instascan.min.js

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t.getTotalCodewords()-t.getECBlocksForLevel(r).getTotalECCodewords()>=(e+7)/8},e.terminateBits=function(e,t){var r=8*e;if(t.getSize()>r)throw new g.default("data bits cannot fit in the QR Code"+t.getSize()+" > "+r);for(var n=0;n<4&&t.getSize()<r;++n)t.appendBit(!1);var i=7&t.getSize();if(i>0)for(n=i;n<8;n++)t.appendBit(!1);var o=e-t.getSizeInBytes();for(n=0;n<o;++n)t.appendBits(0==(1&n)?236:17,8);if(t.getSize()!==r)throw new g.default("Bits size does not equal capacity")},e.getNumDataBytesAndNumECBytesForBlockID=function(e,t,r,n,i,o){if(n>=r)throw new g.default("Block ID too large");var a=e%r,s=r-a,u=Math.floor(e/r),c=u+1,f=Math.floor(t/r),l=f+1,d=u-f,h=c-l;if(d!==h)throw new g.default("EC bytes mismatch");if(r!==s+a)throw new g.default("RS blocks mismatch");if(e!==(f+d)*s+(l+h)*a)throw new g.default("Total bytes mismatch");n<s?(i[0]=f,o[0]=d):(i[0]=l,o[0]=h)},e.interleaveWithECBytes=function(t,r,n,o){if(t.getSizeInBytes()!==n)throw new g.default("Number of bits and data bytes does not 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l.default;var w=[new s.default(i[1],e),new s.default(u[0],e)];return new a.default(d,null,0,w,o.default.ITF,(new Date).getTime())},t.decodeMiddle=function(e,r,n,i){var o=new Array(10),a=new Array(5),s=new Array(5);for(o.fill(0),a.fill(0),s.fill(0);r<n;){u.default.recordPattern(e,r,o);for(var c=0;c<5;c++){var f=2*c;a[c]=o[f],s[c]=o[f+1]}var l=t.decodeDigit(a);i.append(l.toString()),l=this.decodeDigit(s),i.append(l.toString()),o.forEach(function(e){r+=e})}},t.prototype.decodeStart=function(e){var r=t.skipWhiteSpace(e),n=t.findGuardPattern(e,r,t.START_PATTERN);return this.narrowLineWidth=(n[1]-n[0])/4,this.validateQuietZone(e,n[0]),n},t.prototype.validateQuietZone=function(e,t){var r=10*this.narrowLineWidth;r=r<t?r:t;for(var n=t-1;r>0&&n>=0&&!e.get(n);n--)r--;if(0!==r)throw new d.default},t.skipWhiteSpace=function(e){var t=e.getSize(),r=e.getNextSet(0);if(r===t)throw new d.default;return r},t.prototype.decodeEnd=function(e){e.reverse();try{var r=t.skipWhiteSpace(e),n=void 0;try{n=t.findGuardPattern(e,r,t.END_PATTERN_REVERSED[0])}catch(i){n=t.findGuardPattern(e,r,t.END_PATTERN_REVERSED[1])}this.validateQuietZone(e,n[0]);var i=n[0];return n[0]=e.getSize()-n[1],n[1]=e.getSize()-i,n}finally{e.reverse()}},t.findGuardPattern=function(e,r,n){var i=n.length,o=new Array(i),a=e.getSize(),s=!1,c=0,l=r;o.fill(0);for(var h=r;h<a;h++)if(e.get(h)!==s)o[c]++;else{if(c===i-1){if(u.default.patternMatchVariance(o,n,t.MAX_INDIVIDUAL_VARIANCE)<t.MAX_AVG_VARIANCE)return[l,h];l+=o[0]+o[1],f.default.arraycopy(o,2,o,0,c-1),o[c-1]=0,o[c]=0,c--}else c++;o[c]=1,s=!s}throw new d.default},t.decodeDigit=function(e){for(var r=t.MAX_AVG_VARIANCE,n=-1,i=t.PATTERNS.length,o=0;o<i;o++){var a=t.PATTERNS[o],s=u.default.patternMatchVariance(e,a,t.MAX_INDIVIDUAL_VARIANCE);s<r?(r=s,n=o):s===r&&(n=-1)}if(n>=0)return n%10;throw new d.default},t.W=3,t.w=2,t.N=1,t.PATTERNS=[[1,1,2,2,1],[2,1,1,1,2],[1,2,1,1,2],[2,2,1,1,1],[1,1,2,1,2],[2,1,2,1,1],[1,2,2,1,1],[1,1,1,2,2],[2,1,1,2,1],[1,2,1,2,1],[1,1,3,3,1],[3,1,1,1,3],[1,3,1,1,3],[3,3,1,1,1],[1,1,3,1,3],[3,1,3,1,1],[1,3,3,1,1],[1,1,1,3,3],[3,1,1,3,1],[1,3,1,3,1]],t.MAX_AVG_VARIANCE=.38,t.MAX_INDIVIDUAL_VARIANCE=.5,t.DEFAULT_ALLOWED_LENGTHS=[6,8,10,12,14],t.START_PATTERN=[1,1,1,1],t.END_PATTERN_REVERSED=[[1,1,2],[1,1,3]],t}(u.default);t.default=h},function(e,t,r){"use strict";var n,i=this&&this.__extends||(n=Object.setPrototypeOf||{__proto__:[]}instanceof Array&&function(e,t){e.__proto__=t}||function(e,t){for(var r in t)t.hasOwnProperty(r)&&(e[r]=t[r])},function(e,t){function r(){this.constructor=e}n(e,t),e.prototype=null===t?Object.create(t):(r.prototype=t.prototype,new r)});Object.defineProperty(t,"__esModule",{value:!0});var o=r(2),a=r(8),s=r(3),u=r(9),c=r(0),f=r(4),l=r(11),d=function(e){function t(){return null!==e&&e.apply(this,arguments)||this}return i(t,e),t.findStartPattern=function(e){for(var r=e.getSize(),n=e.getNextSet(0),i=0,o=[0,0,0,0,0,0],a=n,s=!1,f=n;f<r;f++)if(e.get(f)!==s)o[i]++;else{if(5===i){for(var l=t.MAX_AVG_VARIANCE,d=-1,h=t.CODE_START_A;h<=t.CODE_START_C;h++){var p=u.default.patternMatchVariance(o,t.CODE_PATTERNS[h],t.MAX_INDIVIDUAL_VARIANCE);p<l&&(l=p,d=h)}if(d>=0&&e.isRange(Math.max(0,a-(f-a)/2),a,!1))return[a,f,d];a+=o[0]+o[1],o.splice(0,2),o[i-1]=0,o[i]=0,i--}else i++;o[i]=1,s=!s}throw new c.default},t.decodeCode=function(e,r,n){u.default.recordPattern(e,n,r);for(var i=t.MAX_AVG_VARIANCE,o=-1,a=0;a<t.CODE_PATTERNS.length;a++){var s=t.CODE_PATTERNS[a],f=this.patternMatchVariance(r,s,t.MAX_INDIVIDUAL_VARIANCE);f<i&&(i=f,o=a)}if(o>=0)return o;throw new c.default},t.prototype.decodeRow=function(e,r,n){var i,u=n&&!0===n.get(7),d=t.findStartPattern(r),h=d[2],p=0,v=new Uint8Array(20);switch(v[p++]=h,h){case t.CODE_START_A:i=t.CODE_CODE_A;break;case t.CODE_START_B:i=t.CODE_CODE_B;break;case t.CODE_START_C:i=t.CODE_CODE_C;break;default:throw new f.default}for(var g=!1,m=!1,y="",_=d[0],w=d[1],C=[0,0,0,0,0,0],E=0,S=0,b=h,T=0,A=!0,O=!1,I=!1;!g;){var R=m;switch(m=!1,E=S,S=t.decodeCode(r,C,w),v[p++]=S,S!==t.CODE_STOP&&(A=!0),S!==t.CODE_STOP&&(b+=++T*S),_=w,w+=C.reduce(function(e,t){return e+t},0),S){case t.CODE_START_A:case t.CODE_START_B:case t.CODE_START_C:throw new f.default}switch(i){case t.CODE_CODE_A:if(S<64)y+=I===O?String.fromCharCode(" ".charCodeAt(0)+S):String.fromCharCode(" ".charCodeAt(0)+S+128),I=!1;else if(S<96)y+=I===O?String.fromCharCode(S-64):String.fromCharCode(S+64),I=!1;else switch(S!==t.CODE_STOP&&(A=!1),S){case t.CODE_FNC_1:u&&(0===y.length?y+="]C1":y+=String.fromCharCode(29));break;case t.CODE_FNC_2:case t.CODE_FNC_3:break;case t.CODE_FNC_4_A:!O&&I?(O=!0,I=!1):O&&I?(O=!1,I=!1):I=!0;break;case t.CODE_SHIFT:m=!0,i=t.CODE_CODE_B;break;case t.CODE_CODE_B:i=t.CODE_CODE_B;break;case t.CODE_CODE_C:i=t.CODE_CODE_C;break;case t.CODE_STOP:g=!0}break;case t.CODE_CODE_B:if(S<96)y+=I===O?String.fromCharCode(" ".charCodeAt(0)+S):String.fromCharCode(" ".charCodeAt(0)+S+128),I=!1;else switch(S!==t.CODE_STOP&&(A=!1),S){case t.CODE_FNC_1:u&&(0===y.length?y+="]C1":y+=String.fromCharCode(29));break;case t.CODE_FNC_2:case t.CODE_FNC_3:break;case t.CODE_FNC_4_B:!O&&I?(O=!0,I=!1):O&&I?(O=!1,I=!1):I=!0;break;case t.CODE_SHIFT:m=!0,i=t.CODE_CODE_A;break;case t.CODE_CODE_A:i=t.CODE_CODE_A;break;case t.CODE_CODE_C:i=t.CODE_CODE_C;break;case t.CODE_STOP:g=!0}break;case t.CODE_CODE_C:if(S<100)S<10&&(y+="0"),y+=S;else switch(S!==t.CODE_STOP&&(A=!1),S){case t.CODE_FNC_1:u&&(0===y.length?y+="]C1":y+=String.fromCharCode(29));break;case t.CODE_CODE_A:i=t.CODE_CODE_A;break;case t.CODE_CODE_B:i=t.CODE_CODE_B;break;case t.CODE_STOP:g=!0}}R&&(i=i===t.CODE_CODE_A?t.CODE_CODE_B:t.CODE_CODE_A)}var P=w-_;if(w=r.getNextUnset(w),!r.isRange(w,Math.min(r.getSize(),w+(w-_)/2),!1))throw new c.default;if((b-=T*E)%103!==E)throw new l.default;var M=y.length;if(0===M)throw new c.default;M>0&&A&&(y=i===t.CODE_CODE_C?y.substring(0,M-2):y.substring(0,M-1));for(var N=(d[1]+d[0])/2,D=_+P/2,k=v.length,x=new Uint8Array(k),B=0;B<k;B++)x[B]=v[B];var L=[new s.default(N,e),new s.default(D,e)];return new a.default(y,x,0,L,o.default.CODE_128,(new Date).getTime())},t.CODE_PATTERNS=[[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]],t.MAX_AVG_VARIANCE=.25,t.MAX_INDIVIDUAL_VARIANCE=.7,t.CODE_SHIFT=98,t.CODE_CODE_C=99,t.CODE_CODE_B=100,t.CODE_CODE_A=101,t.CODE_FNC_1=102,t.CODE_FNC_2=97,t.CODE_FNC_3=96,t.CODE_FNC_4_A=101,t.CODE_FNC_4_B=100,t.CODE_START_A=103,t.CODE_START_B=104,t.CODE_START_C=105,t.CODE_STOP=106,t}(u.default);t.default=d},function(e,t,r){"use strict";var n,i=this&&this.__extends||(n=Object.setPrototypeOf||{__proto__:[]}instanceof Array&&function(e,t){e.__proto__=t}||function(e,t){for(var r in t)t.hasOwnProperty(r)&&(e[r]=t[r])},function(e,t){function r(){this.constructor=e}n(e,t),e.prototype=null===t?Object.create(t):(r.prototype=t.prototype,new r)});Object.defineProperty(t,"__esModule",{value:!0});var o=r(2),a=r(11),s=r(4),u=r(0),c=r(9),f=r(8),l=r(3),d=function(e){function t(t,r){void 0===t&&(t=!1),void 0===r&&(r=!1);var n=e.call(this)||this;return n.usingCheckDigit=t,n.extendedMode=r,n.decodeRowResult="",n.counters=new Array(9),n}return i(t,e),t.prototype.decodeRow=function(e,r,n){var i=this.counters;i.fill(0),this.decodeRowResult="";var s,c,d,h=t.findAsteriskPattern(r,i),p=r.getNextSet(h[1]),v=r.getSize();do{t.recordPattern(r,p,i);var g=t.toNarrowWidePattern(i);if(g<0)throw new u.default;s=t.patternToChar(g),this.decodeRowResult+=s,c=p;for(var m=0,y=i;m<y.length;m++)p+=y[m];p=r.getNextSet(p)}while("*"!==s);this.decodeRowResult=this.decodeRowResult.substring(0,this.decodeRowResult.length-1);for(var _=0,w=0,C=i;w<C.length;w++)_+=C[w];if(p!==v&&2*(p-c-_)<_)throw new u.default;if(this.usingCheckDigit){for(var E=this.decodeRowResult.length-1,S=0,b=0;b<E;b++)S+=t.ALPHABET_STRING.indexOf(this.decodeRowResult.charAt(b));if(this.decodeRowResult.charAt(E)!==t.ALPHABET_STRING.charAt(S%43))throw new a.default;this.decodeRowResult=this.decodeRowResult.substring(0,E)}if(0===this.decodeRowResult.length)throw new u.default;d=this.extendedMode?t.decodeExtended(this.decodeRowResult):this.decodeRowResult;var T=(h[1]+h[0])/2,A=c+_/2;return new f.default(d,null,0,[new l.default(T,e),new l.default(A,e)],o.default.CODE_39,(new Date).getTime())},t.findAsteriskPattern=function(e,r){for(var n=e.getSize(),i=e.getNextSet(0),o=0,a=i,s=!1,c=r.length,f=i;f<n;f++)if(e.get(f)!==s)r[o]++;else{if(o===c-1){if(this.toNarrowWidePattern(r)===t.ASTERISK_ENCODING&&e.isRange(Math.max(0,a-Math.floor((f-a)/2)),a,!1))return[a,f];a+=r[0]+r[1],r.copyWithin(0,2,2+o-1),r[o-1]=0,r[o]=0,o--}else o++;r[o]=1,s=!s}throw new u.default},t.toNarrowWidePattern=function(e){var t,r=e.length,n=0;do{for(var i=2147483647,o=0,a=e;o<a.length;o++)(f=a[o])<i&&f>n&&(i=f);n=i,t=0;for(var s=0,u=0,c=0;c<r;c++)(f=e[c])>n&&(u|=1<<r-1-c,t++,s+=f);if(3===t){for(c=0;c<r&&t>0;c++){var f;if((f=e[c])>n&&(t--,2*f>=s))return-1}return u}}while(t>3);return-1},t.patternToChar=function(e){for(var r=0;r<t.CHARACTER_ENCODINGS.length;r++)if(t.CHARACTER_ENCODINGS[r]===e)return t.ALPHABET_STRING.charAt(r);if(e===t.ASTERISK_ENCODING)return"*";throw new u.default},t.decodeExtended=function(e){for(var t=e.length,r="",n=0;n<t;n++){var i=e.charAt(n);if("+"===i||"$"===i||"%"===i||"/"===i){var 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u},t.BLOCK_SIZE_POWER=3,t.BLOCK_SIZE=1<<t.BLOCK_SIZE_POWER,t.BLOCK_SIZE_MASK=t.BLOCK_SIZE-1,t.MINIMUM_DIMENSION=5*t.BLOCK_SIZE,t.MIN_DYNAMIC_RANGE=24,t}(o.default);t.default=s},function(e,t,r){"use strict";Object.defineProperty(t,"__esModule",{value:!0});var n=r(1),i=function(){function e(e){if(this.binarizer=e,null===e)throw new n.default("Binarizer must be non-null.")}return e.prototype.getWidth=function(){return this.binarizer.getWidth()},e.prototype.getHeight=function(){return this.binarizer.getHeight()},e.prototype.getBlackRow=function(e,t){return this.binarizer.getBlackRow(e,t)},e.prototype.getBlackMatrix=function(){return null!==this.matrix&&void 0!==this.matrix||(this.matrix=this.binarizer.getBlackMatrix()),this.matrix},e.prototype.isCropSupported=function(){return this.binarizer.getLuminanceSource().isCropSupported()},e.prototype.crop=function(t,r,n,i){var o=this.binarizer.getLuminanceSource().crop(t,r,n,i);return new 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i.default(T,[b,v,E,A])},e.prototype.correctTopRightRectangular=function(t,r,i,o,a,s){var u=e.distance(t,r)/a,c=e.distance(i,o),f=(o.getX()-i.getX())/c,l=(o.getY()-i.getY())/c,d=new n.default(o.getX()+u*f,o.getY()+u*l);u=e.distance(t,i)/s,c=e.distance(r,o),f=(o.getX()-r.getX())/c,l=(o.getY()-r.getY())/c;var h=new n.default(o.getX()+u*f,o.getY()+u*l);return this.isValid(d)?this.isValid(h)?Math.abs(a-this.transitionsBetween(i,d).getTransitions())+Math.abs(s-this.transitionsBetween(r,d).getTransitions())<=Math.abs(a-this.transitionsBetween(i,h).getTransitions())+Math.abs(s-this.transitionsBetween(r,h).getTransitions())?d:h:d:this.isValid(h)?h:null},e.prototype.correctTopRight=function(t,r,i,o,a){var s=e.distance(t,r)/a,u=e.distance(i,o),c=(o.getX()-i.getX())/u,f=(o.getY()-i.getY())/u,l=new n.default(o.getX()+s*c,o.getY()+s*f);s=e.distance(t,i)/a,u=e.distance(r,o),c=(o.getX()-r.getX())/u,f=(o.getY()-r.getY())/u;var d=new n.default(o.getX()+s*c,o.getY()+s*f);return this.isValid(l)?this.isValid(d)?Math.abs(this.transitionsBetween(i,l).getTransitions()-this.transitionsBetween(r,l).getTransitions())<=Math.abs(this.transitionsBetween(i,d).getTransitions()-this.transitionsBetween(r,d).getTransitions())?l:d:l:this.isValid(d)?d:null},e.prototype.isValid=function(e){return e.getX()>=0&&e.getX()<this.image.getWidth()&&e.getY()>0&&e.getY()<this.image.getHeight()},e.distance=function(e,t){return a.default.round(n.default.distance(e,t))},e.increment=function(e,t){var r=e.get(t);e.set(t,null==r?1:r+1)},e.sampleGrid=function(e,t,r,n,i,a,s){return o.default.getInstance().sampleGrid(e,a,s,.5,.5,a-.5,.5,a-.5,s-.5,.5,s-.5,t.getX(),t.getY(),i.getX(),i.getY(),n.getX(),n.getY(),r.getX(),r.getY())},e.prototype.transitionsBetween=function(e,t){var r=0|e.getX(),n=0|e.getY(),i=0|t.getX(),o=0|t.getY(),a=Math.abs(o-n)>Math.abs(i-r);if(a){var s=r;r=n,n=s,s=i,i=o,o=s}for(var u=Math.abs(i-r),c=Math.abs(o-n),l=-u/2,d=n<o?1:-1,h=r<i?1:-1,p=0,v=this.image.get(a?n:r,a?r:n),g=r,m=n;g!==i;g+=h){var y=this.image.get(a?m:g,a?g:m);if(y!==v&&(p++,v=y),(l+=c)>0){if(m===o)break;m+=d,l-=u}}return new f(e,t,p)},e}();t.default=c;var f=function(){function e(e,t,r){this.from=e,this.to=t,this.transitions=r}return e.prototype.getFrom=function(){return this.from},e.prototype.getTo=function(){return this.to},e.prototype.getTransitions=function(){return this.transitions},e.prototype.toString=function(){return this.from+"/"+this.to+"/"+this.transitions},e.resultPointsAndTransitionsComparator=function(e,t){return e.getTransitions()-t.getTransitions()},e}()},function(e,t,r){"use strict";Object.defineProperty(t,"__esModule",{value:!0});var n,i=r(35),o=r(36),a=r(12),s=r(34),u=r(66),c=r(4),f=r(16);!function(e){e[e.PAD_ENCODE=0]="PAD_ENCODE",e[e.ASCII_ENCODE=1]="ASCII_ENCODE",e[e.C40_ENCODE=2]="C40_ENCODE",e[e.TEXT_ENCODE=3]="TEXT_ENCODE",e[e.ANSIX12_ENCODE=4]="ANSIX12_ENCODE",e[e.EDIFACT_ENCODE=5]="EDIFACT_ENCODE",e[e.BASE256_ENCODE=6]="BASE256_ENCODE"}(n||(n={}));var l=function(){function e(){}return e.decode=function(e){var t=new o.default(e),r=new a.default,s=new a.default,u=new Array,f=n.ASCII_ENCODE;do{if(f===n.ASCII_ENCODE)f=this.decodeAsciiSegment(t,r,s);else{switch(f){case n.C40_ENCODE:this.decodeC40Segment(t,r);break;case n.TEXT_ENCODE:this.decodeTextSegment(t,r);break;case n.ANSIX12_ENCODE:this.decodeAnsiX12Segment(t,r);break;case n.EDIFACT_ENCODE:this.decodeEdifactSegment(t,r);break;case n.BASE256_ENCODE:this.decodeBase256Segment(t,r,u);break;default:throw new c.default}f=n.ASCII_ENCODE}}while(f!==n.PAD_ENCODE&&t.available()>0);return s.length()>0&&r.append(s.toString()),new i.default(e,r.toString(),0===u.length?null:u,null)},e.decodeAsciiSegment=function(e,t,r){var i=!1;do{var o=e.readBits(8);if(0===o)throw new c.default;if(o<=128)return i&&(o+=128),t.append(String.fromCharCode(o-1)),n.ASCII_ENCODE;if(129===o)return n.PAD_ENCODE;if(o<=229){var a=o-130;a<10&&t.append("0"),t.append(""+a)}else switch(o){case 230:return n.C40_ENCODE;case 231:return n.BASE256_ENCODE;case 232:t.append(String.fromCharCode(29));break;case 233:case 234:break;case 235:i=!0;break;case 236:t.append("[)>05"),r.insert(0,"");break;case 237:t.append("[)>06"),r.insert(0,"");break;case 238:return n.ANSIX12_ENCODE;case 239:return n.TEXT_ENCODE;case 240:return n.EDIFACT_ENCODE;case 241:break;default:if(254!==o||0!==e.available())throw new c.default}}while(e.available()>0);return n.ASCII_ENCODE},e.decodeC40Segment=function(e,t){var r=!1,n=[],i=0;do{if(8===e.available())return;var o=e.readBits(8);if(254===o)return;this.parseTwoBytes(o,e.readBits(8),n);for(var a=0;a<3;a++){var s=n[a];switch(i){case 0:if(s<3)i=s+1;else{if(!(s<this.C40_BASIC_SET_CHARS.length))throw new c.default;var u=this.C40_BASIC_SET_CHARS[s];r?(t.append(String.fromCharCode(u.charCodeAt(0)+128)),r=!1):t.append(u)}break;case 1:r?(t.append(String.fromCharCode(s+128)),r=!1):t.append(String.fromCharCode(s)),i=0;break;case 2:if(s<this.C40_SHIFT2_SET_CHARS.length)u=this.C40_SHIFT2_SET_CHARS[s],r?(t.append(String.fromCharCode(u.charCodeAt(0)+128)),r=!1):t.append(u);else switch(s){case 27:t.append(String.fromCharCode(29));break;case 30:r=!0;break;default:throw new c.default}i=0;break;case 3:r?(t.append(String.fromCharCode(s+224)),r=!1):t.append(String.fromCharCode(s+96)),i=0;break;default:throw new c.default}}}while(e.available()>0)},e.decodeTextSegment=function(e,t){var r=!1,n=[],i=0;do{if(8===e.available())return;var o=e.readBits(8);if(254===o)return;this.parseTwoBytes(o,e.readBits(8),n);for(var a=0;a<3;a++){var s=n[a];switch(i){case 0:if(s<3)i=s+1;else{if(!(s<this.TEXT_BASIC_SET_CHARS.length))throw new c.default;var u=this.TEXT_BASIC_SET_CHARS[s];r?(t.append(String.fromCharCode(u.charCodeAt(0)+128)),r=!1):t.append(u)}break;case 1:r?(t.append(String.fromCharCode(s+128)),r=!1):t.append(String.fromCharCode(s)),i=0;break;case 2:if(s<this.TEXT_SHIFT2_SET_CHARS.length)u=this.TEXT_SHIFT2_SET_CHARS[s],r?(t.append(String.fromCharCode(u.charCodeAt(0)+128)),r=!1):t.append(u);else switch(s){case 27:t.append(String.fromCharCode(29));break;case 30:r=!0;break;default:throw new c.default}i=0;break;case 3:if(!(s<this.TEXT_SHIFT3_SET_CHARS.length))throw new c.default;u=this.TEXT_SHIFT3_SET_CHARS[s],r?(t.append(String.fromCharCode(u.charCodeAt(0)+128)),r=!1):t.append(u),i=0;break;default:throw new c.default}}}while(e.available()>0)},e.decodeAnsiX12Segment=function(e,t){var r=[];do{if(8===e.available())return;var n=e.readBits(8);if(254===n)return;this.parseTwoBytes(n,e.readBits(8),r);for(var i=0;i<3;i++){var o=r[i];switch(o){case 0:t.append("\r");break;case 1:t.append("*");break;case 2:t.append(">");break;case 3:t.append(" ");break;default:if(o<14)t.append(String.fromCharCode(o+44));else{if(!(o<40))throw new c.default;t.append(String.fromCharCode(o+51))}}}}while(e.available()>0)},e.parseTwoBytes=function(e,t,r){var n=(e<<8)+t-1,i=Math.floor(n/1600);r[0]=i,n-=1600*i,i=Math.floor(n/40),r[1]=i,r[2]=n-40*i},e.decodeEdifactSegment=function(e,t){do{if(e.available()<=16)return;for(var r=0;r<4;r++){var n=e.readBits(6);if(31===n){var i=8-e.getBitOffset();return void(8!==i&&e.readBits(i))}0==(32&n)&&(n|=64),t.append(String.fromCharCode(n))}}while(e.available()>0)},e.decodeBase256Segment=function(e,t,r){var n,i=1+e.getByteOffset(),o=this.unrandomize255State(e.readBits(8),i++);if((n=0===o?e.available()/8|0:o<250?o:250*(o-249)+this.unrandomize255State(e.readBits(8),i++))<0)throw new c.default;for(var a=new Uint8Array(n),l=0;l<n;l++){if(e.available()<8)throw new c.default;a[l]=this.unrandomize255State(e.readBits(8),i++)}r.push(a);try{t.append(s.default.decode(a,u.StringUtils.ISO88591))}catch(e){throw new f.default("Platform does not support required encoding: "+e.message)}},e.unrandomize255State=function(e,t){var r=e-(149*t%255+1);return r>=0?r:r+256},e.C40_BASIC_SET_CHARS=["*","*","*"," ","0","1","2","3","4","5","6","7","8","9","A","B","C","D","E","F","G","H","I","J","K","L","M","N","O","P","Q","R","S","T","U","V","W","X","Y","Z"],e.C40_SHIFT2_SET_CHARS=["!",'"',"#","$","%","&","'","(",")","*","+",",","-",".","/",":",";","<","=",">","?","@","[","\\","]","^","_"],e.TEXT_BASIC_SET_CHARS=["*","*","*"," 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C=24===r.getVersionNumber(),E=C?8:f;for(w=0;w<E;w++)c[w].codewords[m-1]=t[_++];var S=c[0].codewords.length;for(p=m;p<S;p++)for(w=0;w<f;w++){var b=C?(w+8)%f:w,T=C&&b>7?p-1:p;c[b].codewords[T]=t[_++]}if(_!==t.length)throw new n.default;return c},e.prototype.getNumDataCodewords=function(){return this.numDataCodewords},e.prototype.getCodewords=function(){return this.codewords},e}();t.default=i},function(e,t,r){"use strict";Object.defineProperty(t,"__esModule",{value:!0});var n=r(4),i=function(){function e(e,t,r){this.ecCodewords=e,this.ecBlocks=[t],r&&this.ecBlocks.push(r)}return e.prototype.getECCodewords=function(){return this.ecCodewords},e.prototype.getECBlocks=function(){return this.ecBlocks},e}();t.ECBlocks=i;var o=function(){function e(e,t){this.count=e,this.dataCodewords=t}return e.prototype.getCount=function(){return this.count},e.prototype.getDataCodewords=function(){return this.dataCodewords},e}();t.ECB=o;var a=function(){function 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t=e.getHeight(),r=e.getWidth();return i.default.getVersionForDimensions(t,r)},e.prototype.readCodewords=function(){var e=new Int8Array(this.version.getTotalCodewords()),t=0,r=4,n=0,i=this.mappingBitMatrix.getHeight(),a=this.mappingBitMatrix.getWidth(),s=!1,u=!1,c=!1,f=!1;do{if(r!==i||0!==n||s)if(r!==i-2||0!==n||0==(3&a)||u)if(r!==i+4||2!==n||0!=(7&a)||c)if(r!==i-2||0!==n||4!=(7&a)||f){do{r<i&&n>=0&&!this.readMappingMatrix.get(n,r)&&(e[t++]=255&this.readUtah(r,n,i,a)),r-=2,n+=2}while(r>=0&&n<a);r+=1,n+=3;do{r>=0&&n<a&&!this.readMappingMatrix.get(n,r)&&(e[t++]=255&this.readUtah(r,n,i,a)),r+=2,n-=2}while(r<i&&n>=0);r+=3,n+=1}else e[t++]=255&this.readCorner4(i,a),r-=2,n+=2,f=!0;else e[t++]=255&this.readCorner3(i,a),r-=2,n+=2,c=!0;else e[t++]=255&this.readCorner2(i,a),r-=2,n+=2,u=!0;else e[t++]=255&this.readCorner1(i,a),r-=2,n+=2,s=!0}while(r<i||n<a);if(t!==this.version.getTotalCodewords())throw new o.default;return e},e.prototype.readModule=function(e,t,r,n){return 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this.readModule(e-3,0,e,t)&&(r|=1),r<<=1,this.readModule(e-2,0,e,t)&&(r|=1),r<<=1,this.readModule(e-1,0,e,t)&&(r|=1),r<<=1,this.readModule(0,t-4,e,t)&&(r|=1),r<<=1,this.readModule(0,t-3,e,t)&&(r|=1),r<<=1,this.readModule(0,t-2,e,t)&&(r|=1),r<<=1,this.readModule(0,t-1,e,t)&&(r|=1),r<<=1,this.readModule(1,t-1,e,t)&&(r|=1),r},e.prototype.readCorner3=function(e,t){var r=0;return this.readModule(e-1,0,e,t)&&(r|=1),r<<=1,this.readModule(e-1,t-1,e,t)&&(r|=1),r<<=1,this.readModule(0,t-3,e,t)&&(r|=1),r<<=1,this.readModule(0,t-2,e,t)&&(r|=1),r<<=1,this.readModule(0,t-1,e,t)&&(r|=1),r<<=1,this.readModule(1,t-3,e,t)&&(r|=1),r<<=1,this.readModule(1,t-2,e,t)&&(r|=1),r<<=1,this.readModule(1,t-1,e,t)&&(r|=1),r},e.prototype.readCorner4=function(e,t){var r=0;return this.readModule(e-3,0,e,t)&&(r|=1),r<<=1,this.readModule(e-2,0,e,t)&&(r|=1),r<<=1,this.readModule(e-1,0,e,t)&&(r|=1),r<<=1,this.readModule(0,t-2,e,t)&&(r|=1),r<<=1,this.readModule(0,t-1,e,t)&&(r|=1),r<<=1,this.readModule(1,t-1,e,t)&&(r|=1),r<<=1,this.readModule(2,t-1,e,t)&&(r|=1),r<<=1,this.readModule(3,t-1,e,t)&&(r|=1),r},e.prototype.extractDataRegion=function(e){var t=this.version.getSymbolSizeRows(),r=this.version.getSymbolSizeColumns();if(e.getHeight()!==t)throw new a.default("Dimension of bitMatrix must match the version size");for(var i=this.version.getDataRegionSizeRows(),o=this.version.getDataRegionSizeColumns(),s=t/i|0,u=r/o|0,c=s*i,f=u*o,l=new n.default(f,c),d=0;d<s;++d)for(var h=d*i,p=0;p<u;++p)for(var v=p*o,g=0;g<i;++g)for(var m=d*(i+2)+1+g,y=h+g,_=0;_<o;++_){var w=p*(o+2)+1+_;if(e.get(w,m)){var C=v+_;l.set(C,y)}}return l},e}();t.default=s},function(e,t,r){"use strict";Object.defineProperty(t,"__esModule",{value:!0});var n=r(38),i=r(13),o=r(85),a=r(83),s=r(82),u=r(11),c=function(){function e(){this.rsDecoder=new n.default(i.default.DATA_MATRIX_FIELD_256)}return e.prototype.decode=function(e){for(var t=new o.default(e),r=t.getVersion(),n=t.readCodewords(),i=a.default.getDataBlocks(n,r),u=0,c=0,f=i;c<f.length;c++)u+=f[c].getNumDataCodewords();for(var l=new Uint8Array(u),d=i.length,h=0;h<d;h++){var p=i[h],v=p.getCodewords(),g=p.getNumDataCodewords();this.correctErrors(v,g);for(var m=0;m<g;m++)l[m*d+h]=v[m]}return s.default.decode(l)},e.prototype.correctErrors=function(e,t){e.length;var r=new Int32Array(e);try{this.rsDecoder.decode(r,e.length-t)}catch(e){throw new u.default}for(var n=0;n<t;n++)e[n]=r[n]},e}();t.default=c},function(e,t,r){"use strict";var n,i=this&&this.__extends||(n=Object.setPrototypeOf||{__proto__:[]}instanceof Array&&function(e,t){e.__proto__=t}||function(e,t){for(var r in t)t.hasOwnProperty(r)&&(e[r]=t[r])},function(e,t){function r(){this.constructor=e}n(e,t),e.prototype=null===t?Object.create(t):(r.prototype=t.prototype,new r)});Object.defineProperty(t,"__esModule",{value:!0});var o=r(25),a=r(30),s=function(e){function t(t){return void 0===t&&(t=500),e.call(this,new a.default,t)||this}return i(t,e),t}(o.BrowserCodeReader);t.BrowserDatamatrixCodeReader=s},function(e,t,r){"use strict";var n,i=this&&this.__extends||(n=Object.setPrototypeOf||{__proto__:[]}instanceof Array&&function(e,t){e.__proto__=t}||function(e,t){for(var r in t)t.hasOwnProperty(r)&&(e[r]=t[r])},function(e,t){function r(){this.constructor=e}n(e,t),e.prototype=null===t?Object.create(t):(r.prototype=t.prototype,new r)});Object.defineProperty(t,"__esModule",{value:!0});var o=function(e){function t(t,r,n){var i=e.call(this,t,r)||this;return i.estimatedModuleSize=n,i}return i(t,e),t.prototype.aboutEquals=function(e,t,r){if(Math.abs(t-this.getY())<=e&&Math.abs(r-this.getX())<=e){var n=Math.abs(e-this.estimatedModuleSize);return n<=1||n<=this.estimatedModuleSize}return!1},t.prototype.combineEstimate=function(e,r,n){return new t((this.getX()+r)/2,(this.getY()+e)/2,(this.estimatedModuleSize+n)/2)},t}(r(3).default);t.default=o},function(e,t,r){"use strict";Object.defineProperty(t,"__esModule",{value:!0});var n=r(88),i=r(0),o=function(){function e(e,t,r,n,i,o,a){this.image=e,this.startX=t,this.startY=r,this.width=n,this.height=i,this.moduleSize=o,this.resultPointCallback=a,this.possibleCenters=[],this.crossCheckStateCount=new Int32Array(3)}return e.prototype.find=function(){for(var e=this.startX,t=this.height,r=e+this.width,n=this.startY+t/2,o=new Int32Array(3),a=this.image,s=0;s<t;s++){var u=n+(0==(1&s)?Math.floor((s+1)/2):-Math.floor((s+1)/2));o[0]=0,o[1]=0,o[2]=0;for(var c=e;c<r&&!a.get(c,u);)c++;for(var f=0;c<r;){if(a.get(c,u))if(1===f)o[1]++;else if(2===f){var l;if(this.foundPatternCross(o)&&null!==(l=this.handlePossibleCenter(o,u,c)))return l;o[0]=o[2],o[1]=1,o[2]=0,f=1}else o[++f]++;else 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o=t[0]+t[1]+t[2],a=e.centerFromEnd(t,i),s=this.crossCheckVertical(r,a,2*t[1],o);if(!isNaN(s)){for(var u=(t[0]+t[1]+t[2])/3,c=0,f=this.possibleCenters;c<f.length;c++){var l=f[c];if(l.aboutEquals(u,s,a))return l.combineEstimate(s,a,u)}var d=new n.default(a,s,u);this.possibleCenters.push(d),null!==this.resultPointCallback&&void 0!==this.resultPointCallback&&this.resultPointCallback.foundPossibleResultPoint(d)}return null},e}();t.default=o},function(e,t,r){"use strict";Object.defineProperty(t,"__esModule",{value:!0});var n=function(){function e(e){this.bottomLeft=e[0],this.topLeft=e[1],this.topRight=e[2]}return e.prototype.getBottomLeft=function(){return this.bottomLeft},e.prototype.getTopLeft=function(){return this.topLeft},e.prototype.getTopRight=function(){return this.topRight},e}();t.default=n},function(e,t,r){"use strict";var n,i=this&&this.__extends||(n=Object.setPrototypeOf||{__proto__:[]}instanceof Array&&function(e,t){e.__proto__=t}||function(e,t){for(var r in t)t.hasOwnProperty(r)&&(e[r]=t[r])},function(e,t){function r(){this.constructor=e}n(e,t),e.prototype=null===t?Object.create(t):(r.prototype=t.prototype,new r)});Object.defineProperty(t,"__esModule",{value:!0});var o=function(e){function t(t,r,n,i){var o=e.call(this,t,r)||this;return o.estimatedModuleSize=n,o.count=i,void 0===i&&(o.count=1),o}return i(t,e),t.prototype.getEstimatedModuleSize=function(){return this.estimatedModuleSize},t.prototype.getCount=function(){return this.count},t.prototype.aboutEquals=function(e,t,r){if(Math.abs(t-this.getY())<=e&&Math.abs(r-this.getX())<=e){var n=Math.abs(e-this.estimatedModuleSize);return n<=1||n<=this.estimatedModuleSize}return!1},t.prototype.combineEstimate=function(e,r,n){var i=this.count+1;return new t((this.count*this.getX()+r)/i,(this.count*this.getY()+e)/i,(this.count*this.estimatedModuleSize+n)/i,i)},t}(r(3).default);t.default=o},function(e,t,r){"use strict";Object.defineProperty(t,"__esModule",{value:!0});var n=r(3),i=r(91),o=r(90),a=r(0),s=function(){function e(e,t){this.image=e,this.resultPointCallback=t,this.possibleCenters=[],this.crossCheckStateCount=new Int32Array(5),this.resultPointCallback=t}return e.prototype.getImage=function(){return this.image},e.prototype.getPossibleCenters=function(){return this.possibleCenters},e.prototype.find=function(t){var r=null!=t&&void 0!==t.get(3),i=null!=t&&void 0!==t.get(1),a=this.image,s=a.getHeight(),u=a.getWidth(),c=Math.floor(3*s/(4*e.MAX_MODULES));(c<e.MIN_SKIP||r)&&(c=e.MIN_SKIP);for(var f=!1,l=new Int32Array(5),d=c-1;d<s&&!f;d+=c){l[0]=0,l[1]=0,l[2]=0,l[3]=0,l[4]=0;for(var h=0,p=0;p<u;p++)if(a.get(p,d))1==(1&h)&&h++,l[h]++;else if(0==(1&h))if(4===h)if(e.foundPatternCross(l)){if(!0!==this.handlePossibleCenter(l,d,p,i)){l[0]=l[2],l[1]=l[3],l[2]=l[4],l[3]=1,l[4]=0,h=3;continue}if(c=2,!0===this.hasSkipped)f=this.haveMultiplyConfirmedCenters();else{var v=this.findRowSkip();v>l[2]&&(d+=v-l[2]-c,p=u-1)}h=0,l[0]=0,l[1]=0,l[2]=0,l[3]=0,l[4]=0}else l[0]=l[2],l[1]=l[3],l[2]=l[4],l[3]=1,l[4]=0,h=3;else l[++h]++;else l[h]++;e.foundPatternCross(l)&&!0===this.handlePossibleCenter(l,d,u,i)&&(c=l[0],this.hasSkipped&&(f=this.haveMultiplyConfirmedCenters()))}var g=this.selectBestPatterns();return n.default.orderBestPatterns(g),new o.default(g)},e.centerFromEnd=function(e,t){return t-e[4]-e[3]-e[2]/2},e.foundPatternCross=function(e){for(var t=0,r=0;r<5;r++){var n=e[r];if(0===n)return!1;t+=n}if(t<7)return!1;var i=t/7,o=i/2;return Math.abs(i-e[0])<o&&Math.abs(i-e[1])<o&&Math.abs(3*i-e[2])<3*o&&Math.abs(i-e[3])<o&&Math.abs(i-e[4])<o},e.prototype.getCrossCheckStateCount=function(){var e=this.crossCheckStateCount;return e[0]=0,e[1]=0,e[2]=0,e[3]=0,e[4]=0,e},e.prototype.crossCheckDiagonal=function(t,r,n,i){for(var o=this.getCrossCheckStateCount(),a=0,s=this.image;t>=a&&r>=a&&s.get(r-a,t-a);)o[2]++,a++;if(t<a||r<a)return!1;for(;t>=a&&r>=a&&!s.get(r-a,t-a)&&o[1]<=n;)o[1]++,a++;if(t<a||r<a||o[1]>n)return!1;for(;t>=a&&r>=a&&s.get(r-a,t-a)&&o[0]<=n;)o[0]++,a++;if(o[0]>n)return!1;var u=s.getHeight(),c=s.getWidth();for(a=1;t+a<u&&r+a<c&&s.get(r+a,t+a);)o[2]++,a++;if(t+a>=u||r+a>=c)return!1;for(;t+a<u&&r+a<c&&!s.get(r+a,t+a)&&o[3]<n;)o[3]++,a++;if(t+a>=u||r+a>=c||o[3]>=n)return!1;for(;t+a<u&&r+a<c&&s.get(r+a,t+a)&&o[4]<n;)o[4]++,a++;if(o[4]>=n)return!1;var f=o[0]+o[1]+o[2]+o[3]+o[4];return Math.abs(f-i)<2*i&&e.foundPatternCross(o)},e.prototype.crossCheckVertical=function(t,r,n,i){for(var o=this.image,a=o.getHeight(),s=this.getCrossCheckStateCount(),u=t;u>=0&&o.get(r,u);)s[2]++,u--;if(u<0)return NaN;for(;u>=0&&!o.get(r,u)&&s[1]<=n;)s[1]++,u--;if(u<0||s[1]>n)return NaN;for(;u>=0&&o.get(r,u)&&s[0]<=n;)s[0]++,u--;if(s[0]>n)return NaN;for(u=t+1;u<a&&o.get(r,u);)s[2]++,u++;if(u===a)return NaN;for(;u<a&&!o.get(r,u)&&s[3]<n;)s[3]++,u++;if(u===a||s[3]>=n)return NaN;for(;u<a&&o.get(r,u)&&s[4]<n;)s[4]++,u++;if(s[4]>=n)return NaN;var c=s[0]+s[1]+s[2]+s[3]+s[4];return 5*Math.abs(c-i)>=2*i?NaN:e.foundPatternCross(s)?e.centerFromEnd(s,u):NaN},e.prototype.crossCheckHorizontal=function(t,r,n,i){for(var o=this.image,a=o.getWidth(),s=this.getCrossCheckStateCount(),u=t;u>=0&&o.get(u,r);)s[2]++,u--;if(u<0)return NaN;for(;u>=0&&!o.get(u,r)&&s[1]<=n;)s[1]++,u--;if(u<0||s[1]>n)return NaN;for(;u>=0&&o.get(u,r)&&s[0]<=n;)s[0]++,u--;if(s[0]>n)return NaN;for(u=t+1;u<a&&o.get(u,r);)s[2]++,u++;if(u===a)return NaN;for(;u<a&&!o.get(u,r)&&s[3]<n;)s[3]++,u++;if(u===a||s[3]>=n)return NaN;for(;u<a&&o.get(u,r)&&s[4]<n;)s[4]++,u++;if(s[4]>=n)return NaN;var c=s[0]+s[1]+s[2]+s[3]+s[4];return 5*Math.abs(c-i)>=i?NaN:e.foundPatternCross(s)?e.centerFromEnd(s,u):NaN},e.prototype.handlePossibleCenter=function(t,r,n,o){var a=t[0]+t[1]+t[2]+t[3]+t[4],s=e.centerFromEnd(t,n),u=this.crossCheckVertical(r,Math.floor(s),t[2],a);if(!isNaN(u)&&(s=this.crossCheckHorizontal(Math.floor(s),Math.floor(u),t[2],a),!isNaN(s)&&(!o||this.crossCheckDiagonal(Math.floor(u),Math.floor(s),t[2],a)))){for(var c=a/7,f=!1,l=this.possibleCenters,d=0,h=l.length;d<h;d++){var p=l[d];if(p.aboutEquals(c,u,s)){l[d]=p.combineEstimate(u,s,c),f=!0;break}}if(!f){var v=new i.default(s,u,c);l.push(v),null!==this.resultPointCallback&&void 0!==this.resultPointCallback&&this.resultPointCallback.foundPossibleResultPoint(v)}return!0}return!1},e.prototype.findRowSkip=function(){if(this.possibleCenters.length<=1)return 0;for(var t=null,r=0,n=this.possibleCenters;r<n.length;r++){var i=n[r];if(i.getCount()>=e.CENTER_QUORUM){if(null!=t)return this.hasSkipped=!0,Math.floor((Math.abs(t.getX()-i.getX())-Math.abs(t.getY()-i.getY()))/2);t=i}}return 0},e.prototype.haveMultiplyConfirmedCenters=function(){for(var t=0,r=0,n=this.possibleCenters.length,i=0,o=this.possibleCenters;i<o.length;i++)(f=o[i]).getCount()>=e.CENTER_QUORUM&&(t++,r+=f.getEstimatedModuleSize());if(t<3)return!1;for(var a=r/n,s=0,u=0,c=this.possibleCenters;u<c.length;u++){var f=c[u];s+=Math.abs(f.getEstimatedModuleSize()-a)}return s<=.05*r},e.prototype.selectBestPatterns=function(){var e=this.possibleCenters.length;if(e<3)throw new a.default;var t,r=this.possibleCenters;if(e>3){for(var n=0,i=0,o=0,s=this.possibleCenters;o<s.length;o++){var u=s[o].getEstimatedModuleSize();n+=u,i+=u*u}t=n/e;var c=Math.sqrt(i/e-t*t);r.sort(function(e,r){var n=Math.abs(r.getEstimatedModuleSize()-t),i=Math.abs(e.getEstimatedModuleSize()-t);return n<i?-1:n>i?1:0});for(var f=Math.max(.2*t,c),l=0;l<r.length&&r.length>3;l++){var d=r[l];Math.abs(d.getEstimatedModuleSize()-t)>f&&(r.splice(l,1),l--)}}if(r.length>3){n=0;for(var h=0,p=r;h<p.length;h++)n+=p[h].getEstimatedModuleSize();t=n/r.length,r.sort(function(e,r){if(r.getCount()===e.getCount()){var n=Math.abs(r.getEstimatedModuleSize()-t),i=Math.abs(e.getEstimatedModuleSize()-t);return n<i?1:n>i?-1:0}return r.getCount()-e.getCount()}),r.splice(3)}return[r[0],r[1],r[2]]},e.CENTER_QUORUM=2,e.MIN_SKIP=3,e.MAX_MODULES=57,e}();t.default=s},function(e,t,r){"use strict";Object.defineProperty(t,"__esModule",{value:!0});var n=r(3),i=r(33),o=r(32),a=r(31),s=r(17),u=r(37),c=r(92),f=r(89),l=r(0),d=function(){function e(e){this.image=e}return e.prototype.getImage=function(){return this.image},e.prototype.getResultPointCallback=function(){return this.resultPointCallback},e.prototype.detect=function(e){this.resultPointCallback=null==e?null:e.get(9);var t=new c.default(this.image,this.resultPointCallback).find(e);return this.processFinderPatternInfo(t)},e.prototype.processFinderPatternInfo=function(t){var r=t.getTopLeft(),n=t.getTopRight(),o=t.getBottomLeft(),a=this.calculateModuleSize(r,n,o);if(a<1)throw new l.default("No pattern found in proccess finder.");var s=e.computeDimension(r,n,o,a),c=u.default.getProvisionalVersionForDimension(s),f=c.getDimensionForVersion()-7,d=null;if(c.getAlignmentPatternCenters().length>0)for(var h=n.getX()-r.getX()+o.getX(),p=n.getY()-r.getY()+o.getY(),v=1-3/f,g=Math.floor(r.getX()+v*(h-r.getX())),m=Math.floor(r.getY()+v*(p-r.getY())),y=4;y<=16;y<<=1)try{d=this.findAlignmentInRegion(a,g,m,y);break}catch(e){if(!(e instanceof l.default))throw e}var _,w=e.createTransform(r,n,o,d,s),C=e.sampleGrid(this.image,w,s);return _=null===d?[o,r,n]:[o,r,n,d],new i.default(C,_)},e.createTransform=function(e,t,r,n,i){var o,s,u,c,f=i-3.5;return null!==n?(o=n.getX(),s=n.getY(),c=u=f-3):(o=t.getX()-e.getX()+r.getX(),s=t.getY()-e.getY()+r.getY(),u=f,c=f),a.default.quadrilateralToQuadrilateral(3.5,3.5,f,3.5,u,c,3.5,f,e.getX(),e.getY(),t.getX(),t.getY(),o,s,r.getX(),r.getY())},e.sampleGrid=function(e,t,r){return o.default.getInstance().sampleGridWithTransform(e,r,r,t)},e.computeDimension=function(e,t,r,i){var o=s.default.round(n.default.distance(e,t)/i),a=s.default.round(n.default.distance(e,r)/i),u=Math.floor((o+a)/2)+7;switch(3&u){case 0:u++;break;case 2:u--;break;case 3:throw new l.default("Dimensions could be not found.")}return u},e.prototype.calculateModuleSize=function(e,t,r){return(this.calculateModuleSizeOneWay(e,t)+this.calculateModuleSizeOneWay(e,r))/2},e.prototype.calculateModuleSizeOneWay=function(e,t){var r=this.sizeOfBlackWhiteBlackRunBothWays(Math.floor(e.getX()),Math.floor(e.getY()),Math.floor(t.getX()),Math.floor(t.getY())),n=this.sizeOfBlackWhiteBlackRunBothWays(Math.floor(t.getX()),Math.floor(t.getY()),Math.floor(e.getX()),Math.floor(e.getY()));return isNaN(r)?n/7:isNaN(n)?r/7:(r+n)/14},e.prototype.sizeOfBlackWhiteBlackRunBothWays=function(e,t,r,n){var i=this.sizeOfBlackWhiteBlackRun(e,t,r,n),o=1,a=e-(r-e);a<0?(o=e/(e-a),a=0):a>=this.image.getWidth()&&(o=(this.image.getWidth()-1-e)/(a-e),a=this.image.getWidth()-1);var s=Math.floor(t-(n-t)*o);return o=1,s<0?(o=t/(t-s),s=0):s>=this.image.getHeight()&&(o=(this.image.getHeight()-1-t)/(s-t),s=this.image.getHeight()-1),a=Math.floor(e+(a-e)*o),(i+=this.sizeOfBlackWhiteBlackRun(e,t,a,s))-1},e.prototype.sizeOfBlackWhiteBlackRun=function(e,t,r,n){var i=Math.abs(n-t)>Math.abs(r-e);if(i){var o=e;e=t,t=o,o=r,r=n,n=o}for(var a=Math.abs(r-e),u=Math.abs(n-t),c=-a/2,f=e<r?1:-1,l=t<n?1:-1,d=0,h=r+f,p=e,v=t;p!==h;p+=f){var g=i?v:p,m=i?p:v;if(1===d===this.image.get(g,m)){if(2===d)return s.default.distance(p,v,e,t);d++}if((c+=u)>0){if(v===n)break;v+=l,c-=a}}return 2===d?s.default.distance(r+f,n,e,t):NaN},e.prototype.findAlignmentInRegion=function(e,t,r,n){var i=Math.floor(n*e),o=Math.max(0,t-i),a=Math.min(this.image.getWidth()-1,t+i);if(a-o<3*e)throw new l.default("Alignment top exceeds estimated module size.");var s=Math.max(0,r-i),u=Math.min(this.image.getHeight()-1,r+i);if(u-s<3*e)throw new l.default("Alignment bottom exceeds estimated module size.");return new f.default(this.image,o,s,a-o,u-s,e,this.resultPointCallback).find()},e}();t.default=d},function(e,t,r){"use strict";Object.defineProperty(t,"__esModule",{value:!0});var n=r(36),i=r(15),o=r(35),a=r(55),s=r(54),u=r(12),c=r(34),f=r(4),l=function(){function e(){}return e.decode=function(t,r,a,c){var l=new n.default(t),d=new u.default,h=new Array,p=-1,v=-1;try{var g=null,m=!1,y=void 0;do{if(l.available()<4)y=s.default.TERMINATOR;else{var _=l.readBits(4);y=s.default.forBits(_)}switch(y){case s.default.TERMINATOR:break;case s.default.FNC1_FIRST_POSITION:case s.default.FNC1_SECOND_POSITION:m=!0;break;case s.default.STRUCTURED_APPEND:if(l.available()<16)throw new f.default;p=l.readBits(8),v=l.readBits(8);break;case s.default.ECI:var w=e.parseECIValue(l);if(null===(g=i.default.getCharacterSetECIByValue(w)))throw new f.default;break;case s.default.HANZI:var C=l.readBits(4),E=l.readBits(y.getCharacterCountBits(r));C===e.GB2312_SUBSET&&e.decodeHanziSegment(l,d,E);break;default:var S=l.readBits(y.getCharacterCountBits(r));switch(y){case s.default.NUMERIC:e.decodeNumericSegment(l,d,S);break;case s.default.ALPHANUMERIC:e.decodeAlphanumericSegment(l,d,S,m);break;case s.default.BYTE:e.decodeByteSegment(l,d,S,g,h,c);break;case s.default.KANJI:e.decodeKanjiSegment(l,d,S);break;default:throw new f.default}}}while(y!==s.default.TERMINATOR)}catch(e){throw new f.default}return new o.default(t,d.toString(),0===h.length?null:h,null===a?null:a.toString(),p,v)},e.decodeHanziSegment=function(e,t,r){if(13*r>e.available())throw new f.default;for(var n=new Uint8Array(2*r),i=0;r>0;){var o=e.readBits(13),s=o/96<<8&4294967295|o%96;s+=s<959?41377:42657,n[i]=s>>8&255,n[i+1]=255&s,i+=2,r--}try{t.append(c.default.decode(n,a.default.GB2312))}catch(e){throw new f.default(e)}},e.decodeKanjiSegment=function(e,t,r){if(13*r>e.available())throw new f.default;for(var n=new Uint8Array(2*r),i=0;r>0;){var o=e.readBits(13),s=o/192<<8&4294967295|o%192;s+=s<7936?33088:49472,n[i]=s>>8,n[i+1]=s,i+=2,r--}try{t.append(c.default.decode(n,a.default.SHIFT_JIS))}catch(e){throw new f.default(e)}},e.decodeByteSegment=function(e,t,r,n,i,o){if(8*r>e.available())throw new f.default;for(var s,u=new Uint8Array(r),l=0;l<r;l++)u[l]=e.readBits(8);s=null===n?a.default.guessEncoding(u,o):n.getName();try{t.append(c.default.decode(u,s))}catch(e){throw new f.default(e)}i.push(u)},e.toAlphaNumericChar=function(t){if(t>=e.ALPHANUMERIC_CHARS.length)throw new f.default;return e.ALPHANUMERIC_CHARS[t]},e.decodeAlphanumericSegment=function(t,r,n,i){for(var o=r.length();n>1;){if(t.available()<11)throw new f.default;var a=t.readBits(11);r.append(e.toAlphaNumericChar(Math.floor(a/45))),r.append(e.toAlphaNumericChar(a%45)),n-=2}if(1===n){if(t.available()<6)throw new f.default;r.append(e.toAlphaNumericChar(t.readBits(6)))}if(i)for(var s=o;s<r.length();s++)"%"===r.charAt(s)&&(s<r.length()-1&&"%"===r.charAt(s+1)?r.deleteCharAt(s+1):r.setCharAt(s,String.fromCharCode(29)))},e.decodeNumericSegment=function(t,r,n){for(;n>=3;){if(t.available()<10)throw new f.default;var i=t.readBits(10);if(i>=1e3)throw new f.default;r.append(e.toAlphaNumericChar(Math.floor(i/100))),r.append(e.toAlphaNumericChar(Math.floor(i/10)%10)),r.append(e.toAlphaNumericChar(i%10)),n-=3}if(2===n){if(t.available()<7)throw new f.default;var o=t.readBits(7);if(o>=100)throw new f.default;r.append(e.toAlphaNumericChar(Math.floor(o/10))),r.append(e.toAlphaNumericChar(o%10))}else if(1===n){if(t.available()<4)throw new f.default;var a=t.readBits(4);if(a>=10)throw new f.default;r.append(e.toAlphaNumericChar(a))}},e.parseECIValue=function(e){var t=e.readBits(8);if(0==(128&t))return 127&t;if(128==(192&t))return(63&t)<<8&4294967295|e.readBits(8);if(192==(224&t))return(31&t)<<16&4294967295|e.readBits(16);throw new f.default},e.ALPHANUMERIC_CHARS="0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ $%*+-./:",e.GB2312_SUBSET=1,e}();t.default=l},function(e,t,r){"use strict";Object.defineProperty(t,"__esModule",{value:!0});var n=r(1),i=function(){function e(e,t){this.numDataCodewords=e,this.codewords=t}return e.getDataBlocks=function(t,r,i){if(t.length!==r.getTotalCodewords())throw new n.default;for(var o=r.getECBlocksForLevel(i),a=0,s=o.getECBlocks(),u=0,c=s;u<c.length;u++)a+=(p=c[u]).getCount();for(var f=new Array(a),l=0,d=0,h=s;d<h.length;d++)for(var p=h[d],v=0;v<p.getCount();v++){var g=p.getDataCodewords(),m=o.getECCodewordsPerBlock()+g;f[l++]=new e(g,new Uint8Array(m))}for(var y=f[0].codewords.length,_=f.length-1;_>=0&&f[_].codewords.length!==y;)_--;_++;var w=y-o.getECCodewordsPerBlock(),C=0;for(v=0;v<w;v++)for(var E=0;E<l;E++)f[E].codewords[v]=t[C++];for(E=_;E<l;E++)f[E].codewords[w]=t[C++];var S=f[0].codewords.length;for(v=w;v<S;v++)for(E=0;E<l;E++){var b=E<_?v:v+1;f[E].codewords[b]=t[C++]}return f},e.prototype.getNumDataCodewords=function(){return this.numDataCodewords},e.prototype.getCodewords=function(){return this.codewords},e}();t.default=i},function(e,t,r){"use strict";Object.defineProperty(t,"__esModule",{value:!0}),function(e){e[e.DATA_MASK_000=0]="DATA_MASK_000",e[e.DATA_MASK_001=1]="DATA_MASK_001",e[e.DATA_MASK_010=2]="DATA_MASK_010",e[e.DATA_MASK_011=3]="DATA_MASK_011",e[e.DATA_MASK_100=4]="DATA_MASK_100",e[e.DATA_MASK_101=5]="DATA_MASK_101",e[e.DATA_MASK_110=6]="DATA_MASK_110",e[e.DATA_MASK_111=7]="DATA_MASK_111"}(t.DataMaskValues||(t.DataMaskValues={}));var n=function(){function e(e,t){this.value=e,this.isMasked=t}return e.prototype.unmaskBitMatrix=function(e,t){for(var r=0;r<t;r++)for(var n=0;n<t;n++)this.isMasked(r,n)&&e.flip(n,r)},e.values=new Map([[0,new e(0,function(e,t){return 0==(e+t&1)})],[1,new e(1,function(e,t){return 0==(1&e)})],[2,new e(2,function(e,t){return t%3==0})],[3,new e(3,function(e,t){return(e+t)%3==0})],[4,new e(4,function(e,t){return 0==(Math.floor(e/2)+Math.floor(t/3)&1)})],[5,new e(5,function(e,t){return e*t%6==0})],[6,new e(6,function(e,t){return e*t%6<3})],[7,new e(7,function(e,t){return 0==(e+t+e*t%3&1)})]]),e}();t.default=n},function(e,t,r){"use strict";Object.defineProperty(t,"__esModule",{value:!0});var n=function(){function e(e,t){this.count=e,this.dataCodewords=t}return e.prototype.getCount=function(){return this.count},e.prototype.getDataCodewords=function(){return this.dataCodewords},e}();t.default=n},function(e,t,r){"use strict";Object.defineProperty(t,"__esModule",{value:!0});var n=function(){function e(e){for(var t=[],r=1;r<arguments.length;r++)t[r-1]=arguments[r];this.ecCodewordsPerBlock=e,this.ecBlocks=t}return e.prototype.getECCodewordsPerBlock=function(){return this.ecCodewordsPerBlock},e.prototype.getNumBlocks=function(){for(var e=0,t=0,r=this.ecBlocks;t<r.length;t++)e+=r[t].getCount();return e},e.prototype.getTotalECCodewords=function(){return this.ecCodewordsPerBlock*this.getNumBlocks()},e.prototype.getECBlocks=function(){return this.ecBlocks},e}();t.default=n},function(e,t,r){"use strict";Object.defineProperty(t,"__esModule",{value:!0});var n=r(37),i=r(57),o=r(96),a=r(4),s=function(){function e(e){var t=e.getHeight();if(t<21||1!=(3&t))throw new a.default;this.bitMatrix=e}return e.prototype.readFormatInformation=function(){if(null!==this.parsedFormatInfo&&void 0!==this.parsedFormatInfo)return this.parsedFormatInfo;for(var e=0,t=0;t<6;t++)e=this.copyBit(t,8,e);e=this.copyBit(7,8,e),e=this.copyBit(8,8,e),e=this.copyBit(8,7,e);for(var r=5;r>=0;r--)e=this.copyBit(8,r,e);var n=this.bitMatrix.getHeight(),o=0,s=n-7;for(r=n-1;r>=s;r--)o=this.copyBit(8,r,o);for(t=n-8;t<n;t++)o=this.copyBit(t,8,o);if(this.parsedFormatInfo=i.default.decodeFormatInformation(e,o),null!==this.parsedFormatInfo)return this.parsedFormatInfo;throw new a.default},e.prototype.readVersion=function(){if(null!==this.parsedVersion&&void 0!==this.parsedVersion)return this.parsedVersion;var e=this.bitMatrix.getHeight(),t=Math.floor((e-17)/4);if(t<=6)return n.default.getVersionForNumber(t);for(var r=0,i=e-11,o=5;o>=0;o--)for(var s=e-9;s>=i;s--)r=this.copyBit(s,o,r);var u=n.default.decodeVersionInformation(r);if(null!==u&&u.getDimensionForVersion()===e)return this.parsedVersion=u,u;for(r=0,s=5;s>=0;s--)for(o=e-9;o>=i;o--)r=this.copyBit(s,o,r);if(null!==(u=n.default.decodeVersionInformation(r))&&u.getDimensionForVersion()===e)return this.parsedVersion=u,u;throw new a.default},e.prototype.copyBit=function(e,t,r){return(this.isMirror?this.bitMatrix.get(t,e):this.bitMatrix.get(e,t))?r<<1|1:r<<1},e.prototype.readCodewords=function(){var e=this.readFormatInformation(),t=this.readVersion(),r=o.default.values.get(e.getDataMask()),n=this.bitMatrix.getHeight();r.unmaskBitMatrix(this.bitMatrix,n);for(var i=t.buildFunctionPattern(),s=!0,u=new Uint8Array(t.getTotalCodewords()),c=0,f=0,l=0,d=n-1;d>0;d-=2){6===d&&d--;for(var h=0;h<n;h++)for(var p=s?n-1-h:h,v=0;v<2;v++)i.get(d-v,p)||(l++,f<<=1,this.bitMatrix.get(d-v,p)&&(f|=1),8===l&&(u[c++]=f,l=0,f=0));s=!s}if(c!==t.getTotalCodewords())throw new a.default;return u},e.prototype.remask=function(){if(null!==this.parsedFormatInfo){var e=o.default.values[this.parsedFormatInfo.getDataMask()],t=this.bitMatrix.getHeight();e.unmaskBitMatrix(this.bitMatrix,t)}},e.prototype.setMirror=function(e){this.parsedVersion=null,this.parsedFormatInfo=null,this.isMirror=e},e.prototype.mirror=function(){for(var e=this.bitMatrix,t=0,r=e.getWidth();t<r;t++)for(var n=t+1,i=e.getHeight();n<i;n++)e.get(t,n)!==e.get(n,t)&&(e.flip(n,t),e.flip(t,n))},e}();t.default=s},function(e,t,r){"use strict";Object.defineProperty(t,"__esModule",{value:!0});var n=r(6),i=r(13),o=r(38),a=r(99),s=r(56),u=r(95),c=r(94),f=r(11),l=function(){function e(){this.rsDecoder=new o.default(i.default.QR_CODE_FIELD_256)}return e.prototype.decodeBooleanArray=function(e,t){return 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this")())},{}],9:[function(e,t,r){"use strict";var n=e("sdp");function i(e,t,r,i,o){var a=n.writeRtpDescription(e.kind,t);if(a+=n.writeIceParameters(e.iceGatherer.getLocalParameters()),a+=n.writeDtlsParameters(e.dtlsTransport.getLocalParameters(),"offer"===r?"actpass":o||"active"),a+="a=mid:"+e.mid+"\r\n",e.rtpSender&&e.rtpReceiver?a+="a=sendrecv\r\n":e.rtpSender?a+="a=sendonly\r\n":e.rtpReceiver?a+="a=recvonly\r\n":a+="a=inactive\r\n",e.rtpSender){var s=e.rtpSender._initialTrackId||e.rtpSender.track.id;e.rtpSender._initialTrackId=s;var u="msid:"+(i?i.id:"-")+" "+s+"\r\n";a+="a="+u,a+="a=ssrc:"+e.sendEncodingParameters[0].ssrc+" "+u,e.sendEncodingParameters[0].rtx&&(a+="a=ssrc:"+e.sendEncodingParameters[0].rtx.ssrc+" "+u,a+="a=ssrc-group:FID "+e.sendEncodingParameters[0].ssrc+" "+e.sendEncodingParameters[0].rtx.ssrc+"\r\n")}return a+="a=ssrc:"+e.sendEncodingParameters[0].ssrc+" cname:"+n.localCName+"\r\n",e.rtpSender&&e.sendEncodingParameters[0].rtx&&(a+="a=ssrc:"+e.sendEncodingParameters[0].rtx.ssrc+" cname:"+n.localCName+"\r\n"),a}function o(e,t){var r={codecs:[],headerExtensions:[],fecMechanisms:[]},n=function(e,t){e=parseInt(e,10);for(var r=0;r<t.length;r++)if(t[r].payloadType===e||t[r].preferredPayloadType===e)return t[r]},i=function(e,t,r,i){var o=n(e.parameters.apt,r),a=n(t.parameters.apt,i);return o&&a&&o.name.toLowerCase()===a.name.toLowerCase()};return e.codecs.forEach(function(n){for(var o=0;o<t.codecs.length;o++){var a=t.codecs[o];if(n.name.toLowerCase()===a.name.toLowerCase()&&n.clockRate===a.clockRate){if("rtx"===n.name.toLowerCase()&&n.parameters&&a.parameters.apt&&!i(n,a,e.codecs,t.codecs))continue;(a=JSON.parse(JSON.stringify(a))).numChannels=Math.min(n.numChannels,a.numChannels),r.codecs.push(a),a.rtcpFeedback=a.rtcpFeedback.filter(function(e){for(var t=0;t<n.rtcpFeedback.length;t++)if(n.rtcpFeedback[t].type===e.type&&n.rtcpFeedback[t].parameter===e.parameter)return!0;return!1});break}}}),e.headerExtensions.forEach(function(e){for(var n=0;n<t.headerExtensions.length;n++){var i=t.headerExtensions[n];if(e.uri===i.uri){r.headerExtensions.push(i);break}}}),r}function a(e,t,r){return-1!=={offer:{setLocalDescription:["stable","have-local-offer"],setRemoteDescription:["stable","have-remote-offer"]},answer:{setLocalDescription:["have-remote-offer","have-local-pranswer"],setRemoteDescription:["have-local-offer","have-remote-pranswer"]}}[t][e].indexOf(r)}function s(e,t){var r=e.getRemoteCandidates().find(function(e){return t.foundation===e.foundation&&t.ip===e.ip&&t.port===e.port&&t.priority===e.priority&&t.protocol===e.protocol&&t.type===e.type});return r||e.addRemoteCandidate(t),!r}function u(e,t){var r=new Error(t);return r.name=e,r.code={NotSupportedError:9,InvalidStateError:11,InvalidAccessError:15,TypeError:void 0,OperationError:void 0}[e],r}t.exports=function(e,t){function r(t,r){r.addTrack(t),r.dispatchEvent(new e.MediaStreamTrackEvent("addtrack",{track:t}))}function c(t,r,n,i){var o=new Event("track");o.track=r,o.receiver=n,o.transceiver={receiver:n},o.streams=i,e.setTimeout(function(){t._dispatchEvent("track",o)})}var f=function(r){var i=this,o=document.createDocumentFragment();if(["addEventListener","removeEventListener","dispatchEvent"].forEach(function(e){i[e]=o[e].bind(o)}),this.canTrickleIceCandidates=null,this.needNegotiation=!1,this.localStreams=[],this.remoteStreams=[],this._localDescription=null,this._remoteDescription=null,this.signalingState="stable",this.iceConnectionState="new",this.connectionState="new",this.iceGatheringState="new",r=JSON.parse(JSON.stringify(r||{})),this.usingBundle="max-bundle"===r.bundlePolicy,"negotiate"===r.rtcpMuxPolicy)throw u("NotSupportedError","rtcpMuxPolicy 'negotiate' is not supported");switch(r.rtcpMuxPolicy||(r.rtcpMuxPolicy="require"),r.iceTransportPolicy){case"all":case"relay":break;default:r.iceTransportPolicy="all"}switch(r.bundlePolicy){case"balanced":case"max-compat":case"max-bundle":break;default:r.bundlePolicy="balanced"}if(r.iceServers=function(e,t){var r=!1;return(e=JSON.parse(JSON.stringify(e))).filter(function(e){if(e&&(e.urls||e.url)){var n=e.urls||e.url;e.url&&!e.urls&&console.warn("RTCIceServer.url is deprecated! Use urls instead.");var i="string"==typeof n;return i&&(n=[n]),n=n.filter(function(e){return 0!==e.indexOf("turn:")||-1===e.indexOf("transport=udp")||-1!==e.indexOf("turn:[")||r?0===e.indexOf("stun:")&&t>=14393&&-1===e.indexOf("?transport=udp"):(r=!0,!0)}),delete e.url,e.urls=i?n[0]:n,!!n.length}})}(r.iceServers||[],t),this._iceGatherers=[],r.iceCandidatePoolSize)for(var a=r.iceCandidatePoolSize;a>0;a--)this._iceGatherers.push(new e.RTCIceGatherer({iceServers:r.iceServers,gatherPolicy:r.iceTransportPolicy}));else r.iceCandidatePoolSize=0;this._config=r,this.transceivers=[],this._sdpSessionId=n.generateSessionId(),this._sdpSessionVersion=0,this._dtlsRole=void 0,this._isClosed=!1};Object.defineProperty(f.prototype,"localDescription",{configurable:!0,get:function(){return this._localDescription}}),Object.defineProperty(f.prototype,"remoteDescription",{configurable:!0,get:function(){return this._remoteDescription}}),f.prototype.onicecandidate=null,f.prototype.onaddstream=null,f.prototype.ontrack=null,f.prototype.onremovestream=null,f.prototype.onsignalingstatechange=null,f.prototype.oniceconnectionstatechange=null,f.prototype.onconnectionstatechange=null,f.prototype.onicegatheringstatechange=null,f.prototype.onnegotiationneeded=null,f.prototype.ondatachannel=null,f.prototype._dispatchEvent=function(e,t){this._isClosed||(this.dispatchEvent(t),"function"==typeof this["on"+e]&&this["on"+e](t))},f.prototype._emitGatheringStateChange=function(){var e=new Event("icegatheringstatechange");this._dispatchEvent("icegatheringstatechange",e)},f.prototype.getConfiguration=function(){return this._config},f.prototype.getLocalStreams=function(){return this.localStreams},f.prototype.getRemoteStreams=function(){return this.remoteStreams},f.prototype._createTransceiver=function(e,t){var r=this.transceivers.length>0,n={track:null,iceGatherer:null,iceTransport:null,dtlsTransport:null,localCapabilities:null,remoteCapabilities:null,rtpSender:null,rtpReceiver:null,kind:e,mid:null,sendEncodingParameters:null,recvEncodingParameters:null,stream:null,associatedRemoteMediaStreams:[],wantReceive:!0};if(this.usingBundle&&r)n.iceTransport=this.transceivers[0].iceTransport,n.dtlsTransport=this.transceivers[0].dtlsTransport;else{var i=this._createIceAndDtlsTransports();n.iceTransport=i.iceTransport,n.dtlsTransport=i.dtlsTransport}return t||this.transceivers.push(n),n},f.prototype.addTrack=function(t,r){if(this._isClosed)throw u("InvalidStateError","Attempted to call addTrack on a closed peerconnection.");var n;if(this.transceivers.find(function(e){return e.track===t}))throw u("InvalidAccessError","Track already exists.");for(var i=0;i<this.transceivers.length;i++)this.transceivers[i].track||this.transceivers[i].kind!==t.kind||(n=this.transceivers[i]);return n||(n=this._createTransceiver(t.kind)),this._maybeFireNegotiationNeeded(),-1===this.localStreams.indexOf(r)&&this.localStreams.push(r),n.track=t,n.stream=r,n.rtpSender=new e.RTCRtpSender(t,n.dtlsTransport),n.rtpSender},f.prototype.addStream=function(e){var r=this;if(t>=15025)e.getTracks().forEach(function(t){r.addTrack(t,e)});else{var n=e.clone();e.getTracks().forEach(function(e,t){var r=n.getTracks()[t];e.addEventListener("enabled",function(e){r.enabled=e.enabled})}),n.getTracks().forEach(function(e){r.addTrack(e,n)})}},f.prototype.removeTrack=function(t){if(this._isClosed)throw u("InvalidStateError","Attempted to call removeTrack on a closed peerconnection.");if(!(t instanceof e.RTCRtpSender))throw new TypeError("Argument 1 of RTCPeerConnection.removeTrack does not implement interface RTCRtpSender.");var r=this.transceivers.find(function(e){return e.rtpSender===t});if(!r)throw u("InvalidAccessError","Sender was not created by this connection.");var n=r.stream;r.rtpSender.stop(),r.rtpSender=null,r.track=null,r.stream=null,-1===this.transceivers.map(function(e){return e.stream}).indexOf(n)&&this.localStreams.indexOf(n)>-1&&this.localStreams.splice(this.localStreams.indexOf(n),1),this._maybeFireNegotiationNeeded()},f.prototype.removeStream=function(e){var t=this;e.getTracks().forEach(function(e){var r=t.getSenders().find(function(t){return t.track===e});r&&t.removeTrack(r)})},f.prototype.getSenders=function(){return this.transceivers.filter(function(e){return!!e.rtpSender}).map(function(e){return e.rtpSender})},f.prototype.getReceivers=function(){return this.transceivers.filter(function(e){return!!e.rtpReceiver}).map(function(e){return e.rtpReceiver})},f.prototype._createIceGatherer=function(t,r){var n=this;if(r&&t>0)return this.transceivers[0].iceGatherer;if(this._iceGatherers.length)return this._iceGatherers.shift();var i=new e.RTCIceGatherer({iceServers:this._config.iceServers,gatherPolicy:this._config.iceTransportPolicy});return Object.defineProperty(i,"state",{value:"new",writable:!0}),this.transceivers[t].bufferedCandidateEvents=[],this.transceivers[t].bufferCandidates=function(e){var r=!e.candidate||0===Object.keys(e.candidate).length;i.state=r?"completed":"gathering",null!==n.transceivers[t].bufferedCandidateEvents&&n.transceivers[t].bufferedCandidateEvents.push(e)},i.addEventListener("localcandidate",this.transceivers[t].bufferCandidates),i},f.prototype._gather=function(t,r){var i=this,o=this.transceivers[r].iceGatherer;if(!o.onlocalcandidate){var a=this.transceivers[r].bufferedCandidateEvents;this.transceivers[r].bufferedCandidateEvents=null,o.removeEventListener("localcandidate",this.transceivers[r].bufferCandidates),o.onlocalcandidate=function(e){if(!(i.usingBundle&&r>0)){var a=new Event("icecandidate");a.candidate={sdpMid:t,sdpMLineIndex:r};var s=e.candidate,u=!s||0===Object.keys(s).length;if(u)"new"!==o.state&&"gathering"!==o.state||(o.state="completed");else{"new"===o.state&&(o.state="gathering"),s.component=1,s.ufrag=o.getLocalParameters().usernameFragment;var c=n.writeCandidate(s);a.candidate=Object.assign(a.candidate,n.parseCandidate(c)),a.candidate.candidate=c,a.candidate.toJSON=function(){return{candidate:a.candidate.candidate,sdpMid:a.candidate.sdpMid,sdpMLineIndex:a.candidate.sdpMLineIndex,usernameFragment:a.candidate.usernameFragment}}}var f=n.getMediaSections(i._localDescription.sdp);f[a.candidate.sdpMLineIndex]+=u?"a=end-of-candidates\r\n":"a="+a.candidate.candidate+"\r\n",i._localDescription.sdp=n.getDescription(i._localDescription.sdp)+f.join("");var l=i.transceivers.every(function(e){return e.iceGatherer&&"completed"===e.iceGatherer.state});"gathering"!==i.iceGatheringState&&(i.iceGatheringState="gathering",i._emitGatheringStateChange()),u||i._dispatchEvent("icecandidate",a),l&&(i._dispatchEvent("icecandidate",new Event("icecandidate")),i.iceGatheringState="complete",i._emitGatheringStateChange())}},e.setTimeout(function(){a.forEach(function(e){o.onlocalcandidate(e)})},0)}},f.prototype._createIceAndDtlsTransports=function(){var t=this,r=new e.RTCIceTransport(null);r.onicestatechange=function(){t._updateIceConnectionState(),t._updateConnectionState()};var n=new e.RTCDtlsTransport(r);return n.ondtlsstatechange=function(){t._updateConnectionState()},n.onerror=function(){Object.defineProperty(n,"state",{value:"failed",writable:!0}),t._updateConnectionState()},{iceTransport:r,dtlsTransport:n}},f.prototype._disposeIceAndDtlsTransports=function(e){var t=this.transceivers[e].iceGatherer;t&&(delete t.onlocalcandidate,delete this.transceivers[e].iceGatherer);var r=this.transceivers[e].iceTransport;r&&(delete r.onicestatechange,delete this.transceivers[e].iceTransport);var n=this.transceivers[e].dtlsTransport;n&&(delete n.ondtlsstatechange,delete n.onerror,delete this.transceivers[e].dtlsTransport)},f.prototype._transceive=function(e,r,i){var a=o(e.localCapabilities,e.remoteCapabilities);r&&e.rtpSender&&(a.encodings=e.sendEncodingParameters,a.rtcp={cname:n.localCName,compound:e.rtcpParameters.compound},e.recvEncodingParameters.length&&(a.rtcp.ssrc=e.recvEncodingParameters[0].ssrc),e.rtpSender.send(a)),i&&e.rtpReceiver&&a.codecs.length>0&&("video"===e.kind&&e.recvEncodingParameters&&t<15019&&e.recvEncodingParameters.forEach(function(e){delete e.rtx}),e.recvEncodingParameters.length?a.encodings=e.recvEncodingParameters:a.encodings=[{}],a.rtcp={compound:e.rtcpParameters.compound},e.rtcpParameters.cname&&(a.rtcp.cname=e.rtcpParameters.cname),e.sendEncodingParameters.length&&(a.rtcp.ssrc=e.sendEncodingParameters[0].ssrc),e.rtpReceiver.receive(a))},f.prototype.setLocalDescription=function(e){var t,r,i=this;if(-1===["offer","answer"].indexOf(e.type))return Promise.reject(u("TypeError",'Unsupported type "'+e.type+'"'));if(!a("setLocalDescription",e.type,i.signalingState)||i._isClosed)return Promise.reject(u("InvalidStateError","Can not set local "+e.type+" in state "+i.signalingState));if("offer"===e.type)t=n.splitSections(e.sdp),r=t.shift(),t.forEach(function(e,t){var r=n.parseRtpParameters(e);i.transceivers[t].localCapabilities=r}),i.transceivers.forEach(function(e,t){i._gather(e.mid,t)});else if("answer"===e.type){t=n.splitSections(i._remoteDescription.sdp),r=t.shift();var s=n.matchPrefix(r,"a=ice-lite").length>0;t.forEach(function(e,t){var a=i.transceivers[t],u=a.iceGatherer,c=a.iceTransport,f=a.dtlsTransport,l=a.localCapabilities,d=a.remoteCapabilities;if(!(n.isRejected(e)&&0===n.matchPrefix(e,"a=bundle-only").length)&&!a.rejected){var h=n.getIceParameters(e,r),p=n.getDtlsParameters(e,r);s&&(p.role="server"),i.usingBundle&&0!==t||(i._gather(a.mid,t),"new"===c.state&&c.start(u,h,s?"controlling":"controlled"),"new"===f.state&&f.start(p));var v=o(l,d);i._transceive(a,v.codecs.length>0,!1)}})}return i._localDescription={type:e.type,sdp:e.sdp},"offer"===e.type?i._updateSignalingState("have-local-offer"):i._updateSignalingState("stable"),Promise.resolve()},f.prototype.setRemoteDescription=function(i){var f=this;if(-1===["offer","answer"].indexOf(i.type))return Promise.reject(u("TypeError",'Unsupported type "'+i.type+'"'));if(!a("setRemoteDescription",i.type,f.signalingState)||f._isClosed)return Promise.reject(u("InvalidStateError","Can not set remote "+i.type+" in state "+f.signalingState));var l={};f.remoteStreams.forEach(function(e){l[e.id]=e});var d=[],h=n.splitSections(i.sdp),p=h.shift(),v=n.matchPrefix(p,"a=ice-lite").length>0,g=n.matchPrefix(p,"a=group:BUNDLE ").length>0;f.usingBundle=g;var m=n.matchPrefix(p,"a=ice-options:")[0];return f.canTrickleIceCandidates=!!m&&m.substr(14).split(" ").indexOf("trickle")>=0,h.forEach(function(a,u){var c=n.splitLines(a),h=n.getKind(a),m=n.isRejected(a)&&0===n.matchPrefix(a,"a=bundle-only").length,y=c[0].substr(2).split(" ")[2],_=n.getDirection(a,p),w=n.parseMsid(a),C=n.getMid(a)||n.generateIdentifier();if(m||"application"===h&&("DTLS/SCTP"===y||"UDP/DTLS/SCTP"===y))f.transceivers[u]={mid:C,kind:h,protocol:y,rejected:!0};else{var E,S,b,T,A,O,I,R,P;!m&&f.transceivers[u]&&f.transceivers[u].rejected&&(f.transceivers[u]=f._createTransceiver(h,!0));var M,N,D=n.parseRtpParameters(a);m||(M=n.getIceParameters(a,p),(N=n.getDtlsParameters(a,p)).role="client"),I=n.parseRtpEncodingParameters(a);var k=n.parseRtcpParameters(a),x=n.matchPrefix(a,"a=end-of-candidates",p).length>0,B=n.matchPrefix(a,"a=candidate:").map(function(e){return n.parseCandidate(e)}).filter(function(e){return 1===e.component});if(("offer"===i.type||"answer"===i.type)&&!m&&g&&u>0&&f.transceivers[u]&&(f._disposeIceAndDtlsTransports(u),f.transceivers[u].iceGatherer=f.transceivers[0].iceGatherer,f.transceivers[u].iceTransport=f.transceivers[0].iceTransport,f.transceivers[u].dtlsTransport=f.transceivers[0].dtlsTransport,f.transceivers[u].rtpSender&&f.transceivers[u].rtpSender.setTransport(f.transceivers[0].dtlsTransport),f.transceivers[u].rtpReceiver&&f.transceivers[u].rtpReceiver.setTransport(f.transceivers[0].dtlsTransport)),"offer"!==i.type||m){if("answer"===i.type&&!m){S=(E=f.transceivers[u]).iceGatherer,b=E.iceTransport,T=E.dtlsTransport,A=E.rtpReceiver,O=E.sendEncodingParameters,R=E.localCapabilities,f.transceivers[u].recvEncodingParameters=I,f.transceivers[u].remoteCapabilities=D,f.transceivers[u].rtcpParameters=k,B.length&&"new"===b.state&&(!v&&!x||g&&0!==u?B.forEach(function(e){s(E.iceTransport,e)}):b.setRemoteCandidates(B)),g&&0!==u||("new"===b.state&&b.start(S,M,"controlling"),"new"===T.state&&T.start(N)),!o(E.localCapabilities,E.remoteCapabilities).codecs.filter(function(e){return"rtx"===e.name.toLowerCase()}).length&&E.sendEncodingParameters[0].rtx&&delete E.sendEncodingParameters[0].rtx,f._transceive(E,"sendrecv"===_||"recvonly"===_,"sendrecv"===_||"sendonly"===_),!A||"sendrecv"!==_&&"sendonly"!==_?delete E.rtpReceiver:(P=A.track,w?(l[w.stream]||(l[w.stream]=new e.MediaStream),r(P,l[w.stream]),d.push([P,A,l[w.stream]])):(l.default||(l.default=new e.MediaStream),r(P,l.default),d.push([P,A,l.default])))}}else{(E=f.transceivers[u]||f._createTransceiver(h)).mid=C,E.iceGatherer||(E.iceGatherer=f._createIceGatherer(u,g)),B.length&&"new"===E.iceTransport.state&&(!x||g&&0!==u?B.forEach(function(e){s(E.iceTransport,e)}):E.iceTransport.setRemoteCandidates(B)),R=e.RTCRtpReceiver.getCapabilities(h),t<15019&&(R.codecs=R.codecs.filter(function(e){return"rtx"!==e.name})),O=E.sendEncodingParameters||[{ssrc:1001*(2*u+2)}];var L,j=!1;if("sendrecv"===_||"sendonly"===_){if(j=!E.rtpReceiver,A=E.rtpReceiver||new e.RTCRtpReceiver(E.dtlsTransport,h),j)P=A.track,w&&"-"===w.stream||(w?(l[w.stream]||(l[w.stream]=new e.MediaStream,Object.defineProperty(l[w.stream],"id",{get:function(){return w.stream}})),Object.defineProperty(P,"id",{get:function(){return w.track}}),L=l[w.stream]):(l.default||(l.default=new e.MediaStream),L=l.default)),L&&(r(P,L),E.associatedRemoteMediaStreams.push(L)),d.push([P,A,L])}else E.rtpReceiver&&E.rtpReceiver.track&&(E.associatedRemoteMediaStreams.forEach(function(t){var r,n,i=t.getTracks().find(function(e){return e.id===E.rtpReceiver.track.id});i&&(r=i,(n=t).removeTrack(r),n.dispatchEvent(new e.MediaStreamTrackEvent("removetrack",{track:r})))}),E.associatedRemoteMediaStreams=[]);E.localCapabilities=R,E.remoteCapabilities=D,E.rtpReceiver=A,E.rtcpParameters=k,E.sendEncodingParameters=O,E.recvEncodingParameters=I,f._transceive(f.transceivers[u],!1,j)}}}),void 0===f._dtlsRole&&(f._dtlsRole="offer"===i.type?"active":"passive"),f._remoteDescription={type:i.type,sdp:i.sdp},"offer"===i.type?f._updateSignalingState("have-remote-offer"):f._updateSignalingState("stable"),Object.keys(l).forEach(function(t){var r=l[t];if(r.getTracks().length){if(-1===f.remoteStreams.indexOf(r)){f.remoteStreams.push(r);var n=new Event("addstream");n.stream=r,e.setTimeout(function(){f._dispatchEvent("addstream",n)})}d.forEach(function(e){var t=e[0],n=e[1];r.id===e[2].id&&c(f,t,n,[r])})}}),d.forEach(function(e){e[2]||c(f,e[0],e[1],[])}),e.setTimeout(function(){f&&f.transceivers&&f.transceivers.forEach(function(e){e.iceTransport&&"new"===e.iceTransport.state&&e.iceTransport.getRemoteCandidates().length>0&&(console.warn("Timeout for addRemoteCandidate. Consider sending an end-of-candidates notification"),e.iceTransport.addRemoteCandidate({}))})},4e3),Promise.resolve()},f.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._isClosed=!0,this._updateSignalingState("closed")},f.prototype._updateSignalingState=function(e){this.signalingState=e;var t=new Event("signalingstatechange");this._dispatchEvent("signalingstatechange",t)},f.prototype._maybeFireNegotiationNeeded=function(){var t=this;"stable"===this.signalingState&&!0!==this.needNegotiation&&(this.needNegotiation=!0,e.setTimeout(function(){if(t.needNegotiation){t.needNegotiation=!1;var e=new Event("negotiationneeded");t._dispatchEvent("negotiationneeded",e)}},0))},f.prototype._updateIceConnectionState=function(){var e,t={new:0,closed:0,checking:0,connected:0,completed:0,disconnected:0,failed:0};if(this.transceivers.forEach(function(e){t[e.iceTransport.state]++}),e="new",t.failed>0?e="failed":t.checking>0?e="checking":t.disconnected>0?e="disconnected":t.new>0?e="new":t.connected>0?e="connected":t.completed>0&&(e="completed"),e!==this.iceConnectionState){this.iceConnectionState=e;var r=new Event("iceconnectionstatechange");this._dispatchEvent("iceconnectionstatechange",r)}},f.prototype._updateConnectionState=function(){var e,t={new:0,closed:0,connecting:0,connected:0,completed:0,disconnected:0,failed:0};if(this.transceivers.forEach(function(e){t[e.iceTransport.state]++,t[e.dtlsTransport.state]++}),t.connected+=t.completed,e="new",t.failed>0?e="failed":t.connecting>0?e="connecting":t.disconnected>0?e="disconnected":t.new>0?e="new":t.connected>0&&(e="connected"),e!==this.connectionState){this.connectionState=e;var r=new Event("connectionstatechange");this._dispatchEvent("connectionstatechange",r)}},f.prototype.createOffer=function(){var r=this;if(r._isClosed)return Promise.reject(u("InvalidStateError","Can not call createOffer after close"));var o=r.transceivers.filter(function(e){return"audio"===e.kind}).length,a=r.transceivers.filter(function(e){return"video"===e.kind}).length,s=arguments[0];if(s){if(s.mandatory||s.optional)throw new TypeError("Legacy mandatory/optional constraints not supported.");void 0!==s.offerToReceiveAudio&&(o=!0===s.offerToReceiveAudio?1:!1===s.offerToReceiveAudio?0:s.offerToReceiveAudio),void 0!==s.offerToReceiveVideo&&(a=!0===s.offerToReceiveVideo?1:!1===s.offerToReceiveVideo?0:s.offerToReceiveVideo)}for(r.transceivers.forEach(function(e){"audio"===e.kind?--o<0&&(e.wantReceive=!1):"video"===e.kind&&--a<0&&(e.wantReceive=!1)});o>0||a>0;)o>0&&(r._createTransceiver("audio"),o--),a>0&&(r._createTransceiver("video"),a--);var c=n.writeSessionBoilerplate(r._sdpSessionId,r._sdpSessionVersion++);r.transceivers.forEach(function(i,o){var a=i.track,s=i.kind,u=i.mid||n.generateIdentifier();i.mid=u,i.iceGatherer||(i.iceGatherer=r._createIceGatherer(o,r.usingBundle));var c=e.RTCRtpSender.getCapabilities(s);t<15019&&(c.codecs=c.codecs.filter(function(e){return"rtx"!==e.name})),c.codecs.forEach(function(e){"H264"===e.name&&void 0===e.parameters["level-asymmetry-allowed"]&&(e.parameters["level-asymmetry-allowed"]="1"),i.remoteCapabilities&&i.remoteCapabilities.codecs&&i.remoteCapabilities.codecs.forEach(function(t){e.name.toLowerCase()===t.name.toLowerCase()&&e.clockRate===t.clockRate&&(e.preferredPayloadType=t.payloadType)})}),c.headerExtensions.forEach(function(e){(i.remoteCapabilities&&i.remoteCapabilities.headerExtensions||[]).forEach(function(t){e.uri===t.uri&&(e.id=t.id)})});var f=i.sendEncodingParameters||[{ssrc:1001*(2*o+1)}];a&&t>=15019&&"video"===s&&!f[0].rtx&&(f[0].rtx={ssrc:f[0].ssrc+1}),i.wantReceive&&(i.rtpReceiver=new e.RTCRtpReceiver(i.dtlsTransport,s)),i.localCapabilities=c,i.sendEncodingParameters=f}),"max-compat"!==r._config.bundlePolicy&&(c+="a=group:BUNDLE "+r.transceivers.map(function(e){return e.mid}).join(" ")+"\r\n"),c+="a=ice-options:trickle\r\n",r.transceivers.forEach(function(e,t){c+=i(e,e.localCapabilities,"offer",e.stream,r._dtlsRole),c+="a=rtcp-rsize\r\n",!e.iceGatherer||"new"===r.iceGatheringState||0!==t&&r.usingBundle||(e.iceGatherer.getLocalCandidates().forEach(function(e){e.component=1,c+="a="+n.writeCandidate(e)+"\r\n"}),"completed"===e.iceGatherer.state&&(c+="a=end-of-candidates\r\n"))});var f=new e.RTCSessionDescription({type:"offer",sdp:c});return Promise.resolve(f)},f.prototype.createAnswer=function(){var r=this;if(r._isClosed)return Promise.reject(u("InvalidStateError","Can not call createAnswer after close"));if("have-remote-offer"!==r.signalingState&&"have-local-pranswer"!==r.signalingState)return Promise.reject(u("InvalidStateError","Can not call createAnswer in signalingState "+r.signalingState));var a=n.writeSessionBoilerplate(r._sdpSessionId,r._sdpSessionVersion++);r.usingBundle&&(a+="a=group:BUNDLE "+r.transceivers.map(function(e){return e.mid}).join(" ")+"\r\n"),a+="a=ice-options:trickle\r\n";var s=n.getMediaSections(r._remoteDescription.sdp).length;r.transceivers.forEach(function(e,n){if(!(n+1>s)){if(e.rejected)return"application"===e.kind?"DTLS/SCTP"===e.protocol?a+="m=application 0 DTLS/SCTP 5000\r\n":a+="m=application 0 "+e.protocol+" webrtc-datachannel\r\n":"audio"===e.kind?a+="m=audio 0 UDP/TLS/RTP/SAVPF 0\r\na=rtpmap:0 PCMU/8000\r\n":"video"===e.kind&&(a+="m=video 0 UDP/TLS/RTP/SAVPF 120\r\na=rtpmap:120 VP8/90000\r\n"),void(a+="c=IN IP4 0.0.0.0\r\na=inactive\r\na=mid:"+e.mid+"\r\n");var u;if(e.stream)"audio"===e.kind?u=e.stream.getAudioTracks()[0]:"video"===e.kind&&(u=e.stream.getVideoTracks()[0]),u&&t>=15019&&"video"===e.kind&&!e.sendEncodingParameters[0].rtx&&(e.sendEncodingParameters[0].rtx={ssrc:e.sendEncodingParameters[0].ssrc+1});var c=o(e.localCapabilities,e.remoteCapabilities);!c.codecs.filter(function(e){return"rtx"===e.name.toLowerCase()}).length&&e.sendEncodingParameters[0].rtx&&delete e.sendEncodingParameters[0].rtx,a+=i(e,c,"answer",e.stream,r._dtlsRole),e.rtcpParameters&&e.rtcpParameters.reducedSize&&(a+="a=rtcp-rsize\r\n")}});var c=new e.RTCSessionDescription({type:"answer",sdp:a});return Promise.resolve(c)},f.prototype.addIceCandidate=function(e){var t,r=this;return e&&void 0===e.sdpMLineIndex&&!e.sdpMid?Promise.reject(new TypeError("sdpMLineIndex or sdpMid required")):new Promise(function(i,o){if(!r._remoteDescription)return o(u("InvalidStateError","Can not add ICE candidate without a remote description"));if(e&&""!==e.candidate){var a=e.sdpMLineIndex;if(e.sdpMid)for(var c=0;c<r.transceivers.length;c++)if(r.transceivers[c].mid===e.sdpMid){a=c;break}var f=r.transceivers[a];if(!f)return o(u("OperationError","Can not add ICE candidate"));if(f.rejected)return i();var l=Object.keys(e.candidate).length>0?n.parseCandidate(e.candidate):{};if("tcp"===l.protocol&&(0===l.port||9===l.port))return i();if(l.component&&1!==l.component)return i();if((0===a||a>0&&f.iceTransport!==r.transceivers[0].iceTransport)&&!s(f.iceTransport,l))return o(u("OperationError","Can not add ICE candidate"));var d=e.candidate.trim();0===d.indexOf("a=")&&(d=d.substr(2)),(t=n.getMediaSections(r._remoteDescription.sdp))[a]+="a="+(l.type?d:"end-of-candidates")+"\r\n",r._remoteDescription.sdp=n.getDescription(r._remoteDescription.sdp)+t.join("")}else for(var h=0;h<r.transceivers.length&&(r.transceivers[h].rejected||(r.transceivers[h].iceTransport.addRemoteCandidate({}),(t=n.getMediaSections(r._remoteDescription.sdp))[h]+="a=end-of-candidates\r\n",r._remoteDescription.sdp=n.getDescription(r._remoteDescription.sdp)+t.join(""),!r.usingBundle));h++);i()})},f.prototype.getStats=function(t){if(t&&t instanceof e.MediaStreamTrack){var r=null;if(this.transceivers.forEach(function(e){e.rtpSender&&e.rtpSender.track===t?r=e.rtpSender:e.rtpReceiver&&e.rtpReceiver.track===t&&(r=e.rtpReceiver)}),!r)throw u("InvalidAccessError","Invalid selector.");return r.getStats()}var n=[];return this.transceivers.forEach(function(e){["rtpSender","rtpReceiver","iceGatherer","iceTransport","dtlsTransport"].forEach(function(t){e[t]&&n.push(e[t].getStats())})}),Promise.all(n).then(function(e){var t=new Map;return e.forEach(function(e){e.forEach(function(e){t.set(e.id,e)})}),t})};["RTCRtpSender","RTCRtpReceiver","RTCIceGatherer","RTCIceTransport","RTCDtlsTransport"].forEach(function(t){var r=e[t];if(r&&r.prototype&&r.prototype.getStats){var n=r.prototype.getStats;r.prototype.getStats=function(){return n.apply(this).then(function(e){var t=new Map;return Object.keys(e).forEach(function(r){var n;e[r].type={inboundrtp:"inbound-rtp",outboundrtp:"outbound-rtp",candidatepair:"candidate-pair",localcandidate:"local-candidate",remotecandidate:"remote-candidate"}[(n=e[r]).type]||n.type,t.set(r,e[r])}),t})}}});var l=["createOffer","createAnswer"];return l.forEach(function(e){var t=f.prototype[e];f.prototype[e]=function(){var e=arguments;return"function"==typeof e[0]||"function"==typeof e[1]?t.apply(this,[arguments[2]]).then(function(t){"function"==typeof e[0]&&e[0].apply(null,[t])},function(t){"function"==typeof e[1]&&e[1].apply(null,[t])}):t.apply(this,arguments)}}),(l=["setLocalDescription","setRemoteDescription","addIceCandidate"]).forEach(function(e){var t=f.prototype[e];f.prototype[e]=function(){var e=arguments;return"function"==typeof e[1]||"function"==typeof e[2]?t.apply(this,arguments).then(function(){"function"==typeof e[1]&&e[1].apply(null)},function(t){"function"==typeof e[2]&&e[2].apply(null,[t])}):t.apply(this,arguments)}}),["getStats"].forEach(function(e){var t=f.prototype[e];f.prototype[e]=function(){var e=arguments;return"function"==typeof e[1]?t.apply(this,arguments).then(function(){"function"==typeof e[1]&&e[1].apply(null)}):t.apply(this,arguments)}}),f}},{sdp:10}],10:[function(e,t,r){"use strict";var n={generateIdentifier:function(){return Math.random().toString(36).substr(2,10)}};n.localCName=n.generateIdentifier(),n.splitLines=function(e){return e.trim().split("\n").map(function(e){return e.trim()})},n.splitSections=function(e){return e.split("\nm=").map(function(e,t){return(t>0?"m="+e:e).trim()+"\r\n"})},n.getDescription=function(e){var t=n.splitSections(e);return t&&t[0]},n.getMediaSections=function(e){var t=n.splitSections(e);return t.shift(),t},n.matchPrefix=function(e,t){return n.splitLines(e).filter(function(e){return 0===e.indexOf(t)})},n.parseCandidate=function(e){for(var t,r={foundation:(t=0===e.indexOf("a=candidate:")?e.substring(12).split(" "):e.substring(10).split(" "))[0],component:parseInt(t[1],10),protocol:t[2].toLowerCase(),priority:parseInt(t[3],10),ip:t[4],address:t[4],port:parseInt(t[5],10),type:t[7]},n=8;n<t.length;n+=2)switch(t[n]){case"raddr":r.relatedAddress=t[n+1];break;case"rport":r.relatedPort=parseInt(t[n+1],10);break;case"tcptype":r.tcpType=t[n+1];break;case"ufrag":r.ufrag=t[n+1],r.usernameFragment=t[n+1];break;default:r[t[n]]=t[n+1]}return r},n.writeCandidate=function(e){var t=[];t.push(e.foundation),t.push(e.component),t.push(e.protocol.toUpperCase()),t.push(e.priority),t.push(e.address||e.ip),t.push(e.port);var r=e.type;return t.push("typ"),t.push(r),"host"!==r&&e.relatedAddress&&e.relatedPort&&(t.push("raddr"),t.push(e.relatedAddress),t.push("rport"),t.push(e.relatedPort)),e.tcpType&&"tcp"===e.protocol.toLowerCase()&&(t.push("tcptype"),t.push(e.tcpType)),(e.usernameFragment||e.ufrag)&&(t.push("ufrag"),t.push(e.usernameFragment||e.ufrag)),"candidate:"+t.join(" ")},n.parseIceOptions=function(e){return e.substr(14).split(" ")},n.parseRtpMap=function(e){var t=e.substr(9).split(" "),r={payloadType:parseInt(t.shift(),10)};return t=t[0].split("/"),r.name=t[0],r.clockRate=parseInt(t[1],10),r.channels=3===t.length?parseInt(t[2],10):1,r.numChannels=r.channels,r},n.writeRtpMap=function(e){var t=e.payloadType;void 0!==e.preferredPayloadType&&(t=e.preferredPayloadType);var r=e.channels||e.numChannels||1;return"a=rtpmap:"+t+" "+e.name+"/"+e.clockRate+(1!==r?"/"+r:"")+"\r\n"},n.parseExtmap=function(e){var t=e.substr(9).split(" ");return{id:parseInt(t[0],10),direction:t[0].indexOf("/")>0?t[0].split("/")[1]:"sendrecv",uri:t[1]}},n.writeExtmap=function(e){return"a=extmap:"+(e.id||e.preferredId)+(e.direction&&"sendrecv"!==e.direction?"/"+e.direction:"")+" "+e.uri+"\r\n"},n.parseFmtp=function(e){for(var t,r={},n=e.substr(e.indexOf(" ")+1).split(";"),i=0;i<n.length;i++)r[(t=n[i].trim().split("="))[0].trim()]=t[1];return r},n.writeFmtp=function(e){var t="",r=e.payloadType;if(void 0!==e.preferredPayloadType&&(r=e.preferredPayloadType),e.parameters&&Object.keys(e.parameters).length){var n=[];Object.keys(e.parameters).forEach(function(t){e.parameters[t]?n.push(t+"="+e.parameters[t]):n.push(t)}),t+="a=fmtp:"+r+" "+n.join(";")+"\r\n"}return t},n.parseRtcpFb=function(e){var t=e.substr(e.indexOf(" ")+1).split(" ");return{type:t.shift(),parameter:t.join(" ")}},n.writeRtcpFb=function(e){var t="",r=e.payloadType;return void 0!==e.preferredPayloadType&&(r=e.preferredPayloadType),e.rtcpFeedback&&e.rtcpFeedback.length&&e.rtcpFeedback.forEach(function(e){t+="a=rtcp-fb:"+r+" "+e.type+(e.parameter&&e.parameter.length?" "+e.parameter:"")+"\r\n"}),t},n.parseSsrcMedia=function(e){var t=e.indexOf(" "),r={ssrc:parseInt(e.substr(7,t-7),10)},n=e.indexOf(":",t);return n>-1?(r.attribute=e.substr(t+1,n-t-1),r.value=e.substr(n+1)):r.attribute=e.substr(t+1),r},n.parseSsrcGroup=function(e){var t=e.substr(13).split(" ");return{semantics:t.shift(),ssrcs:t.map(function(e){return parseInt(e,10)})}},n.getMid=function(e){var t=n.matchPrefix(e,"a=mid:")[0];if(t)return t.substr(6)},n.parseFingerprint=function(e){var t=e.substr(14).split(" ");return{algorithm:t[0].toLowerCase(),value:t[1]}},n.getDtlsParameters=function(e,t){return{role:"auto",fingerprints:n.matchPrefix(e+t,"a=fingerprint:").map(n.parseFingerprint)}},n.writeDtlsParameters=function(e,t){var r="a=setup:"+t+"\r\n";return e.fingerprints.forEach(function(e){r+="a=fingerprint:"+e.algorithm+" "+e.value+"\r\n"}),r},n.getIceParameters=function(e,t){var r=n.splitLines(e);return{usernameFragment:(r=r.concat(n.splitLines(t))).filter(function(e){return 0===e.indexOf("a=ice-ufrag:")})[0].substr(12),password:r.filter(function(e){return 0===e.indexOf("a=ice-pwd:")})[0].substr(10)}},n.writeIceParameters=function(e){return"a=ice-ufrag:"+e.usernameFragment+"\r\na=ice-pwd:"+e.password+"\r\n"},n.parseRtpParameters=function(e){for(var t={codecs:[],headerExtensions:[],fecMechanisms:[],rtcp:[]},r=n.splitLines(e)[0].split(" "),i=3;i<r.length;i++){var o=r[i],a=n.matchPrefix(e,"a=rtpmap:"+o+" ")[0];if(a){var s=n.parseRtpMap(a),u=n.matchPrefix(e,"a=fmtp:"+o+" ");switch(s.parameters=u.length?n.parseFmtp(u[0]):{},s.rtcpFeedback=n.matchPrefix(e,"a=rtcp-fb:"+o+" ").map(n.parseRtcpFb),t.codecs.push(s),s.name.toUpperCase()){case"RED":case"ULPFEC":t.fecMechanisms.push(s.name.toUpperCase())}}}return n.matchPrefix(e,"a=extmap:").forEach(function(e){t.headerExtensions.push(n.parseExtmap(e))}),t},n.writeRtpDescription=function(e,t){var r="";r+="m="+e+" ",r+=t.codecs.length>0?"9":"0",r+=" UDP/TLS/RTP/SAVPF ",r+=t.codecs.map(function(e){return void 0!==e.preferredPayloadType?e.preferredPayloadType:e.payloadType}).join(" ")+"\r\n",r+="c=IN IP4 0.0.0.0\r\n",r+="a=rtcp:9 IN IP4 0.0.0.0\r\n",t.codecs.forEach(function(e){r+=n.writeRtpMap(e),r+=n.writeFmtp(e),r+=n.writeRtcpFb(e)});var i=0;return t.codecs.forEach(function(e){e.maxptime>i&&(i=e.maxptime)}),i>0&&(r+="a=maxptime:"+i+"\r\n"),r+="a=rtcp-mux\r\n",t.headerExtensions&&t.headerExtensions.forEach(function(e){r+=n.writeExtmap(e)}),r},n.parseRtpEncodingParameters=function(e){var t,r=[],i=n.parseRtpParameters(e),o=-1!==i.fecMechanisms.indexOf("RED"),a=-1!==i.fecMechanisms.indexOf("ULPFEC"),s=n.matchPrefix(e,"a=ssrc:").map(function(e){return n.parseSsrcMedia(e)}).filter(function(e){return"cname"===e.attribute}),u=s.length>0&&s[0].ssrc,c=n.matchPrefix(e,"a=ssrc-group:FID").map(function(e){return e.substr(17).split(" ").map(function(e){return parseInt(e,10)})});c.length>0&&c[0].length>1&&c[0][0]===u&&(t=c[0][1]),i.codecs.forEach(function(e){if("RTX"===e.name.toUpperCase()&&e.parameters.apt){var n={ssrc:u,codecPayloadType:parseInt(e.parameters.apt,10)};u&&t&&(n.rtx={ssrc:t}),r.push(n),o&&((n=JSON.parse(JSON.stringify(n))).fec={ssrc:u,mechanism:a?"red+ulpfec":"red"},r.push(n))}}),0===r.length&&u&&r.push({ssrc:u});var f=n.matchPrefix(e,"b=");return f.length&&(f=0===f[0].indexOf("b=TIAS:")?parseInt(f[0].substr(7),10):0===f[0].indexOf("b=AS:")?1e3*parseInt(f[0].substr(5),10)*.95-16e3:void 0,r.forEach(function(e){e.maxBitrate=f})),r},n.parseRtcpParameters=function(e){var t={},r=n.matchPrefix(e,"a=ssrc:").map(function(e){return n.parseSsrcMedia(e)}).filter(function(e){return"cname"===e.attribute})[0];r&&(t.cname=r.value,t.ssrc=r.ssrc);var i=n.matchPrefix(e,"a=rtcp-rsize");t.reducedSize=i.length>0,t.compound=0===i.length;var o=n.matchPrefix(e,"a=rtcp-mux");return t.mux=o.length>0,t},n.parseMsid=function(e){var t,r=n.matchPrefix(e,"a=msid:");if(1===r.length)return{stream:(t=r[0].substr(7).split(" "))[0],track:t[1]};var i=n.matchPrefix(e,"a=ssrc:").map(function(e){return n.parseSsrcMedia(e)}).filter(function(e){return"msid"===e.attribute});return i.length>0?{stream:(t=i[0].value.split(" "))[0],track:t[1]}:void 0},n.generateSessionId=function(){return Math.random().toString().substr(2,21)},n.writeSessionBoilerplate=function(e,t,r){var i=void 0!==t?t:2;return"v=0\r\no="+(r||"thisisadapterortc")+" "+(e||n.generateSessionId())+" "+i+" IN IP4 127.0.0.1\r\ns=-\r\nt=0 0\r\n"},n.writeMediaSection=function(e,t,r,i){var o=n.writeRtpDescription(e.kind,t);if(o+=n.writeIceParameters(e.iceGatherer.getLocalParameters()),o+=n.writeDtlsParameters(e.dtlsTransport.getLocalParameters(),"offer"===r?"actpass":"active"),o+="a=mid:"+e.mid+"\r\n",e.direction?o+="a="+e.direction+"\r\n":e.rtpSender&&e.rtpReceiver?o+="a=sendrecv\r\n":e.rtpSender?o+="a=sendonly\r\n":e.rtpReceiver?o+="a=recvonly\r\n":o+="a=inactive\r\n",e.rtpSender){var a="msid:"+i.id+" "+e.rtpSender.track.id+"\r\n";o+="a="+a,o+="a=ssrc:"+e.sendEncodingParameters[0].ssrc+" "+a,e.sendEncodingParameters[0].rtx&&(o+="a=ssrc:"+e.sendEncodingParameters[0].rtx.ssrc+" "+a,o+="a=ssrc-group:FID "+e.sendEncodingParameters[0].ssrc+" "+e.sendEncodingParameters[0].rtx.ssrc+"\r\n")}return o+="a=ssrc:"+e.sendEncodingParameters[0].ssrc+" cname:"+n.localCName+"\r\n",e.rtpSender&&e.sendEncodingParameters[0].rtx&&(o+="a=ssrc:"+e.sendEncodingParameters[0].rtx.ssrc+" cname:"+n.localCName+"\r\n"),o},n.getDirection=function(e,t){for(var r=n.splitLines(e),i=0;i<r.length;i++)switch(r[i]){case"a=sendrecv":case"a=sendonly":case"a=recvonly":case"a=inactive":return r[i].substr(2)}return t?n.getDirection(t):"sendrecv"},n.getKind=function(e){return n.splitLines(e)[0].split(" ")[0].substr(2)},n.isRejected=function(e){return"0"===e.split(" ",2)[1]},n.parseMLine=function(e){var t=n.splitLines(e)[0].substr(2).split(" ");return{kind:t[0],port:parseInt(t[1],10),protocol:t[2],fmt:t.slice(3).join(" ")}},n.parseOLine=function(e){var t=n.matchPrefix(e,"o=")[0].substr(2).split(" ");return{username:t[0],sessionId:t[1],sessionVersion:parseInt(t[2],10),netType:t[3],addressType:t[4],address:t[5]}},n.isValidSDP=function(e){if("string"!=typeof e||0===e.length)return!1;for(var t=n.splitLines(e),r=0;r<t.length;r++)if(t[r].length<2||"="!==t[r].charAt(1))return!1;return!0},"object"==typeof t&&(t.exports=n)},{}],12:[function(e,t,r){t.exports=e("./lib/visibility.timers.js")},{"./lib/visibility.timers.js":14}],14:[function(e,t,r){!function(r){var n=-1,i=function(e){return e.every=function(t,r,i){e._time(),i||(i=r,r=null);var o=n+=1;return e._timers[o]={visible:t,hidden:r,callback:i},e._run(o,!1),e.isSupported()&&e._listen(),o},e.stop=function(t){return!!e._timers[t]&&(e._stop(t),delete e._timers[t],!0)},e._timers={},e._time=function(){e._timed||(e._timed=!0,e._wasHidden=e.hidden(),e.change(function(){e._stopRun(),e._wasHidden=e.hidden()}))},e._run=function(t,n){var i,o=e._timers[t];if(e.hidden()){if(null===o.hidden)return;i=o.hidden}else i=o.visible;var a=function(){o.last=new Date,o.callback.call(r)};if(n){var s=new Date-o.last;i>s?o.delay=setTimeout(function(){o.id=setInterval(a,i),a()},i-s):(o.id=setInterval(a,i),a())}else o.id=setInterval(a,i)},e._stop=function(t){var r=e._timers[t];clearInterval(r.id),clearTimeout(r.delay),delete r.id,delete r.delay},e._stopRun=function(t){var r=e.hidden(),n=e._wasHidden;if(r&&!n||!r&&n)for(var i in e._timers)e._stop(i),e._run(i,!r)},e};void 0!==t&&t.exports?t.exports=i(e("./visibility.core")):i(r.Visibility||e("./visibility.core"))}(window)},{"./visibility.core":13}],13:[function(e,t,r){var n,i,o;n=this,i=-1,o={onVisible:function(e){var t=o.isSupported();if(!t||!o.hidden())return e(),t;var r=o.change(function(t,n){o.hidden()||(o.unbind(r),e())});return r},change:function(e){if(!o.isSupported())return!1;var t=i+=1;return o._callbacks[t]=e,o._listen(),t},unbind:function(e){delete o._callbacks[e]},afterPrerendering:function(e){var t=o.isSupported();if(!t||"prerender"!=o.state())return e(),t;var r=o.change(function(t,n){"prerender"!=n&&(o.unbind(r),e())});return r},hidden:function(){return!(!o._doc.hidden&&!o._doc.webkitHidden)},state:function(){return o._doc.visibilityState||o._doc.webkitVisibilityState||"visible"},isSupported:function(){return!(!o._doc.visibilityState&&!o._doc.webkitVisibilityState)},_doc:document||{},_callbacks:{},_change:function(e){var t=o.state();for(var r in o._callbacks)o._callbacks[r].call(o._doc,e,t)},_listen:function(){if(!o._init){var e="visibilitychange";o._doc.webkitVisibilityState&&(e="webkit"+e);var t=function(){o._change.apply(o,arguments)};o._doc.addEventListener?o._doc.addEventListener(e,t):o._doc.attachEvent(e,t),o._init=!0}}},void 0!==t&&t.exports?t.exports=o:n.Visibility=o},{}],15:[function(e,t,r){(function(r){"use strict";var n=e("./adapter_factory.js");t.exports=n({window:r.window})}).call(this,"undefined"!=typeof global?global:"undefined"!=typeof self?self:"undefined"!=typeof window?window:{})},{"./adapter_factory.js":16}],16:[function(e,t,r){"use strict";var n=e("./utils");t.exports=function(t,r){var i=t&&t.window,o={shimChrome:!0,shimFirefox:!0,shimEdge:!0,shimSafari:!0};for(var a in r)hasOwnProperty.call(r,a)&&(o[a]=r[a]);var s=n.log,u=n.detectBrowser(i),c=e("./chrome/chrome_shim")||null,f=e("./edge/edge_shim")||null,l=e("./firefox/firefox_shim")||null,d=e("./safari/safari_shim")||null,h=e("./common_shim")||null,p={browserDetails:u,commonShim:h,extractVersion:n.extractVersion,disableLog:n.disableLog,disableWarnings:n.disableWarnings};switch(u.browser){case"chrome":if(!c||!c.shimPeerConnection||!o.shimChrome)return s("Chrome shim is not included in this adapter release."),p;s("adapter.js shimming chrome."),p.browserShim=c,h.shimCreateObjectURL(i),c.shimGetUserMedia(i),c.shimMediaStream(i),c.shimSourceObject(i),c.shimPeerConnection(i),c.shimOnTrack(i),c.shimAddTrackRemoveTrack(i),c.shimGetSendersWithDtmf(i),c.shimSenderReceiverGetStats(i),c.fixNegotiationNeeded(i),h.shimRTCIceCandidate(i),h.shimMaxMessageSize(i),h.shimSendThrowTypeError(i);break;case"firefox":if(!l||!l.shimPeerConnection||!o.shimFirefox)return s("Firefox shim is not included in this adapter release."),p;s("adapter.js shimming firefox."),p.browserShim=l,h.shimCreateObjectURL(i),l.shimGetUserMedia(i),l.shimSourceObject(i),l.shimPeerConnection(i),l.shimOnTrack(i),l.shimRemoveStream(i),l.shimSenderGetStats(i),l.shimReceiverGetStats(i),l.shimRTCDataChannel(i),h.shimRTCIceCandidate(i),h.shimMaxMessageSize(i),h.shimSendThrowTypeError(i);break;case"edge":if(!f||!f.shimPeerConnection||!o.shimEdge)return s("MS edge shim is not included in this adapter release."),p;s("adapter.js shimming edge."),p.browserShim=f,h.shimCreateObjectURL(i),f.shimGetUserMedia(i),f.shimPeerConnection(i),f.shimReplaceTrack(i),h.shimMaxMessageSize(i),h.shimSendThrowTypeError(i);break;case"safari":if(!d||!o.shimSafari)return s("Safari shim is not included in this adapter release."),p;s("adapter.js shimming safari."),p.browserShim=d,h.shimCreateObjectURL(i),d.shimRTCIceServerUrls(i),d.shimCreateOfferLegacy(i),d.shimCallbacksAPI(i),d.shimLocalStreamsAPI(i),d.shimRemoteStreamsAPI(i),d.shimTrackEventTransceiver(i),d.shimGetUserMedia(i),h.shimRTCIceCandidate(i),h.shimMaxMessageSize(i),h.shimSendThrowTypeError(i);break;default:s("Unsupported browser!")}return p}},{"./chrome/chrome_shim":17,"./common_shim":19,"./edge/edge_shim":20,"./firefox/firefox_shim":23,"./safari/safari_shim":25,"./utils":26}],26:[function(e,t,r){"use strict";var n=!0,i=!0;function o(e,t,r){var n=e.match(t);return n&&n.length>=r&&parseInt(n[r],10)}t.exports={extractVersion:o,wrapPeerConnectionEvent:function(e,t,r){if(e.RTCPeerConnection){var n=e.RTCPeerConnection.prototype,i=n.addEventListener;n.addEventListener=function(e,n){if(e!==t)return i.apply(this,arguments);var o=function(e){var t=r(e);t&&n(t)};return this._eventMap=this._eventMap||{},this._eventMap[n]=o,i.apply(this,[e,o])};var o=n.removeEventListener;n.removeEventListener=function(e,r){if(e!==t||!this._eventMap||!this._eventMap[r])return o.apply(this,arguments);var n=this._eventMap[r];return delete this._eventMap[r],o.apply(this,[e,n])},Object.defineProperty(n,"on"+t,{get:function(){return this["_on"+t]},set:function(e){this["_on"+t]&&(this.removeEventListener(t,this["_on"+t]),delete this["_on"+t]),e&&this.addEventListener(t,this["_on"+t]=e)},enumerable:!0,configurable:!0})}},disableLog:function(e){return"boolean"!=typeof e?new Error("Argument type: "+typeof e+". Please use a boolean."):(n=e,e?"adapter.js logging disabled":"adapter.js logging enabled")},disableWarnings:function(e){return"boolean"!=typeof e?new Error("Argument type: "+typeof e+". Please use a boolean."):(i=!e,"adapter.js deprecation warnings "+(e?"disabled":"enabled"))},log:function(){if("object"==typeof window){if(n)return;"undefined"!=typeof console&&"function"==typeof console.log&&console.log.apply(console,arguments)}},deprecated:function(e,t){i&&console.warn(e+" is deprecated, please use "+t+" instead.")},detectBrowser:function(e){var t=e&&e.navigator,r={browser:null,version:null};if(void 0===e||!e.navigator)return r.browser="Not a browser.",r;if(t.mozGetUserMedia)r.browser="firefox",r.version=o(t.userAgent,/Firefox\/(\d+)\./,1);else if(t.webkitGetUserMedia)r.browser="chrome",r.version=o(t.userAgent,/Chrom(e|ium)\/(\d+)\./,2);else if(t.mediaDevices&&t.userAgent.match(/Edge\/(\d+).(\d+)$/))r.browser="edge",r.version=o(t.userAgent,/Edge\/(\d+).(\d+)$/,2);else{if(!e.RTCPeerConnection||!t.userAgent.match(/AppleWebKit\/(\d+)\./))return r.browser="Not a supported browser.",r;r.browser="safari",r.version=o(t.userAgent,/AppleWebKit\/(\d+)\./,1)}return r}}},{}],25:[function(e,t,r){"use strict";var n=e("../utils");t.exports={shimLocalStreamsAPI:function(e){if("object"==typeof e&&e.RTCPeerConnection){if("getLocalStreams"in e.RTCPeerConnection.prototype||(e.RTCPeerConnection.prototype.getLocalStreams=function(){return this._localStreams||(this._localStreams=[]),this._localStreams}),"getStreamById"in e.RTCPeerConnection.prototype||(e.RTCPeerConnection.prototype.getStreamById=function(e){var t=null;return this._localStreams&&this._localStreams.forEach(function(r){r.id===e&&(t=r)}),this._remoteStreams&&this._remoteStreams.forEach(function(r){r.id===e&&(t=r)}),t}),!("addStream"in e.RTCPeerConnection.prototype)){var t=e.RTCPeerConnection.prototype.addTrack;e.RTCPeerConnection.prototype.addStream=function(e){this._localStreams||(this._localStreams=[]),-1===this._localStreams.indexOf(e)&&this._localStreams.push(e);var r=this;e.getTracks().forEach(function(n){t.call(r,n,e)})},e.RTCPeerConnection.prototype.addTrack=function(e,r){return r&&(this._localStreams?-1===this._localStreams.indexOf(r)&&this._localStreams.push(r):this._localStreams=[r]),t.call(this,e,r)}}"removeStream"in e.RTCPeerConnection.prototype||(e.RTCPeerConnection.prototype.removeStream=function(e){this._localStreams||(this._localStreams=[]);var t=this._localStreams.indexOf(e);if(-1!==t){this._localStreams.splice(t,1);var r=this,n=e.getTracks();this.getSenders().forEach(function(e){-1!==n.indexOf(e.track)&&r.removeTrack(e)})}})}},shimRemoteStreamsAPI:function(e){if("object"==typeof e&&e.RTCPeerConnection&&("getRemoteStreams"in e.RTCPeerConnection.prototype||(e.RTCPeerConnection.prototype.getRemoteStreams=function(){return this._remoteStreams?this._remoteStreams:[]}),!("onaddstream"in e.RTCPeerConnection.prototype))){Object.defineProperty(e.RTCPeerConnection.prototype,"onaddstream",{get:function(){return this._onaddstream},set:function(e){this._onaddstream&&this.removeEventListener("addstream",this._onaddstream),this.addEventListener("addstream",this._onaddstream=e)}});var t=e.RTCPeerConnection.prototype.setRemoteDescription;e.RTCPeerConnection.prototype.setRemoteDescription=function(){var e=this;return this._onaddstreampoly||this.addEventListener("track",this._onaddstreampoly=function(t){t.streams.forEach(function(t){if(e._remoteStreams||(e._remoteStreams=[]),!(e._remoteStreams.indexOf(t)>=0)){e._remoteStreams.push(t);var r=new Event("addstream");r.stream=t,e.dispatchEvent(r)}})}),t.apply(e,arguments)}}},shimCallbacksAPI:function(e){if("object"==typeof e&&e.RTCPeerConnection){var t=e.RTCPeerConnection.prototype,r=t.createOffer,n=t.createAnswer,i=t.setLocalDescription,o=t.setRemoteDescription,a=t.addIceCandidate;t.createOffer=function(e,t){var n=arguments.length>=2?arguments[2]:arguments[0],i=r.apply(this,[n]);return t?(i.then(e,t),Promise.resolve()):i},t.createAnswer=function(e,t){var r=arguments.length>=2?arguments[2]:arguments[0],i=n.apply(this,[r]);return t?(i.then(e,t),Promise.resolve()):i};var s=function(e,t,r){var n=i.apply(this,[e]);return r?(n.then(t,r),Promise.resolve()):n};t.setLocalDescription=s,s=function(e,t,r){var n=o.apply(this,[e]);return r?(n.then(t,r),Promise.resolve()):n},t.setRemoteDescription=s,s=function(e,t,r){var n=a.apply(this,[e]);return r?(n.then(t,r),Promise.resolve()):n},t.addIceCandidate=s}},shimGetUserMedia:function(e){var t=e&&e.navigator;t.getUserMedia||(t.webkitGetUserMedia?t.getUserMedia=t.webkitGetUserMedia.bind(t):t.mediaDevices&&t.mediaDevices.getUserMedia&&(t.getUserMedia=function(e,r,n){t.mediaDevices.getUserMedia(e).then(r,n)}.bind(t)))},shimRTCIceServerUrls:function(e){var t=e.RTCPeerConnection;e.RTCPeerConnection=function(e,r){if(e&&e.iceServers){for(var i=[],o=0;o<e.iceServers.length;o++){var a=e.iceServers[o];!a.hasOwnProperty("urls")&&a.hasOwnProperty("url")?(n.deprecated("RTCIceServer.url","RTCIceServer.urls"),(a=JSON.parse(JSON.stringify(a))).urls=a.url,delete a.url,i.push(a)):i.push(e.iceServers[o])}e.iceServers=i}return new t(e,r)},e.RTCPeerConnection.prototype=t.prototype,"generateCertificate"in e.RTCPeerConnection&&Object.defineProperty(e.RTCPeerConnection,"generateCertificate",{get:function(){return t.generateCertificate}})},shimTrackEventTransceiver:function(e){"object"==typeof e&&e.RTCPeerConnection&&"receiver"in e.RTCTrackEvent.prototype&&!e.RTCTransceiver&&Object.defineProperty(e.RTCTrackEvent.prototype,"transceiver",{get:function(){return{receiver:this.receiver}}})},shimCreateOfferLegacy:function(e){var t=e.RTCPeerConnection.prototype.createOffer;e.RTCPeerConnection.prototype.createOffer=function(e){var r=this;if(e){void 0!==e.offerToReceiveAudio&&(e.offerToReceiveAudio=!!e.offerToReceiveAudio);var n=r.getTransceivers().find(function(e){return e.sender.track&&"audio"===e.sender.track.kind});!1===e.offerToReceiveAudio&&n?"sendrecv"===n.direction?n.setDirection?n.setDirection("sendonly"):n.direction="sendonly":"recvonly"===n.direction&&(n.setDirection?n.setDirection("inactive"):n.direction="inactive"):!0!==e.offerToReceiveAudio||n||r.addTransceiver("audio"),void 0!==e.offerToReceiveVideo&&(e.offerToReceiveVideo=!!e.offerToReceiveVideo);var i=r.getTransceivers().find(function(e){return e.sender.track&&"video"===e.sender.track.kind});!1===e.offerToReceiveVideo&&i?"sendrecv"===i.direction?i.setDirection("sendonly"):"recvonly"===i.direction&&i.setDirection("inactive"):!0!==e.offerToReceiveVideo||i||r.addTransceiver("video")}return t.apply(r,arguments)}}}},{"../utils":26}],17:[function(e,t,r){"use strict";var n=e("../utils.js"),i=n.log;function o(e,t,r){var n=r?"outbound-rtp":"inbound-rtp",i=new Map;if(null===t)return i;var o=[];return e.forEach(function(e){"track"===e.type&&e.trackIdentifier===t.id&&o.push(e)}),o.forEach(function(t){e.forEach(function(r){r.type===n&&r.trackId===t.id&&function e(t,r,n){r&&!n.has(r.id)&&(n.set(r.id,r),Object.keys(r).forEach(function(i){i.endsWith("Id")?e(t,t.get(r[i]),n):i.endsWith("Ids")&&r[i].forEach(function(r){e(t,t.get(r),n)})}))}(e,r,i)})}),i}t.exports={shimGetUserMedia:e("./getusermedia"),shimMediaStream:function(e){e.MediaStream=e.MediaStream||e.webkitMediaStream},shimOnTrack:function(e){if("object"!=typeof e||!e.RTCPeerConnection||"ontrack"in e.RTCPeerConnection.prototype)n.wrapPeerConnectionEvent(e,"track",function(e){return e.transceiver||Object.defineProperty(e,"transceiver",{value:{receiver:e.receiver}}),e});else{Object.defineProperty(e.RTCPeerConnection.prototype,"ontrack",{get:function(){return this._ontrack},set:function(e){this._ontrack&&this.removeEventListener("track",this._ontrack),this.addEventListener("track",this._ontrack=e)},enumerable:!0,configurable:!0});var t=e.RTCPeerConnection.prototype.setRemoteDescription;e.RTCPeerConnection.prototype.setRemoteDescription=function(){var r=this;return r._ontrackpoly||(r._ontrackpoly=function(t){t.stream.addEventListener("addtrack",function(n){var i;i=e.RTCPeerConnection.prototype.getReceivers?r.getReceivers().find(function(e){return e.track&&e.track.id===n.track.id}):{track:n.track};var o=new Event("track");o.track=n.track,o.receiver=i,o.transceiver={receiver:i},o.streams=[t.stream],r.dispatchEvent(o)}),t.stream.getTracks().forEach(function(n){var i;i=e.RTCPeerConnection.prototype.getReceivers?r.getReceivers().find(function(e){return e.track&&e.track.id===n.id}):{track:n};var o=new Event("track");o.track=n,o.receiver=i,o.transceiver={receiver:i},o.streams=[t.stream],r.dispatchEvent(o)})},r.addEventListener("addstream",r._ontrackpoly)),t.apply(r,arguments)}}},shimGetSendersWithDtmf:function(e){if("object"==typeof e&&e.RTCPeerConnection&&!("getSenders"in e.RTCPeerConnection.prototype)&&"createDTMFSender"in e.RTCPeerConnection.prototype){var t=function(e,t){return{track:t,get dtmf(){return void 0===this._dtmf&&("audio"===t.kind?this._dtmf=e.createDTMFSender(t):this._dtmf=null),this._dtmf},_pc:e}};if(!e.RTCPeerConnection.prototype.getSenders){e.RTCPeerConnection.prototype.getSenders=function(){return this._senders=this._senders||[],this._senders.slice()};var r=e.RTCPeerConnection.prototype.addTrack;e.RTCPeerConnection.prototype.addTrack=function(e,n){var i=r.apply(this,arguments);return i||(i=t(this,e),this._senders.push(i)),i};var n=e.RTCPeerConnection.prototype.removeTrack;e.RTCPeerConnection.prototype.removeTrack=function(e){n.apply(this,arguments);var t=this._senders.indexOf(e);-1!==t&&this._senders.splice(t,1)}}var i=e.RTCPeerConnection.prototype.addStream;e.RTCPeerConnection.prototype.addStream=function(e){var r=this;r._senders=r._senders||[],i.apply(r,[e]),e.getTracks().forEach(function(e){r._senders.push(t(r,e))})};var o=e.RTCPeerConnection.prototype.removeStream;e.RTCPeerConnection.prototype.removeStream=function(e){var t=this;t._senders=t._senders||[],o.apply(t,[e]),e.getTracks().forEach(function(e){var r=t._senders.find(function(t){return t.track===e});r&&t._senders.splice(t._senders.indexOf(r),1)})}}else if("object"==typeof e&&e.RTCPeerConnection&&"getSenders"in e.RTCPeerConnection.prototype&&"createDTMFSender"in e.RTCPeerConnection.prototype&&e.RTCRtpSender&&!("dtmf"in e.RTCRtpSender.prototype)){var a=e.RTCPeerConnection.prototype.getSenders;e.RTCPeerConnection.prototype.getSenders=function(){var e=this,t=a.apply(e,[]);return t.forEach(function(t){t._pc=e}),t},Object.defineProperty(e.RTCRtpSender.prototype,"dtmf",{get:function(){return void 0===this._dtmf&&("audio"===this.track.kind?this._dtmf=this._pc.createDTMFSender(this.track):this._dtmf=null),this._dtmf}})}},shimSenderReceiverGetStats:function(e){if("object"==typeof e&&e.RTCPeerConnection&&e.RTCRtpSender&&e.RTCRtpReceiver){if(!("getStats"in e.RTCRtpSender.prototype)){var t=e.RTCPeerConnection.prototype.getSenders;t&&(e.RTCPeerConnection.prototype.getSenders=function(){var e=this,r=t.apply(e,[]);return r.forEach(function(t){t._pc=e}),r});var r=e.RTCPeerConnection.prototype.addTrack;r&&(e.RTCPeerConnection.prototype.addTrack=function(){var e=r.apply(this,arguments);return e._pc=this,e}),e.RTCRtpSender.prototype.getStats=function(){var e=this;return this._pc.getStats().then(function(t){return o(t,e.track,!0)})}}if(!("getStats"in e.RTCRtpReceiver.prototype)){var i=e.RTCPeerConnection.prototype.getReceivers;i&&(e.RTCPeerConnection.prototype.getReceivers=function(){var e=this,t=i.apply(e,[]);return t.forEach(function(t){t._pc=e}),t}),n.wrapPeerConnectionEvent(e,"track",function(e){return e.receiver._pc=e.srcElement,e}),e.RTCRtpReceiver.prototype.getStats=function(){var e=this;return this._pc.getStats().then(function(t){return o(t,e.track,!1)})}}if("getStats"in e.RTCRtpSender.prototype&&"getStats"in e.RTCRtpReceiver.prototype){var a=e.RTCPeerConnection.prototype.getStats;e.RTCPeerConnection.prototype.getStats=function(){if(arguments.length>0&&arguments[0]instanceof e.MediaStreamTrack){var t,r,n,i=arguments[0];return this.getSenders().forEach(function(e){e.track===i&&(t?n=!0:t=e)}),this.getReceivers().forEach(function(e){return e.track===i&&(r?n=!0:r=e),e.track===i}),n||t&&r?Promise.reject(new DOMException("There are more than one sender or receiver for the track.","InvalidAccessError")):t?t.getStats():r?r.getStats():Promise.reject(new DOMException("There is no sender or receiver for the track.","InvalidAccessError"))}return a.apply(this,arguments)}}}},shimSourceObject:function(e){var t=e&&e.URL;"object"==typeof e&&(!e.HTMLMediaElement||"srcObject"in e.HTMLMediaElement.prototype||Object.defineProperty(e.HTMLMediaElement.prototype,"srcObject",{get:function(){return this._srcObject},set:function(e){var r=this;this._srcObject=e,this.src&&t.revokeObjectURL(this.src),e?(this.src=t.createObjectURL(e),e.addEventListener("addtrack",function(){r.src&&t.revokeObjectURL(r.src),r.src=t.createObjectURL(e)}),e.addEventListener("removetrack",function(){r.src&&t.revokeObjectURL(r.src),r.src=t.createObjectURL(e)})):this.src=""}}))},shimAddTrackRemoveTrackWithNative:function(e){e.RTCPeerConnection.prototype.getLocalStreams=function(){var e=this;return this._shimmedLocalStreams=this._shimmedLocalStreams||{},Object.keys(this._shimmedLocalStreams).map(function(t){return e._shimmedLocalStreams[t][0]})};var t=e.RTCPeerConnection.prototype.addTrack;e.RTCPeerConnection.prototype.addTrack=function(e,r){if(!r)return t.apply(this,arguments);this._shimmedLocalStreams=this._shimmedLocalStreams||{};var n=t.apply(this,arguments);return this._shimmedLocalStreams[r.id]?-1===this._shimmedLocalStreams[r.id].indexOf(n)&&this._shimmedLocalStreams[r.id].push(n):this._shimmedLocalStreams[r.id]=[r,n],n};var r=e.RTCPeerConnection.prototype.addStream;e.RTCPeerConnection.prototype.addStream=function(e){var t=this;this._shimmedLocalStreams=this._shimmedLocalStreams||{},e.getTracks().forEach(function(e){if(t.getSenders().find(function(t){return t.track===e}))throw new DOMException("Track already exists.","InvalidAccessError")});var n=t.getSenders();r.apply(this,arguments);var i=t.getSenders().filter(function(e){return-1===n.indexOf(e)});this._shimmedLocalStreams[e.id]=[e].concat(i)};var n=e.RTCPeerConnection.prototype.removeStream;e.RTCPeerConnection.prototype.removeStream=function(e){return this._shimmedLocalStreams=this._shimmedLocalStreams||{},delete this._shimmedLocalStreams[e.id],n.apply(this,arguments)};var i=e.RTCPeerConnection.prototype.removeTrack;e.RTCPeerConnection.prototype.removeTrack=function(e){var t=this;return this._shimmedLocalStreams=this._shimmedLocalStreams||{},e&&Object.keys(this._shimmedLocalStreams).forEach(function(r){var n=t._shimmedLocalStreams[r].indexOf(e);-1!==n&&t._shimmedLocalStreams[r].splice(n,1),1===t._shimmedLocalStreams[r].length&&delete t._shimmedLocalStreams[r]}),i.apply(this,arguments)}},shimAddTrackRemoveTrack:function(e){var t=n.detectBrowser(e);if(e.RTCPeerConnection.prototype.addTrack&&t.version>=65)return this.shimAddTrackRemoveTrackWithNative(e);var r=e.RTCPeerConnection.prototype.getLocalStreams;e.RTCPeerConnection.prototype.getLocalStreams=function(){var e=this,t=r.apply(this);return e._reverseStreams=e._reverseStreams||{},t.map(function(t){return e._reverseStreams[t.id]})};var i=e.RTCPeerConnection.prototype.addStream;e.RTCPeerConnection.prototype.addStream=function(t){var r=this;if(r._streams=r._streams||{},r._reverseStreams=r._reverseStreams||{},t.getTracks().forEach(function(e){if(r.getSenders().find(function(t){return t.track===e}))throw new DOMException("Track already exists.","InvalidAccessError")}),!r._reverseStreams[t.id]){var n=new e.MediaStream(t.getTracks());r._streams[t.id]=n,r._reverseStreams[n.id]=t,t=n}i.apply(r,[t])};var o=e.RTCPeerConnection.prototype.removeStream;function a(e,t){var r=t.sdp;return Object.keys(e._reverseStreams||[]).forEach(function(t){var n=e._reverseStreams[t],i=e._streams[n.id];r=r.replace(new RegExp(i.id,"g"),n.id)}),new RTCSessionDescription({type:t.type,sdp:r})}e.RTCPeerConnection.prototype.removeStream=function(e){var t=this;t._streams=t._streams||{},t._reverseStreams=t._reverseStreams||{},o.apply(t,[t._streams[e.id]||e]),delete t._reverseStreams[t._streams[e.id]?t._streams[e.id].id:e.id],delete t._streams[e.id]},e.RTCPeerConnection.prototype.addTrack=function(t,r){var n=this;if("closed"===n.signalingState)throw new DOMException("The RTCPeerConnection's signalingState is 'closed'.","InvalidStateError");var i=[].slice.call(arguments,1);if(1!==i.length||!i[0].getTracks().find(function(e){return e===t}))throw new DOMException("The adapter.js addTrack polyfill only supports a single  stream which is associated with the specified track.","NotSupportedError");if(n.getSenders().find(function(e){return e.track===t}))throw new DOMException("Track already exists.","InvalidAccessError");n._streams=n._streams||{},n._reverseStreams=n._reverseStreams||{};var o=n._streams[r.id];if(o)o.addTrack(t),Promise.resolve().then(function(){n.dispatchEvent(new Event("negotiationneeded"))});else{var a=new e.MediaStream([t]);n._streams[r.id]=a,n._reverseStreams[a.id]=r,n.addStream(a)}return n.getSenders().find(function(e){return e.track===t})},["createOffer","createAnswer"].forEach(function(t){var r=e.RTCPeerConnection.prototype[t];e.RTCPeerConnection.prototype[t]=function(){var e=this,t=arguments;return arguments.length&&"function"==typeof arguments[0]?r.apply(e,[function(r){var n=a(e,r);t[0].apply(null,[n])},function(e){t[1]&&t[1].apply(null,e)},arguments[2]]):r.apply(e,arguments).then(function(t){return a(e,t)})}});var s=e.RTCPeerConnection.prototype.setLocalDescription;e.RTCPeerConnection.prototype.setLocalDescription=function(){return arguments.length&&arguments[0].type?(arguments[0]=function(e,t){var r=t.sdp;return Object.keys(e._reverseStreams||[]).forEach(function(t){var n=e._reverseStreams[t],i=e._streams[n.id];r=r.replace(new RegExp(n.id,"g"),i.id)}),new RTCSessionDescription({type:t.type,sdp:r})}(this,arguments[0]),s.apply(this,arguments)):s.apply(this,arguments)};var u=Object.getOwnPropertyDescriptor(e.RTCPeerConnection.prototype,"localDescription");Object.defineProperty(e.RTCPeerConnection.prototype,"localDescription",{get:function(){var e=u.get.apply(this);return""===e.type?e:a(this,e)}}),e.RTCPeerConnection.prototype.removeTrack=function(e){var t,r=this;if("closed"===r.signalingState)throw new DOMException("The RTCPeerConnection's signalingState is 'closed'.","InvalidStateError");if(!e._pc)throw new DOMException("Argument 1 of RTCPeerConnection.removeTrack does not implement interface RTCRtpSender.","TypeError");if(!(e._pc===r))throw new DOMException("Sender was not created by this connection.","InvalidAccessError");r._streams=r._streams||{},Object.keys(r._streams).forEach(function(n){r._streams[n].getTracks().find(function(t){return e.track===t})&&(t=r._streams[n])}),t&&(1===t.getTracks().length?r.removeStream(r._reverseStreams[t.id]):t.removeTrack(e.track),r.dispatchEvent(new Event("negotiationneeded")))}},shimPeerConnection:function(e){var t=n.detectBrowser(e);!e.RTCPeerConnection&&e.webkitRTCPeerConnection&&(e.RTCPeerConnection=function(t,r){return i("PeerConnection"),t&&t.iceTransportPolicy&&(t.iceTransports=t.iceTransportPolicy),new e.webkitRTCPeerConnection(t,r)},e.RTCPeerConnection.prototype=e.webkitRTCPeerConnection.prototype,e.webkitRTCPeerConnection.generateCertificate&&Object.defineProperty(e.RTCPeerConnection,"generateCertificate",{get:function(){return e.webkitRTCPeerConnection.generateCertificate}}));var r=e.RTCPeerConnection.prototype.getStats;e.RTCPeerConnection.prototype.getStats=function(e,t,n){var i=this,o=arguments;if(arguments.length>0&&"function"==typeof e)return r.apply(this,arguments);if(0===r.length&&(0===arguments.length||"function"!=typeof arguments[0]))return r.apply(this,[]);var a=function(e){var t={};return e.result().forEach(function(e){var r={id:e.id,timestamp:e.timestamp,type:{localcandidate:"local-candidate",remotecandidate:"remote-candidate"}[e.type]||e.type};e.names().forEach(function(t){r[t]=e.stat(t)}),t[r.id]=r}),t},s=function(e){return new Map(Object.keys(e).map(function(t){return[t,e[t]]}))};if(arguments.length>=2){return r.apply(this,[function(e){o[1](s(a(e)))},arguments[0]])}return new Promise(function(e,t){r.apply(i,[function(t){e(s(a(t)))},t])}).then(t,n)},t.version<51&&["setLocalDescription","setRemoteDescription","addIceCandidate"].forEach(function(t){var r=e.RTCPeerConnection.prototype[t];e.RTCPeerConnection.prototype[t]=function(){var e=arguments,t=this,n=new Promise(function(n,i){r.apply(t,[e[0],n,i])});return e.length<2?n:n.then(function(){e[1].apply(null,[])},function(t){e.length>=3&&e[2].apply(null,[t])})}}),t.version<52&&["createOffer","createAnswer"].forEach(function(t){var r=e.RTCPeerConnection.prototype[t];e.RTCPeerConnection.prototype[t]=function(){var e=this;if(arguments.length<1||1===arguments.length&&"object"==typeof arguments[0]){var t=1===arguments.length?arguments[0]:void 0;return new Promise(function(n,i){r.apply(e,[n,i,t])})}return r.apply(this,arguments)}}),["setLocalDescription","setRemoteDescription","addIceCandidate"].forEach(function(t){var r=e.RTCPeerConnection.prototype[t];e.RTCPeerConnection.prototype[t]=function(){return arguments[0]=new("addIceCandidate"===t?e.RTCIceCandidate:e.RTCSessionDescription)(arguments[0]),r.apply(this,arguments)}});var o=e.RTCPeerConnection.prototype.addIceCandidate;e.RTCPeerConnection.prototype.addIceCandidate=function(){return arguments[0]?o.apply(this,arguments):(arguments[1]&&arguments[1].apply(null),Promise.resolve())}},fixNegotiationNeeded:function(e){n.wrapPeerConnectionEvent(e,"negotiationneeded",function(e){if("stable"===e.target.signalingState)return e})},shimGetDisplayMedia:function(e,t){"getDisplayMedia"in e.navigator||("function"==typeof t?navigator.getDisplayMedia=function(e){return t(e).then(function(t){return e.video={mandatory:{chromeMediaSource:"desktop",chromeMediaSourceId:t,maxFrameRate:e.video.frameRate||3}},e.video&&(e.video.height&&(e.video.maxWidth=e.video.width),e.video.width&&(e.video.maxHeight=e.video.height)),navigator.mediaDevices.getUserMedia(e)})}:console.error("shimGetDisplayMedia: getSourceId argument is not a function"))}}},{"../utils.js":26,"./getusermedia":18}],23:[function(e,t,r){"use strict";var n=e("../utils");t.exports={shimGetUserMedia:e("./getusermedia"),shimOnTrack:function(e){"object"!=typeof e||!e.RTCPeerConnection||"ontrack"in e.RTCPeerConnection.prototype||Object.defineProperty(e.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 r=new Event("track");r.track=t,r.receiver={track:t},r.transceiver={receiver:r.receiver},r.streams=[e.stream],this.dispatchEvent(r)}.bind(this))}.bind(this))},enumerable:!0,configurable:!0}),"object"==typeof e&&e.RTCTrackEvent&&"receiver"in e.RTCTrackEvent.prototype&&!("transceiver"in e.RTCTrackEvent.prototype)&&Object.defineProperty(e.RTCTrackEvent.prototype,"transceiver",{get:function(){return{receiver:this.receiver}}})},shimSourceObject:function(e){"object"==typeof e&&(!e.HTMLMediaElement||"srcObject"in e.HTMLMediaElement.prototype||Object.defineProperty(e.HTMLMediaElement.prototype,"srcObject",{get:function(){return this.mozSrcObject},set:function(e){this.mozSrcObject=e}}))},shimPeerConnection:function(e){var t=n.detectBrowser(e);if("object"==typeof e&&(e.RTCPeerConnection||e.mozRTCPeerConnection)){e.RTCPeerConnection||(e.RTCPeerConnection=function(r,n){if(t.version<38&&r&&r.iceServers){for(var i=[],o=0;o<r.iceServers.length;o++){var a=r.iceServers[o];if(a.hasOwnProperty("urls"))for(var s=0;s<a.urls.length;s++){var u={url:a.urls[s]};0===a.urls[s].indexOf("turn")&&(u.username=a.username,u.credential=a.credential),i.push(u)}else i.push(r.iceServers[o])}r.iceServers=i}return new e.mozRTCPeerConnection(r,n)},e.RTCPeerConnection.prototype=e.mozRTCPeerConnection.prototype,e.mozRTCPeerConnection.generateCertificate&&Object.defineProperty(e.RTCPeerConnection,"generateCertificate",{get:function(){return e.mozRTCPeerConnection.generateCertificate}}),e.RTCSessionDescription=e.mozRTCSessionDescription,e.RTCIceCandidate=e.mozRTCIceCandidate),["setLocalDescription","setRemoteDescription","addIceCandidate"].forEach(function(t){var r=e.RTCPeerConnection.prototype[t];e.RTCPeerConnection.prototype[t]=function(){return arguments[0]=new("addIceCandidate"===t?e.RTCIceCandidate:e.RTCSessionDescription)(arguments[0]),r.apply(this,arguments)}});var r=e.RTCPeerConnection.prototype.addIceCandidate;e.RTCPeerConnection.prototype.addIceCandidate=function(){return arguments[0]?r.apply(this,arguments):(arguments[1]&&arguments[1].apply(null),Promise.resolve())};var i={inboundrtp:"inbound-rtp",outboundrtp:"outbound-rtp",candidatepair:"candidate-pair",localcandidate:"local-candidate",remotecandidate:"remote-candidate"},o=e.RTCPeerConnection.prototype.getStats;e.RTCPeerConnection.prototype.getStats=function(e,r,n){return o.apply(this,[e||null]).then(function(e){if(t.version<48&&(e=function(e){var t=new Map;return Object.keys(e).forEach(function(r){t.set(r,e[r]),t[r]=e[r]}),t}(e)),t.version<53&&!r)try{e.forEach(function(e){e.type=i[e.type]||e.type})}catch(t){if("TypeError"!==t.name)throw t;e.forEach(function(t,r){e.set(r,Object.assign({},t,{type:i[t.type]||t.type}))})}return e}).then(r,n)}}},shimSenderGetStats:function(e){if("object"==typeof e&&e.RTCPeerConnection&&e.RTCRtpSender&&!(e.RTCRtpSender&&"getStats"in e.RTCRtpSender.prototype)){var t=e.RTCPeerConnection.prototype.getSenders;t&&(e.RTCPeerConnection.prototype.getSenders=function(){var e=this,r=t.apply(e,[]);return r.forEach(function(t){t._pc=e}),r});var r=e.RTCPeerConnection.prototype.addTrack;r&&(e.RTCPeerConnection.prototype.addTrack=function(){var e=r.apply(this,arguments);return e._pc=this,e}),e.RTCRtpSender.prototype.getStats=function(){return this.track?this._pc.getStats(this.track):Promise.resolve(new Map)}}},shimReceiverGetStats:function(e){if("object"==typeof e&&e.RTCPeerConnection&&e.RTCRtpSender&&!(e.RTCRtpSender&&"getStats"in e.RTCRtpReceiver.prototype)){var t=e.RTCPeerConnection.prototype.getReceivers;t&&(e.RTCPeerConnection.prototype.getReceivers=function(){var e=this,r=t.apply(e,[]);return r.forEach(function(t){t._pc=e}),r}),n.wrapPeerConnectionEvent(e,"track",function(e){return e.receiver._pc=e.srcElement,e}),e.RTCRtpReceiver.prototype.getStats=function(){return this._pc.getStats(this.track)}}},shimRemoveStream:function(e){!e.RTCPeerConnection||"removeStream"in e.RTCPeerConnection.prototype||(e.RTCPeerConnection.prototype.removeStream=function(e){var t=this;n.deprecated("removeStream","removeTrack"),this.getSenders().forEach(function(r){r.track&&-1!==e.getTracks().indexOf(r.track)&&t.removeTrack(r)})})},shimRTCDataChannel:function(e){e.DataChannel&&!e.RTCDataChannel&&(e.RTCDataChannel=e.DataChannel)},shimGetDisplayMedia:function(e,t){"getDisplayMedia"in e.navigator||(navigator.getDisplayMedia=function(e){if(!e||!e.video){var r=new DOMException("getDisplayMedia without video constraints is undefined");return r.name="NotFoundError",r.code=8,Promise.reject(r)}return!0===e.video?e.video={mediaSource:t}:e.video.mediaSource=t,navigator.mediaDevices.getUserMedia(e)})}}},{"../utils":26,"./getusermedia":24}],19:[function(e,t,r){"use strict";var n=e("sdp"),i=e("./utils");t.exports={shimRTCIceCandidate:function(e){if(e.RTCIceCandidate&&!(e.RTCIceCandidate&&"foundation"in e.RTCIceCandidate.prototype)){var t=e.RTCIceCandidate;e.RTCIceCandidate=function(e){if("object"==typeof e&&e.candidate&&0===e.candidate.indexOf("a=")&&((e=JSON.parse(JSON.stringify(e))).candidate=e.candidate.substr(2)),e.candidate&&e.candidate.length){var r=new t(e),i=n.parseCandidate(e.candidate),o=Object.assign(r,i);return o.toJSON=function(){return{candidate:o.candidate,sdpMid:o.sdpMid,sdpMLineIndex:o.sdpMLineIndex,usernameFragment:o.usernameFragment}},o}return new t(e)},e.RTCIceCandidate.prototype=t.prototype,i.wrapPeerConnectionEvent(e,"icecandidate",function(t){return t.candidate&&Object.defineProperty(t,"candidate",{value:new e.RTCIceCandidate(t.candidate),writable:"false"}),t})}},shimCreateObjectURL:function(e){var t=e&&e.URL;if("object"==typeof e&&e.HTMLMediaElement&&"srcObject"in e.HTMLMediaElement.prototype&&t.createObjectURL&&t.revokeObjectURL){var r=t.createObjectURL.bind(t),n=t.revokeObjectURL.bind(t),o=new Map,a=0;t.createObjectURL=function(e){if("getTracks"in e){var t="polyblob:"+ ++a;return o.set(t,e),i.deprecated("URL.createObjectURL(stream)","elem.srcObject = stream"),t}return r(e)},t.revokeObjectURL=function(e){n(e),o.delete(e)};var s=Object.getOwnPropertyDescriptor(e.HTMLMediaElement.prototype,"src");Object.defineProperty(e.HTMLMediaElement.prototype,"src",{get:function(){return s.get.apply(this)},set:function(e){return this.srcObject=o.get(e)||null,s.set.apply(this,[e])}});var u=e.HTMLMediaElement.prototype.setAttribute;e.HTMLMediaElement.prototype.setAttribute=function(){return 2===arguments.length&&"src"===(""+arguments[0]).toLowerCase()&&(this.srcObject=o.get(arguments[1])||null),u.apply(this,arguments)}}},shimMaxMessageSize:function(e){if(!e.RTCSctpTransport&&e.RTCPeerConnection){var t=i.detectBrowser(e);"sctp"in e.RTCPeerConnection.prototype||Object.defineProperty(e.RTCPeerConnection.prototype,"sctp",{get:function(){return void 0===this._sctp?null:this._sctp}});var r=e.RTCPeerConnection.prototype.setRemoteDescription;e.RTCPeerConnection.prototype.setRemoteDescription=function(){var e,i,o,a;if(this._sctp=null,o=arguments[0],(a=n.splitSections(o.sdp)).shift(),a.some(function(e){var t=n.parseMLine(e);return t&&"application"===t.kind&&-1!==t.protocol.indexOf("SCTP")})){var s,u=function(e){var t=e.sdp.match(/mozilla...THIS_IS_SDPARTA-(\d+)/);if(null===t||t.length<2)return-1;var r=parseInt(t[1],10);return r!=r?-1:r}(arguments[0]),c=(e=u,i=65536,"firefox"===t.browser&&(i=t.version<57?-1===e?16384:2147483637:t.version<60?57===t.version?65535:65536:2147483637),i),f=function(e,r){var i=65536;"firefox"===t.browser&&57===t.version&&(i=65535);var o=n.matchPrefix(e.sdp,"a=max-message-size:");return o.length>0?i=parseInt(o[0].substr(19),10):"firefox"===t.browser&&-1!==r&&(i=2147483637),i}(arguments[0],u);s=0===c&&0===f?Number.POSITIVE_INFINITY:0===c||0===f?Math.max(c,f):Math.min(c,f);var l={};Object.defineProperty(l,"maxMessageSize",{get:function(){return s}}),this._sctp=l}return r.apply(this,arguments)}}},shimSendThrowTypeError:function(e){if(e.RTCPeerConnection&&"createDataChannel"in e.RTCPeerConnection.prototype){var t=e.RTCPeerConnection.prototype.createDataChannel;e.RTCPeerConnection.prototype.createDataChannel=function(){var e=t.apply(this,arguments);return r(e,this),e},i.wrapPeerConnectionEvent(e,"datachannel",function(e){return r(e.channel,e.target),e})}function r(e,t){var r=e.send;e.send=function(){var n=arguments[0],i=n.length||n.size||n.byteLength;if("open"===e.readyState&&t.sctp&&i>t.sctp.maxMessageSize)throw new TypeError("Message too large (can send a maximum of "+t.sctp.maxMessageSize+" bytes)");return r.apply(e,arguments)}}}}},{"./utils":26,sdp:10}],20:[function(e,t,r){"use strict";var n=e("../utils"),i=e("./filtericeservers"),o=e("rtcpeerconnection-shim");t.exports={shimGetUserMedia:e("./getusermedia"),shimPeerConnection:function(e){var t=n.detectBrowser(e);if(e.RTCIceGatherer&&(e.RTCIceCandidate||(e.RTCIceCandidate=function(e){return e}),e.RTCSessionDescription||(e.RTCSessionDescription=function(e){return e}),t.version<15025)){var r=Object.getOwnPropertyDescriptor(e.MediaStreamTrack.prototype,"enabled");Object.defineProperty(e.MediaStreamTrack.prototype,"enabled",{set:function(e){r.set.call(this,e);var t=new Event("enabled");t.enabled=e,this.dispatchEvent(t)}})}!e.RTCRtpSender||"dtmf"in e.RTCRtpSender.prototype||Object.defineProperty(e.RTCRtpSender.prototype,"dtmf",{get:function(){return void 0===this._dtmf&&("audio"===this.track.kind?this._dtmf=new e.RTCDtmfSender(this):"video"===this.track.kind&&(this._dtmf=null)),this._dtmf}}),e.RTCDtmfSender&&!e.RTCDTMFSender&&(e.RTCDTMFSender=e.RTCDtmfSender);var a=o(e,t.version);e.RTCPeerConnection=function(e){return e&&e.iceServers&&(e.iceServers=i(e.iceServers)),new a(e)},e.RTCPeerConnection.prototype=a.prototype},shimReplaceTrack:function(e){!e.RTCRtpSender||"replaceTrack"in e.RTCRtpSender.prototype||(e.RTCRtpSender.prototype.replaceTrack=e.RTCRtpSender.prototype.setTrack)}}},{"../utils":26,"./filtericeservers":21,"./getusermedia":22,"rtcpeerconnection-shim":9}],18:[function(e,t,r){"use strict";var n=e("../utils.js"),i=n.log;t.exports=function(e){var t=n.detectBrowser(e),r=e&&e.navigator,o=function(e){if("object"!=typeof e||e.mandatory||e.optional)return e;var t={};return Object.keys(e).forEach(function(r){if("require"!==r&&"advanced"!==r&&"mediaSource"!==r){var n="object"==typeof e[r]?e[r]:{ideal:e[r]};void 0!==n.exact&&"number"==typeof n.exact&&(n.min=n.max=n.exact);var i=function(e,t){return e?e+t.charAt(0).toUpperCase()+t.slice(1):"deviceId"===t?"sourceId":t};if(void 0!==n.ideal){t.optional=t.optional||[];var o={};"number"==typeof n.ideal?(o[i("min",r)]=n.ideal,t.optional.push(o),(o={})[i("max",r)]=n.ideal,t.optional.push(o)):(o[i("",r)]=n.ideal,t.optional.push(o))}void 0!==n.exact&&"number"!=typeof n.exact?(t.mandatory=t.mandatory||{},t.mandatory[i("",r)]=n.exact):["min","max"].forEach(function(e){void 0!==n[e]&&(t.mandatory=t.mandatory||{},t.mandatory[i(e,r)]=n[e])})}}),e.advanced&&(t.optional=(t.optional||[]).concat(e.advanced)),t},a=function(e,n){if(t.version>=61)return n(e);if((e=JSON.parse(JSON.stringify(e)))&&"object"==typeof e.audio){var a=function(e,t,r){t in e&&!(r in e)&&(e[r]=e[t],delete e[t])};a((e=JSON.parse(JSON.stringify(e))).audio,"autoGainControl","googAutoGainControl"),a(e.audio,"noiseSuppression","googNoiseSuppression"),e.audio=o(e.audio)}if(e&&"object"==typeof e.video){var s=e.video.facingMode;s=s&&("object"==typeof s?s:{ideal:s});var u,c=t.version<66;if(s&&("user"===s.exact||"environment"===s.exact||"user"===s.ideal||"environment"===s.ideal)&&(!r.mediaDevices.getSupportedConstraints||!r.mediaDevices.getSupportedConstraints().facingMode||c))if(delete e.video.facingMode,"environment"===s.exact||"environment"===s.ideal?u=["back","rear"]:"user"!==s.exact&&"user"!==s.ideal||(u=["front"]),u)return r.mediaDevices.enumerateDevices().then(function(t){var r=(t=t.filter(function(e){return"videoinput"===e.kind})).find(function(e){return u.some(function(t){return-1!==e.label.toLowerCase().indexOf(t)})});return!r&&t.length&&-1!==u.indexOf("back")&&(r=t[t.length-1]),r&&(e.video.deviceId=s.exact?{exact:r.deviceId}:{ideal:r.deviceId}),e.video=o(e.video),i("chrome: "+JSON.stringify(e)),n(e)});e.video=o(e.video)}return i("chrome: "+JSON.stringify(e)),n(e)},s=function(e){return t.version>=64?e:{name:{PermissionDeniedError:"NotAllowedError",PermissionDismissedError:"NotAllowedError",InvalidStateError:"NotAllowedError",DevicesNotFoundError:"NotFoundError",ConstraintNotSatisfiedError:"OverconstrainedError",TrackStartError:"NotReadableError",MediaDeviceFailedDueToShutdown:"NotAllowedError",MediaDeviceKillSwitchOn:"NotAllowedError",TabCaptureError:"AbortError",ScreenCaptureError:"AbortError",DeviceCaptureError:"AbortError"}[e.name]||e.name,message:e.message,constraint:e.constraint||e.constraintName,toString:function(){return this.name+(this.message&&": ")+this.message}}};r.getUserMedia=function(e,t,n){a(e,function(e){r.webkitGetUserMedia(e,t,function(e){n&&n(s(e))})})};var u=function(e){return new Promise(function(t,n){r.getUserMedia(e,t,n)})};if(r.mediaDevices||(r.mediaDevices={getUserMedia:u,enumerateDevices:function(){return new Promise(function(t){var r={audio:"audioinput",video:"videoinput"};return e.MediaStreamTrack.getSources(function(e){t(e.map(function(e){return{label:e.label,kind:r[e.kind],deviceId:e.id,groupId:""}}))})})},getSupportedConstraints:function(){return{deviceId:!0,echoCancellation:!0,facingMode:!0,frameRate:!0,height:!0,width:!0}}}),r.mediaDevices.getUserMedia){var c=r.mediaDevices.getUserMedia.bind(r.mediaDevices);r.mediaDevices.getUserMedia=function(e){return a(e,function(e){return c(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(s(e))})})}}else r.mediaDevices.getUserMedia=function(e){return u(e)};void 0===r.mediaDevices.addEventListener&&(r.mediaDevices.addEventListener=function(){i("Dummy mediaDevices.addEventListener called.")}),void 0===r.mediaDevices.removeEventListener&&(r.mediaDevices.removeEventListener=function(){i("Dummy mediaDevices.removeEventListener called.")})}},{"../utils.js":26}],22:[function(e,t,r){"use strict";t.exports=function(e){var t=e&&e.navigator,r=t.mediaDevices.getUserMedia.bind(t.mediaDevices);t.mediaDevices.getUserMedia=function(e){return r(e).catch(function(e){return Promise.reject(function(e){return{name:{PermissionDeniedError:"NotAllowedError"}[e.name]||e.name,message:e.message,constraint:e.constraint,toString:function(){return this.name}}}(e))})}}},{}],21:[function(e,t,r){"use strict";var n=e("../utils");t.exports=function(e,t){var r=!1;return(e=JSON.parse(JSON.stringify(e))).filter(function(e){if(e&&(e.urls||e.url)){var i=e.urls||e.url;e.url&&!e.urls&&n.deprecated("RTCIceServer.url","RTCIceServer.urls");var o="string"==typeof i;return o&&(i=[i]),i=i.filter(function(e){return 0===e.indexOf("turn:")&&-1!==e.indexOf("transport=udp")&&-1===e.indexOf("turn:[")&&!r?(r=!0,!0):0===e.indexOf("stun:")&&t>=14393&&-1===e.indexOf("?transport=udp")}),delete e.url,e.urls=o?i[0]:i,!!i.length}})}},{"../utils":26}],24:[function(e,t,r){"use strict";var n=e("../utils"),i=n.log;t.exports=function(e){var t=n.detectBrowser(e),r=e&&e.navigator,o=e&&e.MediaStreamTrack,a=function(e){return{name:{InternalError:"NotReadableError",NotSupportedError:"TypeError",PermissionDeniedError:"NotAllowedError",SecurityError:"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}}},s=function(e,n,o){var s=function(e){if("object"!=typeof e||e.require)return e;var t=[];return Object.keys(e).forEach(function(r){if("require"!==r&&"advanced"!==r&&"mediaSource"!==r){var n=e[r]="object"==typeof e[r]?e[r]:{ideal:e[r]};if(void 0===n.min&&void 0===n.max&&void 0===n.exact||t.push(r),void 0!==n.exact&&("number"==typeof n.exact?n.min=n.max=n.exact:e[r]=n.exact,delete n.exact),void 0!==n.ideal){e.advanced=e.advanced||[];var i={};"number"==typeof n.ideal?i[r]={min:n.ideal,max:n.ideal}:i[r]=n.ideal,e.advanced.push(i),delete n.ideal,Object.keys(n).length||delete e[r]}}}),t.length&&(e.require=t),e};return e=JSON.parse(JSON.stringify(e)),t.version<38&&(i("spec: "+JSON.stringify(e)),e.audio&&(e.audio=s(e.audio)),e.video&&(e.video=s(e.video)),i("ff37: "+JSON.stringify(e))),r.mozGetUserMedia(e,n,function(e){o(a(e))})};if(r.mediaDevices||(r.mediaDevices={getUserMedia:function(e){return new Promise(function(t,r){s(e,t,r)})},addEventListener:function(){},removeEventListener:function(){}}),r.mediaDevices.enumerateDevices=r.mediaDevices.enumerateDevices||function(){return new Promise(function(e){e([{kind:"audioinput",deviceId:"default",label:"",groupId:""},{kind:"videoinput",deviceId:"default",label:"",groupId:""}])})},t.version<41){var u=r.mediaDevices.enumerateDevices.bind(r.mediaDevices);r.mediaDevices.enumerateDevices=function(){return u().then(void 0,function(e){if("NotFoundError"===e.name)return[];throw e})}}if(t.version<49){var c=r.mediaDevices.getUserMedia.bind(r.mediaDevices);r.mediaDevices.getUserMedia=function(e){return c(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("The object can not be found here.","NotFoundError");return t},function(e){return Promise.reject(a(e))})}}if(!(t.version>55&&"autoGainControl"in r.mediaDevices.getSupportedConstraints())){var f=function(e,t,r){t in e&&!(r in e)&&(e[r]=e[t],delete e[t])},l=r.mediaDevices.getUserMedia.bind(r.mediaDevices);if(r.mediaDevices.getUserMedia=function(e){return"object"==typeof e&&"object"==typeof e.audio&&(e=JSON.parse(JSON.stringify(e)),f(e.audio,"autoGainControl","mozAutoGainControl"),f(e.audio,"noiseSuppression","mozNoiseSuppression")),l(e)},o&&o.prototype.getSettings){var d=o.prototype.getSettings;o.prototype.getSettings=function(){var e=d.apply(this,arguments);return f(e,"mozAutoGainControl","autoGainControl"),f(e,"mozNoiseSuppression","noiseSuppression"),e}}if(o&&o.prototype.applyConstraints){var h=o.prototype.applyConstraints;o.prototype.applyConstraints=function(e){return"audio"===this.kind&&"object"==typeof e&&(e=JSON.parse(JSON.stringify(e)),f(e,"autoGainControl","mozAutoGainControl"),f(e,"noiseSuppression","mozNoiseSuppression")),h.apply(this,[e])}}}r.getUserMedia=function(e,i,o){if(t.version<44)return s(e,i,o);n.deprecated("navigator.getUserMedia","navigator.mediaDevices.getUserMedia"),r.mediaDevices.getUserMedia(e).then(i,o)}}},{"../utils":26}],27:[function(e,t,r){(function(e){"use strict";Object.defineProperty(r,"__esModule",{value:!0});class t extends Error{constructor(e,t){super(t?`Cannot access video stream (${e}: ${t.message}).`:`Cannot access video stream (${e}).`),this.type=e,this.inner=t}}class n{constructor(e,t){this.id=e,this.name=t,this._stream=null}async start(){return this._stream=await n.wrapErrors(async()=>await navigator.mediaDevices.getUserMedia({audio:!1,video:{deviceId:{exact:this.id}}})),this._stream}stop(){if(this._stream){for(let e of this._stream.getVideoTracks())e.stop();this._stream=null}}static async getCameras(){return await n.ensureAccess(),(await navigator.mediaDevices.enumerateDevices()).filter(e=>"videoinput"===e.kind).map(e=>new n(e.deviceId,function(e){return e.replace(/\s*\([0-9a-f]+(:[0-9a-f]+)?\)\s*$/,"")||e||null}(e.label)))}static async ensureAccess(){return await n.wrapErrors(async()=>{let e=await navigator.mediaDevices.getUserMedia({video:!0});for(let t of e.getVideoTracks())t.stop()})}static async wrapErrors(r){try{return await r()}catch(r){throw r.name&&"development"!==e.env.NODE_ENV?new t(r.name,r):r}}}r.default=n}).call(this,e("_process"))},{_process:7}],28:[function(e,t,r){(function(t){"use strict";Object.defineProperty(r,"__esModule",{value:!0});const n=e("./ZxingWrapper");r.default=class{constructor(e,t,r,i,o){this.scanPeriod=i,this.refractoryPeriod=o,this.captureImage=r,this._emitter=e,this._video=t,this._active=!1,this._reader=new n.default,this._canvas=document.createElement("canvas"),this._canvas.style.display="none",this._context=this._canvas.getContext("2d")}start(){this._active=!0,t.nextTick(()=>this.doScan(!0))}stop(){this._active=!1}async scan(){return await this.doScan()}async analyze(e){let t=e.getText(),r=null;if(this.captureImage){let{videoWidth:e,videoHeight:t}=this._video;this._canvas.width=e,this._canvas.height=t,this._context.drawImage(this._video,0,0,e,t),r=this._canvas.toDataURL("image/webp",.8)}return{content:t,image:r}}async doScan(e){if(!this.camera)throw new Error("No camera set");if(e&&!this._active)return null;let r=await this._reader.decodeFromVideoElement(this._video),n=await this.analyze(r);return n&&n.content!==this._lastResult&&this._active&&(this._lastResult=n.content,this._refractoryTimeout&&clearTimeout(this._refractoryTimeout),this._refractoryTimeout=setTimeout(()=>{this._refractoryTimeout=null,this._lastResult=null},this.refractoryPeriod),t.nextTick(()=>this._emitter.emit("scan",n.content,n.image))),e&&setTimeout(()=>this.doScan(!0),this.scanPeriod),n}}}).call(this,e("_process"))},{"./ZxingWrapper":30,_process:7}],30:[function(e,t,r){"use strict";Object.defineProperty(r,"__esModule",{value:!0});const n=e("@zxing/library");r.default=class{constructor(e){this._reader=new n.BrowserQRCodeReader(e)}reset(){let e=this._reader;e.videoElement=void 0,e.canvasElement=void 0,e.canvasElementContext=void 0,e.stop()}decodeFromVideoElement(e){return new Promise((t,r)=>{e.width&&e.height||(e.width=640,e.height=480),this.reset(),this._reader.videoElement=e,this._reader.decodeOnceWithDelay(t,r)})}}},{"@zxing/library":1}],29:[function(e,t,r){"use strict";Object.defineProperty(r,"__esModule",{value:!0});const n=e("./ScanProvider"),i=e("events"),o=e("visibilityjs"),a=e("fsm-as-promised");r.default=class extends i.EventEmitter{constructor(e){super(),this.video=this.configureVideo(e),this.mirror=!1!==e.mirror,this.backgroundScan=!1!==e.backgroundScan,this._continuous=!1!==e.continuous;let t=e.captureImage||!1,r=e.scanPeriod||500,i=e.refractoryPeriod||5e3;this._scanProvider=new n.default(this,this.video,t,r,i),this._fsm=this.createStateMachine(),e.camera&&(this.camera=e.camera),o.change((e,t)=>{"visible"===t?setTimeout(()=>{this._fsm.can("activate")&&this._fsm.activate()},0):!this.backgroundScan&&this._fsm.can("deactivate")&&this._fsm.deactivate()}),this.addListener("active",()=>{this.video.classList.remove("inactive"),this.video.classList.add("active")}),this.addListener("inactive",()=>{this.video.classList.remove("active"),this.video.classList.add("inactive")}),this.emit("inactive")}async scan(){return await this._scanProvider.scan()}async start(){this._fsm.can("start")?await this._fsm.start():(await this._fsm.stop(),await this._fsm.start())}async stop(){this._fsm.can("stop")&&await this._fsm.stop()}set camera(e){this._scanProvider.camera&&this._scanProvider.camera.stop(),this._scanProvider.camera=e}get camera(){return this._scanProvider.camera}set captureImage(e){this._scanProvider.captureImage=e}get captureImage(){return this._scanProvider.captureImage}set scanPeriod(e){this._scanProvider.scanPeriod=e}get scanPeriod(){return this._scanProvider.scanPeriod}set refractoryPeriod(e){this._scanProvider.refractoryPeriod=e}get refractoryPeriod(){return this._scanProvider.refractoryPeriod}set continuous(e){this._continuous=e,e&&"active"===this._fsm.current?this._scanProvider.start():this._scanProvider.stop()}get continuous(){return this._continuous}set mirror(e){this._mirror=e,e?(this.video.style.webkitTransform="scaleX(-1)",this.video.style.transform="scaleX(-1)",this.video.style.filter="FlipH"):(this.video.style.webkitTransform=null,this.video.style.transform=null,this.video.style.filter=null)}get mirror(){return this._mirror}async enableScan(){if(!this.camera)throw new Error("Camera is not defined.");let e=await this.camera.start();if(this.video.srcObject=e,this.video.play(),this._continuous){const e=()=>{this._scanProvider.start(),this.video.removeEventListener("playing",e)};this.video.addEventListener("playing",e)}}disableScan(){this.video.src="",this._scanProvider&&this._scanProvider.stop(),this.camera&&this.camera.stop()}configureVideo(e){if(e.video&&"VIDEO"!==e.video.tagName)throw new Error("Video must be a <video> element.");let t=e.video||document.createElement("video");return t.setAttribute("autoplay",""),t.setAttribute("playsinline",""),t.setAttribute("muted",""),t}createStateMachine(){return a.create({initial:"stopped",events:[{name:"start",from:"stopped",to:"started"},{name:"stop",from:["started","active","inactive"],to:"stopped"},{name:"activate",from:["started","inactive"],to:["active","inactive"],condition:function(){return"visible"===o.state()||this.backgroundScan?"active":"inactive"}},{name:"deactivate",from:["started","active"],to:"inactive"}],callbacks:{onenteractive:async()=>{await this.enableScan(),this.emit("active")},onleaveactive:async()=>{this.disableScan(),this.emit("inactive")},onenteredstarted:async()=>{await this._fsm.activate()}}})}}},{"./ScanProvider":28,events:3,"fsm-as-promised":5,visibilityjs:12}],31:[function(e,t,r){"use strict";Object.defineProperty(r,"__esModule",{value:!0}),e("regenerator-runtime/runtime"),e("webrtc-adapter");const n=e("./Camera");r.Camera=n.default;const i=e("./Scanner");r.Scanner=i.default},{"./Camera":27,"./Scanner":29,"regenerator-runtime/runtime":8,"webrtc-adapter":15}],32:[function(e,t,r){"use strict";Object.defineProperty(r,"__esModule",{value:!0});const n=e(".");window.Instascan=n},{".":31}]},{},[32]);