImagePtr+length|0]|0|(images[bImagePtr+length|0]|0)|0;}}function countNonZero(imagePtr) {imagePtr=imagePtr|0;var sum=0,length=0;length=imul(size, size)|0;while ((length|0)>0) {length=length - 1|0;sum=(sum|0)+(images[imagePtr+length|0]|0)|0;}return sum|0;}function init(imagePtr, value) {imagePtr=imagePtr|0;value=value|0;var length=0;length=imul(size, size)|0;while ((length|0)>0) {length=length - 1|0;images[imagePtr+length|0]=value;}}function dilate(inImagePtr, outImagePtr) {inImagePtr=inImagePtr|0;outImagePtr=outImagePtr|0;var v=0,u=0,sum=0,yStart1=0,yStart2=0,xStart1=0,xStart2=0,offset=0;for (v=1; (v|0)<(size - 1|0); v=v+1|0) {offset=offset+size|0;for (u=1; (u|0)<(size - 1|0); u=u+1|0) {yStart1=offset - size|0;yStart2=offset+size|0;xStart1=u - 1|0;xStart2=u+1|0;sum=(images[inImagePtr+yStart1+xStart1|0]|0)+(images[inImagePtr+yStart1+xStart2|0]|0)+(images[inImagePtr+offset+u|0]|0)+(images[inImagePtr+yStart2+xStart1|0]|0)+(images[inImagePtr+yStart2+xStart2|0]|0)|0;if ((sum|0)>(0|0)) {images[outImagePtr+offset+u|0]=1;} else {images[outImagePtr+offset+u|0]=0;}}}return;}function memcpy(srcImagePtr, dstImagePtr) {srcImagePtr=srcImagePtr|0;dstImagePtr=dstImagePtr|0;var length=0;length=imul(size, size)|0;while ((length|0)>0) {length=length - 1|0;images[dstImagePtr+length|0]=images[srcImagePtr+length|0]|0;}}function zeroBorder(imagePtr) {imagePtr=imagePtr|0;var x=0,y=0;for (x=0; (x|0)<(size - 1|0); x=x+1|0) {images[imagePtr+x|0]=0;images[imagePtr+y|0]=0;y=y+size - 1|0;images[imagePtr+y|0]=0;y=y+1|0;}for (x=0; (x|0)<(size|0); x=x+1|0) {images[imagePtr+y|0]=0;y=y+1|0;}}function skeletonize() {var subImagePtr=0,erodedImagePtr=0,tempImagePtr=0,skelImagePtr=0,sum=0,done=0;erodedImagePtr=imul(size, size)|0;tempImagePtr=erodedImagePtr+erodedImagePtr|0;skelImagePtr=tempImagePtr+erodedImagePtr|0;init(skelImagePtr, 0);zeroBorder(subImagePtr);do {erode(subImagePtr, erodedImagePtr);dilate(erodedImagePtr, tempImagePtr);subtract(subImagePtr, tempImagePtr, tempImagePtr);bitwiseOr(skelImagePtr, tempImagePtr, skelImagePtr);memcpy(erodedImagePtr, subImagePtr);sum=countNonZero(subImagePtr)|0;done=(sum|0) == 0|0;} while (!done);}return {skeletonize: skeletonize};} exports["a"]=Skeletonizer; },function(e,t,n){"use strict";function r(){o.a.call(this),this._counters=[]}var o=n(10),i={ALPHABETH_STRING:{value:"0123456789-$:/.+ABCD"},ALPHABET:{value:[48,49,50,51,52,53,54,55,56,57,45,36,58,47,46,43,65,66,67,68]},CHARACTER_ENCODINGS:{value:[3,6,9,96,18,66,33,36,48,72,12,24,69,81,84,21,26,41,11,14]},START_END:{value:[26,41,11,14]},MIN_ENCODED_CHARS:{value:4},MAX_ACCEPTABLE:{value:2},PADDING:{value:1.5},FORMAT:{value:"codabar",writeable:!1}};r.prototype=Object.create(o.a.prototype,i),r.prototype.constructor=r,r.prototype._decode=function(){var e,t,n,r,o,i=this,a=[];if(this._counters=i._fillCounters(),e=i._findStart(),!e)return null;r=e.startCounter;do{if(n=i._toPattern(r),n<0)return null;if(t=i._patternToChar(n),t<0)return null;if(a.push(t),r+=8,a.length>1&&i._isStartEnd(n))break}while(r<i._counters.length);return a.length-2<i.MIN_ENCODED_CHARS||!i._isStartEnd(n)?null:i._verifyWhitespace(e.startCounter,r-8)&&i._validateResult(a,e.startCounter)?(r=r>i._counters.length?i._counters.length:r,o=e.start+i._sumCounters(e.startCounter,r-8),{code:a.join(""),start:e.start,end:o,startInfo:e,decodedCodes:a}):null},r.prototype._verifyWhitespace=function(e,t){return(e-1<=0||this._counters[e-1]>=this._calculatePatternLength(e)/2)&&(t+8>=this._counters.length||this._counters[t+7]>=this._calculatePatternLength(t)/2)},r.prototype._calculatePatternLength=function(e){var t,n=0;for(t=e;t<e+7;t++)n+=this._counters[t];return n},r.prototype._thresholdResultPattern=function(e,t){var n,r,o,i,a,c=this,s={space:{narrow:{size:0,counts:0,min:0,max:Number.MAX_VALUE},wide:{size:0,counts:0,min:0,max:Number.MAX_VALUE}},bar:{narrow:{size:0,counts:0,min:0,max:Number.MAX_VALUE},wide:{size:0,counts:0,min:0,max:Number.MAX_VALUE}}},u=t;for(o=0;o<e.length;o++){for(a=c._charToPattern(e[o]),i=6;i>=0;i--)n=2===(1&i)?s.bar:s.space,r=1===(1&a)?n.wide:n.narrow,r.size+=c._counters[u+i],r.counts++,a>>=1;u+=8}return["space","bar"].forEach(function(e){var t=s[e];t.wide.min=Math.floor((t.narrow.size/t.narrow.counts+t.wide.size/t.wide.counts)/2),t.narrow.max=Math.ceil(t.wide.min),t.wide.max=Math.ceil((t.wide.size*c.MAX_ACCEPTABLE+c.PADDING)/t.wide.counts)}),s},r.prototype._charToPattern=function(e){var t,n=this,r=e.charCodeAt(0);for(t=0;t<n.ALPHABET.length;t++)if(n.ALPHABET[t]===r)return n.CHARACTER_ENCODINGS[t];return 0},r.prototype._validateResult=function(e,t){var n,r,o,i,a,c,s=this,u=s._thresholdResultPattern(e,t),f=t;for(n=0;n<e.length;n++){for(c=s._charToPattern(e[n]),r=6;r>=0;r--){if(o=0===(1&r)?u.bar:u.space,i=1===(1&c)?o.wide:o.narrow,a=s._counters[f+r],a<i.min||a>i.max)return!1;c>>=1}f+=8}return!0},r.prototype._patternToChar=function(e){var t,n=this;for(t=0;t<n.CHARACTER_ENCODINGS.length;t++)if(n.CHARACTER_ENCODINGS[t]===e)return String.fromCharCode(n.ALPHABET[t]);return-1},r.prototype._computeAlternatingThreshold=function(e,t){var n,r,o=Number.MAX_VALUE,i=0;for(n=e;n<t;n+=2)r=this._counters[n],r>i&&(i=r),r<o&&(o=r);return(o+i)/2|0},r.prototype._toPattern=function(e){var t,n,r,o,i=7,a=e+i,c=1<<i-1,s=0;if(a>this._counters.length)return-1;for(t=this._computeAlternatingThreshold(e,a),n=this._computeAlternatingThreshold(e+1,a),r=0;r<i;r++)o=0===(1&r)?t:n,this._counters[e+r]>o&&(s|=c),c>>=1;return s},r.prototype._isStartEnd=function(e){var t;for(t=0;t<this.START_END.length;t++)if(this.START_END[t]===e)return!0;return!1},r.prototype._sumCounters=function(e,t){var n,r=0;for(n=e;n<t;n++)r+=this._counters[n];return r},r.prototype._findStart=function(){var e,t,n,r=this,o=r._nextUnset(r._row);for(e=1;e<this._counters.length;e++)if(t=r._toPattern(e),t!==-1&&r._isStartEnd(t))return o+=r._sumCounters(0,e),n=o+r._sumCounters(e,e+8),{start:o,end:n,startCounter:e,endCounter:e+8}},t.a=r},function(e,t,n){"use strict";function r(){i.a.call(this)}function o(e,t,n){for(var r=n.length,o=0,i=0;r--;)i+=e[n[r]],o+=t[n[r]];return i/o}var i=n(10),a={CODE_SHIFT:{value:98},CODE_C:{value:99},CODE_B:{value:100},CODE_A:{value:101},START_CODE_A:{value:103},START_CODE_B:{value:104},START_CODE_C:{value:105},STOP_CODE:{value:106},CODE_PATTERN:{value:[[2,1,2,2,2,2],[2,2,2,1,2,2],[2,2,2,2,2,1],[1,2,1,2,2,3],[1,2,1,3,2,2],[1,3,1,2,2,2],[1,2,2,2,1,3],[1,2,2,3,1,2],[1,3,2,2,1,2],[2,2,1,2,1,3],[2,2,1,3,1,2],[2,3,1,2,1,2],[1,1,2,2,3,2],[1,2,2,1,3,2],[1,2,2,2,3,1],[1,1,3,2,2,2],[1,2,3,1,2,2],[1,2,3,2,2,1],[2,2,3,2,1,1],[2,2,1,1,3,2],[2,2,1,2,3,1],[2,1,3,2,1,2],[2,2,3,1,1,2],[3,1,2,1,3,1],[3,1,1,2,2,2],[3,2,1,1,2,2],[3,2,1,2,2,1],[3,1,2,2,1,2],[3,2,2,1,1,2],[3,2,2,2,1,1],[2,1,2,1,2,3],[2,1,2,3,2,1],[2,3,2,1,2,1],[1,1,1,3,2,3],[1,3,1,1,2,3],[1,3,1,3,2,1],[1,1,2,3,1,3],[1,3,2,1,1,3],[1,3,2,3,1,1],[2,1,1,3,1,3],[2,3,1,1,1,3],[2,3,1,3,1,1],[1,1,2,1,3,3],[1,1,2,3,3,1],[1,3,2,1,3,1],[1,1,3,1,2,3],[1,1,3,3,2,1],[1,3,3,1,2,1],[3,1,3,1,2,1],[2,1,1,3,3,1],[2,3,1,1,3,1],[2,1,3,1,1,3],[2,1,3,3,1,1],[2,1,3,1,3,1],[3,1,1,1,2,3],[3,1,1,3,2,1],[3,3,1,1,2,1],[3,1,2,1,1,3],[3,1,2,3,1,1],[3,3,2,1,1,1],[3,1,4,1,1,1],[2,2,1,4,1,1],[4,3,1,1,1,1],[1,1,1,2,2,4],[1,1,1,4,2,2],[1,2,1,1,2,4],[1,2,1,4,2,1],[1,4,1,1,2,2],[1,4,1,2,2,1],[1,1,2,2,1,4],[1,1,2,4,1,2],[1,2,2,1,1,4],[1,2,2,4,1,1],[1,4,2,1,1,2],[1,4,2,2,1,1],[2,4,1,2,1,1],[2,2,1,1,1,4],[4,1,3,1,1,1],[2,4,1,1,1,2],[1,3,4,1,1,1],[1,1,1,2,4,2],[1,2,1,1,4,2],[1,2,1,2,4,1],[1,1,4,2,1,2],[1,2,4,1,1,2],[1,2,4,2,1,1],[4,1,1,2,1,2],[4,2,1,1,1,2],[4,2,1,2,1,1],[2,1,2,1,4,1],[2,1,4,1,2,1],[4,1,2,1,2,1],[1,1,1,1,4,3],[1,1,1,3,4,1],[1,3,1,1,4,1],[1,1,4,1,1,3],[1,1,4,3,1,1],[4,1,1,1,1,3],[4,1,1,3,1,1],[1,1,3,1,4,1],[1,1,4,1,3,1],[3,1,1,1,4,1],[4,1,1,1,3,1],[2,1,1,4,1,2],[2,1,1,2,1,4],[2,1,1,2,3,2],[2,3,3,1,1,1,2]]},SINGLE_CODE_ERROR:{value:.64},AVG_CODE_ERROR:{value:.3},FORMAT:{value:"code_128",writeable:!1},MODULE_INDICES:{value:{bar:[0,2,4],space:[1,3,5]}}};r.prototype=Object.create(i.a.prototype,a),r.prototype.constructor=r,r.prototype._decodeCode=function(e,t){var n,r,i,a=[0,0,0,0,0,0],c=this,s=e,u=!c._row[s],f=0,d={error:Number.MAX_VALUE,code:-1,start:e,end:e,correction:{bar:1,space:1}};for(n=s;n<c._row.length;n++)if(c._row[n]^u)a[f]++;else{if(f===a.length-1){for(t&&c._correct(a,t),r=0;r<c.CODE_PATTERN.length;r++)i=c._matchPattern(a,c.CODE_PATTERN[r]),i<d.error&&(d.code=r,d.error=i);return d.end=n,d.code===-1||d.error>c.AVG_CODE_ERROR?null:(c.CODE_PATTERN[d.code]&&(d.correction.bar=o(c.CODE_PATTERN[d.code],a,this.MODULE_INDICES.bar),d.correction.space=o(c.CODE_PATTERN[d.code],a,this.MODULE_INDICES.space)),d)}f++,a[f]=1,u=!u}return null},r.prototype._correct=function(e,t){this._correctBars(e,t.bar,this.MODULE_INDICES.bar),this._correctBars(e,t.space,this.MODULE_INDICES.space)},r.prototype._findStart=function(){var e,t,n,r,i,a=[0,0,0,0,0,0],c=this,s=c._nextSet(c._row),u=!1,f=0,d={error:Number.MAX_VALUE,code:-1,start:0,end:0,correction:{bar:1,space:1}};for(e=s;e<c._row.length;e++)if(c._row[e]^u)a[f]++;else{if(f===a.length-1){for(i=0,r=0;r<a.length;r++)i+=a[r];for(t=c.START_CODE_A;t<=c.START_CODE_C;t++)n=c._matchPattern(a,c.CODE_PATTERN[t]),n<d.error&&(d.code=t,d.error=n);if(d.error<c.AVG_CODE_ERROR)return d.start=e-i,d.end=e,d.correction.bar=o(c.CODE_PATTERN[d.code],a,this.MODULE_INDICES.bar),d.correction.space=o(c.CODE_PATTERN[d.code],a,this.MODULE_INDICES.space),d;for(r=0;r<4;r++)a[r]=a[r+2];a[4]=0,a[5]=0,f--}else f++;a[f]=1,u=!u}return null},r.prototype._decode=function(){var e,t,n=this,r=n._findStart(),o=null,i=!1,a=[],c=0,s=0,u=[],f=[],d=!1,l=!0;if(null===r)return null;switch(o={code:r.code,start:r.start,end:r.end,correction:{bar:r.correction.bar,space:r.correction.space}},f.push(o),s=o.code,o.code){case n.START_CODE_A:e=n.CODE_A;break;case n.START_CODE_B:e=n.CODE_B;break;case n.START_CODE_C:e=n.CODE_C;break;default:return null}for(;!i;){if(t=d,d=!1,o=n._decodeCode(o.end,o.correction),null!==o)switch(o.code!==n.STOP_CODE&&(l=!0),o.code!==n.STOP_CODE&&(u.push(o.code),c++,s+=c*o.code),f.push(o),e){case n.CODE_A:if(o.code<64)a.push(String.fromCharCode(32+o.code));else if(o.code<96)a.push(String.fromCharCode(o.code-64));else switch(o.code!==n.STOP_CODE&&(l=!1),o.code){case n.CODE_SHIFT:d=!0,e=n.CODE_B;break;case n.CODE_B:e=n.CODE_B;break;case n.CODE_C:e=n.CODE_C;break;case n.STOP_CODE:i=!0}break;case n.CODE_B:if(o.code<96)a.push(String.fromCharCode(32+o.code));else switch(o.code!==n.STOP_CODE&&(l=!1),o.code){case n.CODE_SHIFT:d=!0,e=n.CODE_A;break;case n.CODE_A:e=n.CODE_A;break;case n.CODE_C:e=n.CODE_C;break;case n.STOP_CODE:i=!0}break;case n.CODE_C:if(o.code<100)a.push(o.code<10?"0"+o.code:o.code);else switch(o.code!==n.STOP_CODE&&(l=!1),o.code){case n.CODE_A:e=n.CODE_A;break;case n.CODE_B:e=n.CODE_B;break;case n.STOP_CODE:i=!0}}else i=!0;t&&(e=e===n.CODE_A?n.CODE_B:n.CODE_A)}return null===o?null:(o.end=n._nextUnset(n._row,o.end),n._verifyTrailingWhitespace(o)?(s-=c*u[u.length-1],s%103!==u[u.length-1]?null:a.length?(l&&a.splice(a.length-1,1),{code:a.join(""),start:r.start,end:o.end,codeset:e,startInfo:r,decodedCodes:f,endInfo:o}):null):null)},i.a.prototype._verifyTrailingWhitespace=function(e){var t,n=this;return t=e.end+(e.end-e.start)/2,t<n._row.length&&n._matchRange(e.end,t,0)?e:null},t.a=r},function(e,t,n){"use strict";function r(){o.a.call(this)}var o=n(43),i={IOQ:/[IOQ]/g,AZ09:/[A-Z0-9]{17}/};r.prototype=Object.create(o.a.prototype),r.prototype.constructor=r,r.prototype._decode=function(){var e=o.a.prototype._decode.apply(this);if(!e)return null;var t=e.code;return t?(t=t.replace(i.IOQ,""),t.match(i.AZ09)&&this._checkChecksum(t)?(e.code=t,e):null):null},r.prototype._checkChecksum=function(e){return!!e},t.a=r},function(e,t,n){"use strict";function r(){o.a.call(this)}var o=n(5),i={FORMAT:{value:"ean_2",writeable:!1}};r.prototype=Object.create(o.a.prototype,i),r.prototype.constructor=r,r.prototype.decode=function(e,t){this._row=e;var n,r=0,o=0,i=t,a=this._row.length,c=[],s=[];for(o=0;o<2&&i<a;o++){if(n=this._decodeCode(i),!n)return null;s.push(n),c.push(n.code%10),n.code>=this.CODE_G_START&&(r|=1<<1-o),1!=o&&(i=this._nextSet(this._row,n.end),i=this._nextUnset(this._row,i))}return 2!=c.length||parseInt(c.join(""))%4!==r?null:{code:c.join(""),decodedCodes:s,end:n.end}},t.a=r},function(e,t,n){"use strict";function r(){a.a.call(this)}function o(e){var t;for(t=0;t<10;t++)if(e===s[t])return t;return null}function i(e){var t,n=e.length,r=0;for(t=n-2;t>=0;t-=2)r+=e[t];for(r*=3,t=n-1;t>=0;t-=2)r+=e[t];return r*=3,r%10}var a=n(5),c={FORMAT:{value:"ean_5",writeable:!1}},s=[24,20,18,17,12,6,3,10,9,5];r.prototype=Object.create(a.a.prototype,c),r.prototype.constructor=r,r.prototype.decode=function(e,t){this._row=e;var 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null;if(o=Math.floor((t.end-t.start)/4),e=t.start-10*o,e>=0&&n._matchRange(e,t.start,0))return t;r=t.end,t=null}},r.prototype._verifyTrailingWhitespace=function(e){var t,n=this;return t=e.end+(e.end-e.start)/2,t<n._row.length&&n._matchRange(e.end,t,0)?e:null},r.prototype._findEnd=function(){var e,t,n=this;return n._row.reverse(),e=n._findPattern(n.STOP_PATTERN),n._row.reverse(),null===e?null:(t=e.start,e.start=n._row.length-e.end,e.end=n._row.length-t,null!==e?n._verifyTrailingWhitespace(e):null)},r.prototype._decodePair=function(e){var t,n,r=[],o=this;for(t=0;t<e.length;t++){if(n=o._decodeCode(e[t]),!n)return null;r.push(n)}return r},r.prototype._decodeCode=function(e){var t,n,r,o=this,i=0,a=o.AVG_CODE_ERROR,c={error:Number.MAX_VALUE,code:-1,start:0,end:0};for(t=0;t<e.length;t++)i+=e[t];for(r=0;r<o.CODE_PATTERN.length;r++)n=o._matchPattern(e,o.CODE_PATTERN[r]),n<c.error&&(c.code=r,c.error=n);if(c.error<a)return c},r.prototype._decodePayload=function(e,t,n){for(var r,o,i=this,a=0,c=e.length,s=[[0,0,0,0,0],[0,0,0,0,0]];a<c;){for(r=0;r<5;r++)s[0][r]=e[a]*this.barSpaceRatio[0],s[1][r]=e[a+1]*this.barSpaceRatio[1],a+=2;if(o=i._decodePair(s),!o)return null;for(r=0;r<o.length;r++)t.push(o[r].code+""),n.push(o[r])}return o},r.prototype._verifyCounterLength=function(e){return e.length%10===0},r.prototype._decode=function(){var e,t,n,r,o=this,i=[],a=[];return(e=o._findStart())?(a.push(e),(t=o._findEnd())?(r=o._fillCounters(e.end,t.start,!1),o._verifyCounterLength(r)&&(n=o._decodePayload(r,i,a))?i.length%2!==0||i.length<6?null:(a.push(t),{code:i.join(""),start:e.start,end:t.end,startInfo:e,decodedCodes:a}):null):null):null},r.CONFIG_KEYS={normalizeBarSpaceWidth:{type:"boolean",default:!1,description:"If true, the reader tries to normalize thewidth-difference between bars and spaces"}},t.a=r},function(e,t,n){"use strict";function r(e,t){o.a.call(this,e,t)}var o=n(5),i={CODE_FREQUENCY:{value:[[56,52,50,49,44,38,35,42,41,37],[7,11,13,14,19,25,28,21,22,26]]},STOP_PATTERN:{value:[1/6*7,1/6*7,1/6*7,1/6*7,1/6*7,1/6*7]},FORMAT:{value:"upc_e",writeable:!1}};r.prototype=Object.create(o.a.prototype,i),r.prototype.constructor=r,r.prototype._decodePayload=function(e,t,n){var r,o=this,i=0;for(r=0;r<6;r++){if(e=o._decodeCode(e.end),!e)return null;e.code>=o.CODE_G_START&&(e.code=e.code-o.CODE_G_START,i|=1<<5-r),t.push(e.code),n.push(e)}return o._determineParity(i,t)?e:null},r.prototype._determineParity=function(e,t){var n,r;for(r=0;r<this.CODE_FREQUENCY.length;r++)for(n=0;n<this.CODE_FREQUENCY[r].length;n++)if(e===this.CODE_FREQUENCY[r][n])return t.unshift(r),t.push(n),!0;return!1},r.prototype._convertToUPCA=function(e){var t=[e[0]],n=e[e.length-2];return 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"+e.parameter:"")+"\r\n"}),t},r.parseSsrcMedia=function(e){var t=e.indexOf(" "),n={ssrc:parseInt(e.substr(7,t-7),10)},r=e.indexOf(":",t);return r>-1?(n.attribute=e.substr(t+1,r-t-1),n.value=e.substr(r+1)):n.attribute=e.substr(t+1),n},r.getDtlsParameters=function(e,t){var n=r.splitLines(e);n=n.concat(r.splitLines(t));var o=n.filter(function(e){return 0===e.indexOf("a=fingerprint:")})[0].substr(14),i={role:"auto",fingerprints:[{algorithm:o.split(" ")[0],value:o.split(" ")[1]}]};return i},r.writeDtlsParameters=function(e,t){var n="a=setup:"+t+"\r\n";return e.fingerprints.forEach(function(e){n+="a=fingerprint:"+e.algorithm+" "+e.value+"\r\n"}),n},r.getIceParameters=function(e,t){var n=r.splitLines(e);n=n.concat(r.splitLines(t));var o={usernameFragment:n.filter(function(e){return 0===e.indexOf("a=ice-ufrag:")})[0].substr(12),password:n.filter(function(e){return 0===e.indexOf("a=ice-pwd:")})[0].substr(10)};return o},r.writeIceParameters=function(e){return"a=ice-ufrag:"+e.usernameFragment+"\r\na=ice-pwd:"+e.password+"\r\n"},r.parseRtpParameters=function(e){for(var t={codecs:[],headerExtensions:[],fecMechanisms:[],rtcp:[]},n=r.splitLines(e),o=n[0].split(" "),i=3;i<o.length;i++){var a=o[i],c=r.matchPrefix(e,"a=rtpmap:"+a+" ")[0];if(c){var s=r.parseRtpMap(c),u=r.matchPrefix(e,"a=fmtp:"+a+" ");switch(s.parameters=u.length?r.parseFmtp(u[0]):{},s.rtcpFeedback=r.matchPrefix(e,"a=rtcp-fb:"+a+" ").map(r.parseRtcpFb),t.codecs.push(s),s.name.toUpperCase()){case"RED":case"ULPFEC":t.fecMechanisms.push(s.name.toUpperCase())}}}return r.matchPrefix(e,"a=extmap:").forEach(function(e){t.headerExtensions.push(r.parseExtmap(e))}),t},r.writeRtpDescription=function(e,t){var n="";return n+="m="+e+" ",n+=t.codecs.length>0?"9":"0",n+=" UDP/TLS/RTP/SAVPF ",n+=t.codecs.map(function(e){return void 0!==e.preferredPayloadType?e.preferredPayloadType:e.payloadType}).join(" ")+"\r\n",n+="c=IN IP4 0.0.0.0\r\n",n+="a=rtcp:9 IN IP4 0.0.0.0\r\n",t.codecs.forEach(function(e){n+=r.writeRtpMap(e),n+=r.writeFmtp(e),n+=r.writeRtcpFb(e)}),n+="a=rtcp-mux\r\n",t.headerExtensions.forEach(function(e){n+=r.writeExtmap(e)}),n},r.parseRtpEncodingParameters=function(e){var t,n=[],o=r.parseRtpParameters(e),i=o.fecMechanisms.indexOf("RED")!==-1,a=o.fecMechanisms.indexOf("ULPFEC")!==-1,c=r.matchPrefix(e,"a=ssrc:").map(function(e){return r.parseSsrcMedia(e)}).filter(function(e){return"cname"===e.attribute}),s=c.length>0&&c[0].ssrc,u=r.matchPrefix(e,"a=ssrc-group:FID").map(function(e){var t=e.split(" ");return t.shift(),t.map(function(e){return parseInt(e,10)})});u.length>0&&u[0].length>1&&u[0][0]===s&&(t=u[0][1]),o.codecs.forEach(function(e){if("RTX"===e.name.toUpperCase()&&e.parameters.apt){var r={ssrc:s,codecPayloadType:parseInt(e.parameters.apt,10),rtx:{payloadType:e.payloadType,ssrc:t}};n.push(r),i&&(r=JSON.parse(JSON.stringify(r)),r.fec={ssrc:t,mechanism:a?"red+ulpfec":"red"},n.push(r))}}),0===n.length&&s&&n.push({ssrc:s});var f=r.matchPrefix(e,"b=");return f.length&&(0===f[0].indexOf("b=TIAS:")?f=parseInt(f[0].substr(7),10):0===f[0].indexOf("b=AS:")&&(f=parseInt(f[0].substr(5),10)),n.forEach(function(e){e.maxBitrate=f})),n},r.writeSessionBoilerplate=function(){return"v=0\r\no=thisisadapterortc 8169639915646943137 2 IN IP4 127.0.0.1\r\ns=-\r\nt=0 0\r\n"},r.writeMediaSection=function(e,t,n,o){var i=r.writeRtpDescription(e.kind,t);if(i+=r.writeIceParameters(e.iceGatherer.getLocalParameters()),i+=r.writeDtlsParameters(e.dtlsTransport.getLocalParameters(),"offer"===n?"actpass":"active"),i+="a=mid:"+e.mid+"\r\n",i+=e.rtpSender&&e.rtpReceiver?"a=sendrecv\r\n":e.rtpSender?"a=sendonly\r\n":e.rtpReceiver?"a=recvonly\r\n":"a=inactive\r\n",e.rtpSender){var a="msid:"+o.id+" "+e.rtpSender.track.id+"\r\n";i+="a="+a,i+="a=ssrc:"+e.sendEncodingParameters[0].ssrc+" "+a}return i+="a=ssrc:"+e.sendEncodingParameters[0].ssrc+" cname:"+r.localCName+"\r\n"},r.getDirection=function(e,t){for(var n=r.splitLines(e),o=0;o<n.length;o++)switch(n[o]){case"a=sendrecv":case"a=sendonly":case"a=recvonly":case"a=inactive":return n[o].substr(2)}return t?r.getDirection(t):"sendrecv"},e.exports=r},function(e,t,n){"use strict";!function(){var t=n(0).log,r=n(0).browserDetails;e.exports.browserDetails=r,e.exports.extractVersion=n(0).extractVersion,e.exports.disableLog=n(0).disableLog;var o=n(206)||null,i=n(208)||null,a=n(210)||null,c=n(212)||null;switch(r.browser){case"opera":case"chrome":if(!o||!o.shimPeerConnection)return void t("Chrome shim is not included in this adapter release.");t("adapter.js shimming chrome."),e.exports.browserShim=o,o.shimGetUserMedia(),o.shimMediaStream(),o.shimSourceObject(),o.shimPeerConnection(),o.shimOnTrack();break;case"firefox":if(!a||!a.shimPeerConnection)return void t("Firefox shim is not included in this adapter release.");t("adapter.js shimming firefox."),e.exports.browserShim=a,a.shimGetUserMedia(),a.shimSourceObject(),a.shimPeerConnection(),a.shimOnTrack();break;case"edge":if(!i||!i.shimPeerConnection)return void t("MS edge shim is not included in this adapter release.");t("adapter.js shimming edge."),e.exports.browserShim=i,i.shimGetUserMedia(),i.shimPeerConnection();break;case"safari":if(!c)return void t("Safari shim is not included in this adapter release.");t("adapter.js shimming safari."),e.exports.browserShim=c,c.shimGetUserMedia();break;default:t("Unsupported browser!")}}()},function(e,t,n){"use strict";var r=n(0).log,o=n(0).browserDetails,i={shimMediaStream:function(){window.MediaStream=window.MediaStream||window.webkitMediaStream},shimOnTrack:function(){"object"!=typeof window||!window.RTCPeerConnection||"ontrack"in window.RTCPeerConnection.prototype||Object.defineProperty(window.RTCPeerConnection.prototype,"ontrack",{get:function(){return this._ontrack},set:function(e){var t=this;this._ontrack&&(this.removeEventListener("track",this._ontrack),this.removeEventListener("addstream",this._ontrackpoly)),this.addEventListener("track",this._ontrack=e),this.addEventListener("addstream",this._ontrackpoly=function(e){e.stream.addEventListener("addtrack",function(n){var r=new Event("track");r.track=n.track,r.receiver={track:n.track},r.streams=[e.stream],t.dispatchEvent(r)}),e.stream.getTracks().forEach(function(t){var n=new Event("track");n.track=t,n.receiver={track:t},n.streams=[e.stream],this.dispatchEvent(n)}.bind(this))}.bind(this))}})},shimSourceObject:function(){"object"==typeof window&&(!window.HTMLMediaElement||"srcObject"in window.HTMLMediaElement.prototype||Object.defineProperty(window.HTMLMediaElement.prototype,"srcObject",{get:function(){return this._srcObject},set:function(e){var t=this;return this._srcObject=e,this.src&&URL.revokeObjectURL(this.src),e?(this.src=URL.createObjectURL(e),e.addEventListener("addtrack",function(){t.src&&URL.revokeObjectURL(t.src),t.src=URL.createObjectURL(e)}),void e.addEventListener("removetrack",function(){t.src&&URL.revokeObjectURL(t.src),t.src=URL.createObjectURL(e)})):void(this.src="")}}))},shimPeerConnection:function(){window.RTCPeerConnection=function(e,t){r("PeerConnection"),e&&e.iceTransportPolicy&&(e.iceTransports=e.iceTransportPolicy);var n=new webkitRTCPeerConnection(e,t),o=n.getStats.bind(n);return n.getStats=function(e,t,n){var r=this,i=arguments;if(arguments.length>0&&"function"==typeof e)return o(e,t);var a=function(e){var t={},n=e.result();return n.forEach(function(e){var n={id:e.id,timestamp:e.timestamp,type:e.type};e.names().forEach(function(t){n[t]=e.stat(t)}),t[n.id]=n}),t},c=function(e,t){var n=new Map(Object.keys(e).map(function(t){return[t,e[t]]}));return t=t||e,Object.keys(t).forEach(function(e){n[e]=t[e]}),n};if(arguments.length>=2){var s=function(e){i[1](c(a(e)))};return o.apply(this,[s,arguments[0]])}return new Promise(function(t,n){1===i.length&&"object"==typeof e?o.apply(r,[function(e){t(c(a(e)))},n]):o.apply(r,[function(e){t(c(a(e),e.result()))},n])}).then(t,n)},n},window.RTCPeerConnection.prototype=webkitRTCPeerConnection.prototype,webkitRTCPeerConnection.generateCertificate&&Object.defineProperty(window.RTCPeerConnection,"generateCertificate",{get:function(){return webkitRTCPeerConnection.generateCertificate}}),["createOffer","createAnswer"].forEach(function(e){var t=webkitRTCPeerConnection.prototype[e];webkitRTCPeerConnection.prototype[e]=function(){var e=this;if(arguments.length<1||1===arguments.length&&"object"==typeof arguments[0]){var n=1===arguments.length?arguments[0]:void 0;return new Promise(function(r,o){t.apply(e,[r,o,n])})}return t.apply(this,arguments)}}),o.version<51&&["setLocalDescription","setRemoteDescription","addIceCandidate"].forEach(function(e){var t=webkitRTCPeerConnection.prototype[e];webkitRTCPeerConnection.prototype[e]=function(){var e=arguments,n=this,r=new Promise(function(r,o){t.apply(n,[e[0],r,o])});return e.length<2?r:r.then(function(){e[1].apply(null,[])},function(t){e.length>=3&&e[2].apply(null,[t])})}}),["setLocalDescription","setRemoteDescription","addIceCandidate"].forEach(function(e){var t=webkitRTCPeerConnection.prototype[e];webkitRTCPeerConnection.prototype[e]=function(){return arguments[0]=new("addIceCandidate"===e?RTCIceCandidate:RTCSessionDescription)(arguments[0]),t.apply(this,arguments)}});var e=RTCPeerConnection.prototype.addIceCandidate;RTCPeerConnection.prototype.addIceCandidate=function(){return arguments[0]?e.apply(this,arguments):(arguments[1]&&arguments[1].apply(null),Promise.resolve())}}};e.exports={shimMediaStream:i.shimMediaStream,shimOnTrack:i.shimOnTrack,shimSourceObject:i.shimSourceObject,shimPeerConnection:i.shimPeerConnection,shimGetUserMedia:n(207)}},function(e,t,n){"use strict";var r=n(0).log;e.exports=function(){var e=function(e){if("object"!=typeof e||e.mandatory||e.optional)return e;var t={};return Object.keys(e).forEach(function(n){if("require"!==n&&"advanced"!==n&&"mediaSource"!==n){var r="object"==typeof e[n]?e[n]:{ideal:e[n]};void 0!==r.exact&&"number"==typeof r.exact&&(r.min=r.max=r.exact);var o=function(e,t){return e?e+t.charAt(0).toUpperCase()+t.slice(1):"deviceId"===t?"sourceId":t};if(void 0!==r.ideal){t.optional=t.optional||[];var i={};"number"==typeof r.ideal?(i[o("min",n)]=r.ideal,t.optional.push(i),i={},i[o("max",n)]=r.ideal,t.optional.push(i)):(i[o("",n)]=r.ideal,t.optional.push(i))}void 0!==r.exact&&"number"!=typeof r.exact?(t.mandatory=t.mandatory||{},t.mandatory[o("",n)]=r.exact):["min","max"].forEach(function(e){void 0!==r[e]&&(t.mandatory=t.mandatory||{},t.mandatory[o(e,n)]=r[e])})}}),e.advanced&&(t.optional=(t.optional||[]).concat(e.advanced)),t},t=function(t,n){if(t=JSON.parse(JSON.stringify(t)),t&&t.audio&&(t.audio=e(t.audio)),t&&"object"==typeof t.video){var o=t.video.facingMode;if(o=o&&("object"==typeof o?o:{ideal:o}),o&&("user"===o.exact||"environment"===o.exact||"user"===o.ideal||"environment"===o.ideal)&&(!navigator.mediaDevices.getSupportedConstraints||!navigator.mediaDevices.getSupportedConstraints().facingMode)&&(delete t.video.facingMode,"environment"===o.exact||"environment"===o.ideal))return navigator.mediaDevices.enumerateDevices().then(function(i){i=i.filter(function(e){return"videoinput"===e.kind});var a=i.find(function(e){return e.label.toLowerCase().indexOf("back")!==-1})||i.length&&i[i.length-1];return a&&(t.video.deviceId=o.exact?{exact:a.deviceId}:{ideal:a.deviceId}),t.video=e(t.video),r("chrome: "+JSON.stringify(t)),n(t)});t.video=e(t.video)}return r("chrome: "+JSON.stringify(t)),n(t)},n=function(e){return{name:{PermissionDeniedError:"NotAllowedError",ConstraintNotSatisfiedError:"OverconstrainedError"}[e.name]||e.name,message:e.message,constraint:e.constraintName,toString:function(){return this.name+(this.message&&": ")+this.message}}},o=function(e,r,o){t(e,function(e){navigator.webkitGetUserMedia(e,r,function(e){o(n(e))})})};navigator.getUserMedia=o;var i=function(e){return new Promise(function(t,n){navigator.getUserMedia(e,t,n)})};if(navigator.mediaDevices||(navigator.mediaDevices={getUserMedia:i,enumerateDevices:function(){return new Promise(function(e){var t={audio:"audioinput",video:"videoinput"};return MediaStreamTrack.getSources(function(n){e(n.map(function(e){return{label:e.label,kind:t[e.kind],deviceId:e.id,groupId:""}}))})})}}),navigator.mediaDevices.getUserMedia){var a=navigator.mediaDevices.getUserMedia.bind(navigator.mediaDevices);navigator.mediaDevices.getUserMedia=function(e){return t(e,function(e){return a(e).then(function(t){if(e.audio&&!t.getAudioTracks().length||e.video&&!t.getVideoTracks().length)throw t.getTracks().forEach(function(e){e.stop()}),new DOMException("","NotFoundError");return t},function(e){return Promise.reject(n(e))})})}}else navigator.mediaDevices.getUserMedia=function(e){return i(e)};"undefined"==typeof navigator.mediaDevices.addEventListener&&(navigator.mediaDevices.addEventListener=function(){r("Dummy mediaDevices.addEventListener called.")}),"undefined"==typeof navigator.mediaDevices.removeEventListener&&(navigator.mediaDevices.removeEventListener=function(){r("Dummy mediaDevices.removeEventListener called.")})}},function(e,t,n){"use strict";var r=n(204),o=n(0).browserDetails,i={shimPeerConnection:function(){if(window.RTCIceGatherer){window.RTCIceCandidate||(window.RTCIceCandidate=function(e){return e}),window.RTCSessionDescription||(window.RTCSessionDescription=function(e){return e});var e=Object.getOwnPropertyDescriptor(MediaStreamTrack.prototype,"enabled");Object.defineProperty(MediaStreamTrack.prototype,"enabled",{set:function(t){e.set.call(this,t);var n=new Event("enabled");n.enabled=t,this.dispatchEvent(n)}})}window.RTCPeerConnection=function(e){var t=this,n=document.createDocumentFragment();if(["addEventListener","removeEventListener","dispatchEvent"].forEach(function(e){t[e]=n[e].bind(n)}),this.onicecandidate=null,this.onaddstream=null,this.ontrack=null,this.onremovestream=null,this.onsignalingstatechange=null,this.oniceconnectionstatechange=null,this.onnegotiationneeded=null,this.ondatachannel=null,this.localStreams=[],this.remoteStreams=[],this.getLocalStreams=function(){return t.localStreams},this.getRemoteStreams=function(){return t.remoteStreams},this.localDescription=new RTCSessionDescription({type:"",sdp:""}),this.remoteDescription=new RTCSessionDescription({type:"",sdp:""}),this.signalingState="stable",this.iceConnectionState="new",this.iceGatheringState="new",this.iceOptions={gatherPolicy:"all",iceServers:[]},e&&e.iceTransportPolicy)switch(e.iceTransportPolicy){case"all":case"relay":this.iceOptions.gatherPolicy=e.iceTransportPolicy;break;case"none":throw new TypeError('iceTransportPolicy "none" not supported')}if(this.usingBundle=e&&"max-bundle"===e.bundlePolicy,e&&e.iceServers){var r=JSON.parse(JSON.stringify(e.iceServers));this.iceOptions.iceServers=r.filter(function(e){if(e&&e.urls){var t=e.urls;return"string"==typeof t&&(t=[t]),t=t.filter(function(e){return 0===e.indexOf("turn:")&&e.indexOf("transport=udp")!==-1&&e.indexOf("turn:[")===-1||0===e.indexOf("stun:")&&o.version>=14393})[0],!!t}return!1})}this._config=e,this.transceivers=[],this._localIceCandidatesBuffer=[]},window.RTCPeerConnection.prototype._emitBufferedCandidates=function(){var e=this,t=r.splitSections(e.localDescription.sdp);this._localIceCandidatesBuffer.forEach(function(n){var r=!n.candidate||0===Object.keys(n.candidate).length;if(r)for(var o=1;o<t.length;o++)t[o].indexOf("\r\na=end-of-candidates\r\n")===-1&&(t[o]+="a=end-of-candidates\r\n");else n.candidate.candidate.indexOf("typ endOfCandidates")===-1&&(t[n.candidate.sdpMLineIndex+1]+="a="+n.candidate.candidate+"\r\n");if(e.localDescription.sdp=t.join(""),e.dispatchEvent(n),null!==e.onicecandidate&&e.onicecandidate(n),!n.candidate&&"complete"!==e.iceGatheringState){var i=e.transceivers.every(function(e){return e.iceGatherer&&"completed"===e.iceGatherer.state});i&&(e.iceGatheringState="complete")}}),this._localIceCandidatesBuffer=[]},window.RTCPeerConnection.prototype.getConfiguration=function(){return this._config},window.RTCPeerConnection.prototype.addStream=function(e){var t=e.clone();e.getTracks().forEach(function(e,n){var r=t.getTracks()[n];e.addEventListener("enabled",function(e){r.enabled=e.enabled})}),this.localStreams.push(t),this._maybeFireNegotiationNeeded()},window.RTCPeerConnection.prototype.removeStream=function(e){var t=this.localStreams.indexOf(e);t>-1&&(this.localStreams.splice(t,1),this._maybeFireNegotiationNeeded())},window.RTCPeerConnection.prototype.getSenders=function(){return this.transceivers.filter(function(e){return!!e.rtpSender}).map(function(e){return e.rtpSender})},window.RTCPeerConnection.prototype.getReceivers=function(){return this.transceivers.filter(function(e){return!!e.rtpReceiver}).map(function(e){return e.rtpReceiver})},window.RTCPeerConnection.prototype._getCommonCapabilities=function(e,t){var n={codecs:[],headerExtensions:[],fecMechanisms:[]};return e.codecs.forEach(function(e){for(var r=0;r<t.codecs.length;r++){var o=t.codecs[r];if(e.name.toLowerCase()===o.name.toLowerCase()&&e.clockRate===o.clockRate){o.numChannels=Math.min(e.numChannels,o.numChannels),n.codecs.push(o),o.rtcpFeedback=o.rtcpFeedback.filter(function(t){for(var n=0;n<e.rtcpFeedback.length;n++)if(e.rtcpFeedback[n].type===t.type&&e.rtcpFeedback[n].parameter===t.parameter)return!0;return!1});break}}}),e.headerExtensions.forEach(function(e){for(var r=0;r<t.headerExtensions.length;r++){var o=t.headerExtensions[r];if(e.uri===o.uri){n.headerExtensions.push(o);break}}}),n},window.RTCPeerConnection.prototype._createIceAndDtlsTransports=function(e,t){var n=this,o=new RTCIceGatherer(n.iceOptions),i=new RTCIceTransport(o);o.onlocalcandidate=function(a){var c=new Event("icecandidate");c.candidate={sdpMid:e,sdpMLineIndex:t};var s=a.candidate,u=!s||0===Object.keys(s).length;u?(void 0===o.state&&(o.state="completed"),c.candidate.candidate="candidate:1 1 udp 1 0.0.0.0 9 typ endOfCandidates"):(s.component="RTCP"===i.component?2:1,c.candidate.candidate=r.writeCandidate(s));var f=r.splitSections(n.localDescription.sdp);c.candidate.candidate.indexOf("typ endOfCandidates")===-1?f[c.candidate.sdpMLineIndex+1]+="a="+c.candidate.candidate+"\r\n":f[c.candidate.sdpMLineIndex+1]+="a=end-of-candidates\r\n",n.localDescription.sdp=f.join("");var d=n.transceivers.every(function(e){return e.iceGatherer&&"completed"===e.iceGatherer.state});switch(n.iceGatheringState){case"new":n._localIceCandidatesBuffer.push(c),u&&d&&n._localIceCandidatesBuffer.push(new Event("icecandidate"));break;case"gathering":n._emitBufferedCandidates(),n.dispatchEvent(c),null!==n.onicecandidate&&n.onicecandidate(c),d&&(n.dispatchEvent(new Event("icecandidate")),null!==n.onicecandidate&&n.onicecandidate(new Event("icecandidate")),n.iceGatheringState="complete");break;case"complete":}},i.onicestatechange=function(){n._updateConnectionState()};var a=new RTCDtlsTransport(i);return a.ondtlsstatechange=function(){n._updateConnectionState()},a.onerror=function(){a.state="failed",n._updateConnectionState()},{iceGatherer:o,iceTransport:i,dtlsTransport:a}},window.RTCPeerConnection.prototype._transceive=function(e,t,n){var o=this._getCommonCapabilities(e.localCapabilities,e.remoteCapabilities);t&&e.rtpSender&&(o.encodings=e.sendEncodingParameters,o.rtcp={cname:r.localCName},e.recvEncodingParameters.length&&(o.rtcp.ssrc=e.recvEncodingParameters[0].ssrc),e.rtpSender.send(o)),n&&e.rtpReceiver&&("video"===e.kind&&e.recvEncodingParameters&&e.recvEncodingParameters.forEach(function(e){delete e.rtx}),o.encodings=e.recvEncodingParameters,o.rtcp={cname:e.cname},e.sendEncodingParameters.length&&(o.rtcp.ssrc=e.sendEncodingParameters[0].ssrc),e.rtpReceiver.receive(o))},window.RTCPeerConnection.prototype.setLocalDescription=function(e){var t,n,o=this;if("offer"===e.type)this._pendingOffer&&(t=r.splitSections(e.sdp),n=t.shift(),t.forEach(function(e,t){var n=r.parseRtpParameters(e);o._pendingOffer[t].localCapabilities=n}),this.transceivers=this._pendingOffer,delete this._pendingOffer);else if("answer"===e.type){t=r.splitSections(o.remoteDescription.sdp),n=t.shift();var i=r.matchPrefix(n,"a=ice-lite").length>0;t.forEach(function(e,t){var a=o.transceivers[t],c=a.iceGatherer,s=a.iceTransport,u=a.dtlsTransport,f=a.localCapabilities,d=a.remoteCapabilities,l="0"===e.split("\n",1)[0].split(" ",2)[1];if(!l&&!a.isDatachannel){var p=r.getIceParameters(e,n);if(i){var h=r.matchPrefix(e,"a=candidate:").map(function(e){return r.parseCandidate(e)}).filter(function(e){return"1"===e.component});h.length&&s.setRemoteCandidates(h)}var v=r.getDtlsParameters(e,n);i&&(v.role="server"),o.usingBundle&&0!==t||(s.start(c,p,i?"controlling":"controlled"),u.start(v));var g=o._getCommonCapabilities(f,d);o._transceive(a,g.codecs.length>0,!1)}})}switch(this.localDescription={type:e.type,sdp:e.sdp},e.type){case"offer":this._updateSignalingState("have-local-offer");break;case"answer":this._updateSignalingState("stable");break;default:throw new TypeError('unsupported type "'+e.type+'"')}var a=arguments.length>1&&"function"==typeof arguments[1];if(a){var c=arguments[1];window.setTimeout(function(){c(),"new"===o.iceGatheringState&&(o.iceGatheringState="gathering"),o._emitBufferedCandidates()},0)}var s=Promise.resolve();return s.then(function(){a||("new"===o.iceGatheringState&&(o.iceGatheringState="gathering"),window.setTimeout(o._emitBufferedCandidates.bind(o),500))}),s},window.RTCPeerConnection.prototype.setRemoteDescription=function(e){var t=this,n=new MediaStream,o=[],i=r.splitSections(e.sdp),a=i.shift(),c=r.matchPrefix(a,"a=ice-lite").length>0;switch(this.usingBundle=r.matchPrefix(a,"a=group:BUNDLE ").length>0,i.forEach(function(i,s){var u=r.splitLines(i),f=u[0].substr(2).split(" "),d=f[0],l="0"===f[1],p=r.getDirection(i,a),h=r.matchPrefix(i,"a=mid:");if(h=h.length?h[0].substr(6):r.generateIdentifier(),"application"===d&&"DTLS/SCTP"===f[2])return void(t.transceivers[s]={mid:h,isDatachannel:!0});var v,g,m,y,b,_,w,x,C,E,T,R,O=r.parseRtpParameters(i);l||(T=r.getIceParameters(i,a),R=r.getDtlsParameters(i,a),R.role="client"),x=r.parseRtpEncodingParameters(i);var S,P=r.matchPrefix(i,"a=ssrc:").map(function(e){return r.parseSsrcMedia(e)}).filter(function(e){return"cname"===e.attribute})[0];P&&(S=P.value);var D=r.matchPrefix(i,"a=end-of-candidates",a).length>0,A=r.matchPrefix(i,"a=candidate:").map(function(e){return r.parseCandidate(e)}).filter(function(e){return"1"===e.component});if("offer"!==e.type||l)"answer"!==e.type||l||(v=t.transceivers[s],g=v.iceGatherer,m=v.iceTransport,y=v.dtlsTransport,b=v.rtpSender,_=v.rtpReceiver,w=v.sendEncodingParameters,C=v.localCapabilities,t.transceivers[s].recvEncodingParameters=x,t.transceivers[s].remoteCapabilities=O,t.transceivers[s].cname=S,(c||D)&&A.length&&m.setRemoteCandidates(A),t.usingBundle&&0!==s||(m.start(g,T,"controlling"),y.start(R)),t._transceive(v,"sendrecv"===p||"recvonly"===p,"sendrecv"===p||"sendonly"===p),!_||"sendrecv"!==p&&"sendonly"!==p?delete v.rtpReceiver:(E=_.track,o.push([E,_]),n.addTrack(E)));else{var j=t.usingBundle&&s>0?{iceGatherer:t.transceivers[0].iceGatherer,iceTransport:t.transceivers[0].iceTransport,dtlsTransport:t.transceivers[0].dtlsTransport}:t._createIceAndDtlsTransports(h,s);if(D&&j.iceTransport.setRemoteCandidates(A),C=RTCRtpReceiver.getCapabilities(d),C.codecs=C.codecs.filter(function(e){return"rtx"!==e.name}),w=[{ssrc:1001*(2*s+2)}],_=new RTCRtpReceiver(j.dtlsTransport,d),E=_.track,o.push([E,_]),n.addTrack(E),t.localStreams.length>0&&t.localStreams[0].getTracks().length>=s){var M;"audio"===d?M=t.localStreams[0].getAudioTracks()[0]:"video"===d&&(M=t.localStreams[0].getVideoTracks()[0]),M&&(b=new RTCRtpSender(M,j.dtlsTransport))}t.transceivers[s]={iceGatherer:j.iceGatherer,iceTransport:j.iceTransport,dtlsTransport:j.dtlsTransport,localCapabilities:C,remoteCapabilities:O,rtpSender:b,rtpReceiver:_,kind:d,mid:h,cname:S,sendEncodingParameters:w,recvEncodingParameters:x},t._transceive(t.transceivers[s],!1,"sendrecv"===p||"sendonly"===p)}}),this.remoteDescription={type:e.type,sdp:e.sdp},e.type){case"offer":this._updateSignalingState("have-remote-offer");break;case"answer":this._updateSignalingState("stable");break;default:throw new TypeError('unsupported type "'+e.type+'"')}return n.getTracks().length&&(t.remoteStreams.push(n),window.setTimeout(function(){var e=new Event("addstream");e.stream=n,t.dispatchEvent(e),null!==t.onaddstream&&window.setTimeout(function(){t.onaddstream(e)},0),o.forEach(function(r){var o=r[0],i=r[1],a=new Event("track");a.track=o,a.receiver=i,a.streams=[n],t.dispatchEvent(e),null!==t.ontrack&&window.setTimeout(function(){t.ontrack(a)},0)})},0)),arguments.length>1&&"function"==typeof arguments[1]&&window.setTimeout(arguments[1],0),Promise.resolve()},window.RTCPeerConnection.prototype.close=function(){this.transceivers.forEach(function(e){e.iceTransport&&e.iceTransport.stop(),e.dtlsTransport&&e.dtlsTransport.stop(),e.rtpSender&&e.rtpSender.stop(),e.rtpReceiver&&e.rtpReceiver.stop()}),this._updateSignalingState("closed")},window.RTCPeerConnection.prototype._updateSignalingState=function(e){this.signalingState=e;var t=new Event("signalingstatechange");this.dispatchEvent(t),null!==this.onsignalingstatechange&&this.onsignalingstatechange(t)},window.RTCPeerConnection.prototype._maybeFireNegotiationNeeded=function(){var e=new Event("negotiationneeded");this.dispatchEvent(e),null!==this.onnegotiationneeded&&this.onnegotiationneeded(e)},window.RTCPeerConnection.prototype._updateConnectionState=function(){var e,t=this,n={new:0,closed:0,connecting:0,checking:0,connected:0,completed:0,failed:0};if(this.transceivers.forEach(function(e){n[e.iceTransport.state]++,n[e.dtlsTransport.state]++}),n.connected+=n.completed,e="new",n.failed>0?e="failed":n.connecting>0||n.checking>0?e="connecting":n.disconnected>0?e="disconnected":n.new>0?e="new":(n.connected>0||n.completed>0)&&(e="connected"),e!==t.iceConnectionState){t.iceConnectionState=e;var r=new Event("iceconnectionstatechange");this.dispatchEvent(r),null!==this.oniceconnectionstatechange&&this.oniceconnectionstatechange(r)}},window.RTCPeerConnection.prototype.createOffer=function(){var e=this;if(this._pendingOffer)throw new Error("createOffer called while there is a pending offer.");var t;1===arguments.length&&"function"!=typeof arguments[0]?t=arguments[0]:3===arguments.length&&(t=arguments[2]);var n=[],o=0,i=0;if(this.localStreams.length&&(o=this.localStreams[0].getAudioTracks().length,i=this.localStreams[0].getVideoTracks().length),t){if(t.mandatory||t.optional)throw new TypeError("Legacy mandatory/optional constraints not supported.");void 0!==t.offerToReceiveAudio&&(o=t.offerToReceiveAudio),void 0!==t.offerToReceiveVideo&&(i=t.offerToReceiveVideo)}for(this.localStreams.length&&this.localStreams[0].getTracks().forEach(function(e){n.push({kind:e.kind,track:e,wantReceive:"audio"===e.kind?o>0:i>0}),"audio"===e.kind?o--:"video"===e.kind&&i--});o>0||i>0;)o>0&&(n.push({kind:"audio",wantReceive:!0}),o--),i>0&&(n.push({kind:"video",wantReceive:!0
}),i--);var a=r.writeSessionBoilerplate(),c=[];n.forEach(function(t,n){var o=t.track,i=t.kind,a=r.generateIdentifier(),s=e.usingBundle&&n>0?{iceGatherer:c[0].iceGatherer,iceTransport:c[0].iceTransport,dtlsTransport:c[0].dtlsTransport}:e._createIceAndDtlsTransports(a,n),u=RTCRtpSender.getCapabilities(i);u.codecs=u.codecs.filter(function(e){return"rtx"!==e.name}),u.codecs.forEach(function(e){"H264"===e.name&&void 0===e.parameters["level-asymmetry-allowed"]&&(e.parameters["level-asymmetry-allowed"]="1")});var f,d,l=[{ssrc:1001*(2*n+1)}];o&&(f=new RTCRtpSender(o,s.dtlsTransport)),t.wantReceive&&(d=new RTCRtpReceiver(s.dtlsTransport,i)),c[n]={iceGatherer:s.iceGatherer,iceTransport:s.iceTransport,dtlsTransport:s.dtlsTransport,localCapabilities:u,remoteCapabilities:null,rtpSender:f,rtpReceiver:d,kind:i,mid:a,sendEncodingParameters:l,recvEncodingParameters:null}}),this.usingBundle&&(a+="a=group:BUNDLE "+c.map(function(e){return e.mid}).join(" ")+"\r\n"),n.forEach(function(t,n){var o=c[n];a+=r.writeMediaSection(o,o.localCapabilities,"offer",e.localStreams[0])}),this._pendingOffer=c;var s=new RTCSessionDescription({type:"offer",sdp:a});return arguments.length&&"function"==typeof arguments[0]&&window.setTimeout(arguments[0],0,s),Promise.resolve(s)},window.RTCPeerConnection.prototype.createAnswer=function(){var e=this,t=r.writeSessionBoilerplate();this.usingBundle&&(t+="a=group:BUNDLE "+this.transceivers.map(function(e){return e.mid}).join(" ")+"\r\n"),this.transceivers.forEach(function(n){if(n.isDatachannel)return void(t+="m=application 0 DTLS/SCTP 5000\r\nc=IN IP4 0.0.0.0\r\na=mid:"+n.mid+"\r\n");var o=e._getCommonCapabilities(n.localCapabilities,n.remoteCapabilities);t+=r.writeMediaSection(n,o,"answer",e.localStreams[0])});var n=new RTCSessionDescription({type:"answer",sdp:t});return arguments.length&&"function"==typeof arguments[0]&&window.setTimeout(arguments[0],0,n),Promise.resolve(n)},window.RTCPeerConnection.prototype.addIceCandidate=function(e){if(e){var t=e.sdpMLineIndex;if(e.sdpMid)for(var n=0;n<this.transceivers.length;n++)if(this.transceivers[n].mid===e.sdpMid){t=n;break}var o=this.transceivers[t];if(o){var i=Object.keys(e.candidate).length>0?r.parseCandidate(e.candidate):{};if("tcp"===i.protocol&&(0===i.port||9===i.port))return;if("1"!==i.component)return;"endOfCandidates"===i.type&&(i={}),o.iceTransport.addRemoteCandidate(i);var a=r.splitSections(this.remoteDescription.sdp);a[t+1]+=(i.type?e.candidate.trim():"a=end-of-candidates")+"\r\n",this.remoteDescription.sdp=a.join("")}}else this.transceivers.forEach(function(e){e.iceTransport.addRemoteCandidate({})});return arguments.length>1&&"function"==typeof arguments[1]&&window.setTimeout(arguments[1],0),Promise.resolve()},window.RTCPeerConnection.prototype.getStats=function(){var e=[];this.transceivers.forEach(function(t){["rtpSender","rtpReceiver","iceGatherer","iceTransport","dtlsTransport"].forEach(function(n){t[n]&&e.push(t[n].getStats())})});var t=arguments.length>1&&"function"==typeof arguments[1]&&arguments[1];return new Promise(function(n){var r=new Map;Promise.all(e).then(function(e){e.forEach(function(e){Object.keys(e).forEach(function(t){r.set(t,e[t]),r[t]=e[t]})}),t&&window.setTimeout(t,0,r),n(r)})})}}};e.exports={shimPeerConnection:i.shimPeerConnection,shimGetUserMedia:n(209)}},function(e,t,n){"use strict";e.exports=function(){var e=function(e){return{name:{PermissionDeniedError:"NotAllowedError"}[e.name]||e.name,message:e.message,constraint:e.constraint,toString:function(){return this.name}}},t=navigator.mediaDevices.getUserMedia.bind(navigator.mediaDevices);navigator.mediaDevices.getUserMedia=function(n){return t(n).catch(function(t){return Promise.reject(e(t))})}}},function(e,t,n){"use strict";var r=n(0).browserDetails,o={shimOnTrack:function(){"object"!=typeof window||!window.RTCPeerConnection||"ontrack"in window.RTCPeerConnection.prototype||Object.defineProperty(window.RTCPeerConnection.prototype,"ontrack",{get:function(){return this._ontrack},set:function(e){this._ontrack&&(this.removeEventListener("track",this._ontrack),this.removeEventListener("addstream",this._ontrackpoly)),this.addEventListener("track",this._ontrack=e),this.addEventListener("addstream",this._ontrackpoly=function(e){e.stream.getTracks().forEach(function(t){var n=new Event("track");n.track=t,n.receiver={track:t},n.streams=[e.stream],this.dispatchEvent(n)}.bind(this))}.bind(this))}})},shimSourceObject:function(){"object"==typeof window&&(!window.HTMLMediaElement||"srcObject"in window.HTMLMediaElement.prototype||Object.defineProperty(window.HTMLMediaElement.prototype,"srcObject",{get:function(){return this.mozSrcObject},set:function(e){this.mozSrcObject=e}}))},shimPeerConnection:function(){if("object"==typeof window&&(window.RTCPeerConnection||window.mozRTCPeerConnection)){window.RTCPeerConnection||(window.RTCPeerConnection=function(e,t){if(r.version<38&&e&&e.iceServers){for(var n=[],o=0;o<e.iceServers.length;o++){var i=e.iceServers[o];if(i.hasOwnProperty("urls"))for(var a=0;a<i.urls.length;a++){var c={url:i.urls[a]};0===i.urls[a].indexOf("turn")&&(c.username=i.username,c.credential=i.credential),n.push(c)}else n.push(e.iceServers[o])}e.iceServers=n}return new mozRTCPeerConnection(e,t)},window.RTCPeerConnection.prototype=mozRTCPeerConnection.prototype,mozRTCPeerConnection.generateCertificate&&Object.defineProperty(window.RTCPeerConnection,"generateCertificate",{get:function(){return mozRTCPeerConnection.generateCertificate}}),window.RTCSessionDescription=mozRTCSessionDescription,window.RTCIceCandidate=mozRTCIceCandidate),["setLocalDescription","setRemoteDescription","addIceCandidate"].forEach(function(e){var t=RTCPeerConnection.prototype[e];RTCPeerConnection.prototype[e]=function(){return arguments[0]=new("addIceCandidate"===e?RTCIceCandidate:RTCSessionDescription)(arguments[0]),t.apply(this,arguments)}});var e=RTCPeerConnection.prototype.addIceCandidate;if(RTCPeerConnection.prototype.addIceCandidate=function(){return arguments[0]?e.apply(this,arguments):(arguments[1]&&arguments[1].apply(null),Promise.resolve())},r.version<48){var t=function(e){var t=new Map;return Object.keys(e).forEach(function(n){t.set(n,e[n]),t[n]=e[n]}),t},n=RTCPeerConnection.prototype.getStats;RTCPeerConnection.prototype.getStats=function(e,r,o){return n.apply(this,[e||null]).then(function(e){return t(e)}).then(r,o)}}}}};e.exports={shimOnTrack:o.shimOnTrack,shimSourceObject:o.shimSourceObject,shimPeerConnection:o.shimPeerConnection,shimGetUserMedia:n(211)}},function(e,t,n){"use strict";var r=n(0).log,o=n(0).browserDetails;e.exports=function(){var e=function(e){return{name:{SecurityError:"NotAllowedError",PermissionDeniedError:"NotAllowedError"}[e.name]||e.name,message:{"The operation is insecure.":"The request is not allowed by the user agent or the platform in the current context."}[e.message]||e.message,constraint:e.constraint,toString:function(){return this.name+(this.message&&": ")+this.message}}},t=function(t,n,i){var a=function(e){if("object"!=typeof e||e.require)return e;var t=[];return Object.keys(e).forEach(function(n){if("require"!==n&&"advanced"!==n&&"mediaSource"!==n){var r=e[n]="object"==typeof e[n]?e[n]:{ideal:e[n]};if(void 0===r.min&&void 0===r.max&&void 0===r.exact||t.push(n),void 0!==r.exact&&("number"==typeof r.exact?r.min=r.max=r.exact:e[n]=r.exact,delete r.exact),void 0!==r.ideal){e.advanced=e.advanced||[];var o={};"number"==typeof r.ideal?o[n]={min:r.ideal,max:r.ideal}:o[n]=r.ideal,e.advanced.push(o),delete r.ideal,Object.keys(r).length||delete e[n]}}}),t.length&&(e.require=t),e};return t=JSON.parse(JSON.stringify(t)),o.version<38&&(r("spec: "+JSON.stringify(t)),t.audio&&(t.audio=a(t.audio)),t.video&&(t.video=a(t.video)),r("ff37: "+JSON.stringify(t))),navigator.mozGetUserMedia(t,n,function(t){i(e(t))})},n=function(e){return new Promise(function(n,r){t(e,n,r)})};if(navigator.mediaDevices||(navigator.mediaDevices={getUserMedia:n,addEventListener:function(){},removeEventListener:function(){}}),navigator.mediaDevices.enumerateDevices=navigator.mediaDevices.enumerateDevices||function(){return new Promise(function(e){var t=[{kind:"audioinput",deviceId:"default",label:"",groupId:""},{kind:"videoinput",deviceId:"default",label:"",groupId:""}];e(t)})},o.version<41){var i=navigator.mediaDevices.enumerateDevices.bind(navigator.mediaDevices);navigator.mediaDevices.enumerateDevices=function(){return i().then(void 0,function(e){if("NotFoundError"===e.name)return[];throw e})}}if(o.version<49){var a=navigator.mediaDevices.getUserMedia.bind(navigator.mediaDevices);navigator.mediaDevices.getUserMedia=function(t){return a(t).then(function(e){if(t.audio&&!e.getAudioTracks().length||t.video&&!e.getVideoTracks().length)throw e.getTracks().forEach(function(e){e.stop()}),new DOMException("The object can not be found here.","NotFoundError");return e},function(t){return Promise.reject(e(t))})}}navigator.getUserMedia=function(e,n,r){return o.version<44?t(e,n,r):(console.warn("navigator.getUserMedia has been replaced by navigator.mediaDevices.getUserMedia"),void navigator.mediaDevices.getUserMedia(e).then(n,r))}}},function(e,t,n){"use strict";var r={shimGetUserMedia:function(){navigator.getUserMedia=navigator.webkitGetUserMedia}};e.exports={shimGetUserMedia:r.shimGetUserMedia}},function(e,t,n){e.exports=n(71)}])});