(function(e){if(typeof exports==="object"&&typeof module!=="undefined"){module.exports=e()}else if(typeof define==="function"&&define.amd){define([],e)}else{var t;if(typeof window!=="undefined"){t=window}else if(typeof global!=="undefined"){t=global}else if(typeof self!=="undefined"){t=self}else{t=this}t.WebTorrent=e()}})(function(){var e,t,r;return function n(e,t,r){function i(s,o){if(!t[s]){if(!e[s]){var f=typeof require=="function"&&require;if(!o&&f)return f(s,!0);if(a)return a(s,!0);var u=new Error("Cannot find module '"+s+"'");throw u.code="MODULE_NOT_FOUND",u}var l=t[s]={exports:{}};e[s][0].call(l.exports,function(t){var r=e[s][1][t];return i(r?r:t)},l,l.exports,n,e,t,r)}return t[s].exports}var a=typeof require=="function"&&require;for(var s=0;s<r.length;s++)i(r[s]);return i}({1:[function(e,t,r){(function(r){var i=e("debug")("webtorrent:append-to");var n=e("mediasource");var a=e("path");var s=e("videostream");var o=[".mp4",".m4v",".m4a"];var f=[".mp4",".m4v",".webm"];var u=[".m4a",".mp3"];var l=f.concat(u);var c=[".wav",".aac",".ogg",".oga"];var p=[".jpg",".jpeg",".png",".gif",".bmp"];var d=[".css",".html",".js",".md",".pdf",".txt"];var h=typeof window!=="undefined"&&window.MediaSource;t.exports=function g(e,t,r){if(!r)r=m;var u;var g=a.extname(e.name).toLowerCase();var y=0;if(t&&(t.nodeName==="VIDEO"||t.nodeName==="AUDIO")){throw new Error("Invalid video/audio node argument. Argument must be root element that "+"video/audio tag will be appended to.")}if(l.indexOf(g)>=0)_();else if(c.indexOf(g)>=0)w();else if(p.indexOf(g)>=0)x();else if(d.indexOf(g)>=0)k();else v(r,new Error('Unsupported file type "'+g+'": Cannot append to DOM'));function _(){if(!h){return v(r,new Error("Video/audio streaming is not supported in your browser. You can still share "+"or download "+e.name+" (once it's fully downloaded). Use Chrome for "+"MediaSource support."))}var a=f.indexOf(g)>=0?"video":"audio";if(o.indexOf(g)>=0)l();else c();function l(){i("Use `videostream` package for "+e.name);_();u.addEventListener("error",d);u.addEventListener("playing",b);s(e,u)}function c(){i("Use MediaSource API for "+e.name);_();u.addEventListener("error",m);u.addEventListener("playing",b);e.createReadStream().pipe(new n(u,{extname:g}));if(y)u.currentTime=y}function p(){i("Use Blob URL for "+e.name);_();u.addEventListener("error",S);u.addEventListener("playing",b);e.getBloburl(/sitelet?url=https%3A%2F%2Fgithub.com%2Frublebit%2Fwebtorrent%2Fblob%2Fmaster%2Ffunction%28e%2Ct){if(e)return S(e);u.src=t;if(y)u.currentTime=y})}function d(e){i("videostream error: fallback to MediaSource API: %o",e.message||e);u.removeEventListener("error",d);u.removeEventListener("playing",b);c()}function m(e){i("MediaSource API error: fallback to Blob URL: %o",e.message||e);u.removeEventListener("error",m);u.removeEventListener("playing",b);p()}function _(e){if(!u){u=document.createElement(a);u.controls=true;u.autoplay=true;u.play();u.addEventListener("progress",function(){y=u.currentTime});t.appendChild(u)}}}function b(){u.removeEventListener("playing",b);r(null,u)}function w(){u=document.createElement("audio");u.controls=true;u.autoplay=true;t.appendChild(u);e.getBloburl(/sitelet?url=https%3A%2F%2Fgithub.com%2Frublebit%2Fwebtorrent%2Fblob%2Fmaster%2Ffunction%28e%2Ct){if(e)return S(e);u.addEventListener("error",S);u.addEventListener("playing",b);u.src=t;u.play()})}function x(){e.getBloburl(/sitelet?url=https%3A%2F%2Fgithub.com%2Frublebit%2Fwebtorrent%2Fblob%2Fmaster%2Ffunction%28i%2Cn){if(i)return S(i);u=document.createElement("img");u.src=n;u.alt=e.name;t.appendChild(u);r(null,u)})}function k(){e.getBloburl(/sitelet?url=https%3A%2F%2Fgithub.com%2Frublebit%2Fwebtorrent%2Fblob%2Fmaster%2Ffunction%28e%2Ci){if(e)return S(e);u=document.createElement("iframe");u.src=i;if(g!==".pdf")u.sandbox="allow-forms allow-scripts";t.appendChild(u);r(null,u)})}function S(t){if(u)u.remove();t.message='Error appending file "'+e.name+'" to DOM: '+t.message;i(t.message);if(r)r(t)}};function m(){}function v(e,t,i){r.nextTick(function(){if(e)e(t,i)})}}).call(this,e("_process"))},{_process:49,debug:121,mediasource:130,path:48,videostream:180}],2:[function(e,t,r){t.exports=s;var i=e("debug")("webtorrent:file-stream");var n=e("inherits");var a=e("stream");n(s,a.Readable);function s(e,t){a.Readable.call(this,t);this.destroyed=false;this._torrent=e._torrent;var r=t&&t.start||0;var i=t&&t.end||e.length-1;var n=e._torrent.pieceLength;this._startPiece=(r+e.offset)/n|0;this._endPiece=(i+e.offset)/n|0;this._piece=this._startPiece;this._offset=r+e.offset-this._startPiece*n;this._missing=i-r+1;this._reading=false;this._notifying=false;this._criticalLength=Math.min(1024*1024/n|0,2)}s.prototype._read=function(){if(this._reading)return;this._reading=true;this._notify()};s.prototype._notify=function(){var e=this;if(!e._reading||e._missing===0)return;if(!e._torrent.bitfield.get(e._piece)){return e._torrent.critical(e._piece,e._piece+e._criticalLength)}if(e._notifying)return;e._notifying=true;var t=e._piece;e._torrent.store.get(t,function(r,n){e._notifying=false;if(e.destroyed)return;if(r)return e.destroy(r);i("read %s (length %s) (err %s)",t,n.length,r&&r.message);if(e._offset){n=n.slice(e._offset);e._offset=0}if(e._missing<n.length){n=n.slice(0,e._missing)}e._missing-=n.length;i("pushing buffer of length %s",n.length);e._reading=false;e.push(n);if(e._missing===0)e.push(null)});e._piece+=1};s.prototype.destroy=function(){if(this.destroyed)return;this.destroyed=true;this._torrent.deselect(this._startPiece,this._endPiece,true)}},{debug:121,inherits:129,stream:67}],3:[function(e,t,r){(function(r,i){t.exports=p;var n=e("./append-to");var a=e("end-of-stream");var s=e("events").EventEmitter;var o=e("./file-stream");var f=e("inherits");var u=e("./mime.json");var l=e("path");var c=e("stream");f(p,s);function p(e,t){s.call(this);this._torrent=e;this.name=t.name;this.path=t.path;this.length=t.length;this.offset=t.offset;this.done=false;var r=t.offset;var i=r+t.length-1;this._startPiece=r/this._torrent.pieceLength|0;this._endPiece=i/this._torrent.pieceLength|0;if(this.length===0){this.done=true;this.emit("done")}}p.prototype.select=function(){if(this.length===0)return;this._torrent.select(this._startPiece,this._endPiece,false)};p.prototype.deselect=function(){if(this.length===0)return;this._torrent.deselect(this._startPiece,this._endPiece,false)};p.prototype.createReadStream=function(e){var t=this;if(this.length===0){var i=new c.PassThrough;r.nextTick(function(){i.end()});return i}var n=new o(t,e);t._torrent.select(n._startPiece,n._endPiece,true,function(){n._notify()});a(n,function(){t._torrent.deselect(n._startPiece,n._endPiece,true)});return n};p.prototype.getBuffer=function(e){var t=new i(this.length);var r=0;this.createReadStream().on("data",function(e){e.copy(t,r);r+=e.length}).on("end",function(){e(null,t)}).on("error",e)};p.prototype.getBlobURL=function(e){var t=this;if(typeof window==="undefined")throw new Error("browser-only method");t.getBuffer(function(r,i){if(r)return e(r);var n=l.extname(t.name).toLowerCase();var a=u[n];var s=a?new window.Blob([i],{type:a}):new window.Blob([i]);var o=window.URL.createObjecturl(/sitelet?url=https%3A%2F%2Fgithub.com%2Frublebit%2Fwebtorrent%2Fblob%2Fmaster%2Fs);e(null,o)})};p.prototype.appendTo=function(e,t){if(typeof window==="undefined")throw new Error("browser-only method");if(typeof e==="string")e=document.querySelector(e);n(this,e,t)}}).call(this,e("_process"),e("buffer").Buffer)},{"./append-to":1,"./file-stream":2,"./mime.json":4,_process:49,buffer:39,"end-of-stream":124,events:43,inherits:129,path:48,stream:67}],4:[function(e,t,r){t.exports={".aac":"audio/aac",".css":"text/css",".html":"text/html",".js":"application/javascript",".m4a":"audio/mp4",".md":"text/x-markdown",".mp3":"audio/mpeg",".mp4":"video/mp4",".oga":"audio/ogg",".ogg":"audio/ogg",".pdf":"application/pdf",".txt":"text/plain",".wav":"audio/wav",".webm":"video/webm"}},{}],5:[function(e,t,r){t.exports=i;function i(e,t){var r=this;r.pieces=[];r.swarm=e;r.numPieces=t;function i(e){e.on("have",function(e){r.pieces[e]+=1});e.on("bitfield",function(){r.recalculate()});e.on("close",function(){for(var t=0;t<r.numPieces;++t){r.pieces[t]-=e.peerPieces.get(t)}})}r.swarm.wires.forEach(i);r.swarm.on("wire",function(e){r.recalculate();i(e)});r.recalculate()}i.prototype.recalculate=function(){var e=this;for(var t=0;t<e.numPieces;++t){e.pieces[t]=0}e.swarm.wires.forEach(function(t){for(var r=0;r<e.numPieces;++r){e.pieces[r]+=t.peerPieces.get(r)}})};i.prototype.getRarestPiece=function(e){var t=this;var r=[];var i=Infinity;e=e||function(){return true};for(var n=0;n<t.numPieces;++n){if(!e(n))continue;var a=t.pieces[n];if(a===i){r.push(n)}else if(a<i){r=[n];i=a}}if(r.length>0){return r[Math.random()*r.length|0]}else{return-1}}},{}],6:[function(e,t,r){t.exports=u;var i=e("debug")("webtorrent:server");var n=e("http");var a=e("mime");var s=e("pump");var o=e("range-parser");var f=e("url");function u(e,t){var r=n.createServer(t);var u=[];r.on("connection",function(e){e.setTimeout(36e6);u.push(e);e.on("close",function(){var t=u.indexOf(e);if(t>=0)u.splice(t,1)})});r.destroy=function(e){u.forEach(function(e){e.destroy()});r.close(e)};r.on("request",function(t,r){i("onRequest");if(t.method==="OPTIONS"&&t.headers["access-control-request-headers"]){r.setHeader("Access-Control-Allow-Methods","POST, GET, OPTIONS");r.setHeader("Access-Control-Allow-Headers",t.headers["access-control-request-headers"]);r.setHeader("Access-Control-Max-Age","1728000");return r.end()}if(t.headers.origin){r.setHeader("Access-Control-Allow-Origin",t.headers.origin)}var n=f.parse(t.url).pathname;if(n==="/favicon.ico")return r.end();if(e.ready)u();else e.once("ready",u);function u(){if(n==="/"){r.setHeader("Content-Type","text/html");var f=e.files.map(function(e,t){return'<li><a href="/'+t+'">'+e.name+"</a></li>"}).join("<br>");return r.end("<h1>WebTorrent</h1><ol>"+f+"</ol>")}var u=Number(n.slice(1));if(Number.isNaN(u)||u>=e.files.length){r.statusCode=404;return r.end("404 Not Found")}var l=e.files[u];r.setHeader("Accept-Ranges","bytes");r.setHeader("Content-Type",a.lookup(l.name));r.statusCode=200;r.setHeader("transferMode.dlna.org","Streaming");r.setHeader("contentFeatures.dlna.org","DLNA.ORG_OP=01;DLNA.ORG_CI=0;DLNA.ORG_FLAGS=01700000000000000000000000000000");var c;if(t.headers.range){r.statusCode=206;c=o(l.length,t.headers.range)[0];i("range %s",JSON.stringify(c));r.setHeader("Content-Range","bytes "+c.start+"-"+c.end+"/"+l.length);r.setHeader("Content-Length",c.end-c.start+1)}else{r.setHeader("Content-Length",l.length)}if(t.method==="HEAD")r.end();s(l.createReadStream(c),r)}});return r}},{debug:121,http:68,mime:132,pump:149,"range-parser":153,url:78}],7:[function(e,t,r){(function(r,i){t.exports=H;var n=e("addr-to-ip-port");var a=e("bitfield");var s=e("chunk-store-stream/write");var o=e("create-torrent");var f=e("debug")("webtorrent:torrent");var u=e("torrent-discovery");var l=e("events").EventEmitter;var c=e("xtend/mutable");var p=e("fs-chunk-store");var d=e("immediate-chunk-store");var h=e("inherits");var m=e("multistream");var v=e("os");var g=e("run-parallel");var y=e("parse-torrent");var _=e("path");var b=e("path-exists");var w=e("torrent-piece");var x=e("pump");var k=e("random-iterate");var S=e("re-emitter");var E=e("simple-sha1");var A=e("bittorrent-swarm");var U=e("uniq");var T=e("ut_metadata");var I=e("ut_pex");var L=e("./file");var B=e("./rarity-map");var C=e("./server");var R=128*1024;var P=3e4;var z=5e3;var O=3*w.BLOCK_LENGTH;var F=.5;var M=1;var j=1e4;var D=2;var N=_.join(b.sync("/tmp")?"/tmp":v.tmpDir(),"webtorrent");h(H,l);function H(e,t){var r=this;l.call(r);if(!f.enabled)r.setMaxListeners(0);f("new torrent");r.client=t.client;r.announce=t.announce;r.urlList=t.urlList;r.path=t.path;r._store=t.store||p;r.strategy=t.strategy||"sequential";r._rechokeNumSlots=t.uploads===false||t.uploads===0?0:+t.uploads||10;r._rechokeOptimisticWire=null;r._rechokeOptimisticTime=0;r._rechokeIntervalId=null;r.ready=false;r.destroyed=false;r.metadata=null;r.store=null;r.numBlockedPeers=0;r.files=null;r.done=false;r._amInterested=false;r._selections=[];r._critical=[];r._servers=[];if(e)r._onTorrentId(e)}Object.defineProperty(H.prototype,"timeRemaining",{get:function(){if(this.swarm.downloadSpeed()===0)return Infinity;else return(this.length-this.downloaded)/this.swarm.downloadSpeed()*1e3}});Object.defineProperty(H.prototype,"downloaded",{get:function(){var e=0;for(var t=0,r=this.pieces.length;t<r;++t){if(this.bitfield.get(t)){e+=t===r-1?this.lastPieceLength:this.pieceLength}else{var i=this.pieces[t];e+=i.length-i.missing}}return e}});Object.defineProperty(H.prototype,"received",{get:function(){return this.swarm?this.swarm.downloaded:0}});Object.defineProperty(H.prototype,"uploaded",{get:function(){return this.swarm?this.swarm.uploaded:0}});Object.defineProperty(H.prototype,"progress",{get:function(){return this.length?this.downloaded/this.length:0}});Object.defineProperty(H.prototype,"ratio",{get:function(){return this.uploaded/(this.downloaded||1)}});Object.defineProperty(H.prototype,"numPeers",{get:function(){return this.swarm?this.swarm.numPeers:0}});Object.defineProperty(H.prototype,"torrentFileURL",{get:function(){if(typeof window==="undefined")throw new Error("browser-only property");if(!this.torrentFile)return null;return window.URL.createObjecturl(/sitelet?url=https%3A%2F%2Fgithub.com%2Frublebit%2Fwebtorrent%2Fblob%2Fmaster%2Fnew%2520window.Blob%28%5Bthis.torrentFile%5D%2C%257Btype%3A%26quot%3Bapplication%2Fx-bittorrent%26quot%3B%257D))}});H.prototype.downloadSpeed=function(){return this.swarm?this.swarm.downloadSpeed():0};H.prototype.uploadSpeed=function(){return this.swarm?this.swarm.uploadSpeed():0};H.prototype._onTorrentId=function(e){var t=this;if(t.destroyed)return;y.remote(e,function(e,r){if(t.destroyed)return;if(e)return t._onError(e);t._onParsedTorrent(r)})};H.prototype._onParsedTorrent=function(e){var t=this;if(t.destroyed)return;t._processParsedTorrent(e);if(!t.infoHash){return t._onError(new Error("Malformed torrent data: No info hash"))}if(!t.path)t.path=_.join(N,t.infoHash);t.swarm=new A(t.infoHash,t.client.peerId,{handshake:{dht:t.private?false:!!t.client.dht}});t.swarm.on("error",t._onError.bind(t));t.swarm.on("wire",t._onWire.bind(t));t.swarm.on("download",function(e){t.client.downloadSpeed(e);t.client.emit("download",e);t.emit("download",e)});t.swarm.on("upload",function(e){t.client.uploadSpeed(e);t.client.emit("upload",e);t.emit("upload",e)});t.swarm.listen(t.client.torrentPort,t._onSwarmListening.bind(t));r.nextTick(function(){if(t.destroyed)return;t.emit("infoHash",t.infoHash)})};H.prototype._processParsedTorrent=function(e){if(this.announce){e.announce=e.announce.concat(this.announce)}if(i.WEBTORRENT_ANNOUNCE){e.announce=e.announce.concat(i.WEBTORRENT_ANNOUNCE)}if(e.announce.length===0){e.announce=o.announceList.map(function(e){return e[0]})}if(this.urlList){e.urlList=e.urlList.concat(this.urlList)}U(e.announce);c(this,e);this.magnetURI=y.toMagnetURI(e);this.torrentFile=y.toTorrentFile(e)};H.prototype._onSwarmListening=function(){var e=this;if(e.destroyed)return;if(e.swarm.server)e.client.torrentPort=e.swarm.address().port;e.discovery=new u({announce:e.announce,dht:e.private?false:e.client.dht,tracker:e.client.tracker,peerId:e.client.peerId,port:e.client.torrentPort,rtcConfig:e.client._rtcConfig,wrtc:e.client._wrtc});e.discovery.on("error",e._onError.bind(e));e.discovery.setTorrent(e.infoHash);e.discovery.on("peer",e.addPeer.bind(e));S(e.discovery,e,["trackerAnnounce","dhtAnnounce","warning"]);if(e.info)e._onMetadata(e);e.emit("listening",e.client.torrentPort)};H.prototype._onMetadata=function(e){var t=this;if(t.metadata||t.destroyed)return;f("got metadata");var r;if(e&&e.infoHash){r=e}else{try{r=y(e)}catch(i){return t._onError(i)}}t._processParsedTorrent(r);t.metadata=t.torrentFile;t.discovery.setTorrent(t);if(t.urlList)t.urlList.forEach(t.addWebSeed.bind(t));t.rarityMap=new B(t.swarm,t.pieces.length);t.store=new d(new t._store(t.pieceLength,{files:t.files.map(function(e){return{path:_.join(t.path,e.path),length:e.length,offset:e.offset}}),length:t.length}));t.files=t.files.map(function(e){return new L(t,e)});t._hashes=t.pieces;t.pieces=t.pieces.map(function(e,r){var i=r===t.pieces.length-1?t.lastPieceLength:t.pieceLength;return new w(i)});t._reservations=t.pieces.map(function(){return[]});t.bitfield=new a(t.pieces.length);t.swarm.wires.forEach(function(e){if(e.ut_metadata)e.ut_metadata.setMetadata(t.metadata);t._onWireWithMetadata(e)});f("verifying existing torrent data");g(t.pieces.map(function(e,r){return function(e){t.store.get(r,function(i,n){if(i)return e(null);E(n,function(i){if(i===t._hashes[r]){if(!t.pieces[r])return;f("piece verified %s",r);t.pieces[r]=null;t._reservations[r]=null;t.bitfield.set(r,true)}else{f("piece invalid %s",r)}e(null)})})}}),function(e){if(e)return t._onError(e);f("done verifying");t._onStore()});t.emit("metadata")};H.prototype._onStore=function(){var e=this;if(e.destroyed)return;f("on store");e.select(0,e.pieces.length-1,false);e._rechokeIntervalId=setInterval(e._rechoke.bind(e),j);if(e._rechokeIntervalId.unref)e._rechokeIntervalId.unref();e.ready=true;e.emit("ready");e._checkDone()};H.prototype.destroy=function(e){var t=this;if(t.destroyed)return;t.destroyed=true;f("destroy");t.client.remove(t);if(t._rechokeIntervalId){clearInterval(t._rechokeIntervalId);t._rechokeIntervalId=null}var r=[];t._servers.forEach(function(e){r.push(function(t){e.destroy(t)})});if(t.swarm)r.push(function(e){t.swarm.destroy(e)});if(t.discovery)r.push(function(e){t.discovery.stop(e)});if(t.store)r.push(function(e){t.store.close(e)});g(r,e)};H.prototype.addPeer=function(e){var t=this;function r(){t.swarm.addPeer(e);t.emit("peer",e)}if(typeof e==="string"&&t.client.blocked&&t.client.blocked.contains(n(e)[0])){t.numBlockedPeers+=1;t.emit("blockedPeer",e);return false}else{if(t.swarm)r();else t.once("listening",r);return true}};H.prototype.addWebSeed=function(e){var t=this;t.swarm.addWebSeed(e,t)};H.prototype.select=function(e,t,r,i){var n=this;if(e>t||e<0||t>=n.pieces.length){throw new Error("invalid selection ",e,":",t)}r=Number(r)||0;f("select %s-%s (priority %s)",e,t,r);n._selections.push({from:e,to:t,offset:0,priority:r,notify:i||W});n._selections.sort(function(e,t){return t.priority-e.priority});n._updateSelections()};H.prototype.deselect=function(e,t,r){var i=this;r=Number(r)||0;f("deselect %s-%s (priority %s)",e,t,r);for(var n=0;n<i._selections.length;++n){var a=i._selections[n];if(a.from===e&&a.to===t&&a.priority===r){i._selections.splice(n--,1);break}}i._updateSelections()};H.prototype.critical=function(e,t){var r=this;f("critical %s-%s",e,t);for(var i=e;i<=t;++i){r._critical[i]=true}r._updateSelections()};H.prototype._onWire=function(e,t){var r=this;f("got wire (%s)",t||"Unknown");if(t){var i=n(t);e.remoteAddress=i[0];e.remotePort=i[1]}if(e.peerExtensions.dht&&r.client.dht&&r.client.dht.listening){e.on("port",function(t){if(!e.remoteAddress){f("ignoring port from peer with no address");return}f("port: %s (from %s)",t,e.remoteAddress+":"+e.remotePort);r.client.dht.addNode(e.remoteAddress+":"+t)});e.port(r.client.dht.address().port)}e.on("timeout",function(){f("wire timeout (%s)",t);e.destroy()});e.setTimeout(P,true);e.setKeepAlive(true);e.use(T(r.metadata));if(!r.metadata){e.ut_metadata.on("metadata",function(e){f("got metadata via ut_metadata");r._onMetadata(e)});e.ut_metadata.fetch()}if(typeof I==="function"&&!r.private){e.use(I());e.ut_pex.on("peer",function(e){f("ut_pex: got peer: %s (from %s)",e,t);r.addPeer(e)});e.ut_pex.on("dropped",function(e){var i=r.swarm._peers[e];if(i&&!i.connected){f("ut_pex: dropped peer: %s (from %s)",e,t);r.swarm.removePeer(e)}})}r.emit("wire",e,t);if(r.metadata){r._onWireWithMetadata(e)}};H.prototype._onWireWithMetadata=function(e){var t=this;var r=null;function i(){if(t.destroyed||e.destroyed)return;if(t.swarm.numQueued>2*(t.swarm.numConns-t.swarm.numPeers)&&e.amInterested){e.destroy()}else{r=setTimeout(i,z);if(r.unref)r.unref()}}var n=0;function a(){if(e.peerPieces.length!==t.pieces.length)return;for(;n<t.pieces.length;++n){if(!e.peerPieces.get(n))return}e.isSeeder=true;e.choke()}e.on("bitfield",function(){a();t._update()});e.on("have",function(){a();t._update()});e.once("interested",function(){e.unchoke()});e.on("close",function(){clearTimeout(r)});e.on("choke",function(){clearTimeout(r);r=setTimeout(i,z);if(r.unref)r.unref()});e.on("unchoke",function(){clearTimeout(r);t._update()});e.on("request",function(r,i,n,a){if(n>R){return e.destroy()}if(t.pieces[r])return;t.store.get(r,{offset:i,length:n},a)});e.bitfield(t.bitfield);e.interested();r=setTimeout(i,z);if(r.unref)r.unref();e.isSeeder=false;a()};H.prototype._updateSelections=function(){var e=this;if(!e.swarm||e.destroyed)return;if(!e.metadata)return e.once("metadata",e._updateSelections.bind(e));r.nextTick(e._gcSelections.bind(e));e._updateInterest();e._update()};H.prototype._gcSelections=function(){var e=this;for(var t=0;t<e._selections.length;t++){var r=e._selections[t];var i=r.offset;while(e.bitfield.get(r.from+r.offset)&&r.from+r.offset<r.to){r.offset++}if(i!==r.offset)r.notify();if(r.to!==r.from+r.offset)continue;if(!e.bitfield.get(r.from+r.offset))continue;e._selections.splice(t--,1);r.notify();e._updateInterest()}if(!e._selections.length)e.emit("idle")};H.prototype._updateInterest=function(){var e=this;var t=e._amInterested;e._amInterested=!!e._selections.length;e.swarm.wires.forEach(function(t){if(e._amInterested)t.interested();else t.uninterested()});if(t===e._amInterested)return;if(e._amInterested)e.emit("interested");else e.emit("uninterested")};H.prototype._update=function(){var e=this;if(e.destroyed)return;var t=k(e.swarm.wires);var r;while(r=t()){e._updateWire(r)}};H.prototype._updateWire=function(e){var t=this;if(e.peerChoking)return;if(!e.downloaded)return a();var r=q(e,F);if(e.requests.length>=r)return;var i=q(e,M);f(false)||f(true);function n(t,r,i,n){return function(a){return a>=t&&a<=r&&!(a in i)&&e.peerPieces.get(a)&&(!n||n(a))}}function a(){if(e.requests.length)return;var r=t._selections.length;while(r--){var i=t._selections[r];var a;if(t.strategy==="rarest"){var s=i.from+i.offset;var o=i.to;var f=o-s+1;var u={};var l=0;var c=n(s,o,u);while(l<f){a=t.rarityMap.getRarestPiece(c);if(a<0)break;if(t._request(e,a,false))return;u[a]=true;l+=1}}else{for(a=i.to;a>=i.from+i.offset;--a){if(!e.peerPieces.get(a))continue;if(t._request(e,a,false))return}}}}function s(){var r=e.downloadSpeed()||1;if(r>O)return function(){return true};var i=Math.max(1,e.requests.length)*w.BLOCK_LENGTH/r;var n=10;var a=0;return function(e){if(!n||t.bitfield.get(e))return true;var s=t.pieces[e].missing;for(;a<t.swarm.wires.length;a++){var o=t.swarm.wires[a];var f=o.downloadSpeed();if(f<O)continue;if(f<=r)continue;if(!o.peerPieces.get(e))continue;if((s-=f*i)>0)continue;n--;return false}return true}}function o(e){var r=e;for(var i=e;i<t._selections.length&&t._selections[i].priority;i++){r=i}var n=t._selections[e];t._selections[e]=t._selections[r];t._selections[r]=n}function f(r){if(e.requests.length>=i)return true;var a=s();for(var f=0;f<t._selections.length;f++){var u=t._selections[f];var l;if(t.strategy==="rarest"){var c=u.from+u.offset;var p=u.to;var d=p-c+1;var h={};var m=0;var v=n(c,p,h,a);while(m<d){l=t.rarityMap.getRarestPiece(v);if(l<0)break;while(t._request(e,l,t._critical[l]||r)){}if(e.requests.length<i){h[l]=true;m++;continue}if(u.priority)o(f);return true}}else{for(l=u.from+u.offset;l<=u.to;l++){if(!e.peerPieces.get(l)||!a(l))continue;while(t._request(e,l,t._critical[l]||r)){}if(e.requests.length<i)continue;if(u.priority)o(f);return true}}}return false}};H.prototype._rechoke=function(){var e=this;if(e._rechokeOptimisticTime>0)e._rechokeOptimisticTime-=1;else e._rechokeOptimisticWire=null;var t=[];e.swarm.wires.forEach(function(r){if(!r.isSeeder&&r!==e._rechokeOptimisticWire){t.push({wire:r,downloadSpeed:r.downloadSpeed(),uploadSpeed:r.uploadSpeed(),salt:Math.random(),isChoked:true})}});t.sort(s);var r=0;var i=0;for(;i<t.length&&r<e._rechokeNumSlots;++i){t[i].isChoked=false;if(t[i].wire.peerInterested)r+=1}if(!e._rechokeOptimisticWire&&i<t.length&&e._rechokeNumSlots){var n=t.slice(i).filter(function(e){return e.wire.peerInterested});var a=n[G(n.length)];if(a){a.isChoked=false;e._rechokeOptimisticWire=a.wire;e._rechokeOptimisticTime=D}}t.forEach(function(e){if(e.wire.amChoking!==e.isChoked){if(e.isChoked)e.wire.choke();else e.wire.unchoke()}});function s(e,t){if(e.downloadSpeed!==t.downloadSpeed){return t.downloadSpeed-e.downloadSpeed}if(e.uploadSpeed!==t.uploadSpeed){return t.uploadSpeed-e.uploadSpeed}if(e.wire.amChoking!==t.wire.amChoking){return e.wire.amChoking?1:-1}return e.salt-t.salt}};H.prototype._hotswap=function(e,t){var r=this;var i=e.downloadSpeed();if(i<w.BLOCK_LENGTH)return false;if(!r._reservations[t])return false;var n=r._reservations[t];if(!n){return false}var a=Infinity;var s;var o;for(o=0;o<n.length;o++){var f=n[o];if(!f||f===e)continue;var u=f.downloadSpeed();if(u>=O)continue;if(2*u>i||u>a)continue;s=f;a=u}if(!s)return false;for(o=0;o<n.length;o++){if(n[o]===s)n[o]=null}for(o=0;o<s.requests.length;o++){var l=s.requests[o];if(l.piece!==t)continue;r.pieces[t].cancel(l.offset/w.BLOCK_SIZE|0)}r.emit("hotswap",s,e,t);return true};H.prototype._request=function(e,t,i){var n=this;var a=e.requests.length;if(n.bitfield.get(t))return false;var s=q(e,M);if(a>=s)return false;var o=n.pieces[t];var u=o.reserve();if(u===-1&&i&&n._hotswap(e,t)){u=o.reserve()}if(u===-1)return false;var l=n._reservations[t];if(!l)l=n._reservations[t]=[];var c=l.indexOf(null);if(c===-1)c=l.length;l[c]=e;var p=o.chunkOffset(u);var d=o.chunkLength(u);e.request(t,p,d,function m(r,i){if(!n.ready)return n.once("ready",function(){m(r,i)});if(l[c]===e)l[c]=null;if(o!==n.pieces[t])return h();if(r){f("error getting piece %s (offset: %s length: %s) from %s: %s",t,p,d,e.remoteAddress+":"+e.remotePort,r.message);o.cancel(u);h();return}f("got piece %s (offset: %s length: %s) from %s",t,p,d,e.remoteAddress+":"+e.remotePort);if(!o.set(u,i,e))return h();var a=o.flush();E(a,function(e){if(e===n._hashes[t]){if(!n.pieces[t])return;f("piece verified %s",t);n.pieces[t]=null;n._reservations[t]=null;n.bitfield.set(t,true);n.store.put(t,a);n.swarm.wires.forEach(function(e){e.have(t)});n._checkDone()}else{n.pieces[t]=new w(o.length);n.emit("warning",new Error("Piece "+t+" failed verification"))}h()})});function h(){r.nextTick(function(){n._update()})}return true};H.prototype._checkDone=function(){var e=this;if(e.destroyed)return;e.files.forEach(function(t){if(t.done)return;for(var r=t._startPiece;r<=t._endPiece;++r){if(!e.bitfield.get(r))return}t.done=true;t.emit("done");f("file done: "+t.name)});if(e.files.every(function(e){return e.done})){e.done=true;e.emit("done");f("torrent done: "+e.infoHash);if(e.discovery.tracker)e.discovery.tracker.complete()}e._gcSelections()};H.prototype.load=function(e,t){var r=this;if(!Array.isArray(e))e=[e];if(!t)t=W;var i=new m(e);var n=new s(r.store,r.pieceLength);x(i,n,function(e){if(e)return t(e);r.pieces.forEach(function(e,t){r.pieces[t]=null;r._reservations[t]=null;r.bitfield.set(t,true)});r._checkDone();t(null)})};H.prototype.createServer=function(e){var t=this;if(typeof C!=="function")return;var r=new C(t,e);t._servers.push(r);return r};H.prototype._onError=function(e){var t=this;f("torrent error: %s",e.message||e);t.emit("error",e);t.destroy()};function q(e,t){return Math.ceil(2+t*e.downloadSpeed()/w.BLOCK_LENGTH)}function G(e){return Math.random()*e|0}function W(){}}).call(this,e("_process"),typeof global!=="undefined"?global:typeof self!=="undefined"?self:typeof window!=="undefined"?window:{})},{"./file":3,"./rarity-map":5,"./server":6,_process:49,"addr-to-ip-port":8,bitfield:9,"bittorrent-swarm":10,"chunk-store-stream/write":90,"create-torrent":91,debug:121,events:43,"fs-chunk-store":131,"immediate-chunk-store":128,inherits:129,multistream:134,os:47,"parse-torrent":135,path:48,"path-exists":148,pump:149,"random-iterate":152,"re-emitter":154,"run-parallel":155,"simple-sha1":163,"torrent-discovery":166,"torrent-piece":167,uniq:168,ut_metadata:169,ut_pex:38,"xtend/mutable":182}],8:[function(e,t,r){var i=/^\[?([^\]]+)\]?:(\d+)$/;var n={};var a=0;t.exports=function s(e){if(a===1e5)t.exports.reset();if(!n[e]){var r=i.exec(e);if(!r)throw new Error("invalid addr: "+e);n[e]=[r[1],Number(r[2])];a+=1}return n[e]};t.exports.reset=function o(){n={};a=0}},{}],9:[function(e,t,r){(function(e){var r=typeof e!=="undefined"?e:typeof Int8Array!=="undefined"?Int8Array:function(e){var t=new Array(e);for(var r=0;r<e;r++)t[r]=0};function i(e,t){if(!(this instanceof i)){return new i(e,t)}if(arguments.length===0){e=0}this.grow=t&&(isFinite(t.grow)&&n(t.grow)||t.grow)||0;if(typeof e==="number"||e===undefined){e=new r(n(e));if(e.fill&&!e._isBuffer)e.fill(0)}this.buffer=e}function n(e){var t=e>>3;if(e%8!==0)t++;return t}i.prototype.get=function(e){var t=e>>3;return t<this.buffer.length&&!!(this.buffer[t]&128>>e%8)};i.prototype.set=function(e,t){var r=e>>3;if(t||arguments.length===1){if(this.buffer.length<r+1)this._grow(Math.max(r+1,Math.min(2*this.buffer.length,this.grow)));this.buffer[r]|=128>>e%8}else if(r<this.buffer.length){this.buffer[r]&=~(128>>e%8)}};i.prototype._grow=function(e){if(this.buffer.length<e&&e<=this.grow){var t=new r(e);if(t.fill)t.fill(0);if(this.buffer.copy)this.buffer.copy(t,0);else{for(var i=0;i<this.buffer.length;i++){t[i]=this.buffer[i]}}this.buffer=t}};if(typeof t!=="undefined")t.exports=i}).call(this,e("buffer").Buffer)},{buffer:39}],10:[function(e,t,r){(function(r,i){t.exports=m;var n=e("addr-to-ip-port");var a=e("debug")("bittorrent-swarm");var s=e("dezalgo");var o=e("events").EventEmitter;var f=e("inherits");var u=e("net");var l=e("./lib/peer");var c=e("speedometer");var p=e("./lib/tcp-pool");var d=55;var h=[1e3,5e3,15e3];f(m,o);function m(e,t,r){var n=this;if(!(n instanceof m))return new m(e,t,r);o.call(n);n.infoHash=typeof e==="string"?new i(e,"hex"):e;n.infoHashHex=n.infoHash.toString("hex");n.peerId=typeof t==="string"?new i(t,"hex"):t;n.peerIdHex=n.peerId.toString("hex");if(!r)r={};a("new swarm (i %s p %s)",n.infoHashHex,n.peerIdHex);n.handshakeOpts=r.handshake;n.maxConns=r.maxConns!==undefined?r.maxConns:d;n.destroyed=false;n.listening=false;n.paused=false;n.server=null;n.wires=[];n._queue=[];n._peers={};n._peersLength=0;n._port=0;n.downloaded=0;n.uploaded=0;n.downloadSpeed=c();n.uploadSpeed=c()}Object.defineProperty(m.prototype,"ratio",{get:function(){var e=this;return e.uploaded/e.downloaded||0}});Object.defineProperty(m.prototype,"numQueued",{get:function(){var e=this;return e._queue.length+(e._peersLength-e.numConns)}});Object.defineProperty(m.prototype,"numConns",{get:function(){var e=this;var t=0;for(var r in e._peers){var i=e._peers[r];if(i&&i.connected)t+=1}return t}});Object.defineProperty(m.prototype,"numPeers",{get:function(){var e=this;return e.wires.length}});m.prototype.addPeer=function(e){var t=this;t._addPeer(e)};m.prototype._addPeer=function(e){var t=this;if(t.destroyed){if(e&&e.destroy)e.destroy(new Error("swarm already destroyed"));return null}if(typeof e==="string"&&!t._validAddr(e)){a("ignoring invalid peer %s (from swarm.addPeer)",e);return null}var r=e&&e.id||e;if(t._peers[r])return;a("addPeer %s",r);var i;if(typeof e==="string"){i=l.createOutgoingTCPPeer(e,t)}else{if(t.paused){e.destroy(new Error("swarm paused"));return null}i=l.createWebRTCPeer(e,t)}t._peers[i.id]=i;t._peersLength+=1;if(typeof e==="string"){t._queue.push(i);t._drain()}return i};m.prototype.addWebSeed=function(e,t){var r=this;if(r.destroyed)return;if(!/^https?:\/\/.+/.test(e)){a("ignoring invalid web seed %s (from swarm.addWebSeed)",e);return}if(r._peers[e])return;a("addWebSeed %s",e);var i=l.createWebPeer(e,t,r);r._peers[i.id]=i;r._peersLength+=1};m.prototype._addIncomingPeer=function(e){var t=this;if(t.destroyed)return e.destroy(new Error("swarm already destroyed"));if(t.paused)return e.destroy(new Error("swarm paused"));if(!t._validAddr(e.addr)){return e.destroy(new Error("invalid addr "+e.addr+" (from incoming)"))}a("_addIncomingPeer %s",e.id);t._peers[e.id]=e;t._peersLength+=1};m.prototype.removePeer=function(e){var t=this;var r=t._peers[e];if(!r)return;a("removePeer %s",e);t._peers[e]=null;t._peersLength-=1;r.destroy();t._drain()};m.prototype.pause=function(){var e=this;if(e.destroyed)return;a("pause");e.paused=true};m.prototype.resume=function(){var e=this;if(e.destroyed)return;a("resume");e.paused=false;e._drain()};m.prototype.listen=function(e,t,i){

var n=this;if(typeof t==="function"){i=t;t=undefined}if(i)i=s(i);if(n.listening)throw new Error("swarm already listening");if(r.browser&&i){i()}else{n._port=e||p.getDefaultListenPort(n.infoHashHex);n._hostname=t;if(i)n.once("listening",i);a("listen %s",e);var o=p.addSwarm(n);n.server=o.server}};m.prototype._onListening=function(e){var t=this;t._port=e;t.listening=true;t.emit("listening")};m.prototype.address=function(){var e=this;return e.server.address()};m.prototype.destroy=function(e){var t=this;if(t.destroyed)return;t.destroyed=true;t.listening=false;t.paused=false;if(e)t.once("close",e);a("destroy");for(var r in t._peers){t.removePeer(r)}p.removeSwarm(t,function(){t.emit("close")})};m.prototype._drain=function(){var e=this;a("_drain numConns %s maxConns %s",e.numConns,e.maxConns);if(typeof u.connect!=="function"||e.destroyed||e.paused||e.numConns>=e.maxConns){return}a("drain (%s queued, %s/%s peers)",e.numQueued,e.numPeers,e.maxConns);var t=e._queue.shift();if(!t)return;a("tcp connect attempt to %s",t.addr);var r=n(t.addr);var i={host:r[0],port:r[1]};if(e._hostname)i.localAddress=e._hostname;var s=t.conn=u.connect(i);s.once("connect",function(){t.onConnect()});s.once("error",function(e){t.destroy(e)});t.setConnectTimeout();s.on("close",function(){if(e.destroyed)return;if(t.retries>=h.length){a("conn %s closed: will not re-add (max %s attempts)",t.addr,h.length);return}var r=h[t.retries];a("conn %s closed: will re-add to queue in %sms (attempt %s)",t.addr,r,t.retries+1);var i=setTimeout(function n(){var r=e._addPeer(t.addr);if(r)r.retries=t.retries+1},r);if(i.unref)i.unref()})};m.prototype._onError=function(e){var t=this;t.emit("error",e);t.destroy()};m.prototype._validAddr=function(e){var t=this;var r=n(e);var i=r[0];var a=r[1];return a>0&&a<65535&&!(i==="127.0.0.1"&&a===t._port)}}).call(this,e("_process"),e("buffer").Buffer)},{"./lib/peer":11,"./lib/tcp-pool":12,_process:49,"addr-to-ip-port":38,buffer:39,debug:121,dezalgo:19,events:43,inherits:129,net:38,speedometer:165}],11:[function(e,t,r){var i=e("debug")("bittorrent-swarm:peer");var n=e("./webconn");var a=e("bittorrent-protocol");var s=25e3;var o=25e3;r.createWebRTCPeer=function(e,t){var r=new f(e.id);r.conn=e;r.swarm=t;if(r.conn.connected){r.onConnect()}else{r.conn.once("connect",function(){r.onConnect()});r.conn.once("error",function(e){r.destroy(e)});r.setConnectTimeout()}return r};r.createIncomingTCPPeer=function(e){var t=e.remoteAddress+":"+e.remotePort;var r=new f(t);r.conn=e;r.addr=t;r.onConnect();return r};r.createOutgoingTCPPeer=function(e,t){var r=new f(e);r.addr=e;r.swarm=t;return r};r.createWebPeer=function(e,t,r){var i=new f(e);i.swarm=r;i.conn=new n(e,t);i.onConnect();return i};function f(e){var t=this;t.id=e;i("new Peer %s",e);t.addr=null;t.conn=null;t.swarm=null;t.wire=null;t.connected=false;t.destroyed=false;t.timeout=null;t.retries=0;t.sentHandshake=false}f.prototype.onConnect=function(){var e=this;if(e.destroyed)return;e.connected=true;i("Peer %s connected",e.id);clearTimeout(e.connectTimeout);var t=e.conn;t.once("end",function(){e.destroy()});t.once("close",function(){e.destroy()});t.once("finish",function(){e.destroy()});t.once("error",function(t){e.destroy(t)});var r=e.wire=new a;r.once("end",function(){e.destroy()});r.once("close",function(){e.destroy()});r.once("finish",function(){e.destroy()});r.once("error",function(t){e.destroy(t)});r.once("handshake",function(t,r){e.onHandshake(t,r)});e.setHandshakeTimeout();t.pipe(r).pipe(t);if(e.swarm&&!e.sentHandshake)e.handshake()};f.prototype.onHandshake=function(e,t){var r=this;if(!r.swarm)return;var n=e.toString("hex");var a=t.toString("hex");if(r.swarm.destroyed)return r.destroy(new Error("swarm already destroyed"));if(n!==r.swarm.infoHashHex){return r.destroy(new Error("unexpected handshake info hash for this swarm"))}if(a===r.swarm.peerIdHex){return r.destroy(new Error("refusing to handshake with self"))}i("Peer %s got handshake %s",r.id,n);clearTimeout(r.handshakeTimeout);r.retries=0;r.wire.on("download",function(e){if(r.destroyed)return;r.swarm.downloaded+=e;r.swarm.downloadSpeed(e);r.swarm.emit("download",e)});r.wire.on("upload",function(e){if(r.destroyed)return;r.swarm.uploaded+=e;r.swarm.uploadSpeed(e);r.swarm.emit("upload",e)});if(!r.sentHandshake)r.handshake();r.swarm.wires.push(r.wire);var s=r.addr;if(!s&&r.conn.remoteAddress){s=r.conn.remoteAddress+":"+r.conn.remotePort}r.swarm.emit("wire",r.wire,s)};f.prototype.handshake=function(){var e=this;e.wire.handshake(e.swarm.infoHash,e.swarm.peerId,e.swarm.handshakeOpts);e.sentHandshake=true};f.prototype.setConnectTimeout=function(){var e=this;clearTimeout(e.connectTimeout);e.connectTimeout=setTimeout(function(){e.destroy(new Error("connect timeout"))},s);if(e.connectTimeout.unref)e.connectTimeout.unref()};f.prototype.setHandshakeTimeout=function(){var e=this;clearTimeout(e.handshakeTimeout);e.handshakeTimeout=setTimeout(function(){e.destroy(new Error("handshake timeout"))},o);if(e.handshakeTimeout.unref)e.handshakeTimeout.unref()};f.prototype.destroy=function(e){var t=this;if(t.destroyed)return;t.destroyed=true;t.connected=false;i("destroy %s (error: %s)",t.id,e&&(e.message||e));clearTimeout(t.connectTimeout);clearTimeout(t.handshakeTimeout);var r=t.swarm;var n=t.conn;var a=t.wire;t.conn=null;t.swarm=null;t.wire=null;if(r&&a){var s=r.wires.indexOf(a);if(s>=0)r.wires.splice(s,1)}if(n)n.destroy();if(a)a.destroy();if(r)r.removePeer(t.id)}},{"./webconn":13,"bittorrent-protocol":14,debug:121}],12:[function(e,t,r){(function(r){t.exports=f;var i=e("debug")("bittorrent-swarm:tcp-pool");var n=e("dezalgo");var a=e("net");var s=e("./peer");var o={};function f(e,t){var r=this;r.port=e;r.listening=false;r.swarms={};i("new TCPPool (port: %s, hostname: %s)",e,t);r.pendingConns=[];r.server=a.createServer();r.server.on("connection",function(e){r._onConnection(e)});r.server.on("error",function(e){r._onError(e)});r.server.on("listening",function(){r._onListening()});r.server.listen(r.port,t)}f.addSwarm=function(e){var t=o[e._port];if(!t)t=o[e._port]=new f(e._port,e._hostname);t.addSwarm(e);return t};f.removeSwarm=function(e,t){var i=o[e._port];if(!i)return t();i.removeSwarm(e);var n=0;for(var a in i.swarms){var s=i.swarms[a];if(s)n+=1}if(n===0)i.destroy(t);else r.nextTick(t)};f.getDefaultListenPort=function(e){for(var t in o){var r=o[t];if(r&&!r.swarms[e])return r.port}return 0};f.prototype.addSwarm=function(e){var t=this;if(t.swarms[e.infoHashHex]){r.nextTick(function(){e._onError(new Error("There is already a swarm with info hash "+e.infoHashHex+" "+"listening on port "+e._port))});return}t.swarms[e.infoHashHex]=e;if(t.listening){r.nextTick(function(){e._onListening(t.port)})}i("add swarm %s to tcp pool %s",e.infoHashHex,t.port)};f.prototype.removeSwarm=function(e){var t=this;i("remove swarm %s from tcp pool %s",e.infoHashHex,t.port);t.swarms[e.infoHashHex]=null};f.prototype.destroy=function(e){var t=this;if(e)e=n(e);i("destroy tcp pool %s",t.port);t.listening=false;t.pendingConns.forEach(function(e){e.destroy()});o[t.port]=null;try{t.server.close(e)}catch(r){if(e)e(null)}};f.prototype._onListening=function(){var e=this;var t=e.server.address()||{port:0};var r=t.port;i("tcp pool listening on %s",r);if(r!==e.port){o[e.port]=null;e.port=r;o[e.port]=e}e.listening=true;for(var n in e.swarms){var a=e.swarms[n];if(a)a._onListening(e.port)}};f.prototype._onConnection=function(e){var t=this;t.pendingConns.push(e);e.once("close",r);function r(){t.pendingConns.splice(t.pendingConns.indexOf(e))}var i=s.createIncomingTCPPeer(e);i.wire.once("handshake",function(n,a){var s=n.toString("hex");r();e.removeListener("close",r);var o=t.swarms[s];if(o){i.swarm=o;o._addIncomingPeer(i);i.onHandshake(n,a)}else{var f=new Error("Unexpected info hash "+s+" from incoming peer "+i.id+": destroying peer");i.destroy(f)}})};f.prototype._onError=function(e){var t=this;t.destroy();for(var r in t.swarms){var i=t.swarms[r];if(i){t.removeSwarm(i);i._onError(e)}}}}).call(this,e("_process"))},{"./peer":11,_process:49,debug:121,dezalgo:19,net:38}],13:[function(e,t,r){(function(r){t.exports=f;var i=e("bitfield");var n=e("debug")("bittorrent-swarm:webconn");var a=e("simple-get");var s=e("inherits");var o=e("bittorrent-protocol");s(f,o);function f(e,t){var a=this;o.call(this);a.url=e;a.parsedTorrent=t;a.setKeepAlive(true);a.on("handshake",function(t,n){a.handshake(t,new r(20).fill(e));var s=a.parsedTorrent.pieces.length;var o=new i(s);for(var f=0;f<=s;f++){o.set(f,true)}a.bitfield(o)});a.on("choke",function(){n("choke")});a.on("unchoke",function(){n("unchoke")});a.once("interested",function(){n("interested");a.unchoke()});a.on("uninterested",function(){n("uninterested")});a.on("bitfield",function(){n("bitfield")});a.on("request",function(e,t,r,i){n("request pieceIndex=%d offset=%d length=%d",e,t,r);a.httpRequest(e,t,r,i)})}f.prototype.httpRequest=function(e,t,r,i){var s=this;var o=e*s.parsedTorrent.pieceLength;var f=o+t;var u=f+r-1;n("Requesting pieceIndex=%d offset=%d length=%d start=%d end=%d",e,t,r,f,u);var l={url:s.url,method:"GET",headers:{"user-agent":"WebTorrent (http://webtorrent.io)",range:"bytes="+f+"-"+u}};a.concat(l,function(e,t,r){if(e)return i(e);if(r.statusCode<200||r.statusCode>=300){return i(new Error("Unexpected HTTP status code "+r.statusCode))}n("Got data of length %d",t.length);i(null,t)})}}).call(this,e("buffer").Buffer)},{bitfield:9,"bittorrent-protocol":14,buffer:39,debug:121,inherits:129,"simple-get":160}],14:[function(e,t,r){(function(r){t.exports=w;var i=e("bencode");var n=e("bitfield");var a=e("debug")("bittorrent-protocol");var s=e("xtend");var o=e("hat");var f=e("inherits");var u=e("speedometer");var l=e("stream");var c=4e5;var p=new r("BitTorrent protocol");var d=new r([0,0,0,0]);var h=new r([0,0,0,1,0]);var m=new r([0,0,0,1,1]);var v=new r([0,0,0,1,2]);var g=new r([0,0,0,1,3]);var y=[0,0,0,0,0,0,0,0];var _=[0,0,0,3,9,0,0];function b(e,t,r,i){this.piece=e;this.offset=t;this.length=r;this.callback=i}f(w,l.Duplex);function w(){if(!(this instanceof w))return new w;l.Duplex.call(this);this._debugId=o(32);this._debug("new wire");this.amChoking=true;this.amInterested=false;this.peerChoking=true;this.peerInterested=false;this.peerPieces=new n(0,{grow:c});this.peerExtensions={};this.requests=[];this.peerRequests=[];this.extendedMapping={};this.peerExtendedMapping={};this.extendedHandshake={};this.peerExtendedHandshake={};this._ext={};this._nextExt=1;this.uploaded=0;this.downloaded=0;this.uploadSpeed=u();this.downloadSpeed=u();this._keepAliveInterval=null;this._timeout=null;this._timeoutMs=0;this.destroyed=false;this._finished=false;this._buffer=[];this._bufferSize=0;this._parser=null;this._parserSize=0;this.on("finish",this._onfinish);this._parseHandshake()}w.prototype.setKeepAlive=function(e){this._debug("setKeepAlive %s",e);clearInterval(this._keepAliveInterval);if(e===false)return;this._keepAliveInterval=setInterval(this.keepAlive.bind(this),6e4)};w.prototype.setTimeout=function(e,t){this._debug("setTimeout ms=%d unref=%s",e,t);this._clearTimeout();this._timeoutMs=e;this._timeoutUnref=!!t;this._updateTimeout()};w.prototype.destroy=function(){if(this.destroyed)return;this.destroyed=true;this._debug("destroy");this.emit("close");this.end()};w.prototype.end=function(){this._debug("end");this._onUninterested();this._onChoke();l.Duplex.prototype.end.apply(this,arguments)};w.prototype.use=function(e){var t=e.prototype.name;if(!t){throw new Error('Extension class requires a "name" property on the prototype')}this._debug("use extension.name=%s",t);var r=this._nextExt;var i=new e(this);function n(){}if(typeof i.onHandshake!=="function"){i.onHandshake=n}if(typeof i.onExtendedHandshake!=="function"){i.onExtendedHandshake=n}if(typeof i.onMessage!=="function"){i.onMessage=n}this.extendedMapping[r]=t;this._ext[t]=i;this[t]=i;this._nextExt+=1};w.prototype.keepAlive=function(){this._debug("keep-alive");this._push(d)};w.prototype.handshake=function(e,t,i){if(typeof e==="string")e=new r(e,"hex");if(typeof t==="string")t=new r(t,"hex");if(e.length!==20||t.length!==20){throw new Error("infoHash and peerId MUST have length 20")}this._debug("handshake i=%s p=%s exts=%o",e.toString("hex"),t.toString("hex"),i);var n=new r(y);n[5]|=16;if(i&&i.dht)n[7]|=1;this._push(r.concat([p,n,e,t]));this._handshakeSent=true;if(this.peerExtensions.extended){this._sendExtendedHandshake()}};w.prototype._sendExtendedHandshake=function(){var e=s(this.extendedHandshake);e.m={};for(var t in this.extendedMapping){var r=this.extendedMapping[t];e.m[r]=Number(t)}this.extended(0,i.encode(e))};w.prototype.choke=function(){if(this.amChoking)return;this.amChoking=true;this._debug("choke");this.peerRequests.splice(0,this.peerRequests.length);this._push(h)};w.prototype.unchoke=function(){if(!this.amChoking)return;this.amChoking=false;this._debug("unchoke");this._push(m)};w.prototype.interested=function(){if(this.amInterested)return;this.amInterested=true;this._debug("interested");this._push(v)};w.prototype.uninterested=function(){if(!this.amInterested)return;this.amInterested=false;this._debug("uninterested");this._push(g)};w.prototype.have=function(e){this._debug("have %d",e);this._message(4,[e],null)};w.prototype.bitfield=function(e){this._debug("bitfield");if(!r.isBuffer(e))e=e.buffer;this._message(5,[],e)};w.prototype.request=function(e,t,r,i){if(!i)i=function(){};if(this._finished)return i(new Error("wire is closed"));if(this.peerChoking)return i(new Error("peer is choking"));this._debug("request index=%d offset=%d length=%d",e,t,r);this.requests.push(new b(e,t,r,i));this._updateTimeout();this._message(6,[e,t,r],null)};w.prototype.piece=function(e,t,r){this._debug("piece index=%d offset=%d",e,t);this.uploaded+=r.length;this.uploadSpeed(r.length);this.emit("upload",r.length);this._message(7,[e,t],r)};w.prototype.cancel=function(e,t,r){this._debug("cancel index=%d offset=%d length=%d",e,t,r);this._callback(x(this.requests,e,t,r),new Error("request was cancelled"),null);this._message(8,[e,t,r],null)};w.prototype.port=function(e){this._debug("port %d",e);var t=new r(_);t.writeUInt16BE(e,5);this._push(t)};w.prototype.extended=function(e,t){this._debug("extended ext=%s",e);if(typeof e==="string"&&this.peerExtendedMapping[e]){e=this.peerExtendedMapping[e]}if(typeof e==="number"){var n=new r([e]);var a=r.isBuffer(t)?t:i.encode(t);this._message(20,[],r.concat([n,a]))}else{throw new Error("Unrecognized extension: "+e)}};w.prototype._onKeepAlive=function(){this._debug("got keep-alive");this.emit("keep-alive")};w.prototype._onHandshake=function(e,t,r){this._debug("got handshake i=%s p=%s exts=%o",e.toString("hex"),t.toString("hex"),r);this.peerId=t;this.peerExtensions=r;this.emit("handshake",e,t,r);var i;for(i in this._ext){this._ext[i].onHandshake(e,t,r)}if(r.extended&&this._handshakeSent){this._sendExtendedHandshake()}};w.prototype._onChoke=function(){this.peerChoking=true;this._debug("got choke");this.emit("choke");while(this.requests.length){this._callback(this.requests.shift(),new Error("peer is choking"),null)}};w.prototype._onUnchoke=function(){this.peerChoking=false;this._debug("got unchoke");this.emit("unchoke")};w.prototype._onInterested=function(){this.peerInterested=true;this._debug("got interested");this.emit("interested")};w.prototype._onUninterested=function(){this.peerInterested=false;this._debug("got uninterested");this.emit("uninterested")};w.prototype._onHave=function(e){if(this.peerPieces.get(e))return;this._debug("got have %d",e);this.peerPieces.set(e,true);this.emit("have",e)};w.prototype._onBitField=function(e){this.peerPieces=new n(e);this._debug("got bitfield");this.emit("bitfield",this.peerPieces)};w.prototype._onRequest=function(e,t,r){if(this.amChoking)return;this._debug("got request index=%d offset=%d length=%d",e,t,r);var i=function(i,a){if(n!==x(this.peerRequests,e,t,r))return;if(i)return;this.piece(e,t,a)}.bind(this);var n=new b(e,t,r,i);this.peerRequests.push(n);this.emit("request",e,t,r,i)};w.prototype._onPiece=function(e,t,r){this._debug("got piece index=%d offset=%d",e,t);this._callback(x(this.requests,e,t,r.length),null,r);this.downloaded+=r.length;this.downloadSpeed(r.length);this.emit("download",r.length);this.emit("piece",e,t,r)};w.prototype._onCancel=function(e,t,r){this._debug("got cancel index=%d offset=%d length=%d",e,t,r);x(this.peerRequests,e,t,r);this.emit("cancel",e,t,r)};w.prototype._onPort=function(e){this._debug("got port %d",e);this.emit("port",e)};w.prototype._onExtended=function(e,t){if(e===0){var r;try{r=i.decode(t)}catch(n){this._debug("ignoring invalid extended handshake: %s",n.message||n)}if(!r)return;this.peerExtendedHandshake=r;var a;if(typeof r.m==="object"){for(a in r.m){this.peerExtendedMapping[a]=Number(r.m[a].toString())}}for(a in this._ext){if(this.peerExtendedMapping[a]){this._ext[a].onExtendedHandshake(this.peerExtendedHandshake)}}this._debug("got extended handshake");this.emit("extended","handshake",this.peerExtendedHandshake)}else{if(this.extendedMapping[e]){e=this.extendedMapping[e];if(this._ext[e]){this._ext[e].onMessage(t)}}this._debug("got extended message ext=%s",e);this.emit("extended",e,t)}};w.prototype._onTimeout=function(){this._debug("request timed out");this._callback(this.requests.shift(),new Error("request has timed out"),null);this.emit("timeout")};w.prototype._push=function(e){if(this._finished)return;return this.push(e)};w.prototype._write=function(e,t,i){this._bufferSize+=e.length;this._buffer.push(e);while(this._bufferSize>=this._parserSize){var n=this._buffer.length===1?this._buffer[0]:r.concat(this._buffer);this._bufferSize-=this._parserSize;this._buffer=this._bufferSize?[n.slice(this._parserSize)]:[];this._parser(n.slice(0,this._parserSize))}i(null)};w.prototype._read=function(){};w.prototype._callback=function(e,t,r){if(!e)return;this._clearTimeout();if(!this.peerChoking&&!this._finished)this._updateTimeout();e.callback(t,r)};w.prototype._clearTimeout=function(){if(!this._timeout)return;clearTimeout(this._timeout);this._timeout=null};w.prototype._updateTimeout=function(){if(!this._timeoutMs||!this.requests.length||this._timeout)return;this._timeout=setTimeout(this._onTimeout.bind(this),this._timeoutMs);if(this._timeoutUnref&&this._timeout.unref)this._timeout.unref()};w.prototype._parse=function(e,t){this._parserSize=e;this._parser=t};w.prototype._message=function(e,t,i){var n=i?i.length:0;var a=new r(5+4*t.length);a.writeUInt32BE(a.length+n-4,0);a[4]=e;for(var s=0;s<t.length;s++){a.writeUInt32BE(t[s],5+4*s)}this._push(a);if(i)this._push(i)};w.prototype._onmessagelength=function(e){var t=e.readUInt32BE(0);if(t>0){this._parse(t,this._onmessage)}else{this._onKeepAlive();this._parse(4,this._onmessagelength)}};w.prototype._onmessage=function(e){this._parse(4,this._onmessagelength);switch(e[0]){case 0:return this._onChoke();case 1:return this._onUnchoke();case 2:return this._onInterested();case 3:return this._onUninterested();case 4:return this._onHave(e.readUInt32BE(1));case 5:return this._onBitField(e.slice(1));case 6:return this._onRequest(e.readUInt32BE(1),e.readUInt32BE(5),e.readUInt32BE(9));case 7:return this._onPiece(e.readUInt32BE(1),e.readUInt32BE(5),e.slice(9));case 8:return this._onCancel(e.readUInt32BE(1),e.readUInt32BE(5),e.readUInt32BE(9));case 9:return this._onPort(e.readUInt16BE(1));case 20:return this._onExtended(e.readUInt8(1),e.slice(2));default:this._debug("got unknown message");return this.emit("unknownmessage",e)}};w.prototype._parseHandshake=function(){this._parse(1,function(e){var t=e.readUInt8(0);this._parse(t+48,function(e){var r=e.slice(0,t);if(r.toString()!=="BitTorrent protocol"){this._debug("Error: wire not speaking BitTorrent protocol (%s)",r.toString());this.end();return}e=e.slice(t);this._onHandshake(e.slice(8,28),e.slice(28,48),{dht:!!(e[7]&1),extended:!!(e[5]&16)});this._parse(4,this._onmessagelength)}.bind(this))}.bind(this))};w.prototype._onfinish=function(){this._finished=true;this.push(null);while(this.read()){}clearInterval(this._keepAliveInterval);this._parse(Number.MAX_VALUE,function(){});this.peerRequests=[];while(this.requests.length){this._callback(this.requests.shift(),new Error("wire was closed"),null)}};w.prototype._debug=function(){var e=[].slice.call(arguments);e[0]="["+this._debugId+"] "+e[0];a.apply(null,e)};function x(e,t,r,i){for(var n=0;n<e.length;n++){var a=e[n];if(a.piece!==t||a.offset!==r||a.length!==i)continue;if(n===0)e.shift();else e.splice(n,1);return a}return null}}).call(this,e("buffer").Buffer)},{bencode:15,bitfield:9,buffer:39,debug:121,hat:127,inherits:129,speedometer:165,stream:67,xtend:181}],15:[function(e,t,r){t.exports={encode:e("./lib/encode"),decode:e("./lib/decode")}},{"./lib/decode":16,"./lib/encode":18}],16:[function(e,t,r){(function(r){var i=e("./dict");function n(e,t){n.position=0;n.encoding=t||null;n.data=!r.isBuffer(e)?new r(e):e;return n.next()}n.position=0;n.data=null;n.encoding=null;n.next=function(){switch(n.data[n.position]){case 100:return n.dictionary();break;case 108:return n.list();break;case 105:return n.integer();break;default:return n.bytes();break}};n.find=function(e){var t=n.position;var r=n.data.length;var i=n.data;while(t<r){if(i[t]===e)return t;t++}throw new Error('Invalid data: Missing delimiter "'+String.fromCharCode(e)+'" [0x'+e.toString(16)+"]")};n.dictionary=function(){n.position++;var e=new i;while(n.data[n.position]!==101){e.binarySet(n.bytes(),n.next())}n.position++;return e};n.list=function(){n.position++;var e=[];while(n.data[n.position]!==101){e.push(n.next())}n.position++;return e};n.integer=function(){var e=n.find(101);var t=n.data.toString("ascii",n.position+1,e);n.position+=e+1-n.position;return parseInt(t,10)};n.bytes=function(){var e=n.find(58);var t=parseInt(n.data.toString("ascii",n.position,e),10);var r=++e+t;n.position=r;return n.encoding?n.data.toString(n.encoding,e,r):n.data.slice(e,r)};t.exports=n}).call(this,e("buffer").Buffer)},{"./dict":17,buffer:39}],17:[function(e,t,r){var i=t.exports=function n(){Object.defineProperty(this,"_keys",{enumerable:false,value:[]})};i.prototype.binaryKeys=function a(){return this._keys.slice()};i.prototype.binarySet=function s(e,t){this._keys.push(e);this[e]=t}},{}],18:[function(e,t,r){(function(e){function r(t){var i=[];r._encode(i,t);return e.concat(i)}r._floatConversionDetected=false;r._encode=function(t,i){if(e.isBuffer(i)){t.push(new e(i.length+":"));t.push(i);return}switch(typeof i){case"string":r.bytes(t,i);break;case"number":r.number(t,i);break;case"object":i.constructor===Array?r.list(t,i):r.dict(t,i);break}};var i=new e("e"),n=new e("d"),a=new e("l");r.bytes=function(t,r){t.push(new e(e.byteLength(r)+":"+r))};r.number=function(t,i){var n=2147483648;var a=i/n<<0;var s=i%n<<0;var o=a*n+s;t.push(new e("i"+o+"e"));if(o!==i&&!r._floatConversionDetected){r._floatConversionDetected=true;console.warn('WARNING: Possible data corruption detected with value "'+i+'":','Bencoding only defines support for integers, value was converted to "'+o+'"');console.trace()}};r.dict=function(e,t){e.push(n);var a=0;var s;var o=Object.keys(t).sort();var f=o.length;for(;a<f;a++){s=o[a];r.bytes(e,s);r._encode(e,t[s])}e.push(i)};r.list=function(e,t){var n=0,s=1;var o=t.length;e.push(a);for(;n<o;n++){r._encode(e,t[n])}e.push(i)};t.exports=r}).call(this,e("buffer").Buffer)},{buffer:39}],19:[function(e,t,r){var i=e("wrappy");t.exports=i(a);var n=e("asap");function a(e){var t=true;n(function(){t=false});return function r(){var r=arguments;var i=this;if(t)n(function(){e.apply(i,r)});else e.apply(i,r)}}},{asap:20,wrappy:22}],20:[function(e,t,r){"use strict";var i=e("./raw");var n=[];var a=[];var s=i.makeRequestCallFromTimer(o);function o(){if(a.length){throw a.shift()}}t.exports=f;function f(e){var t;if(n.length){t=n.pop()}else{t=new u}t.task=e;i(t)}function u(){this.task=null}u.prototype.call=function(){try{this.task.call()}catch(e){if(f.onerror){f.onerror(e)}else{a.push(e);s()}}finally{this.task=null;n[n.length]=this}}},{"./raw":21}],21:[function(e,t,r){(function(e){"use strict";t.exports=r;function r(e){if(!i.length){a();n=true}i[i.length]=e}var i=[];var n=false;var a;var s=0;var o=1024;function f(){while(s<i.length){var 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i==="function"&&i!==n){Object.keys(n).forEach(function(e){i[e]=n[e]})}return i}}},{}],23:[function(e,t,r){(function(r,i){t.exports=m;var n=e("events").EventEmitter;var a=e("debug")("bittorrent-tracker");var s=e("inherits");var o=e("once");var f=e("run-parallel");var u=e("uniq");var l=e("url");var c=e("./lib/common");var p=e("./lib/client/http-tracker");var d=e("./lib/client/udp-tracker");var h=e("./lib/client/websocket-tracker");s(m,n);function m(e,t,s,o){var f=this;if(!(f instanceof m))return new m(e,t,s,o);n.call(f);if(!o)o={};f._peerId=i.isBuffer(e)?e:new i(e,"hex");f._peerIdHex=f._peerId.toString("hex");f._peerIdBinary=f._peerId.toString("binary");f._infoHash=i.isBuffer(s.infoHash)?s.infoHash:new i(s.infoHash,"hex");f._infoHashHex=f._infoHash.toString("hex");f._infoHashBinary=f._infoHash.toString("binary");f.torrentLength=s.length;f.destroyed=false;f._port=t;f._rtcConfig=o.rtcConfig;f._wrtc=o.wrtc;a("new client %s",f._infoHashHex);var c=!!f._wrtc||typeof window!=="undefined";var v=typeof s.announce==="string"?[s.announce]:s.announce==null?[]:s.announce;v=v.map(function(e){e=e.toString();if(e[e.length-1]==="/"){e=e.substring(0,e.length-1)}return e});v=u(v);f._trackers=v.map(function(e){var t=l.parse(e).protocol;if((t==="http:"||t==="https:")&&typeof p==="function"){return new p(f,e)}else if(t==="udp:"&&typeof d==="function"){return new d(f,e)}else if((t==="ws:"||t==="wss:")&&c){return new h(f,e)}else{r.nextTick(function(){var t=new Error("unsupported tracker protocol for "+e);f.emit("warning",t)})}return null}).filter(Boolean)}m.scrape=function(e,t,r){r=o(r);var n=new i("01234567890123456789");var a=6881;var s={infoHash:Array.isArray(t)?t[0]:t,announce:[e]};var f=new m(n,a,s);f.once("error",r);var u=Array.isArray(t)?t.length:1;var l={};f.on("scrape",function(e){u-=1;l[e.infoHash]=e;if(u===0){f.destroy();var t=Object.keys(l);if(t.length===1){r(null,l[t[0]])}else{r(null,l)}}});t=Array.isArray(t)?t.map(function(e){return new i(e,"hex")}):new i(t,"hex");f.scrape({infoHash:t})};m.prototype.start=function(e){var t=this;a("send `start`");e=t._defaultAnnounceOpts(e);e.event="started";t._announce(e);t._trackers.forEach(function(e){e.setInterval()})};m.prototype.stop=function(e){var t=this;a("send `stop`");e=t._defaultAnnounceOpts(e);e.event="stopped";t._announce(e)};m.prototype.complete=function(e){var t=this;a("send `complete`");if(!e)e={};if(e.downloaded==null&&t.torrentLength!=null){e.downloaded=t.torrentLength}e=t._defaultAnnounceOpts(e);e.event="completed";t._announce(e)};m.prototype.update=function(e){var t=this;a("send `update`");e=t._defaultAnnounceOpts(e);if(e.event)delete e.event;t._announce(e)};m.prototype._announce=function(e){var t=this;t._trackers.forEach(function(t){t.announce(e)})};m.prototype.scrape=function(e){var t=this;a("send `scrape`");if(!e)e={};t._trackers.forEach(function(t){t.scrape(e)})};m.prototype.setInterval=function(e){var t=this;a("setInterval %d",e);t._trackers.forEach(function(t){t.setInterval(e)})};m.prototype.destroy=function(e){var t=this;if(t.destroyed)return;t.destroyed=true;a("destroy");var r=t._trackers.map(function(e){return function(t){e.destroy(t)}});f(r,e);t._trackers=[]};m.prototype._defaultAnnounceOpts=function(e){var t=this;if(!e)e={};if(e.numwant==null)e.numwant=c.DEFAULT_ANNOUNCE_PEERS;if(e.uploaded==null)e.uploaded=0;if(e.downloaded==null)e.downloaded=0;if(e.left==null&&t.torrentLength!=null){e.left=t.torrentLength-e.downloaded}return e}}).call(this,e("_process"),e("buffer").Buffer)},{"./lib/client/http-tracker":38,"./lib/client/udp-tracker":38,"./lib/client/websocket-tracker":25,"./lib/common":27,_process:49,buffer:39,debug:121,events:43,inherits:129,once:29,"run-parallel":155,uniq:168,url:78}],24:[function(e,t,r){t.exports=a;var i=e("events").EventEmitter;var n=e("inherits");n(a,i);function a(e,t){var r=this;i.call(r);r.client=e;r.announceUrl=t;r.interval=null;r.destroyed=false}a.prototype.setInterval=function(e){var t=this;if(t.interval)return;if(e==null)e=t.DEFAULT_ANNOUNCE_INTERVAL;clearInterval(t.interval);if(e){var r=t.announce.bind(t,t.client._defaultAnnounceOpts());t.interval=setInterval(r,e);if(t.interval.unref)t.interval.unref()}}},{events:43,inherits:129}],25:[function(e,t,r){t.exports=d;var i=e("debug")("bittorrent-tracker:websocket-tracker");var n=e("hat");var a=e("inherits");var s=e("simple-peer");var o=e("simple-websocket");var f=e("../common");var u=e("./tracker");var l={};var c=30*1e3;var p=5*1e3;a(d,u);function d(e,t,r){var n=this;u.call(n,e,t);i("new websocket tracker %s",t);n.peers={};n.socket=null;n.reconnecting=false;n._openSocket()}d.prototype.DEFAULT_ANNOUNCE_INTERVAL=30*1e3;d.prototype.announce=function(e){var t=this;if(t.destroyed||t.reconnecting)return;if(!t.socket.connected){return t.socket.once("connect",t.announce.bind(t,e))}var r=Math.min(e.numwant,10);t._generateOffers(r,function(i){var n={numwant:r,uploaded:e.uploaded||0,downloaded:e.downloaded,event:e.event,info_hash:t.client._infoHashBinary,peer_id:t.client._peerIdBinary,offers:i};if(t._trackerId)n.trackerid=t._trackerId;t._send(n)})};d.prototype.scrape=function(e){var t=this;if(t.destroyed||t.reconnecting)return;t._onSocketError(new Error("scrape not supported "+t.announceUrl))};d.prototype.destroy=function(e){var t=this;if(t.destroyed)return;t.destroyed=true;clearInterval(t.interval);l[t.announceUrl]=null;t.socket.removeListener("connect",t._onSocketConnectBound);t.socket.removeListener("data",t._onSocketDataBound);t.socket.removeListener("close",t._onSocketCloseBound);t.socket.removeListener("error",t._onSocketErrorBound);t._onSocketConnectBound=null;t._onSocketErrorBound=null;t._onSocketDataBound=null;t._onSocketCloseBound=null;t.socket.on("error",h);try{t.socket.destroy(e)}catch(r){if(e)e()}t.socket=null};d.prototype._openSocket=function(){var e=this;e.destroyed=false;e._onSocketConnectBound=e._onSocketConnect.bind(e);e._onSocketErrorBound=e._onSocketError.bind(e);e._onSocketDataBound=e._onSocketData.bind(e);e._onSocketCloseBound=e._onSocketClose.bind(e);e.socket=l[e.announceUrl];if(!e.socket){e.socket=l[e.announceUrl]=new o(e.announceUrl);e.socket.on("connect",e._onSocketConnectBound)}e.socket.on("data",e._onSocketDataBound);e.socket.on("close",e._onSocketCloseBound);e.socket.on("error",e._onSocketErrorBound)};d.prototype._onSocketConnect=function(){var e=this;if(e.destroyed)return;if(e.reconnecting){e.reconnecting=false;e.announce(e.client._defaultAnnounceOpts())}};d.prototype._onSocketData=function(e){var t=this;if(t.destroyed)return;if(!(typeof e==="object"&&e!==null)){return t.client.emit("warning",new Error("Invalid tracker response"))}if(e.info_hash!==t.client._infoHashBinary){i("ignoring websocket data from %s for %s (looking for %s: reused socket)",t.announceUrl,f.binaryToHex(e.info_hash),t.client._infoHashHex);return}if(e.peer_id&&e.peer_id===t.client._peerIdBinary){return}i("received %s from %s for %s",JSON.stringify(e),t.announceUrl,t.client._infoHashHex);

var r=e["failure reason"];if(r)return t.client.emit("warning",new Error(r));var n=e["warning message"];if(n)t.client.emit("warning",new Error(n));var a=e.interval||e["min interval"];if(a)t.setInterval(a*1e3);var o=e["tracker id"];if(o){t._trackerId=o}if(e.complete){t.client.emit("update",{announce:t.announceUrl,complete:e.complete,incomplete:e.incomplete})}var u;if(e.offer&&e.peer_id){u=new s({trickle:false,config:t.client._rtcConfig,wrtc:t.client._wrtc});u.id=f.binaryToHex(e.peer_id);u.once("signal",function(r){var i={info_hash:t.client._infoHashBinary,peer_id:t.client._peerIdBinary,to_peer_id:e.peer_id,answer:r,offer_id:e.offer_id};if(t._trackerId)i.trackerid=t._trackerId;t._send(i)});u.signal(e.offer);t.client.emit("peer",u)}if(e.answer&&e.peer_id){u=t.peers[f.binaryToHex(e.offer_id)];if(u){u.id=f.binaryToHex(e.peer_id);u.signal(e.answer);t.client.emit("peer",u)}else{i("got unexpected answer: "+JSON.stringify(e.answer))}}};d.prototype._onSocketClose=function(){var e=this;if(e.destroyed)return;e.destroy();e._startReconnectTimer()};d.prototype._onSocketError=function(e){var t=this;if(t.destroyed)return;t.destroy();t.client.emit("warning",e);t._startReconnectTimer()};d.prototype._startReconnectTimer=function(){var e=this;var t=Math.floor(Math.random()*c)+p;e.reconnecting=true;var r=setTimeout(function(){e._openSocket()},t);if(r.unref)r.unref();i("reconnecting socket in %s ms",t)};d.prototype._send=function(e){var t=this;if(t.destroyed)return;var r=JSON.stringify(e);i("send %s",r);t.socket.send(r)};d.prototype._generateOffers=function(e,t){var r=this;var a=[];i("generating %s offers",e);for(var o=0;o<e;++o){u()}function u(){var e=n(160);var t=r.peers[e]=new s({initiator:true,trickle:false,config:r.client._rtcConfig,wrtc:r.client._wrtc});t.once("signal",function(t){a.push({offer:t,offer_id:f.hexToBinary(e)});l()})}function l(){if(a.length===e){i("generated %s offers",e);t(a)}}};function h(){}},{"../common":27,"./tracker":24,debug:121,hat:127,inherits:129,"simple-peer":30,"simple-websocket":34}],26:[function(e,t,r){(function(t){var i=e("querystring");r.IPV4_RE=/^[\d\.]+$/;r.IPV6_RE=/^[\da-fA-F:]+$/;r.CONNECTION_ID=t.concat([n(1047),n(655366528)]);r.ACTIONS={CONNECT:0,ANNOUNCE:1,SCRAPE:2,ERROR:3};r.EVENTS={update:0,completed:1,started:2,stopped:3};r.EVENT_IDS={0:"update",1:"completed",2:"started",3:"stopped"};r.EVENT_NAMES={update:"update",completed:"complete",started:"start",stopped:"stop"};function n(e){var r=new t(4);r.writeUInt32BE(e,0);return r}r.toUInt32=n;r.querystringParse=function(e){var t=i.unescape;i.unescape=unescape;var r=i.parse(e);i.unescape=t;return r};r.querystringStringify=function(e){var t=i.escape;i.escape=escape;var r=i.stringify(e);r=r.replace(/[\@\*\/\+]/g,function(e){return"%"+e.charCodeAt(0).toString(16).toUpperCase()});i.escape=t;return r}}).call(this,e("buffer").Buffer)},{buffer:39,querystring:53}],27:[function(e,t,r){(function(t){var i=e("xtend/mutable");r.DEFAULT_ANNOUNCE_PEERS=50;r.MAX_ANNOUNCE_PEERS=82;r.binaryToHex=function(e){return new t(e,"binary").toString("hex")};r.hexToBinary=function(e){return new t(e,"hex").toString("binary")};var n=e("./common-node");i(r,n)}).call(this,e("buffer").Buffer)},{"./common-node":26,buffer:39,"xtend/mutable":182}],28:[function(e,t,r){arguments[4][22][0].apply(r,arguments)},{dup:22}],29:[function(e,t,r){var i=e("wrappy");t.exports=i(n);n.proto=n(function(){Object.defineProperty(Function.prototype,"once",{value:function(){return n(this)},configurable:true})});function n(e){var t=function(){if(t.called)return t.value;t.called=true;return t.value=e.apply(this,arguments)};t.called=false;return t}},{wrappy:28}],30:[function(e,t,r){(function(r){t.exports=c;var i=e("debug")("simple-peer");var n=e("get-browser-rtc");var a=e("hat");var s=e("inherits");var o=e("is-typedarray");var f=e("once");var u=e("stream");var l=e("typedarray-to-buffer");s(c,u.Duplex);function c(e){var t=this;if(!(t instanceof c))return new c(e);t._debug("new peer %o",e);if(!e)e={};e.allowHalfOpen=false;if(e.highWaterMark==null)e.highWaterMark=1024*1024;u.Duplex.call(t,e);t.initiator=e.initiator||false;t.channelConfig=e.channelConfig||c.channelConfig;t.channelName=e.channelName||a(160);if(!e.initiator)t.channelName=null;t.config=e.config||c.config;t.constraints=e.constraints||c.constraints;t.reconnectTimer=e.reconnectTimer||0;t.sdpTransform=e.sdpTransform||function(e){return e};t.stream=e.stream||false;t.trickle=e.trickle!==undefined?e.trickle:true;t.destroyed=false;t.connected=false;t.remoteAddress=undefined;t.remoteFamily=undefined;t.remotePort=undefined;t.localAddress=undefined;t.localPort=undefined;t._wrtc=e.wrtc||n();if(!t._wrtc){if(typeof window==="undefined"){throw new Error("No WebRTC support: Specify `opts.wrtc` option in this environment")}else{throw new Error("No WebRTC support: Not a supported browser")}}t._maxBufferedAmount=e.highWaterMark;t._pcReady=false;t._channelReady=false;t._iceComplete=false;t._channel=null;t._pendingCandidates=[];t._chunk=null;t._cb=null;t._interval=null;t._reconnectTimeout=null;t._pc=new t._wrtc.RTCPeerConnection(t.config,t.constraints);t._pc.oniceconnectionstatechange=t._onIceConnectionStateChange.bind(t);t._pc.onsignalingstatechange=t._onSignalingStateChange.bind(t);t._pc.onicecandidate=t._onIceCandidate.bind(t);if(t.stream)t._pc.addStream(t.stream);t._pc.onaddstream=t._onAddStream.bind(t);if(t.initiator){t._setupData({channel:t._pc.createDataChannel(t.channelName,t.channelConfig)});t._pc.onnegotiationneeded=f(t._createOffer.bind(t));if(typeof window==="undefined"||!window.webkitRTCPeerConnection){t._pc.onnegotiationneeded()}}else{t._pc.ondatachannel=t._setupData.bind(t)}t.on("finish",function(){if(t.connected){setTimeout(function(){t._destroy()},100)}else{t.once("connect",function(){setTimeout(function(){t._destroy()},100)})}})}c.WEBRTC_SUPPORT=!!n();c.config={iceServers:[{url:"stun:23.21.150.121",urls:"stun:23.21.150.121"}]};c.constraints={};c.channelConfig={};Object.defineProperty(c.prototype,"bufferSize",{get:function(){var e=this;return e._channel&&e._channel.bufferedAmount||0}});c.prototype.address=function(){var e=this;return{port:e.localPort,family:"IPv4",address:e.localAddress}};c.prototype.signal=function(e){var t=this;if(t.destroyed)throw new Error("cannot signal after peer is destroyed");if(typeof e==="string"){try{e=JSON.parse(e)}catch(r){e={}}}t._debug("signal()");function i(e){try{t._pc.addIceCandidate(new t._wrtc.RTCIceCandidate(e),p,t._onError.bind(t))}catch(r){t._destroy(new Error("error adding candidate: "+r.message))}}if(e.sdp){t._pc.setRemoteDescription(new t._wrtc.RTCSessionDescription(e),function(){if(t.destroyed)return;if(t._pc.remoteDescription.type==="offer")t._createAnswer();t._pendingCandidates.forEach(i);t._pendingCandidates=[]},t._onError.bind(t))}if(e.candidate){if(t._pc.remoteDescription)i(e.candidate);else t._pendingCandidates.push(e.candidate)}if(!e.sdp&&!e.candidate){t._destroy(new Error("signal() called with invalid signal data"))}};c.prototype.send=function(e){var t=this;if(!o.strict(e)&&!(e instanceof ArrayBuffer)&&!r.isBuffer(e)&&typeof e!=="string"&&(typeof Blob==="undefined"||!(e instanceof Blob))){e=JSON.stringify(e)}if(r.isBuffer(e)&&!o.strict(e)){e=new Uint8Array(e)}var i=e.length||e.byteLength||e.size;t._channel.send(e);t._debug("write: %d bytes",i)};c.prototype.destroy=function(e){var t=this;t._destroy(null,e)};c.prototype._destroy=function(e,t){var r=this;if(r.destroyed)return;if(t)r.once("close",t);r._debug("destroy (error: 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write after peer is destroyed"));if(i.connected){try{i.send(e)}catch(n){return i._onError(n)}if(i._channel.bufferedAmount>i._maxBufferedAmount){i._debug("start backpressure: bufferedAmount %d",i._channel.bufferedAmount);i._cb=r}else{r(null)}}else{i._debug("write before connect");i._chunk=e;i._cb=r}};c.prototype._createOffer=function(){var e=this;if(e.destroyed)return;e._pc.createOffer(function(t){if(e.destroyed)return;t.sdp=e.sdpTransform(t.sdp);e._pc.setLocalDescription(t,p,e._onError.bind(e));var r=function(){var r=e._pc.localDescription||t;e._debug("signal");e.emit("signal",{type:r.type,sdp:r.sdp})};if(e.trickle||e._iceComplete)r();else e.once("_iceComplete",r)},e._onError.bind(e),e.offerConstraints)};c.prototype._createAnswer=function(){var e=this;if(e.destroyed)return;e._pc.createAnswer(function(t){if(e.destroyed)return;t.sdp=e.sdpTransform(t.sdp);e._pc.setLocalDescription(t,p,e._onError.bind(e));var r=function(){var 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s=this.search||a&&"?"+a||"";if(t&&t.substr(-1)!==":")t+=":";if(this.slashes||(!t||g[t])&&n!==false){n="//"+(n||"");if(r&&r.charAt(0)!=="/")r="/"+r}else if(!n){n=""}if(i&&i.charAt(0)!=="#")i="#"+i;if(s&&s.charAt(0)!=="?")s="?"+s;r=r.replace(/[?#]/g,function(e){return encodeURIComponent(e)});s=s.replace("#","%23");return t+n+r+s+i};function w(e,t){return _(e,false,true).resolve(t)}n.prototype.resolve=function(e){return this.resolveObject(_(e,false,true)).format()};function x(e,t){if(!e)return t;return _(e,false,true).resolveObject(t)}n.prototype.resolveObject=function(e){

if(k(e)){var t=new n;t.parse(e,false,true);e=t}var r=new n;Object.keys(this).forEach(function(e){r[e]=this[e]},this);r.hash=e.hash;if(e.href===""){r.href=r.format();return r}if(e.slashes&&!e.protocol){Object.keys(e).forEach(function(t){if(t!=="protocol")r[t]=e[t]});if(g[r.protocol]&&r.hostname&&!r.pathname){r.path=r.pathname="/"}r.href=r.format();return r}if(e.protocol&&e.protocol!==r.protocol){if(!g[e.protocol]){Object.keys(e).forEach(function(t){r[t]=e[t]});r.href=r.format();return r}r.protocol=e.protocol;if(!e.host&&!v[e.protocol]){var i=(e.pathname||"").split("/");while(i.length&&!(e.host=i.shift()));if(!e.host)e.host="";if(!e.hostname)e.hostname="";if(i[0]!=="")i.unshift("");if(i.length<2)i.unshift("");r.pathname=i.join("/")}else{r.pathname=e.pathname}r.search=e.search;r.query=e.query;r.host=e.host||"";r.auth=e.auth;r.hostname=e.hostname||e.host;r.port=e.port;if(r.pathname||r.search){var a=r.pathname||"";var s=r.search||"";r.path=a+s}r.slashes=r.slashes||e.slashes;r.href=r.format();return r}var o=r.pathname&&r.pathname.charAt(0)==="/",f=e.host||e.pathname&&e.pathname.charAt(0)==="/",u=f||o||r.host&&e.pathname,l=u,c=r.pathname&&r.pathname.split("/")||[],i=e.pathname&&e.pathname.split("/")||[],p=r.protocol&&!g[r.protocol];if(p){r.hostname="";r.port=null;if(r.host){if(c[0]==="")c[0]=r.host;else c.unshift(r.host)}r.host="";if(e.protocol){e.hostname=null;e.port=null;if(e.host){if(i[0]==="")i[0]=e.host;else i.unshift(e.host)}e.host=null}u=u&&(i[0]===""||c[0]==="")}if(f){r.host=e.host||e.host===""?e.host:r.host;r.hostname=e.hostname||e.hostname===""?e.hostname:r.hostname;r.search=e.search;r.query=e.query;c=i}else if(i.length){if(!c)c=[];c.pop();c=c.concat(i);r.search=e.search;r.query=e.query}else if(!A(e.search)){if(p){r.hostname=r.host=c.shift();var d=r.host&&r.host.indexOf("@")>0?r.host.split("@"):false;if(d){r.auth=d.shift();r.host=r.hostname=d.shift()}}r.search=e.search;r.query=e.query;if(!E(r.pathname)||!E(r.search)){r.path=(r.pathname?r.pathname:"")+(r.search?r.search:"")}r.href=r.format();return r}if(!c.length){r.pathname=null;if(r.search){r.path="/"+r.search}else{r.path=null}r.href=r.format();return r}var h=c.slice(-1)[0];var m=(r.host||e.host)&&(h==="."||h==="..")||h==="";var y=0;for(var _=c.length;_>=0;_--){h=c[_];if(h=="."){c.splice(_,1)}else if(h===".."){c.splice(_,1);y++}else if(y){c.splice(_,1);y--}}if(!u&&!l){for(;y--;y){c.unshift("..")}}if(u&&c[0]!==""&&(!c[0]||c[0].charAt(0)!=="/")){c.unshift("")}if(m&&c.join("/").substr(-1)!=="/"){c.push("")}var b=c[0]===""||c[0]&&c[0].charAt(0)==="/";if(p){r.hostname=r.host=b?"":c.length?c.shift():"";var d=r.host&&r.host.indexOf("@")>0?r.host.split("@"):false;if(d){r.auth=d.shift();r.host=r.hostname=d.shift()}}u=u||r.host&&c.length;if(u&&!b){c.unshift("")}if(!c.length){r.pathname=null;r.path=null}else{r.pathname=c.join("/")}if(!E(r.pathname)||!E(r.search)){r.path=(r.pathname?r.pathname:"")+(r.search?r.search:"")}r.auth=e.auth||r.auth;r.slashes=r.slashes||e.slashes;r.href=r.format();return r};n.prototype.parseHost=function(){var e=this.host;var t=s.exec(e);if(t){t=t[0];if(t!==":"){this.port=t.substr(1)}e=e.substr(0,e.length-t.length)}if(e)this.hostname=e};function k(e){return typeof e==="string"}function S(e){return typeof e==="object"&&e!==null}function E(e){return e===null}function A(e){return e==null}},{punycode:50,querystring:53}],79:[function(e,t,r){(function(r){var i=e("inherits");var n=e("readable-stream").Transform;var a=e("defined");t.exports=s;i(s,n);function s(e,t){if(!(this instanceof s))return new s(e,t);n.call(this);if(!t)t={};if(typeof e==="object"){t=e;e=t.size}this.size=e||512;if(t.nopad)this._zeroPadding=false;else this._zeroPadding=a(t.zeroPadding,true);this._buffered=[];this._bufferedBytes=0}s.prototype._transform=function(e,t,i){this._bufferedBytes+=e.length;this._buffered.push(e);while(this._bufferedBytes>=this.size){var n=r.concat(this._buffered);this._bufferedBytes-=this.size;this.push(n.slice(0,this.size));this._buffered=[n.slice(this.size,n.length)]}i()};s.prototype._flush=function(){if(this._bufferedBytes&&this._zeroPadding){var e=new r(this.size-this._bufferedBytes);e.fill(0);this._buffered.push(e);this.push(r.concat(this._buffered));this._buffered=null}else if(this._bufferedBytes){this.push(r.concat(this._buffered));this._buffered=null}this.push(null)}}).call(this,e("buffer").Buffer)},{buffer:39,defined:80,inherits:129,"readable-stream":89}],80:[function(e,t,r){t.exports=function(){for(var e=0;e<arguments.length;e++){if(arguments[e]!==undefined)return 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n=e("core-util-is");n.inherits=e("inherits");n.inherits(a,i);function a(e){if(!(this instanceof a))return new a(e);i.call(this,e)}a.prototype._transform=function(e,t,r){r(null,e)}},{"./_stream_transform":84,"core-util-is":86,inherits:129}],83:[function(e,t,r){(function(r){t.exports=c;var i=e("isarray");var n=e("buffer").Buffer;c.ReadableState=l;var a=e("events").EventEmitter;if(!a.listenerCount)a.listenerCount=function(e,t){return e.listeners(t).length};var s=e("stream");var o=e("core-util-is");o.inherits=e("inherits");var f;var u=e("util");if(u&&u.debuglog){u=u.debuglog("stream")}else{u=function(){}}o.inherits(c,s);function l(t,r){var i=e("./_stream_duplex");t=t||{};var n=t.highWaterMark;var a=t.objectMode?16:16*1024;this.highWaterMark=n||n===0?n:a;this.highWaterMark=~~this.highWaterMark;this.buffer=[];this.length=0;this.pipes=null;this.pipesCount=0;this.flowing=null;this.ended=false;this.endEmitted=false;this.reading=false;this.sync=true;this.needReadable=false;this.emittedReadable=false;this.readableListening=false;this.objectMode=!!t.objectMode;if(r instanceof i)this.objectMode=this.objectMode||!!t.readableObjectMode;this.defaultEncoding=t.defaultEncoding||"utf8";this.ranOut=false;this.awaitDrain=0;this.readingMore=false;this.decoder=null;this.encoding=null;if(t.encoding){if(!f)f=e("string_decoder/").StringDecoder;this.decoder=new f(t.encoding);this.encoding=t.encoding}}function c(t){var r=e("./_stream_duplex");if(!(this instanceof c))return new c(t);this._readableState=new l(t,this);this.readable=true;s.call(this)}c.prototype.push=function(e,t){var r=this._readableState;if(o.isString(e)&&!r.objectMode){t=t||r.defaultEncoding;if(t!==r.encoding){e=new n(e,t);t=""}}return 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Int32Array(t.heap);t.h8=new Int8Array(t.heap);t.core=new i._core({Int32Array:Int32Array,DataView:DataView},{},t.heap);t.buffer=null};m(e||64*1024);var v=function(e,t){var r=new Int32Array(e,t+320,5);r[0]=1732584193;r[1]=-271733879;r[2]=-1732584194;r[3]=271733878;r[4]=-1009589776};var g=function(e,r){var i=a(e);var n=new Int32Array(t.heap,0,i>>2);s(n,e);o(n,e,r);return i};var y=function(e,r,i){c(e)(t.h8,t.h32,r,i,0)};var _=function(e,r,i,n,a){var s=i;if(a){s=g(i,n)}y(e,r,i);t.core.hash(s,t.padMaxChunkLen)};var b=function(e,t){var r=new Int32Array(e,t+320,5);var i=new Int32Array(5);var n=new DataView(i.buffer);n.setInt32(0,r[0],false);n.setInt32(4,r[1],false);n.setInt32(8,r[2],false);n.setInt32(12,r[3],false);n.setInt32(16,r[4],false);return i};var w=this.rawDigest=function(e){var r=e.byteLength||e.length||e.size||0;v(t.heap,t.padMaxChunkLen);var i=0,n=t.maxChunkLen,a;for(i=0;r>i+n;i+=n){_(e,i,n,r,false)}_(e,i,r-i,r,true);return 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t!=="undefined"){t.exports=i}else if(typeof window!=="undefined"){window.Rusha=i}if(typeof FileReaderSync!=="undefined"){var n=new FileReaderSync,a=new i(4*1024*1024);self.onmessage=function o(e){var t,r=e.data.data;try{t=a.digest(r);self.postMessage({id:e.data.id,hash:t})}catch(i){self.postMessage({id:e.data.id,error:i.name})}}}})()}).call(this,typeof global!=="undefined"?global:typeof self!=="undefined"?self:typeof window!=="undefined"?window:{})},{}],165:[function(e,t,r){var i=1;var n=65535;var a=4;var s=function(){i=i+1&n};var o=setInterval(s,1e3/a|0);if(o.unref)o.unref();t.exports=function(e){

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t=this;if(!t.infoHash&&i.isBuffer(e)||typeof e==="string"){t.infoHash=typeof e==="string"?new i(e,"hex"):e}else if(!t.torrent&&e&&e.infoHash){t.torrent=e;t.infoHash=typeof e.infoHash==="string"?new i(e.infoHash,"hex"):e.infoHash}else{return}t.infoHashHex=t.infoHash.toString("hex");n("setTorrent %s",t.infoHashHex);if(t.tracker&&t.tracker!==true){t.tracker.torrentLength=e.length}else{t._createTracker()}if(t.dht){if(t.dht.ready)t._dhtLookupAndAnnounce();else t.dht.on("ready",t._dhtLookupAndAnnounce.bind(t))}};p.prototype.updatePort=function(e){var t=this;if(e===t.port)return;t.port=e;if(t.dht&&t.infoHash){t._performedDHTLookup=false;t._dhtLookupAndAnnounce()}if(t.tracker&&t.tracker!==true){t.tracker.stop();t.tracker.destroy(function(){t._createTracker()})}};p.prototype.stop=function(e){var t=this;var r=[];if(t.tracker&&t.tracker!==true){t.tracker.stop();r.push(function(e){t.tracker.destroy(e)})}if(!t._externalDHT&&t.dht&&t.dht!==true){r.push(function(e){t.dht.destroy(e)})}u(r,e)};p.prototype._createDHT=function(e){var t=this;if(!t._externalDHT)t.dht=new a;l(t.dht,t,["error","warning"]);t.dht.on("peer",function(e,r){if(r===t.infoHashHex)t.emit("peer",e)});if(!t._externalDHT)t.dht.listen(e)};p.prototype._createTracker=function(){var e=this;if(!e.tracker)return;var t=e.torrent?o({announce:[]},e.torrent):{infoHash:e.infoHashHex,announce:[]};if(e.announce)t.announce=t.announce.concat(e.announce);var r={rtcConfig:e.rtcConfig,wrtc:e.wrtc};e.tracker=new c(e.peerId,e.port,t,r);l(e.tracker,e,["peer","warning","error"]);e.tracker.on("update",function(t){e.emit("trackerAnnounce",t)});e.tracker.start()};p.prototype._dhtLookupAndAnnounce=function(){var e=this;if(e._performedDHTLookup)return;e._performedDHTLookup=true;n("dht lookup");e.dht.lookup(e.infoHash,function(t){if(t||!e.port)return;n("dht 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s=1;s<i;++s){a=n;n=e[s];if(t(n,a)){if(s===r){r++;continue}e[r++]=n}}e.length=r;return e}function n(e){var t=1,r=e.length,i=e[0],n=e[0];for(var a=1;a<r;++a,n=i){n=i;i=e[a];if(i!==n){if(a===t){t++;continue}e[t++]=i}}e.length=t;return e}function a(e,t,r){if(e.length===0){return e}if(t){if(!r){e.sort(t)}return i(e,t)}if(!r){e.sort()}return n(e)}t.exports=a},{}],169:[function(e,t,r){(function(r){var i=e("bencode");var n=e("bitfield");var a=e("events").EventEmitter;var s=e("inherits");var o=e("simple-sha1");var f=1e7;var u=1e3;var l=16*1024;t.exports=function(e){s(t,a);function t(t){a.call(this);this._wire=t;this._metadataComplete=false;this._metadataSize=null;this._remainingRejects=null;this._fetching=false;this._bitfield=new n(0,{grow:u});if(r.isBuffer(e)){this.setMetadata(e)}}t.prototype.name="ut_metadata";t.prototype.onHandshake=function(e,t,r){this._infoHash=e;this._infoHashHex=e.toString("hex")};t.prototype.onExtendedHandshake=function(e){if(!e.m||!e.m.ut_metadata){return this.emit("warning",new Error("Peer does not support ut_metadata"))}if(!e.metadata_size){return this.emit("warning",new Error("Peer does not have metadata"))}if(e.metadata_size>f){return this.emit("warning",new Error("Peer gave maliciously large metadata size"))}this._metadataSize=e.metadata_size;this._numPieces=Math.ceil(this._metadataSize/l);this._remainingRejects=this._numPieces*2;if(this._fetching){this._requestPieces()}};t.prototype.onMessage=function(e){var t,r;try{var n=e.toString();var a=n.indexOf("ee")+2;t=i.decode(n.substring(0,a));r=e.slice(a)}catch(s){return}switch(t.msg_type){case 0:this._onRequest(t.piece);break;case 1:this._onData(t.piece,r,t.total_size);break;case 2:this._onReject(t.piece);break}};t.prototype.fetch=function(){if(this._metadataComplete){return}this._fetching=true;if(this._metadataSize){this._requestPieces()}};t.prototype.cancel=function(){this._fetching=false};t.prototype.setMetadata=function(e){if(this._metadataComplete)return true;try{var t=i.decode(e).info;if(t){e=i.encode(t)}}catch(r){}if(this._infoHashHex&&this._infoHashHex!==o.sync(e)){return false}this.cancel();this.metadata=e;this._metadataComplete=true;this._metadataSize=this.metadata.length;this._wire.extendedHandshake.metadata_size=this._metadataSize;this.emit("metadata",i.encode({info:i.decode(this.metadata)}));return true};t.prototype._send=function(e,t){var n=i.encode(e);if(r.isBuffer(t)){n=r.concat([n,t])}this._wire.extended("ut_metadata",n)};t.prototype._request=function(e){this._send({msg_type:0,piece:e})};t.prototype._data=function(e,t,r){var i={msg_type:1,piece:e};if(typeof r==="number"){i.total_size=r}this._send(i,t)};t.prototype._reject=function(e){this._send({msg_type:2,piece:e})};t.prototype._onRequest=function(e){if(!this._metadataComplete){this._reject(e);return}var t=e*l;var r=t+l;if(r>this._metadataSize){r=this._metadataSize}var i=this.metadata.slice(t,r);this._data(e,i,this._metadataSize)};t.prototype._onData=function(e,t,r){if(t.length>l){return}t.copy(this.metadata,e*l);this._bitfield.set(e);this._checkDone()};t.prototype._onReject=function(e){if(this._remainingRejects>0&&this._fetching){this._request(e);this._remainingRejects-=1}else{this.emit("warning",new Error('Peer sent "reject" too much'))}};t.prototype._requestPieces=function(){this.metadata=new r(this._metadataSize);for(var e=0;e<this._numPieces;e++){this._request(e)}};t.prototype._checkDone=function(){var e=true;for(var t=0;t<this._numPieces;t++){if(!this._bitfield.get(t)){e=false;break}}if(!e)return;var r=this.setMetadata(this.metadata);if(!r){this._failedMetadata()}};t.prototype._failedMetadata=function(){this._bitfield=new n(0,{grow:u});this._remainingRejects-=this._numPieces;if(this._remainingRejects>0){this._requestPieces()}else{this.emit("warning",new Error("Peer sent invalid metadata"))}};return t}}).call(this,e("buffer").Buffer)},{bencode:170,bitfield:9,buffer:39,events:43,inherits:129,"simple-sha1":163}],170:[function(e,t,r){arguments[4][15][0].apply(r,arguments)},{"./lib/decode":171,"./lib/encode":173,dup:15}],171:[function(e,t,r){arguments[4][16][0].apply(r,arguments)},{"./dict":172,buffer:39,dup:16}],172:[function(e,t,r){arguments[4][17][0].apply(r,arguments)},{dup:17}],173:[function(e,t,r){arguments[4][18][0].apply(r,arguments)},{buffer:39,dup:18}],174:[function(e,t,r){var i=function(e,t,r){this._byteOffset=t||0;if(e instanceof ArrayBuffer){this.buffer=e}else if(typeof e=="object"){this.dataView=e;if(t){this._byteOffset+=t}}else{this.buffer=new ArrayBuffer(e||0)}this.position=0;this.endianness=r==null?i.LITTLE_ENDIAN:r};t.exports=i;i.prototype={};i.prototype.save=function(e){var t=new Blob([this.buffer]);var r=window.webkitURL||window.URL;if(r&&r.createObjectURL){var i=r.createObjecturl(/sitelet?url=https%3A%2F%2Fgithub.com%2Frublebit%2Fwebtorrent%2Fblob%2Fmaster%2Ft);var n=document.createElement("a");n.setAttribute("href",i);n.setAttribute("download",e);n.click();r.revokeObjecturl(/sitelet?url=https%3A%2F%2Fgithub.com%2Frublebit%2Fwebtorrent%2Fblob%2Fmaster%2Fi)}else{throw"DataStream.save: Can't create object URL."}};i.BIG_ENDIAN=false;i.LITTLE_ENDIAN=true;i.prototype._dynamicSize=true;Object.defineProperty(i.prototype,"dynamicSize",{get:function(){return this._dynamicSize},set:function(e){if(!e){this._trimAlloc()}this._dynamicSize=e}});i.prototype._byteLength=0;Object.defineProperty(i.prototype,"byteLength",{get:function(){return this._byteLength-this._byteOffset}});Object.defineProperty(i.prototype,"buffer",{get:function(){this._trimAlloc();return this._buffer},set:function(e){this._buffer=e;this._dataView=new DataView(this._buffer,this._byteOffset);this._byteLength=this._buffer.byteLength}});Object.defineProperty(i.prototype,"byteOffset",{get:function(){return this._byteOffset},set:function(e){this._byteOffset=e;this._dataView=new DataView(this._buffer,this._byteOffset);this._byteLength=this._buffer.byteLength}});Object.defineProperty(i.prototype,"dataView",{get:function(){return this._dataView},set:function(e){this._byteOffset=e.byteOffset;this._buffer=e.buffer;this._dataView=new DataView(this._buffer,this._byteOffset);this._byteLength=this._byteOffset+e.byteLength}});i.prototype._realloc=function(e){if(!this._dynamicSize){return}var t=this._byteOffset+this.position+e;var r=this._buffer.byteLength;if(t<=r){if(t>this._byteLength){this._byteLength=t}return}if(r<1){r=1}while(t>r){r*=2}var i=new ArrayBuffer(r);var n=new Uint8Array(this._buffer);var a=new Uint8Array(i,0,n.length);a.set(n);this.buffer=i;this._byteLength=t};i.prototype._trimAlloc=function(){if(this._byteLength==this._buffer.byteLength){return}var e=new ArrayBuffer(this._byteLength);var t=new Uint8Array(e);var r=new Uint8Array(this._buffer,0,t.length);t.set(r);this.buffer=e};i.prototype.shift=function(e){var t=new ArrayBuffer(this._byteLength-e);var r=new Uint8Array(t);var i=new Uint8Array(this._buffer,e,r.length);r.set(i);this.buffer=t;this.position-=e};i.prototype.seek=function(e){var t=Math.max(0,Math.min(this.byteLength,e));this.position=isNaN(t)||!isFinite(t)?0:t};i.prototype.isEof=function(){return this.position>=this._byteLength};i.prototype.mapInt32Array=function(e,t){this._realloc(e*4);var r=new Int32Array(this._buffer,this.byteOffset+this.position,e);i.arrayToNative(r,t==null?this.endianness:t);this.position+=e*4;return r};i.prototype.mapInt16Array=function(e,t){this._realloc(e*2);var r=new Int16Array(this._buffer,this.byteOffset+this.position,e);i.arrayToNative(r,t==null?this.endianness:t);this.position+=e*2;return r};i.prototype.mapInt8Array=function(e){this._realloc(e*1);var t=new Int8Array(this._buffer,this.byteOffset+this.position,e);this.position+=e*1;return t};i.prototype.mapUint32Array=function(e,t){this._realloc(e*4);var r=new Uint32Array(this._buffer,this.byteOffset+this.position,e);i.arrayToNative(r,t==null?this.endianness:t);this.position+=e*4;return r};i.prototype.mapUint16Array=function(e,t){this._realloc(e*2);var r=new Uint16Array(this._buffer,this.byteOffset+this.position,e);i.arrayToNative(r,t==null?this.endianness:t);this.position+=e*2;return r};i.prototype.mapUint8Array=function(e){this._realloc(e*1);var t=new Uint8Array(this._buffer,this.byteOffset+this.position,e);this.position+=e*1;return t};i.prototype.mapFloat64Array=function(e,t){this._realloc(e*8);var r=new Float64Array(this._buffer,this.byteOffset+this.position,e);i.arrayToNative(r,t==null?this.endianness:t);this.position+=e*8;return r};i.prototype.mapFloat32Array=function(e,t){this._realloc(e*4);var r=new Float32Array(this._buffer,this.byteOffset+this.position,e);i.arrayToNative(r,t==null?this.endianness:t);this.position+=e*4;return r};i.prototype.readInt32Array=function(e,t){e=e==null?this.byteLength-this.position/4:e;var r=new Int32Array(e);i.memcpy(r.buffer,0,this.buffer,this.byteOffset+this.position,e*r.BYTES_PER_ELEMENT);i.arrayToNative(r,t==null?this.endianness:t);this.position+=r.byteLength;return r};i.prototype.readInt16Array=function(e,t){e=e==null?this.byteLength-this.position/2:e;var r=new Int16Array(e);i.memcpy(r.buffer,0,this.buffer,this.byteOffset+this.position,e*r.BYTES_PER_ELEMENT);i.arrayToNative(r,t==null?this.endianness:t);this.position+=r.byteLength;return r};i.prototype.readInt8Array=function(e){e=e==null?this.byteLength-this.position:e;var t=new Int8Array(e);i.memcpy(t.buffer,0,this.buffer,this.byteOffset+this.position,e*t.BYTES_PER_ELEMENT);this.position+=t.byteLength;return t};i.prototype.readUint32Array=function(e,t){e=e==null?this.byteLength-this.position/4:e;var r=new Uint32Array(e);i.memcpy(r.buffer,0,this.buffer,this.byteOffset+this.position,e*r.BYTES_PER_ELEMENT);i.arrayToNative(r,t==null?this.endianness:t);this.position+=r.byteLength;return r};i.prototype.readUint16Array=function(e,t){e=e==null?this.byteLength-this.position/2:e;var r=new Uint16Array(e);i.memcpy(r.buffer,0,this.buffer,this.byteOffset+this.position,e*r.BYTES_PER_ELEMENT);i.arrayToNative(r,t==null?this.endianness:t);this.position+=r.byteLength;return r};i.prototype.readUint8Array=function(e){e=e==null?this.byteLength-this.position:e;var t=new Uint8Array(e);i.memcpy(t.buffer,0,this.buffer,this.byteOffset+this.position,e*t.BYTES_PER_ELEMENT);this.position+=t.byteLength;return t};i.prototype.readFloat64Array=function(e,t){e=e==null?this.byteLength-this.position/8:e;var r=new Float64Array(e);i.memcpy(r.buffer,0,this.buffer,this.byteOffset+this.position,e*r.BYTES_PER_ELEMENT);i.arrayToNative(r,t==null?this.endianness:t);this.position+=r.byteLength;return r};i.prototype.readFloat32Array=function(e,t){e=e==null?this.byteLength-this.position/4:e;var r=new Float32Array(e);i.memcpy(r.buffer,0,this.buffer,this.byteOffset+this.position,e*r.BYTES_PER_ELEMENT);i.arrayToNative(r,t==null?this.endianness:t);this.position+=r.byteLength;return r};i.prototype.writeInt32Array=function(e,t){this._realloc(e.length*4);if(e instanceof Int32Array&&this.byteOffset+this.position%e.BYTES_PER_ELEMENT===0){i.memcpy(this._buffer,this.byteOffset+this.position,e.buffer,0,e.byteLength);this.mapInt32Array(e.length,t)}else{for(var r=0;r<e.length;r++){this.writeInt32(e[r],t)}}};i.prototype.writeInt16Array=function(e,t){this._realloc(e.length*2);if(e instanceof Int16Array&&this.byteOffset+this.position%e.BYTES_PER_ELEMENT===0){i.memcpy(this._buffer,this.byteOffset+this.position,e.buffer,0,e.byteLength);this.mapInt16Array(e.length,t)}else{for(var r=0;r<e.length;r++){this.writeInt16(e[r],t)}}};i.prototype.writeInt8Array=function(e){this._realloc(e.length*1);if(e instanceof Int8Array&&this.byteOffset+this.position%e.BYTES_PER_ELEMENT===0){i.memcpy(this._buffer,this.byteOffset+this.position,e.buffer,0,e.byteLength);this.mapInt8Array(e.length)}else{for(var t=0;t<e.length;t++){this.writeInt8(e[t])}}};i.prototype.writeUint32Array=function(e,t){this._realloc(e.length*4);if(e instanceof Uint32Array&&this.byteOffset+this.position%e.BYTES_PER_ELEMENT===0){i.memcpy(this._buffer,this.byteOffset+this.position,e.buffer,0,e.byteLength);this.mapUint32Array(e.length,t)}else{for(var r=0;r<e.length;r++){this.writeUint32(e[r],t)}}};i.prototype.writeUint16Array=function(e,t){this._realloc(e.length*2);if(e instanceof Uint16Array&&this.byteOffset+this.position%e.BYTES_PER_ELEMENT===0){i.memcpy(this._buffer,this.byteOffset+this.position,e.buffer,0,e.byteLength);this.mapUint16Array(e.length,t)}else{for(var r=0;r<e.length;r++){this.writeUint16(e[r],t)}}};i.prototype.writeUint8Array=function(e){this._realloc(e.length*1);if(e instanceof Uint8Array&&this.byteOffset+this.position%e.BYTES_PER_ELEMENT===0){i.memcpy(this._buffer,this.byteOffset+this.position,e.buffer,0,e.byteLength);this.mapUint8Array(e.length)}else{for(var t=0;t<e.length;t++){this.writeUint8(e[t])}}};i.prototype.writeFloat64Array=function(e,t){this._realloc(e.length*8);if(e instanceof Float64Array&&this.byteOffset+this.position%e.BYTES_PER_ELEMENT===0){i.memcpy(this._buffer,this.byteOffset+this.position,e.buffer,0,e.byteLength);this.mapFloat64Array(e.length,t)}else{for(var r=0;r<e.length;r++){this.writeFloat64(e[r],t)}}};i.prototype.writeFloat32Array=function(e,t){this._realloc(e.length*4);if(e instanceof Float32Array&&this.byteOffset+this.position%e.BYTES_PER_ELEMENT===0){i.memcpy(this._buffer,this.byteOffset+this.position,e.buffer,0,e.byteLength);this.mapFloat32Array(e.length,t)}else{for(var r=0;r<e.length;r++){this.writeFloat32(e[r],t)}}};i.prototype.readInt32=function(e){var t=this._dataView.getInt32(this.position,e==null?this.endianness:e);this.position+=4;return t};i.prototype.readInt16=function(e){var t=this._dataView.getInt16(this.position,e==null?this.endianness:e);this.position+=2;return t};i.prototype.readInt8=function(){var e=this._dataView.getInt8(this.position);this.position+=1;return e};i.prototype.readUint32=function(e){var t=this._dataView.getUint32(this.position,e==null?this.endianness:e);this.position+=4;return t};i.prototype.readUint16=function(e){var t=this._dataView.getUint16(this.position,e==null?this.endianness:e);this.position+=2;return t};i.prototype.readUint8=function(){var e=this._dataView.getUint8(this.position);this.position+=1;return e};i.prototype.readFloat32=function(e){var t=this._dataView.getFloat32(this.position,e==null?this.endianness:e);this.position+=4;return t};i.prototype.readFloat64=function(e){var t=this._dataView.getFloat64(this.position,e==null?this.endianness:e);this.position+=8;return t};i.prototype.writeInt32=function(e,t){this._realloc(4);this._dataView.setInt32(this.position,e,t==null?this.endianness:t);this.position+=4};i.prototype.writeInt16=function(e,t){this._realloc(2);this._dataView.setInt16(this.position,e,t==null?this.endianness:t);this.position+=2};i.prototype.writeInt8=function(e){this._realloc(1);this._dataView.setInt8(this.position,e);this.position+=1};i.prototype.writeUint32=function(e,t){this._realloc(4);this._dataView.setUint32(this.position,e,t==null?this.endianness:t);this.position+=4};i.prototype.writeUint16=function(e,t){this._realloc(2);this._dataView.setUint16(this.position,e,t==null?this.endianness:t);this.position+=2};i.prototype.writeUint8=function(e){this._realloc(1);this._dataView.setUint8(this.position,e);this.position+=1};i.prototype.writeFloat32=function(e,t){this._realloc(4);this._dataView.setFloat32(this.position,e,t==null?this.endianness:t);this.position+=4};i.prototype.writeFloat64=function(e,t){this._realloc(8);this._dataView.setFloat64(this.position,e,t==null?this.endianness:t);this.position+=8};i.endianness=new Int8Array(new Int16Array([1]).buffer)[0]>0;i.memcpy=function(e,t,r,i,n){var a=new Uint8Array(e,t,n);var s=new Uint8Array(r,i,n);a.set(s)};i.arrayToNative=function(e,t){if(t==this.endianness){return e}else{return this.flipArrayEndianness(e)}};i.nativeToEndian=function(e,t){if(this.endianness==t){return e}else{return this.flipArrayEndianness(e)}};i.flipArrayEndianness=function(e){var t=new Uint8Array(e.buffer,e.byteOffset,e.byteLength);for(var r=0;r<e.byteLength;r+=e.BYTES_PER_ELEMENT){for(var i=r+e.BYTES_PER_ELEMENT-1,n=r;i>n;i--,n++){var a=t[n];t[n]=t[i];t[i]=a}}return e};i.prototype.failurePosition=0;i.prototype.readStruct=function(e){var t={},r,i,n;var a=this.position;for(var s=0;s<e.length;s+=2){r=e[s+1];i=this.readType(r,t);if(i==null){if(this.failurePosition===0){this.failurePosition=this.position}this.position=a;return null}t[e[s]]=i}return t};i.prototype.readUCS2String=function(e,t){return String.fromCharCode.apply(null,this.readUint16Array(e,t))};i.prototype.writeUCS2String=function(e,t,r){if(r==null){r=e.length}for(var i=0;i<e.length&&i<r;i++){this.writeUint16(e.charCodeAt(i),t)}for(;i<r;i++){this.writeUint16(0)}};i.prototype.readString=function(e,t){if(t==null||t=="ASCII"){return String.fromCharCode.apply(null,this.mapUint8Array(e==null?this.byteLength-this.position:e))}else{return new TextDecoder(t).decode(this.mapUint8Array(e))}};i.prototype.writeString=function(e,t,r){var i=0;if(t==null||t=="ASCII"){if(r!=null){var n=Math.min(e.length,r);for(i=0;i<n;i++){this.writeUint8(e.charCodeAt(i))}for(;i<r;i++){this.writeUint8(0)}}else{for(i=0;i<e.length;i++){this.writeUint8(e.charCodeAt(i))}}}else{this.writeUint8Array(new TextEncoder(t).encode(e.substring(0,r)))}};i.prototype.readCString=function(e){var t=this.byteLength-this.position;var r=new Uint8Array(this._buffer,this._byteOffset+this.position);var i=t;if(e!=null){i=Math.min(e,t)}for(var n=0;n<i&&r[n]!==0;n++);var a=String.fromCharCode.apply(null,this.mapUint8Array(n));if(e!=null){this.position+=i-n}else if(n!=t){this.position+=1}return a};i.prototype.writeCString=function(e,t){var r=0;if(t!=null){var i=Math.min(e.length,t);for(r=0;r<i;r++){this.writeUint8(e.charCodeAt(r))}for(;r<t;r++){this.writeUint8(0)}}else{for(r=0;r<e.length;r++){this.writeUint8(e.charCodeAt(r))}this.writeUint8(0)}};i.prototype.readType=function(e,t){if(typeof e=="function"){return e(this,t)}else if(typeof e=="object"&&!(e instanceof Array)){return e.get(this,t)}else if(e instanceof Array&&e.length!=3){return this.readStruct(e,t)}var r=null;var n=null;var a="ASCII";var s=this.position;var o;var f;var u;if(typeof e=="string"&&/:/.test(e)){o=e.split(":");e=o[0];n=parseInt(o[1])}if(typeof e=="string"&&/,/.test(e)){o=e.split(",");e=o[0];a=parseInt(o[1])}switch(e){case"uint8":r=this.readUint8();break;case"int8":r=this.readInt8();break;case"uint16":r=this.readUint16(this.endianness);break;case"int16":r=this.readInt16(this.endianness);break;case"uint32":r=this.readUint32(this.endianness);break;case"int32":r=this.readInt32(this.endianness);break;case"float32":r=this.readFloat32(this.endianness);break;case"float64":r=this.readFloat64(this.endianness);break;case"uint16be":r=this.readUint16(i.BIG_ENDIAN);break;case"int16be":r=this.readInt16(i.BIG_ENDIAN);break;case"uint32be":r=this.readUint32(i.BIG_ENDIAN);break;case"int32be":r=this.readInt32(i.BIG_ENDIAN);break;case"float32be":r=this.readFloat32(i.BIG_ENDIAN);break;case"float64be":r=this.readFloat64(i.BIG_ENDIAN);break;case"uint16le":r=this.readUint16(i.LITTLE_ENDIAN);break;case"int16le":r=this.readInt16(i.LITTLE_ENDIAN);break;case"uint32le":r=this.readUint32(i.LITTLE_ENDIAN);break;case"int32le":r=this.readInt32(i.LITTLE_ENDIAN);break;case"float32le":r=this.readFloat32(i.LITTLE_ENDIAN);break;case"float64le":r=this.readFloat64(i.LITTLE_ENDIAN);break;case"cstring":r=this.readCString(n);break;case"string":r=this.readString(n,a);break;case"u16string":r=this.readUCS2String(n,this.endianness);break;case"u16stringle":r=this.readUCS2String(n,i.LITTLE_ENDIAN);break;case"u16stringbe":r=this.readUCS2String(n,i.BIG_ENDIAN);break;default:if(e.length==3){var l=e[1];var c=e[2];var p=0;if(typeof c=="function"){p=c(t,this,e)}else if(typeof c=="string"&&t[c]!=null){p=parseInt(t[c])}else{p=parseInt(c)}if(typeof l=="string"){var d=l.replace(/(le|be)$/,"");var h=null;if(/le$/.test(l)){h=i.LITTLE_ENDIAN}else if(/be$/.test(l)){h=i.BIG_ENDIAN}if(c=="*"){p=null}switch(d){case"uint8":r=this.readUint8Array(p);break;case"uint16":r=this.readUint16Array(p,h);break;case"uint32":r=this.readUint32Array(p,h);break;case"int8":r=this.readInt8Array(p);break;case"int16":r=this.readInt16Array(p,h);break;case"int32":r=this.readInt32Array(p,h);break;case"float32":r=this.readFloat32Array(p,h);break;case"float64":r=this.readFloat64Array(p,h);break;case"cstring":case"utf16string":case"string":if(p==null){r=[];while(!this.isEof()){u=this.readType(l,t);if(u==null)break;r.push(u)}}else{r=new Array(p);for(f=0;f<p;f++){r[f]=this.readType(l,t)}}break}}else{if(c=="*"){r=[];var m=this.buffer;while(true){var v=this.position;try{var g=this.readType(l,t);if(g==null){this.position=v;break}r.push(g)}catch(y){this.position=v;break}}}else{r=new Array(p);for(f=0;f<p;f++){u=this.readType(l,t);if(u==null)return null;r[f]=u}}}break}}if(n!=null){this.position=s+n}return r};i.prototype.writeStruct=function(e,t){for(var r=0;r<e.length;r+=2){var i=e[r+1];this.writeType(i,t[e[r]],t)}};i.prototype.writeType=function(e,t,r){var n;if(typeof e=="function"){return e(this,t)}else if(typeof e=="object"&&!(e instanceof Array)){return e.set(this,t,r)}var a=null;var s="ASCII";var o=this.position;if(typeof e=="string"&&/:/.test(e)){n=e.split(":");e=n[0];a=parseInt(n[1])}if(typeof e=="string"&&/,/.test(e)){n=e.split(",");e=n[0];s=parseInt(n[1])}switch(e){case"uint8":this.writeUint8(t);break;case"int8":this.writeInt8(t);break;case"uint16":this.writeUint16(t,this.endianness);break;case"int16":this.writeInt16(t,this.endianness);break;case"uint32":this.writeUint32(t,this.endianness);break;case"int32":this.writeInt32(t,this.endianness);break;case"float32":this.writeFloat32(t,this.endianness);break;case"float64":this.writeFloat64(t,this.endianness);break;case"uint16be":this.writeUint16(t,i.BIG_ENDIAN);break;case"int16be":this.writeInt16(t,i.BIG_ENDIAN);break;case"uint32be":this.writeUint32(t,i.BIG_ENDIAN);break;case"int32be":this.writeInt32(t,i.BIG_ENDIAN);break;case"float32be":this.writeFloat32(t,i.BIG_ENDIAN);break;case"float64be":this.writeFloat64(t,i.BIG_ENDIAN);break;case"uint16le":this.writeUint16(t,i.LITTLE_ENDIAN);break;case"int16le":this.writeInt16(t,i.LITTLE_ENDIAN);break;case"uint32le":this.writeUint32(t,i.LITTLE_ENDIAN);break;case"int32le":this.writeInt32(t,i.LITTLE_ENDIAN);break;case"float32le":this.writeFloat32(t,i.LITTLE_ENDIAN);break;case"float64le":this.writeFloat64(t,i.LITTLE_ENDIAN);break;case"cstring":this.writeCString(t,a);break;case"string":this.writeString(t,s,a);break;case"u16string":this.writeUCS2String(t,this.endianness,a);break;case"u16stringle":this.writeUCS2String(t,i.LITTLE_ENDIAN,a);break;case"u16stringbe":this.writeUCS2String(t,i.BIG_ENDIAN,a);break;default:if(e.length==3){var f=e[1];for(var u=0;u<t.length;u++){this.writeType(f,t[u])}break}else{this.writeStruct(e,t);break}}if(a!=null){this.position=o;this._realloc(a);this.position=o+a}};var n=Math.pow(2,32);r.MAX_SIZE=n;i.prototype.readUint64=function(){return this.readUint32()*n+this.readUint32()};i.prototype.writeUint64=function(e){var t=Math.floor(e/n);this.writeUint32(t);this.writeUint32(e&4294967295)};i.prototype.readUint24=function(){return(this.readUint8()<<16)+(this.readUint8()<<8)+this.readUint8()};i.prototype.writeUint24=function(e){this.writeUint8((e&16711680)>>16);this.writeUint8((e&65280)>>8);this.writeUint8(e&255)};i.prototype.adjustUint32=function(e,t){var r=this.position;this.seek(e);this.writeUint32(t);this.seek(r)}},{}],175:[function(e,t,r){var n=e("./DataStream");var a=e("./descriptor");var s=e("./log");var o={ERR_NOT_ENOUGH_DATA:0,OK:1,boxCodes:["mdat","avcC","hvcC","ftyp","payl","vmhd","smhd","hmhd","dref","elst"],fullBoxCodes:["mvhd","tkhd","mdhd","hdlr","smhd","hmhd","nhmd","url ","urn ","ctts","cslg","stco","co64","stsc","stss","stsz","stz2","stts","stsh","mehd","trex","mfhd","tfhd","trun","tfdt","esds","subs","txtC"],containerBoxCodes:[["moov",["trak"]],["trak"],["edts"],["mdia"],["minf"],["dinf"],["stbl"],["mvex",["trex"]],["moof",["traf"]],["traf",["trun"]],["vttc"],["tref"]],sampleEntryCodes:[{prefix:"Visual",types:["mp4v","avc1","avc2","avc3","avc4","avcp","drac","encv","mjp2","mvc1","mvc2","resv","s263","svc1","vc-1","hvc1","hev1"]},{prefix:"Audio",types:["mp4a","ac-3","alac","dra1","dtsc","dtse",,"dtsh","dtsl","ec-3","enca","g719","g726","m4ae","mlpa","raw ","samr","sawb","sawp","sevc","sqcp","ssmv","twos"]},{prefix:"Hint",types:["fdp ","m2ts","pm2t","prtp","rm2t","rrtp","rsrp","rtp ","sm2t","srtp"]},{prefix:"Metadata",types:["metx","mett","urim"]},{prefix:"Subtitle",types:["stpp","wvtt","sbtt","tx3g","stxt"]}],trackReferenceTypes:["scal"],initialize:function(){var e,t;var r;o.FullBox.prototype=new o.Box;o.ContainerBox.prototype=new o.Box;o.stsdBox.prototype=new o.FullBox;o.SampleEntry.prototype=new o.FullBox;o.TrackReferenceTypeBox.prototype=new o.Box;r=o.boxCodes.length;for(e=0;e<r;e++){o[o.boxCodes[e]+"Box"]=function(e){return function(t){o.Box.call(this,o.boxCodes[e],t)}}(e);o[o.boxCodes[e]+"Box"].prototype=new o.Box}r=o.fullBoxCodes.length;for(e=0;e<r;e++){o[o.fullBoxCodes[e]+"Box"]=function(e){return function(t){o.FullBox.call(this,o.fullBoxCodes[e],t)}}(e);o[o.fullBoxCodes[e]+"Box"].prototype=new o.FullBox}r=o.containerBoxCodes.length;for(e=0;e<r;e++){o[o.containerBoxCodes[e][0]+"Box"]=function(e,t){return function(r){o.ContainerBox.call(this,o.containerBoxCodes[e][0],r);if(t){this.subBoxNames=t;var i=t.length;for(var n=0;n<i;n++){this[t[n]+"s"]=[]}}}}(e,o.containerBoxCodes[e][1]);o[o.containerBoxCodes[e][0]+"Box"].prototype=new o.ContainerBox}r=o.sampleEntryCodes.length;for(t=0;t<r;t++){var i=o.sampleEntryCodes[t].prefix;var n=o.sampleEntryCodes[t].types;var a=n.length;o[i+"SampleEntry"]=function(e,t){o.SampleEntry.call(this,e,t)};o[i+"SampleEntry"].prototype=new o.SampleEntry;for(e=0;e<a;e++){o[n[e]+"Box"]=function(e,t){return function(r){o[o.sampleEntryCodes[e].prefix+"SampleEntry"].call(this,o.sampleEntryCodes[e].types[t],r)}}(t,e);o[n[e]+"Box"].prototype=new o[i+"SampleEntry"]}}r=o.trackReferenceTypes.length;for(e=0;e<r;e++){o[o.trackReferenceTypes[e]+"Box"]=function(e){return function(t){o.TrackReferenceTypeBox.call(this,o.trackReferenceTypes[e],t)}}(e);o[o.trackReferenceTypes[e]+"Box"].prototype=new o.Box}},Box:function(e,t){this.type=e;this.size=t},FullBox:function(e,t){o.Box.call(this,e,t);this.flags=0;this.version=0},ContainerBox:function(e,t){o.Box.call(this,e,t);this.boxes=[]},SampleEntry:function(e,t){o.Box.call(this,e,t);this.boxes=[]},TrackReferenceTypeBox:function(e,t){o.Box.call(this,e,t);this.track_ids=[]},stsdBox:function(e){o.FullBox.call(this,"stsd",e);this.entries=[]},parseOneBox:function(e,t){var r;var i=e.position;var n=0;if(e.byteLength-e.position<8){s.d("BoxParser","Not enough data in stream to parse the type and size of the box");return{code:o.ERR_NOT_ENOUGH_DATA}}var a=e.readUint32();var f=e.readString(4);s.d("BoxParser","Found box of type "+f+" and size "+a+" at position "+i+" in the current buffer ("+(e.buffer.fileStart+i)+" in the file)");n=8;if(a==1){if(e.byteLength-e.position<8){e.seek(i);s.w("BoxParser",'Not enough data in stream to parse the extended size of the "'+f+'" box');return{code:o.ERR_NOT_ENOUGH_DATA}}a=e.readUint64();n+=8}else if(a===0){throw"Unlimited box size not supported"}if(i+a>e.byteLength){e.seek(i);s.w("BoxParser",'Not enough data in stream to parse the entire "'+f+'" box');return{code:o.ERR_NOT_ENOUGH_DATA,type:f,size:a,hdr_size:n}}if(o[f+"Box"]){r=new o[f+"Box"](a-n)}else{if(t){r=new o.SampleEntry(f,a-n)}else{r=new o.Box(f,a-n)}}r.hdr_size=n;r.start=i;r.fileStart=i+e.buffer.fileStart;r.parse(e);e.seek(i+a);return{code:o.OK,box:r,size:a}}};t.exports=o;o.initialize();o.Box.prototype.parse=function(e){

if(this.type!="mdat"){this.data=e.readUint8Array(this.size)}else{e.seek(this.start+this.size+this.hdr_size)}};o.FullBox.prototype.parseFullHeader=function(e){this.version=e.readUint8();this.flags=e.readUint24();this.size-=4};o.ContainerBox.prototype.parse=function(e){var t;var r;var i;i=e.position;while(e.position<i+this.size){t=o.parseOneBox(e);r=t.box;this.boxes.push(r);if(this.subBoxNames&&this.subBoxNames.indexOf(r.type)!=-1){this[this.subBoxNames+"s"].push(r)}else{this[r.type]=r}}};o.SampleEntry.prototype.isVideo=function(){return false};o.SampleEntry.prototype.isAudio=function(){return false};o.SampleEntry.prototype.isSubtitle=function(){return false};o.SampleEntry.prototype.isMetadata=function(){return false};o.SampleEntry.prototype.isHint=function(){return false};o.SampleEntry.prototype.getCodec=function(){return this.type};o.SampleEntry.prototype.getWidth=function(){return""};o.SampleEntry.prototype.getHeight=function(){return""};o.SampleEntry.prototype.getChannelCount=function(){return""};o.SampleEntry.prototype.getSampleRate=function(){return""};o.SampleEntry.prototype.getSampleSize=function(){return""};o.SampleEntry.prototype.parseHeader=function(e){this.start=e.position;e.readUint8Array(6);this.data_reference_index=e.readUint16()};o.SampleEntry.prototype.parse=function(e){this.parseHeader(e);e.seek(this.start+this.size)};o.SampleEntry.prototype.parseFooter=function(e){var t;var r;while(e.position<this.start+this.size){t=o.parseOneBox(e,false);r=t.box;this.boxes.push(r);this[r.type]=r}};o.VisualSampleEntry.prototype.parse=function(e){this.parseHeader(e);e.readUint16();e.readUint16();e.readUint32Array(3);this.width=e.readUint16();this.height=e.readUint16();this.horizresolution=e.readUint32();this.vertresolution=e.readUint32();e.readUint32();this.frame_count=e.readUint16();this.compressorname=e.readString(32);this.depth=e.readUint16();e.readUint16();this.parseFooter(e)};o.VisualSampleEntry.prototype.isVideo=function(){return true};o.VisualSampleEntry.prototype.getWidth=function(){return this.width};o.VisualSampleEntry.prototype.getHeight=function(){return this.height};o.AudioSampleEntry.prototype.parse=function(e){this.parseHeader(e);e.readUint32Array(2);this.channel_count=e.readUint16();this.samplesize=e.readUint16();e.readUint16();e.readUint16();this.samplerate=e.readUint32()/(1<<16);this.parseFooter(e)};o.AudioSampleEntry.prototype.isAudio=function(){return true};o.AudioSampleEntry.prototype.getChannelCount=function(){return this.channel_count};o.AudioSampleEntry.prototype.getSampleRate=function(){return this.samplerate};o.AudioSampleEntry.prototype.getSampleSize=function(){return this.samplesize};o.SubtitleSampleEntry.prototype.parse=function(e){this.parseHeader(e);this.parseFooter(e)};o.SubtitleSampleEntry.prototype.isSubtitle=function(){return true};o.MetadataSampleEntry.prototype.parse=function(e){this.parseHeader(e);this.parseFooter(e)};o.MetadataSampleEntry.prototype.isMetadata=function(){return true};o.TrackReferenceTypeBox.prototype.parse=function(e){this.track_ids=e.readUint8Array(this.size)};o.metxBox.prototype.parse=function(e){this.parseHeader(e);this.content_encoding=e.readCString();this.namespace=e.readCString();this.schema_location=e.readCString();this.parseFooter(e)};o.mettBox.prototype.parse=function(e){this.parseHeader(e);this.content_encoding=e.readCString();this.mime_format=e.readCString();this.parseFooter(e)};o.sbttBox.prototype.parse=function(e){this.parseHeader(e);this.content_encoding=e.readCString();this.mime_format=e.readCString();this.parseFooter(e)};o.stxtBox.prototype.parse=function(e){this.parseHeader(e);this.content_encoding=e.readCString();this.mime_format=e.readCString();this.parseFooter(e)};o.stppBox.prototype.parse=function(e){this.parseHeader(e);this.namespace=e.readCString();this.schema_location=e.readCString();this.auxiliary_mime_types=e.readCString();this.parseFooter(e)};o.tx3gBox.prototype.parse=function(e){this.parseHeader(e);this.displayFlags=e.readUint32();this.horizontal_justification=e.readInt8();this.vertical_justification=e.readInt8();this.bg_color_rgba=e.readUint8Array(4);this.box_record=e.readInt16Array(4);this.style_record=e.readUint8Array(12);this.parseFooter(e)};o.ftypBox.prototype.parse=function(e){this.major_brand=e.readString(4);this.minor_version=e.readUint32();this.size-=8;this.compatible_brands=[];var t=0;while(this.size>=4){this.compatible_brands[t]=e.readString(4);this.size-=4;t++}};o.mvhdBox.prototype.parse=function(e){this.flags=0;this.parseFullHeader(e);if(this.version==1){this.creation_time=e.readUint64();this.modification_time=e.readUint64();this.timescale=e.readUint32();this.duration=e.readUint64()}else{this.creation_time=e.readUint32();this.modification_time=e.readUint32();this.timescale=e.readUint32();this.duration=e.readUint32()}this.rate=e.readUint32();this.volume=e.readUint16()>>8;e.readUint16();e.readUint32Array(2);this.matrix=e.readUint32Array(9);e.readUint32Array(6);this.next_track_id=e.readUint32()};o.TKHD_FLAG_ENABLED=1;o.TKHD_FLAG_IN_MOVIE=2;o.TKHD_FLAG_IN_PREVIEW=4;o.tkhdBox.prototype.parse=function(e){this.parseFullHeader(e);if(this.version==1){this.creation_time=e.readUint64();this.modification_time=e.readUint64();this.track_id=e.readUint32();e.readUint32();this.duration=e.readUint64()}else{this.creation_time=e.readUint32();this.modification_time=e.readUint32();this.track_id=e.readUint32();e.readUint32();this.duration=e.readUint32()}e.readUint32Array(2);this.layer=e.readInt16();this.alternate_group=e.readInt16();this.volume=e.readInt16()>>8;e.readUint16();this.matrix=e.readInt32Array(9);this.width=e.readUint32();this.height=e.readUint32()};o.mdhdBox.prototype.parse=function(e){this.parseFullHeader(e);if(this.version==1){this.creation_time=e.readUint64();this.modification_time=e.readUint64();this.timescale=e.readUint32();this.duration=e.readUint64()}else{this.creation_time=e.readUint32();this.modification_time=e.readUint32();this.timescale=e.readUint32();this.duration=e.readUint32()}this.language=e.readUint16();var t=[];t[0]=this.language>>10&31;t[1]=this.language>>5&31;t[2]=this.language&31;this.languageString=String.fromCharCode(t[0]+96,t[1]+96,t[2]+96);e.readUint16()};o.hdlrBox.prototype.parse=function(e){this.parseFullHeader(e);if(this.version===0){e.readUint32();this.handler=e.readString(4);e.readUint32Array(3);this.name=e.readCString()}else{this.data=e.readUint8Array(size)}};o.stsdBox.prototype.parse=function(e){var t;var r;this.parseFullHeader(e);r=e.readUint32();for(i=1;i<=r;i++){t=o.parseOneBox(e,true);this.entries.push(t.box)}};o.avcCBox.prototype.parse=function(e){var t;var r;var i;this.configurationVersion=e.readUint8();this.AVCProfileIndication=e.readUint8();this.profile_compatibility=e.readUint8();this.AVCLevelIndication=e.readUint8();this.lengthSizeMinusOne=e.readUint8()&3;r=e.readUint8()&31;this.size-=6;this.SPS=new Array(r);for(t=0;t<r;t++){i=e.readUint16();this.SPS[t]=e.readUint8Array(i);this.size-=2+i}r=e.readUint8();this.size--;this.PPS=new Array(r);for(t=0;t<r;t++){i=e.readUint16();this.PPS[t]=e.readUint8Array(i);this.size-=2+i}if(this.size>0){this.ext=e.readUint8Array(this.size)}};o.hvcCBox.prototype.parse=function(e){var t;var r;var i;var n;this.configurationVersion=e.readUint8();n=e.readUint8();this.general_profile_space=n>>6;this.general_tier_flag=(n&32)>>5;this.general_profile_idc=n&31;this.general_profile_compatibility=e.readUint32();this.general_constraint_indicator=e.readUint8Array(6);this.general_level_idc=e.readUint8();this.min_spatial_segmentation_idc=e.readUint16()&4095;this.parallelismType=e.readUint8()&3;this.chromaFormat=e.readUint8()&3;this.bitDepthLumaMinus8=e.readUint8()&7;this.bitDepthChromaMinus8=e.readUint8()&7;this.avgFrameRate=e.readUint16();n=e.readUint8();this.constantFrameRate=n>>6;this.numTemporalLayers=(n&13)>>3;this.temporalIdNested=(n&4)>>2;this.lengthSizeMinusOne=n&3;this.nalu_arrays=[];numOfArrays=e.readUint8();for(t=0;t<numOfArrays;t++){var a=[];this.nalu_arrays.push(a);n=e.readUint8();a.completeness=(n&128)>>7;a.nalu_type=n&63;numNalus=e.readUint16();for(j=0;j<numNalus;j++){var s={};a.push(s);i=e.readUint16();s.data=e.readUint8Array(i)}}};function f(e,t){var r=Number(e).toString(16);t=typeof t==="undefined"||t===null?t=2:t;while(r.length<t){r="0"+r}return r}o.avc1Box.prototype.getCodec=function(){var e=o.SampleEntry.prototype.getCodec.call(this);if(this.avcC){return e+"."+f(this.avcC.AVCProfileIndication)+""+f(this.avcC.profile_compatibility)+""+f(this.avcC.AVCLevelIndication)}else{return e}};o.hvc1Box.prototype.getCodec=function(){var e;var t=o.SampleEntry.prototype.getCodec.call(this);if(this.hvcC){t+=".";switch(this.hvcC.general_profile_space){case 0:t+="";break;case 1:t+="A";break;case 2:t+="B";break;case 3:t+="C";break}t+=this.hvcC.general_profile_idc;t+=".";var r=this.hvcC.general_profile_compatibility;var i=0;for(e=0;e<32;e++){i|=r&1;if(e==31)break;i<<=1;r>>=1}t+=f(i,0);t+=".";if(this.hvcC.general_tier_flag===0){t+="L"}else{t+="H"}t+=this.hvcC.general_level_idc;var n=false;var a="";for(e=5;e>=0;e--){if(this.hvcC.general_constraint_indicator[e]||n){a="."+f(this.hvcC.general_constraint_indicator[e],0)+a;n=true}}t+=a}return t};o.mp4aBox.prototype.getCodec=function(){var e=o.SampleEntry.prototype.getCodec.call(this);if(this.esds&&this.esds.esd){var t=this.esds.esd.getOTI();var r=this.esds.esd.getAudioConfig();return e+"."+f(t)+(r?"."+r:"")}else{return e}};o.esdsBox.prototype.parse=function(e){this.parseFullHeader(e);this.data=e.readUint8Array(this.size);this.size=0;var t=new a;this.esd=t.parseOneDescriptor(new n(this.data.buffer,0,n.BIG_ENDIAN))};o.txtCBox.prototype.parse=function(e){this.parseFullHeader(e);this.config=e.readCString()};o.cttsBox.prototype.parse=function(e){var t;var r;this.parseFullHeader(e);t=e.readUint32();this.sample_counts=[];this.sample_offsets=[];if(this.version===0){for(r=0;r<t;r++){this.sample_counts.push(e.readUint32());this.sample_offsets.push(e.readInt32())}}else if(this.version==1){for(r=0;r<t;r++){this.sample_counts.push(e.readUint32());this.sample_offsets.push(e.readInt32())}}else{this.data=e.readUint8Array(this.size-4)}};o.cttsBox.prototype.unpack=function(e){var t,r,i;i=0;for(t=0;t<this.sample_counts.length;t++){for(r=0;r<this.sample_counts[t];r++){e[i].pts=e[i].dts+this.sample_offsets[t];i++}}};o.cslgBox.prototype.parse=function(e){var t;this.parseFullHeader(e);if(this.version===0){this.compositionToDTSShift=e.readInt32();this.leastDecodeToDisplayDelta=e.readInt32();this.greatestDecodeToDisplayDelta=e.readInt32();this.compositionStartTime=e.readInt32();this.compositionEndTime=e.readInt32()}else{this.data=e.readUint8Array(this.size-4)}};o.sttsBox.prototype.parse=function(e){var t;var r;this.parseFullHeader(e);t=e.readUint32();this.sample_counts=[];this.sample_deltas=[];if(this.version===0){for(r=0;r<t;r++){this.sample_counts.push(e.readUint32());this.sample_deltas.push(e.readUint32())}}else{this.data=e.readUint8Array(this.size-4)}};o.sttsBox.prototype.unpack=function(e){var t,r,i;i=0;for(t=0;t<this.sample_counts.length;t++){for(r=0;r<this.sample_counts[t];r++){if(i===0){e[i].dts=0}else{e[i].dts=e[i-1].dts+this.sample_deltas[t]}i++}}};o.stssBox.prototype.parse=function(e){var t;this.parseFullHeader(e);t=e.readUint32();if(this.version===0){this.sample_numbers=e.readUint32Array(t)}else{this.data=e.readUint8Array(this.size-4)}};o.stshBox.prototype.parse=function(e){var t;var r;this.parseFullHeader(e);t=e.readUint32();this.shadowed_sample_numbers=[];this.sync_sample_numbers=[];if(this.version===0){for(r=0;r<t;r++){this.shadowed_sample_numbers.push(e.readUint32());this.sync_sample_numbers.push(e.readUint32())}}else{this.data=e.readUint8Array(this.size-4)}};o.stcoBox.prototype.parse=function(e){var t;this.parseFullHeader(e);t=e.readUint32();if(this.version===0){this.chunk_offsets=e.readUint32Array(t)}else{this.data=e.readUint8Array(this.size-4)}};o.stcoBox.prototype.unpack=function(e){var t;for(t=0;t<this.chunk_offsets.length;t++){e[t].offset=this.chunk_offsets[t]}};o.co64Box.prototype.parse=function(e){var t;var r;this.parseFullHeader(e);t=e.readUint32();this.chunk_offsets=[];if(this.version===0){for(r=0;r<t;r++){this.chunk_offsets.push(e.readUint64())}}else{this.data=e.readUint8Array(this.size-4)}};o.stscBox.prototype.parse=function(e){var t;var r;this.parseFullHeader(e);t=e.readUint32();this.first_chunk=[];this.samples_per_chunk=[];this.sample_description_index=[];if(this.version===0){for(r=0;r<t;r++){this.first_chunk.push(e.readUint32());this.samples_per_chunk.push(e.readUint32());this.sample_description_index.push(e.readUint32())}}else{this.data=e.readUint8Array(this.size-4)}};o.stscBox.prototype.unpack=function(e){var t,r,i,n,a;n=0;a=0;for(t=0;t<this.first_chunk.length;t++){for(r=0;r<(t+1<this.first_chunk.length?this.first_chunk[t+1]:Infinity);r++){a++;for(i=0;i<this.samples_per_chunk[t];i++){if(e[n]){e[n].description_index=this.sample_description_index[t];e[n].chunk_index=a}else{return}n++}}}};o.stszBox.prototype.parse=function(e){var t;var r;var i;this.parseFullHeader(e);this.sample_sizes=[];if(this.version===0){r=e.readUint32();i=e.readUint32();if(r===0){this.sample_sizes=e.readUint32Array(i)}else{this.sample_sizes=[];for(t=0;t<i;t++){this.sample_sizes[t]=r}}}else{this.data=e.readUint8Array(this.size)}};o.stszBox.prototype.unpack=function(e){var t;for(t=0;t<this.sample_sizes.length;t++){e[t].size=this.sample_sizes[t]}};o.mehdBox.prototype.parse=function(e){this.parseFullHeader(e);if(this.version==1){this.fragment_duration=e.readUint64()}else{this.fragment_duration=e.readUint32()}};o.trexBox.prototype.parse=function(e){this.parseFullHeader(e);this.track_id=e.readUint32();this.default_sample_description_index=e.readUint32();this.default_sample_duration=e.readUint32();this.default_sample_size=e.readUint32();this.default_sample_flags=e.readUint32()};o.mfhdBox.prototype.parse=function(e){this.parseFullHeader(e);this.sequence_number=e.readUint32()};o.TFHD_FLAG_BASE_DATA_OFFSET=1;o.TFHD_FLAG_SAMPLE_DESC=2;o.TFHD_FLAG_SAMPLE_DUR=8;o.TFHD_FLAG_SAMPLE_SIZE=16;o.TFHD_FLAG_SAMPLE_FLAGS=32;o.TFHD_FLAG_DUR_EMPTY=65536;o.TFHD_FLAG_DEFAULT_BASE_IS_MOOF=131072;o.tfhdBox.prototype.parse=function(e){var t=0;this.parseFullHeader(e);this.track_id=e.readUint32();if(this.size>t&&this.flags&o.TFHD_FLAG_BASE_DATA_OFFSET){this.base_data_offset=e.readUint64();t+=8}else{this.base_data_offset=0}if(this.size>t&&this.flags&o.TFHD_FLAG_SAMPLE_DESC){this.default_sample_description_index=e.readUint32();t+=4}else{this.default_sample_description_index=0}if(this.size>t&&this.flags&o.TFHD_FLAG_SAMPLE_DUR){this.default_sample_duration=e.readUint32();t+=4}else{this.default_sample_duration=0}if(this.size>t&&this.flags&o.TFHD_FLAG_SAMPLE_SIZE){this.default_sample_size=e.readUint32();t+=4}else{this.default_sample_size=0}if(this.size>t&&this.flags&o.TFHD_FLAG_SAMPLE_FLAGS){this.default_sample_flags=e.readUint32();t+=4}else{this.default_sample_flags=0}};o.TRUN_FLAGS_DATA_OFFSET=1;o.TRUN_FLAGS_FIRST_FLAG=4;o.TRUN_FLAGS_DURATION=256;o.TRUN_FLAGS_SIZE=512;o.TRUN_FLAGS_FLAGS=1024;o.TRUN_FLAGS_CTS_OFFSET=2048;o.trunBox.prototype.parse=function(e){var t=0;this.parseFullHeader(e);this.sample_count=e.readUint32();t+=4;if(this.size>t&&this.flags&o.TRUN_FLAGS_DATA_OFFSET){this.data_offset=e.readInt32();t+=4}else{this.data_offset=0}if(this.size>t&&this.flags&o.TRUN_FLAGS_FIRST_FLAG){this.first_sample_flags=e.readUint32();t+=4}else{this.first_sample_flags=0}this.sample_duration=[];this.sample_size=[];this.sample_flags=[];this.sample_composition_time_offset=[];if(this.size>t){for(var r=0;r<this.sample_count;r++){if(this.flags&o.TRUN_FLAGS_DURATION){this.sample_duration[r]=e.readUint32()}if(this.flags&o.TRUN_FLAGS_SIZE){this.sample_size[r]=e.readUint32()}if(this.flags&o.TRUN_FLAGS_FLAGS){this.sample_flags[r]=e.readUint32()}if(this.flags&o.TRUN_FLAGS_CTS_OFFSET){if(this.version===0){this.sample_composition_time_offset[r]=e.readUint32()}else{this.sample_composition_time_offset[r]=e.readInt32()}}}}};o.tfdtBox.prototype.parse=function(e){this.parseFullHeader(e);if(this.version==1){this.baseMediaDecodeTime=e.readUint64()}else{this.baseMediaDecodeTime=e.readUint32()}};o.paylBox.prototype.parse=function(e){this.text=e.readString(this.size)};o.subsBox.prototype.parse=function(e){var t,r;var i;var n;this.parseFullHeader(e);i=e.readUint32();this.samples=[];for(t=0;t<i;t++){var a={};this.samples[t]=a;a.sample_delta=e.readUint32();a.subsamples=[];n=e.readUint16();if(n>0){for(r=0;r<n;r++){var s={};a.subsamples.push(s);if(this.version==1){s.size=e.readUint32()}else{s.size=e.readUint16()}s.priority=e.readUint8();s.discardable=e.readUint8();s.reserved=e.readUint32()}}}};o.Box.prototype.writeHeader=function(e,t){this.size+=8;if(this.size>n.MAX_SIZE){this.size+=8}s.d("BoxWriter","Writing box "+this.type+" of size: "+this.size+" at position "+e.position+(t||""));if(this.size>n.MAX_SIZE){e.writeUint32(1)}else{this.sizePosition=e.position;e.writeUint32(this.size)}e.writeString(this.type,null,4);if(this.size>n.MAX_SIZE){e.writeUint64(this.size)}};o.FullBox.prototype.writeHeader=function(e){this.size+=4;o.Box.prototype.writeHeader.call(this,e," v="+this.version+" f="+this.flags);e.writeUint8(this.version);e.writeUint24(this.flags)};o.Box.prototype.write=function(e){if(this.type==="mdat"){if(this.data){this.size=this.data.length;this.writeHeader(e);e.writeUint8Array(this.data)}}else{this.size=this.data.length;this.writeHeader(e);e.writeUint8Array(this.data)}};o.ContainerBox.prototype.write=function(e){this.size=0;this.writeHeader(e);for(var t=0;t<this.boxes.length;t++){if(this.boxes[t]){this.boxes[t].write(e);this.size+=this.boxes[t].size}}s.d("BoxWriter","Adjusting box "+this.type+" with new size "+this.size);e.adjustUint32(this.sizePosition,this.size)};o.TrackReferenceTypeBox.prototype.write=function(e){this.size=this.track_ids.length*4;this.writeHeader(e);e.writeUint32Array(this.track_ids)};o.ftypBox.prototype.write=function(e){this.size=8+4*this.compatible_brands.length;this.writeHeader(e);e.writeString(this.major_brand,null,4);e.writeUint32(this.minor_version);for(var t=0;t<this.compatible_brands.length;t++){e.writeString(this.compatible_brands[t],null,4)}};o.mvhdBox.prototype.write=function(e){this.version=0;this.flags=0;this.size=23*4+2*2;this.writeHeader(e);e.writeUint32(this.creation_time);e.writeUint32(this.modification_time);e.writeUint32(this.timescale);e.writeUint32(this.duration);e.writeUint32(this.rate);e.writeUint16(this.volume<<8);e.writeUint16(0);e.writeUint32(0);e.writeUint32(0);e.writeUint32Array(this.matrix);e.writeUint32(0);e.writeUint32(0);e.writeUint32(0);e.writeUint32(0);e.writeUint32(0);e.writeUint32(0);e.writeUint32(this.next_track_id)};o.tkhdBox.prototype.write=function(e){this.version=0;this.size=4*18+2*4;this.writeHeader(e);e.writeUint32(this.creation_time);e.writeUint32(this.modification_time);e.writeUint32(this.track_id);e.writeUint32(0);e.writeUint32(this.duration);e.writeUint32(0);e.writeUint32(0);e.writeInt16(this.layer);e.writeInt16(this.alternate_group);e.writeInt16(this.volume<<8);e.writeUint16(0);e.writeInt32Array(this.matrix);e.writeUint32(this.width);e.writeUint32(this.height)};o.mdhdBox.prototype.write=function(e){this.size=4*4+2*2;this.flags=0;this.version=0;this.writeHeader(e);e.writeUint32(this.creation_time);e.writeUint32(this.modification_time);e.writeUint32(this.timescale);e.writeUint32(this.duration);e.writeUint16(this.language);e.writeUint16(0)};o.hdlrBox.prototype.write=function(e){this.size=5*4+this.name.length+1;this.version=0;this.flags=0;this.writeHeader(e);e.writeUint32(0);e.writeString(this.handler,null,4);e.writeUint32(0);e.writeUint32(0);e.writeUint32(0);e.writeCString(this.name)};o.stsdBox.prototype.write=function(e){var t;this.version=0;this.flags=0;this.size=0;this.writeHeader(e);e.writeUint32(this.entries.length);this.size+=4;for(t=0;t<this.entries.length;t++){this.entries[t].write(e);this.size+=this.entries[t].size}s.d("BoxWriter","Adjusting box "+this.type+" with new size "+this.size);e.adjustUint32(this.sizePosition,this.size)};o.SampleEntry.prototype.writeHeader=function(e){this.size=8;o.Box.prototype.writeHeader.call(this,e);e.writeUint8(0);e.writeUint8(0);e.writeUint8(0);e.writeUint8(0);e.writeUint8(0);e.writeUint8(0);e.writeUint16(this.data_reference_index)};o.SampleEntry.prototype.writeFooter=function(e){for(var t=0;t<this.boxes.length;t++){this.boxes[t].write(e);this.size+=this.boxes[t].size}s.d("BoxWriter","Adjusting box "+this.type+" with new size "+this.size);e.adjustUint32(this.sizePosition,this.size)};o.SampleEntry.prototype.write=function(e){this.writeHeader(e);this.writeFooter(e)};o.VisualSampleEntry.prototype.write=function(e){this.writeHeader(e);this.size+=2*7+6*4+32;e.writeUint16(0);e.writeUint16(0);e.writeUint32(0);e.writeUint32(0);e.writeUint32(0);e.writeUint16(this.width-this.width%2);e.writeUint16(this.height-this.height%2);e.writeUint32(this.horizresolution);e.writeUint32(this.vertresolution);e.writeUint32(0);e.writeUint16(this.frame_count);e.writeString(this.compressorname,null,32);e.writeUint16(this.depth);e.writeInt16(-1);this.writeFooter(e)};o.AudioSampleEntry.prototype.write=function(e){this.writeHeader(e);this.size+=2*4+3*4;e.writeUint32(0);e.writeUint32(0);e.writeUint16(this.channel_count);e.writeUint16(this.samplesize);e.writeUint16(0);e.writeUint16(0);e.writeUint32(this.samplerate<<16);this.writeFooter(e)};o.avcCBox.prototype.write=function(e){var t;this.size=7;for(t=0;t<this.SPS.length;t++){this.size+=2+this.SPS[t].length}for(t=0;t<this.PPS.length;t++){this.size+=2+this.PPS[t].length}if(this.ext){this.size+=this.ext.length}this.writeHeader(e);e.writeUint8(this.configurationVersion);e.writeUint8(this.AVCProfileIndication);e.writeUint8(this.profile_compatibility);e.writeUint8(this.AVCLevelIndication);e.writeUint8(this.lengthSizeMinusOne+(63<<2));e.writeUint8(this.SPS.length+(7<<5));for(t=0;t<this.SPS.length;t++){e.writeUint16(this.SPS[t].length);e.writeUint8Array(this.SPS[t])}e.writeUint8(this.PPS.length);for(t=0;t<this.PPS.length;t++){e.writeUint16(this.PPS[t].length);e.writeUint8Array(this.PPS[t])}if(this.ext){e.writeUint8Array(this.ext)}};o.cttsBox.prototype.write=function(e){var t;this.version=1;this.flags=0;this.size=4+8*this.sample_counts.length;this.writeHeader(e);e.writeUint32(this.sample_counts.length);for(t=0;t<this.sample_counts.length;t++){e.writeUint32(this.sample_counts[t]);e.writeInt32(this.sample_offsets[t])}};o.cslgBox.prototype.write=function(e){var t;this.version=0;this.flags=0;this.size=4*5;this.writeHeader(e);e.writeInt32(this.compositionToDTSShift);e.writeInt32(this.leastDecodeToDisplayDelta);e.writeInt32(this.greatestDecodeToDisplayDelta);e.writeInt32(this.compositionStartTime);e.writeInt32(this.compositionEndTime)};o.sttsBox.prototype.write=function(e){var t;this.version=0;this.flags=0;this.size=4+8*this.sample_counts.length;this.writeHeader(e);e.writeUint32(this.sample_counts.length);for(t=0;t<this.sample_counts.length;t++){e.writeUint32(this.sample_counts[t]);e.writeUint32(this.sample_deltas[t])}};o.stssBox.prototype.write=function(e){this.version=0;this.flags=0;this.size=4+4*this.sample_numbers.length;this.writeHeader(e);e.writeUint32(this.sample_numbers.length);e.writeUint32Array(this.sample_numbers)};o.stshBox.prototype.write=function(e){var t;this.version=0;this.flags=0;this.size=4+8*this.shadowed_sample_numbers.length;this.writeHeader(e);e.writeUint32(this.shadowed_sample_numbers.length);for(t=0;t<this.shadowed_sample_numbers.length;t++){e.writeUint32(this.shadowed_sample_numbers[t]);e.writeUint32(this.sync_sample_numbers[t])}};o.stcoBox.prototype.write=function(e){this.version=0;this.flags=0;this.size=4+4*this.chunk_offsets.length;this.writeHeader(e);e.writeUint32(this.chunk_offsets.length);e.writeUint32Array(this.chunk_offsets)};o.co64Box.prototype.write=function(e){var t;this.version=0;this.flags=0;this.size=4+8*this.chunk_offsets.length;this.writeHeader(e);e.writeUint32(this.chunk_offsets.length);for(t=0;t<this.chunk_offsets.length;t++){e.writeUint64(this.chunk_offsets[t])}};o.stscBox.prototype.write=function(e){var t;this.version=0;this.flags=0;this.size=4+12*this.first_chunk.length;this.writeHeader(e);e.writeUint32(this.first_chunk.length);for(t=0;t<this.first_chunk.length;t++){e.writeUint32(this.first_chunk[t]);e.writeUint32(this.samples_per_chunk[t]);e.writeUint32(this.sample_description_index[t])}};o.stszBox.prototype.write=function(e){var t;this.version=0;this.flags=0;this.size=8+12*this.sample_sizes.length;this.writeHeader(e);e.writeUint32(0);e.writeUint32(this.sample_sizes.length);e.writeUint32Array(this.sample_sizes)};o.mehdBox.prototype.write=function(e){this.version=0;this.flags=0;this.size=4;this.writeHeader(e);e.writeUint32(this.fragment_duration)};o.trexBox.prototype.write=function(e){this.version=0;this.flags=0;this.size=4*5;this.writeHeader(e);e.writeUint32(this.track_id);e.writeUint32(this.default_sample_description_index);e.writeUint32(this.default_sample_duration);e.writeUint32(this.default_sample_size);e.writeUint32(this.default_sample_flags)};o.mfhdBox.prototype.write=function(e){this.version=0;this.flags=0;this.size=4;this.writeHeader(e);e.writeUint32(this.sequence_number)};o.tfhdBox.prototype.write=function(e){this.version=0;this.size=4;if(this.flags&o.TFHD_FLAG_BASE_OFFSET){this.size+=8}if(this.flags&o.TFHD_FLAG_SAMPLE_DESC){this.size+=4}if(this.flags&o.TFHD_FLAG_SAMPLE_DUR){this.size+=4}if(this.flags&o.TFHD_FLAG_SAMPLE_SIZE){this.size+=4}if(this.flags&o.TFHD_FLAG_SAMPLE_FLAGS){this.size+=4}this.writeHeader(e);e.writeUint32(this.track_id);if(this.flags&o.TFHD_FLAG_BASE_OFFSET){e.writeUint64(this.base_data_offset)}if(this.flags&o.TFHD_FLAG_SAMPLE_DESC){e.writeUint32(this.default_sample_description_index)}if(this.flags&o.TFHD_FLAG_SAMPLE_DUR){e.writeUint32(this.default_sample_duration)}if(this.flags&o.TFHD_FLAG_SAMPLE_SIZE){e.writeUint32(this.default_sample_size)}if(this.flags&o.TFHD_FLAG_SAMPLE_FLAGS){e.writeUint32(this.default_sample_flags)}};o.trunBox.prototype.write=function(e){this.version=0;this.size=4;if(this.flags&o.TRUN_FLAGS_DATA_OFFSET){this.size+=4}if(this.flags&o.TRUN_FLAGS_FIRST_FLAG){this.size+=4}if(this.flags&o.TRUN_FLAGS_DURATION){this.size+=4*this.sample_duration.length}if(this.flags&o.TRUN_FLAGS_SIZE){this.size+=4*this.sample_size.length}if(this.flags&o.TRUN_FLAGS_FLAGS){this.size+=4*this.sample_flags.length}if(this.flags&o.TRUN_FLAGS_CTS_OFFSET){this.size+=4*this.sample_composition_time_offset.length}this.writeHeader(e);e.writeUint32(this.sample_count);if(this.flags&o.TRUN_FLAGS_DATA_OFFSET){this.data_offset_position=e.position;e.writeInt32(this.data_offset)}if(this.flags&o.TRUN_FLAGS_FIRST_FLAG){e.writeUint32(this.first_sample_flags)}for(var t=0;t<this.sample_count;t++){if(this.flags&o.TRUN_FLAGS_DURATION){e.writeUint32(this.sample_duration[t])}if(this.flags&o.TRUN_FLAGS_SIZE){e.writeUint32(this.sample_size[t])}if(this.flags&o.TRUN_FLAGS_FLAGS){e.writeUint32(this.sample_flags[t])}if(this.flags&o.TRUN_FLAGS_CTS_OFFSET){if(this.version===0){e.writeUint32(this.sample_composition_time_offset[t])}else{e.writeInt32(this.sample_composition_time_offset[t])}}}};o.tfdtBox.prototype.write=function(e){this.version=0;this.flags=0;this.size=4;this.writeHeader(e);if(this.version==1){e.writeUint64(this.baseMediaDecodeTime)}else{e.writeUint32(this.baseMediaDecodeTime)}}},{"./DataStream":174,"./descriptor":176,"./log":178}],176:[function(e,t,r){var i=e("./log");var n=function(){var e=3;var t=4;var r=5;var n=6;var a=[];a[e]="ES_Descriptor";a[t]="DecoderConfigDescriptor";a[r]="DecoderSpecificInfo";a[n]="SLConfigDescriptor";var s=this;var o={};this.parseOneDescriptor=function(e){var t=0;var r=0;var n;var s;var f;n=e.readUint8();t++;f=e.readUint8();t++;while(f&128){r=(f&127)<<7;f=e.readUint8();t++}r+=f&127;i.d("MPEG4DescriptorParser","Found "+(a[n]|"Descriptor "+n)+", size "+r+" at position "+e.position);if(a[n]){s=new o[a[n]](r)}else{s=new o.Descriptor(r)}s.parse(e);return s};o.Descriptor=function(e,t){this.tag=e;this.size=t;this.descs=[]};o.Descriptor.prototype.parse=function(e){this.data=e.readUint8Array(this.size)};o.Descriptor.prototype.findDescriptor=function(e){for(var t=0;t<this.descs.length;t++){if(this.descs[t].tag==e){return this.descs[t]}}return null};o.Descriptor.prototype.parseRemainingDescriptors=function(e){var t=e.position;while(e.position<t+this.size){var r=s.parseOneDescriptor(e);this.descs.push(r)}};o.ES_Descriptor=function(t){o.Descriptor.call(this,e,t)};o.ES_Descriptor.prototype=new o.Descriptor;o.ES_Descriptor.prototype.parse=function(e){this.ES_ID=e.readUint16();this.flags=e.readUint8();this.size-=3;if(this.flags&128){this.dependsOn_ES_ID=e.readUint16();this.size-=2}else{this.dependsOn_ES_ID=0}if(this.flags&64){var t=e.readUint8();this.URL=e.readString(t);this.size-=t+1}else{this.URL=null}if(this.flags&32){this.OCR_ES_ID=e.readUint16();this.size-=2}else{this.OCR_ES_ID=0}this.parseRemainingDescriptors(e)};o.ES_Descriptor.prototype.getOTI=function(e){var r=this.findDescriptor(t);if(r){return r.oti}else{return 0}};o.ES_Descriptor.prototype.getAudioConfig=function(e){var i=this.findDescriptor(t);if(!i)return null;var n=i.findDescriptor(r);if(n&&n.data){return(n.data[0]&248)>>3}else{return null}};o.DecoderConfigDescriptor=function(e){o.Descriptor.call(this,t,e)};o.DecoderConfigDescriptor.prototype=new o.Descriptor;o.DecoderConfigDescriptor.prototype.parse=function(e){this.oti=e.readUint8();this.streamType=e.readUint8();this.bufferSize=e.readUint24();this.maxBitrate=e.readUint32();this.avgBitrate=e.readUint32();this.size-=13;this.parseRemainingDescriptors(e)};o.DecoderSpecificInfo=function(e){o.Descriptor.call(this,r,e)};o.DecoderSpecificInfo.prototype=new o.Descriptor;o.SLConfigDescriptor=function(e){o.Descriptor.call(this,n,e)};o.SLConfigDescriptor.prototype=new o.Descriptor;return this};t.exports=n},{"./log":178}],177:[function(e,t,r){var i=e("./box");var n=e("./DataStream");var a=e("./log");var s=function(e){this.stream=e;this.boxes=[];this.mdats=[];this.moofs=[];this.isProgressive=false;this.lastMoofIndex=0;this.lastBoxStartPosition=0;this.parsingMdat=null;this.moovStartFound=false;this.samplesDataSize=0;this.nextParsePosition=0};t.exports=s;s.prototype.mergeNextBuffer=function(){var e;if(this.stream.bufferIndex+1<this.stream.nextBuffers.length){e=this.stream.nextBuffers[this.stream.bufferIndex+1];if(e.fileStart===this.stream.buffer.fileStart+this.stream.buffer.byteLength){var t=this.stream.buffer.byteLength;var r=this.stream.buffer.usedBytes;var i=this.stream.buffer.fileStart;this.stream.nextBuffers[this.stream.bufferIndex]=ArrayBuffer.concat(this.stream.buffer,e);this.stream.buffer=this.stream.nextBuffers[this.stream.bufferIndex];this.stream.nextBuffers.splice(this.stream.bufferIndex+1,1);this.stream.buffer.usedBytes=r;this.stream.buffer.fileStart=i;a.d("ISOFile","Concatenating buffer for box parsing (length: "+t+"->"+this.stream.buffer.byteLength+")");return true}else{return false}}else{return false}};s.prototype.parse=function(){var e;var t;var r;a.d("ISOFile","Starting parsing with buffer #"+this.stream.bufferIndex+" (fileStart: "+this.stream.buffer.fileStart+" - Length: "+this.stream.buffer.byteLength+") from position "+this.lastBoxStartPosition+" ("+(this.stream.buffer.fileStart+this.lastBoxStartPosition)+" in the file)");this.stream.seek(this.lastBoxStartPosition);while(true){if(this.parsingMdat!==null){r=this.parsingMdat;e=this.reposition(false,r.fileStart+r.hdr_size+r.size);if(e){a.d("ISOFile","Found 'mdat' end in buffer #"+this.stream.bufferIndex);this.parsingMdat=null;continue}else{this.nextParsePosition=this.findEndContiguousBuf(this.stream.bufferIndex);return}}else{this.lastBoxStartPosition=this.stream.position;t=i.parseOneBox(this.stream);if(t.code===i.ERR_NOT_ENOUGH_DATA){if(t.type==="mdat"){r=new i[t.type+"Box"](t.size-t.hdr_size);this.parsingMdat=r;this.mdats.push(r);r.fileStart=this.stream.buffer.fileStart+this.stream.position;r.hdr_size=t.hdr_size;this.stream.buffer.usedBytes+=t.hdr_size;e=this.reposition(false,r.fileStart+r.hdr_size+r.size);if(e){this.parsingMdat=null;continue}else{if(!this.moovStartFound){

this.nextParsePosition=r.fileStart+r.size+r.hdr_size}else{this.nextParsePosition=this.findEndContiguousBuf(this.stream.bufferIndex)}return}}else{if(t.type==="moov"){this.moovStartFound=true;if(this.mdats.length===0){this.isProgressive=true}}else if(t.type==="free"){e=this.reposition(false,this.stream.buffer.fileStart+this.stream.position+t.size);if(e){continue}else{this.nextParsePosition=this.stream.buffer.fileStart+this.stream.position+t.size;return}}merged=this.mergeNextBuffer();if(merged){this.nextParsePosition=this.stream.buffer.fileStart+this.stream.buffer.byteLength;continue}else{if(!t.type){this.nextParsePosition=this.stream.buffer.fileStart+this.stream.buffer.byteLength}else{if(this.moovStartFound){this.nextParsePosition=this.stream.buffer.fileStart+this.stream.buffer.byteLength}else{this.nextParsePosition=this.stream.buffer.fileStart+this.stream.position+t.size}}return}}}else{r=t.box;this.boxes.push(r);switch(r.type){case"mdat":this.mdats.push(r);r.fileStart=this.stream.buffer.fileStart+r.start;break;case"moof":this.moofs.push(r);break;case"moov":this.moovStartFound=true;if(this.mdats.length===0){this.isProgressive=true}default:if(this[r.type]!==undefined){a.w("ISOFile","Duplicate Box of type: "+r.type+", overriding previous occurrence")}this[r.type]=r;break}if(r.type==="mdat"){this.stream.buffer.usedBytes+=r.hdr_size}else{this.stream.buffer.usedBytes+=t.size}}}}};s.prototype.reposition=function(e,t){var r;r=this.findPosition(e,t);if(r!==-1){this.stream.buffer=this.stream.nextBuffers[r];this.stream.bufferIndex=r;this.stream.position=t-this.stream.buffer.fileStart;a.d("ISOFile","Repositioning parser at buffer position: "+this.stream.position);return true}else{return false}};s.prototype.findPosition=function(e,t){var r;var i=null;var n=-1;if(e===true){r=0}else{r=this.stream.bufferIndex}while(r<this.stream.nextBuffers.length){i=this.stream.nextBuffers[r];if(i.fileStart<=t){n=r}else{break}r++}if(n!==-1){i=this.stream.nextBuffers[n];if(i.fileStart+i.byteLength>=t){a.d("ISOFile","Found position in existing buffer #"+n);return n}else{return-1}}else{return-1}};s.prototype.findEndContiguousBuf=function(e){var t;var r;var i;r=this.stream.nextBuffers[e];if(this.stream.nextBuffers.length>e+1){for(t=e+1;t<this.stream.nextBuffers.length;t++){i=this.stream.nextBuffers[t];if(i.fileStart===r.fileStart+r.byteLength){r=i}else{break}}}return r.fileStart+r.byteLength};s.prototype.write=function(e){for(var t=0;t<this.boxes.length;t++){this.boxes[t].write(e)}};s.prototype.writeInitializationSegment=function(e){var t;var r;var n;var s;var o;a.d("ISOFile","Generating initialization segment");this.ftyp.write(e);if(this.moov.mvex){this.initial_duration=this.moov.mvex.mehd.fragment_duration;r=-1;for(t=0;t<this.moov.boxes.length;t++){o=this.moov.boxes[t];if(o===this.moov.mvex){r=t}}if(r>-1){this.moov.boxes.splice(r,1)}this.moov.mvex=null}this.moov.mvex=new i.mvexBox;this.moov.boxes.push(this.moov.mvex);this.moov.mvex.mehd=new i.mehdBox;this.moov.mvex.boxes.push(this.moov.mvex.mehd);this.moov.mvex.mehd.fragment_duration=this.initial_duration;for(t=0;t<this.moov.traks.length;t++){if(this.moov.traks[t].ignore)continue;s=new i.trexBox;this.moov.mvex.boxes.push(s);s.track_id=this.moov.traks[t].tkhd.track_id;s.default_sample_description_index=1;s.default_sample_duration=this.moov.traks[t].samples.length>0?this.moov.traks[t].samples[0].duration:0;s.default_sample_size=0;s.default_sample_flags=1<<16}this.moov.write(e)};s.prototype.resetTables=function(){var e;var t,r,i,n,a,s,o,f;this.initial_duration=this.moov.mvhd.duration;this.moov.mvhd.duration=0;for(e=0;e<this.moov.traks.length;e++){t=this.moov.traks[e];t.tkhd.duration=0;t.mdia.mdhd.duration=0;r=t.mdia.minf.stbl.stco||t.mdia.minf.stbl.co64;r.chunk_offsets=[];i=t.mdia.minf.stbl.stsc;i.first_chunk=[];i.samples_per_chunk=[];i.sample_description_index=[];n=t.mdia.minf.stbl.stsz;n.sample_sizes=[];a=t.mdia.minf.stbl.stts;a.sample_counts=[];a.sample_deltas=[];s=t.mdia.minf.stbl.ctts;if(s){s.sample_counts=[];s.sample_offsets=[]}o=t.mdia.minf.stbl.stss;if(o){o.sample_numbers=new Uint32Array(0)}f=t.mdia.minf.stbl.sdtp;var u=t.mdia.minf.stbl.boxes.indexOf(f);if(u!=-1)t.mdia.minf.stbl.boxes[u]=null}};s.prototype.buildSampleLists=function(){var e,t,r;var i,n,a,s,o,f,u,l,c;var p,d,h,m,v;var g,y,_,b,w,x;this.originalMvex=this.moov.mvex;for(e=0;e<this.moov.traks.length;e++){i=this.moov.traks[e];i.samples=[];n=i.mdia.minf.stbl.stco||i.mdia.minf.stbl.co64;a=i.mdia.minf.stbl.stsc;s=i.mdia.minf.stbl.stsz;o=i.mdia.minf.stbl.stts;f=i.mdia.minf.stbl.ctts;u=i.mdia.minf.stbl.stss;l=i.mdia.minf.stbl.stsd;c=i.mdia.minf.stbl.subs;g=-1;y=-1;_=-1;b=-1;w=0;subs_entry_index=0;last_subs_sample_index=0;for(t=0;t<s.sample_sizes.length;t++){var k={};k.number=t;k.track_id=i.tkhd.track_id;k.timescale=i.mdia.mdhd.timescale;i.samples[t]=k;k.size=s.sample_sizes[t];if(t===0){d=1;p=0;k.chunk_index=d;k.chunk_run_index=p;v=a.samples_per_chunk[p];m=0;if(p+1<a.first_chunk.length){h=a.first_chunk[p+1]-1}else{h=Infinity}}else{if(t<v){k.chunk_index=d;k.chunk_run_index=p}else{d++;k.chunk_index=d;m=0;if(d<=h){}else{p++;if(p+1<a.first_chunk.length){h=a.first_chunk[p+1]-1}else{h=Infinity}}k.chunk_run_index=p;v+=a.samples_per_chunk[p]}}k.description=l.entries[a.sample_description_index[k.chunk_run_index]-1];k.offset=n.chunk_offsets[k.chunk_index-1]+m;m+=k.size;if(t>g){y++;if(g<0){g=0}g+=o.sample_counts[y]}if(t>0){i.samples[t-1].duration=o.sample_deltas[y];k.dts=i.samples[t-1].dts+i.samples[t-1].duration}else{k.dts=0}if(f){if(t>_){b++;_+=f.sample_counts[b]}k.cts=i.samples[t].dts+f.sample_offsets[b]}else{k.cts=k.dts}if(u){if(t==u.sample_numbers[w]-1){k.is_rap=true;w++}else{k.is_rap=false}}else{k.is_rap=true}if(c){if(c.samples[subs_entry_index].sample_delta+last_subs_sample_index==t){k.subsamples=c.samples[subs_entry_index].subsamples;last_subs_sample_index+=c.samples[subs_entry_index].sample_delta}}}if(t>0)i.samples[t-1].duration=i.mdia.mdhd.duration-i.samples[t-1].dts}};s.prototype.updateSampleLists=function(){var e,t,r;var n,a,s,o;var f;var u,l,c,p,d;var h;while(this.lastMoofIndex<this.moofs.length){u=this.moofs[this.lastMoofIndex];this.lastMoofIndex++;if(u.type=="moof"){l=u;for(e=0;e<l.trafs.length;e++){c=l.trafs[e];p=this.getTrackById(c.tfhd.track_id);d=this.getTrexById(c.tfhd.track_id);if(c.tfhd.flags&i.TFHD_FLAG_SAMPLE_DESC){n=c.tfhd.default_sample_description_index}else{n=d.default_sample_description_index}if(c.tfhd.flags&i.TFHD_FLAG_SAMPLE_DUR){a=c.tfhd.default_sample_duration}else{a=d.default_sample_duration}if(c.tfhd.flags&i.TFHD_FLAG_SAMPLE_SIZE){s=c.tfhd.default_sample_size}else{s=d.default_sample_size}if(c.tfhd.flags&i.TFHD_FLAG_SAMPLE_FLAGS){o=c.tfhd.default_sample_flags}else{o=d.default_sample_flags}for(t=0;t<c.truns.length;t++){var m=c.truns[t];for(r=0;r<m.sample_count;r++){h={};c.first_sample_index=p.samples.length;p.samples.push(h);h.track_id=p.tkhd.track_id;h.timescale=p.mdia.mdhd.timescale;h.description=p.mdia.minf.stbl.stsd.entries[n-1];h.size=s;if(m.flags&i.TRUN_FLAGS_SIZE){h.size=m.sample_size[r]}h.duration=a;if(m.flags&i.TRUN_FLAGS_DURATION){h.duration=m.sample_duration[r]}if(p.first_traf_merged||r>0){h.dts=p.samples[p.samples.length-2].dts+p.samples[p.samples.length-2].duration}else{if(c.tfdt){h.dts=c.tfdt.baseMediaDecodeTime}else{h.dts=0}p.first_traf_merged=true}h.cts=h.dts;if(m.flags&i.TRUN_FLAGS_CTS_OFFSET){h.cts=h.dts+m.sample_composition_time_offset[r]}sample_flags=o;if(m.flags&i.TRUN_FLAGS_FLAGS){sample_flags=m.sample_flags[r]}else if(r===0&&m.flags&i.TRUN_FLAGS_FIRST_FLAG){sample_flags=m.first_sample_flags}h.is_rap=sample_flags>>16&1?false:true;var v=c.tfhd.flags&i.TFHD_FLAG_BASE_DATA_OFFSET?true:false;var g=c.tfhd.flags&i.TFHD_FLAG_DEFAULT_BASE_IS_MOOF?true:false;var y=m.flags&i.TRUN_FLAGS_DATA_OFFSET?true:false;var _=0;if(!v){if(!g){if(t===0){_=l.fileStart}else{_=f}}else{_=l.fileStart}}else{_=c.tfhd.base_data_offset}if(t===0&&r===0){if(y){h.offset=_+m.data_offset}else{h.offset=_}}else{h.offset=f}f=h.offset+h.size}}if(c.subs){var b=c.first_sample_index;for(t=0;t<c.subs.samples.length;t++){b+=c.subs.samples[t].sample_delta;h=p.samples[b-1];h.subsamples=c.subs.samples[t].subsamples}}}}}};s.prototype.getCodecs=function(){var e;var t="";for(e=0;e<this.moov.traks.length;e++){var r=this.moov.traks[e];if(e>0){t+=","}t+=r.mdia.minf.stbl.stsd.entries[0].getCodec()}return t};s.prototype.getTrexById=function(e){var t;if(!this.originalMvex)return null;for(t=0;t<this.originalMvex.trexs.length;t++){var r=this.originalMvex.trexs[t];if(r.track_id==e)return r}return null};s.prototype.getTrackById=function(e){for(var t=0;t<this.moov.traks.length;t++){var r=this.moov.traks[t];if(r.tkhd.track_id==e)return r}return null};s.prototype.getSample=function(e,t){var r;var i;var s=e.samples[t];if(!this.moov){return null}if(!s.data){s.data=new Uint8Array(s.size);s.alreadyRead=0;this.samplesDataSize+=s.size;a.d("ISOFile","Allocating sample #"+t+" on track #"+e.tkhd.track_id+" of size "+s.size+" (total: "+this.samplesDataSize+")")}else if(s.alreadyRead==s.size){return s}for(i=0;i<this.stream.nextBuffers.length;i++){r=this.stream.nextBuffers[i];if(s.offset+s.alreadyRead>=r.fileStart&&s.offset+s.alreadyRead<r.fileStart+r.byteLength){var o=r.byteLength-(s.offset+s.alreadyRead-r.fileStart);if(s.size-s.alreadyRead<=o){a.d("ISOFile","Getting sample #"+t+" data (alreadyRead: "+s.alreadyRead+" offset: "+(s.offset+s.alreadyRead-r.fileStart)+" size: "+(s.size-s.alreadyRead)+")");n.memcpy(s.data.buffer,s.alreadyRead,r,s.offset+s.alreadyRead-r.fileStart,s.size-s.alreadyRead);s.alreadyRead=s.size;r.usedBytes+=s.size-s.alreadyRead;if(r.usedBytes===r.byteLength){this.stream.nextBuffers.splice(i,1);i--}return s}else{a.d("ISOFile","Getting sample data (alreadyRead: "+s.alreadyRead+" offset: "+(s.offset+s.alreadyRead-r.fileStart)+" size: "+o+")");n.memcpy(s.data.buffer,s.alreadyRead,r,s.offset+s.alreadyRead-r.fileStart,o);s.alreadyRead+=o;r.usedBytes+=o;if(r.usedBytes===r.byteLength){this.stream.nextBuffers.splice(i,1);i--}}}}return null};s.prototype.releaseSample=function(e,t){var r=e.samples[t];r.data=null;this.samplesDataSize-=r.size;return r.size}},{"./DataStream":174,"./box":175,"./log":178}],178:[function(e,t,r){var i=function(){var e=new Date;var t=4;var r=3;var n=2;var a=1;var s=t;var o={setLogLevel:function(e){if(e==this.d)s=a;else if(e==this.i)s=n;else if(e==this.w)s=r;else if(e==this.e)s=t;else s=t},d:function(t,r){if(a>=s){console.debug("["+i.getDurationString(new Date-e,1e3)+"]","["+t+"]",r)}},i:function(t,r){if(n>=s){console.info("["+i.getDurationString(new Date-e,1e3)+"]","["+t+"]",r)}},w:function(t,n){if(r>=s){console.warn("["+i.getDurationString(new Date-e,1e3)+"]","["+t+"]",n)}},e:function(r,n){if(t>=s){console.error("["+i.getDurationString(new Date-e,1e3)+"]","["+r+"]",n)}}};return o}();t.exports=i;i.getDurationString=function(e,t){function r(e,t){var r=""+e;var i=r.split(".");while(i[0].length<t){i[0]="0"+i[0]}return i.join(".")}var i=t||1;var n=e/i;var a=Math.floor(n/3600);n-=a*3600;var s=Math.floor(n/60);n-=s*60;var o=n*1e3;n=Math.floor(n);o-=n*1e3;o=Math.floor(o);return""+a+":"+r(s,2)+":"+r(n,2)+"."+r(o,3)};i.printRanges=function(e){var t=e.length;if(t>0){var r="";for(var n=0;n<t;n++){if(n>0)r+=",";r+="["+i.getDurationString(e.start(n))+","+i.getDurationString(e.end(n))+"]"}return r}else{return"(empty)"}}},{}],179:[function(e,t,r){var n=e("./box");var a=e("./DataStream");var s=e("./isofile");var o=e("./log");var f=function(){this.inputStream=null;this.nextBuffers=[];this.inputIsoFile=null;this.onMoovStart=null;this.moovStartSent=false;this.onReady=null;this.readySent=false;this.onSegment=null;this.onSamples=null;this.onError=null;this.sampleListBuilt=false;this.fragmentedTracks=[];this.extractedTracks=[];this.isFragmentationStarted=false;this.nextMoofNumber=0};t.exports=f;f.prototype.setSegmentOptions=function(e,t,r){var i=this.inputIsoFile.getTrackById(e);if(i){var n={};this.fragmentedTracks.push(n);n.id=e;n.user=t;n.trak=i;i.nextSample=0;n.segmentStream=null;n.nb_samples=1e3;n.rapAlignement=true;if(r){if(r.nbSamples)n.nb_samples=r.nbSamples;if(r.rapAlignement)n.rapAlignement=r.rapAlignement}}};f.prototype.unsetSegmentOptions=function(e){var t=-1;for(var r=0;r<this.fragmentedTracks.length;r++){var i=this.fragmentedTracks[r];if(i.id==e){t=r}}if(t>-1){this.fragmentedTracks.splice(t,1)}};f.prototype.setExtractionOptions=function(e,t,r){var i=this.inputIsoFile.getTrackById(e);if(i){var n={};this.extractedTracks.push(n);n.id=e;n.user=t;n.trak=i;i.nextSample=0;n.nb_samples=1e3;n.samples=[];if(r){if(r.nbSamples)n.nb_samples=r.nbSamples}}};f.prototype.unsetExtractionOptions=function(e){var t=-1;for(var r=0;r<this.extractedTracks.length;r++){var i=this.extractedTracks[r];if(i.id==e){t=r}}if(t>-1){this.extractedTracks.splice(t,1)}};f.prototype.createSingleSampleMoof=function(e){var t=new n.moofBox;var r=new n.mfhdBox;r.sequence_number=this.nextMoofNumber;this.nextMoofNumber++;t.boxes.push(r);var i=new n.trafBox;t.boxes.push(i);var a=new n.tfhdBox;i.boxes.push(a);a.track_id=e.track_id;a.flags=n.TFHD_FLAG_DEFAULT_BASE_IS_MOOF;var s=new n.tfdtBox;i.boxes.push(s);s.baseMediaDecodeTime=e.dts;var o=new n.trunBox;i.boxes.push(o);t.trun=o;o.flags=n.TRUN_FLAGS_DATA_OFFSET|n.TRUN_FLAGS_DURATION|n.TRUN_FLAGS_SIZE|n.TRUN_FLAGS_FLAGS|n.TRUN_FLAGS_CTS_OFFSET;o.data_offset=0;o.first_sample_flags=0;o.sample_count=1;o.sample_duration=[];o.sample_duration[0]=e.duration;o.sample_size=[];o.sample_size[0]=e.size;o.sample_flags=[];o.sample_flags[0]=0;o.sample_composition_time_offset=[];o.sample_composition_time_offset[0]=e.cts-e.dts;return t};f.prototype.createFragment=function(e,t,r,i){var s=this.inputIsoFile.getTrackById(t);var f=this.inputIsoFile.getSample(s,r);if(f==null){if(this.nextSeekPosition){this.nextSeekPosition=Math.min(s.samples[r].offset,this.nextSeekPosition)}else{this.nextSeekPosition=s.samples[r].offset}return null}var u=i||new a;u.endianness=a.BIG_ENDIAN;var l=this.createSingleSampleMoof(f);l.write(u);l.trun.data_offset=l.size+8;o.d("BoxWriter","Adjusting data_offset with new value "+l.trun.data_offset);u.adjustUint32(l.trun.data_offset_position,l.trun.data_offset);var c=new n.mdatBox;c.data=f.data;c.write(u);return u};ArrayBuffer.concat=function(e,t){o.d("ArrayBuffer","Trying to create a new buffer of size: "+(e.byteLength+t.byteLength));var r=new Uint8Array(e.byteLength+t.byteLength);r.set(new Uint8Array(e),0);r.set(new Uint8Array(t),e.byteLength);return r.buffer};f.prototype.reduceBuffer=function(e,t,r){var i;i=new Uint8Array(r);i.set(new Uint8Array(e,t,r));i.buffer.fileStart=e.fileStart+t;i.buffer.usedBytes=0;return i.buffer};f.prototype.insertBuffer=function(e){var t=true;for(var r=0;r<this.nextBuffers.length;r++){var i=this.nextBuffers[r];if(e.fileStart<=i.fileStart){if(e.fileStart===i.fileStart){if(e.byteLength>i.byteLength){this.nextBuffers.splice(r,1);r--;continue}else{o.w("MP4Box","Buffer (fileStart: "+e.fileStart+" - Length: "+e.byteLength+") already appended, ignoring")}}else{if(e.fileStart+e.byteLength<=i.fileStart){}else{e=this.reduceBuffer(e,0,i.fileStart-e.fileStart)}o.d("MP4Box","Appending new buffer (fileStart: "+e.fileStart+" - Length: "+e.byteLength+")");this.nextBuffers.splice(r,0,e);if(r===0&&this.inputStream!==null){this.inputStream.buffer=e}}t=false;break}else if(e.fileStart<i.fileStart+i.byteLength){var n=i.fileStart+i.byteLength-e.fileStart;var a=e.byteLength-n;if(a>0){e=this.reduceBuffer(e,n,a)}else{t=false;break}}}if(t){o.d("MP4Box","Appending new buffer (fileStart: "+e.fileStart+" - Length: "+e.byteLength+")");this.nextBuffers.push(e);if(r===0&&this.inputStream!==null){this.inputStream.buffer=e}}};f.prototype.processSamples=function(){var e;var t;if(this.isFragmentationStarted&&this.onSegment!==null){for(e=0;e<this.fragmentedTracks.length;e++){var r=this.fragmentedTracks[e];t=r.trak;while(t.nextSample<t.samples.length){o.d("MP4Box","Creating media fragment on track #"+r.id+" for sample "+t.nextSample);var i=this.createFragment(this.inputIsoFile,r.id,t.nextSample,r.segmentStream);if(i){r.segmentStream=i;t.nextSample++}else{break}if(t.nextSample%r.nb_samples===0||t.nextSample>=t.samples.length){o.i("MP4Box","Sending fragmented data on track #"+r.id+" for samples ["+(t.nextSample-r.nb_samples)+","+(t.nextSample-1)+"]");if(this.onSegment){this.onSegment(r.id,r.user,r.segmentStream.buffer,t.nextSample)}r.segmentStream=null;if(r!==this.fragmentedTracks[e]){break}}}}}if(this.onSamples!==null){for(e=0;e<this.extractedTracks.length;e++){var n=this.extractedTracks[e];t=n.trak;while(t.nextSample<t.samples.length){o.d("MP4Box","Exporting on track #"+n.id+" sample #"+t.nextSample);var a=this.inputIsoFile.getSample(t,t.nextSample);if(a){t.nextSample++;n.samples.push(a)}else{return}if(t.nextSample%n.nb_samples===0||t.nextSample>=t.samples.length){o.d("MP4Box","Sending samples on track #"+n.id+" for sample "+t.nextSample);if(this.onSamples){this.onSamples(n.id,n.user,n.samples)}n.samples=[];if(n!==this.extractedTracks[e]){break}}}}}};f.prototype.appendBuffer=function(e){var t;var r;if(e===null||e===undefined){throw"Buffer must be defined and non empty"}if(e.fileStart===undefined){throw"Buffer must have a fileStart property"}if(e.byteLength===0){o.w("MP4Box","Ignoring empty buffer (fileStart: "+e.fileStart+")");return}e.usedBytes=0;this.insertBuffer(e);if(!this.inputStream){if(this.nextBuffers.length>0){r=this.nextBuffers[0];if(r.fileStart===0){this.inputStream=new a(r,0,a.BIG_ENDIAN);this.inputStream.nextBuffers=this.nextBuffers;this.inputStream.bufferIndex=0}else{o.w("MP4Box","The first buffer should have a fileStart of 0");return}}else{o.w("MP4Box","No buffer to start parsing from");return}}if(!this.inputIsoFile){this.inputIsoFile=new s(this.inputStream)}this.inputIsoFile.parse();if(this.inputIsoFile.moovStartFound&&!this.moovStartSent){this.moovStartSent=true;if(this.onMoovStart)this.onMoovStart()}if(this.inputIsoFile.moov){if(!this.sampleListBuilt){this.inputIsoFile.buildSampleLists();this.sampleListBuilt=true}this.inputIsoFile.updateSampleLists();if(this.onReady&&!this.readySent){var i=this.getInfo();this.readySent=true;this.onReady(i)}this.processSamples();if(this.nextSeekPosition){t=this.nextSeekPosition;this.nextSeekPosition=undefined}else{t=this.inputIsoFile.nextParsePosition}var n=this.inputIsoFile.findPosition(true,t);if(n!==-1){t=this.inputIsoFile.findEndContiguousBuf(n)}o.i("MP4Box","Next buffer to fetch should have a fileStart position of "+t);return t}else{if(this.inputIsoFile!==null){return this.inputIsoFile.nextParsePosition}else{return 0}}};f.prototype.getInfo=function(){var e={};var t;var r;var n;var a=new Date(4,0,1,0,0,0,0).getTime();e.duration=this.inputIsoFile.moov.mvhd.duration;e.timescale=this.inputIsoFile.moov.mvhd.timescale;e.isFragmented=this.inputIsoFile.moov.mvex!=null;if(e.isFragmented&&this.inputIsoFile.moov.mvex.mehd){e.fragment_duration=this.inputIsoFile.moov.mvex.mehd.fragment_duration}else{e.fragment_duration=0}e.isProgressive=this.inputIsoFile.isProgressive;e.hasIOD=this.inputIsoFile.moov.iods!=null;e.brands=[];e.brands.push(this.inputIsoFile.ftyp.major_brand);e.brands=e.brands.concat(this.inputIsoFile.ftyp.compatible_brands);e.created=new Date(a+this.inputIsoFile.moov.mvhd.creation_time*1e3);e.modified=new Date(a+this.inputIsoFile.moov.mvhd.modification_time*1e3);e.tracks=[];e.audioTracks=[];e.videoTracks=[];e.subtitleTracks=[];e.metadataTracks=[];e.hintTracks=[];e.otherTracks=[];for(i=0;i<this.inputIsoFile.moov.traks.length;i++){t=this.inputIsoFile.moov.traks[i];n=t.mdia.minf.stbl.stsd.entries[0];r={};e.tracks.push(r);r.id=t.tkhd.track_id;r.references=[];if(t.tref){for(j=0;j<t.tref.boxes.length;j++){ref={};r.references.push(ref);ref.type=t.tref.boxes[j].type;ref.track_ids=t.tref.boxes[j].track_ids}}r.created=new Date(a+t.tkhd.creation_time*1e3);r.modified=new Date(a+t.tkhd.modification_time*1e3);r.movie_duration=t.tkhd.duration;r.layer=t.tkhd.layer;r.alternate_group=t.tkhd.alternate_group;r.volume=t.tkhd.volume;r.matrix=t.tkhd.matrix;r.track_width=t.tkhd.width/(1<<16);r.track_height=t.tkhd.height/(1<<16);r.timescale=t.mdia.mdhd.timescale;r.duration=t.mdia.mdhd.duration;r.codec=n.getCodec();r.language=t.mdia.mdhd.languageString;r.nb_samples=t.samples.length;r.size=0;for(j=0;j<r.nb_samples;j++){r.size+=t.samples[j].size}r.bitrate=r.size*8*r.timescale/r.duration;if(n.isAudio()){e.audioTracks.push(r);r.audio={};r.audio.sample_rate=n.getSampleRate();r.audio.channel_count=n.getChannelCount();r.audio.sample_size=n.getSampleSize()}else if(n.isVideo()){e.videoTracks.push(r);r.video={};r.video.width=n.getWidth();r.video.height=n.getHeight()}else if(n.isSubtitle()){e.subtitleTracks.push(r)}else if(n.isHint()){e.hintTracks.push(r)}else if(n.isMetadata()){e.metadataTracks.push(r)}else{e.otherTracks.push(r)}}return e};f.prototype.getInitializationSegment=function(){var e=new a;e.endianness=a.BIG_ENDIAN;this.inputIsoFile.writeInitializationSegment(e);return e.buffer};f.prototype.writeFile=function(){var e=new a;e.endianness=a.BIG_ENDIAN;this.inputIsoFile.write(e);return e.buffer};f.prototype.initializeSegmentation=function(){var e;var t;var r;var i;var n;if(this.onSegment===null){o.w("MP4Box","No segmentation callback set!")}if(!this.isFragmentationStarted){this.isFragmentationStarted=true;this.nextMoofNumber=0;this.inputIsoFile.resetTables()}i=[];for(e=0;e<this.fragmentedTracks.length;e++){for(t=0;t<this.inputIsoFile.moov.boxes.length;t++){r=this.inputIsoFile.moov.boxes[t];if(r&&r.type==="trak"){this.inputIsoFile.moov.boxes[t].ignore=true;this.inputIsoFile.moov.boxes[t]=null}}n=this.inputIsoFile.getTrackById(this.fragmentedTracks[e].id);delete n.ignore;for(t=0;t<this.inputIsoFile.moov.boxes.length;t++){r=this.inputIsoFile.moov.boxes[t];if(r==null){this.inputIsoFile.moov.boxes[t]=n;break}}seg={};seg.id=n.tkhd.track_id;seg.user=this.fragmentedTracks[e].user;seg.buffer=this.getInitializationSegment();i.push(seg)}return i};f.prototype.releaseUsedSamples=function(e,t){var r=0;var i=this.inputIsoFile.getTrackById(e);if(!i.lastValidSample)i.lastValidSample=0;for(var n=i.lastValidSample;n<t;n++){r+=this.inputIsoFile.releaseSample(i,n)}o.d("MP4Box","Track #"+e+" released samples up to "+t+" (total size: "+r+", remaining: "+this.inputIsoFile.samplesDataSize+")");i.lastValidSample=t};f.prototype.flush=function(){o.i("MP4Box","Flushing remaining samples");this.inputIsoFile.updateSampleLists();this.processSamples()};f.prototype.seekTrack=function(e,t,r){var i;var n;var a=Infinity;var s=0;var f=Infinity;var u=0;var l=0;var c;for(i=0;i<r.samples.length;i++){n=r.samples[i];if(i===0){f=n.offset;l=0;c=n.timescale}else if(n.cts>e*n.timescale){f=r.samples[i-1].offset;l=i-1;break}if(t&&n.is_rap){a=n.offset;s=n.cts;u=i}}if(t){r.nextSample=u;o.i("MP4Box","Seeking to RAP sample #"+r.nextSample+" on track "+r.tkhd.track_id+", time "+o.getDurationString(s,c)+" and offset: "+a);return{offset:a,time:s/c}}else{r.nextSample=l;o.i("MP4Box","Seeking to non-RAP sample #"+r.nextSample+" on track "+r.tkhd.track_id+", time "+o.getDurationString(e)+" and offset: "+a);return{offset:f,time:e}}};f.prototype.seek=function(e,t){var r=this.inputIsoFile.moov;var i;var n;var a;var s={offset:Infinity,time:Infinity};if(!this.inputIsoFile.moov){throw"Cannot seek: moov not received!"}else{for(a=0;a<r.traks.length;a++){i=r.traks[a];n=this.seekTrack(e,t,i);if(n.offset<s.offset){s.offset=n.offset}if(n.time<s.time){s.time=n.time}}if(s.offset===Infinity){s={offset:this.inputIsoFile.nextParsePosition,time:0}}else{var f=this.inputIsoFile.findPosition(true,s.offset);if(f!==-1){s.offset=this.inputIsoFile.findEndContiguousBuf(f)}}o.i("MP4Box","Seeking at time "+o.getDurationString(s.time,1)+" needs a buffer with a fileStart position of "+s.offset);return s}}},{"./DataStream":174,"./box":175,"./isofile":177,"./log":178}],180:[function(e,t,r){var i=e("debug")("videostream");var n=e("mp4box");var a=.01;var s=60;t.exports=function(e,t,r){r=r||{};var f=r.debugTrack||-1;var u=[];function l(){t.addEventListener("waiting",x);t.addEventListener("timeupdate",E)}l();var c=false;function p(e){c=true;t.removeEventListener("waiting",x);t.removeEventListener("timeupdate",E);if(h.readyState==="open")h.endOfStream(e)}function d(e){var r=e.buffer.buffered;var n=t.currentTime;var o=-1;for(var f=0;f<r.length;f++){var u=r.start(f);var l=r.end(f)+a;if(u>n){break}else if(o>=0||n<=l){o=l}}var c=o-n;if(c<0)c=0;i("Buffer length: %f",c);return c<=s}var h=new MediaSource;h.addEventListener("sourceopen",function(){w(0)});t.src=window.URL.createObjecturl(/sitelet?url=https%3A%2F%2Fgithub.com%2Frublebit%2Fwebtorrent%2Fblob%2Fmaster%2Fh);var m=new n;m.onError=function(e){i("MP4Box error: %s",e.message);if(b){b()}if(h.readyState==="open"){p("decode")}};var v=false;var g={};m.onReady=function(e){i("MP4 info: %o",e);e.tracks.forEach(function(e){var t;if(e.video){t="video/mp4"}else if(e.audio){t="audio/mp4"}else{return}t+='; codecs="'+e.codec+'"';if(MediaSource.isTypeSupported(t)){var r=h.addSourceBuffer(t);var i={buffer:r,arrayBuffers:[],meta:e,ended:false};r.addEventListener("updateend",A.bind(null,i));m.setSegmentOptions(e.id,null,{nbSamples:e.video?1:100});g[e.id]=i}});if(Object.keys(g).length===0){p("decode");return}var t=m.initializeSegmentation();t.forEach(function(e){S(g[e.id],e.buffer);if(e.id===f){o("init-track-"+f+".mp4",[e.buffer]);u.push(e.buffer)}});v=true};m.onSegment=function(e,t,r,i){var n=g[e];S(n,r,i===n.meta.nb_samples);if(e===f&&u){u.push(r);if(i>1e3){o("track-"+f+".mp4",u);u=null}}};var y;var _=null;var b=null;function w(t){if(t===e.length){m.flush();return}if(_&&t===y){var r=_;setTimeout(function(){if(_===r)_.resume()});return}if(_){_.destroy();b()}y=t;var n={start:y,end:e.length-1};_=e.createReadStream(n);function a(e){_.pause();var t=e.toArrayBuffer();t.fileStart=y;y+=t.byteLength;var r;try{r=m.appendBuffer(t)}catch(n){i("MP4Box threw exception: %s",n.message);if(h.readyState==="open"){p("decode")}_.destroy();b();return}w(r)}_.on("data",a);function s(){b();w(y)}_.on("end",s);function o(e){i("Stream error: %s",e.message);if(h.readyState==="open"){p("network")}}_.on("error",o);b=function(){_.removeListener("data",a);_.removeListener("end",s);_.removeListener("error",o);_=null;b=null}}function x(){if(v){k(t.currentTime)}}function k(e){if(c)l();var t=m.seek(e,true);i("Seeking to time: %d",e);i("Seeked file offset: %d",t.offset);w(t.offset)}function S(e,t,r){e.arrayBuffers.push({buffer:t,ended:r||false});A(e)}function E(){Object.keys(g).forEach(function(e){var t=g[e];if(t.blocked){A(t)}})}function A(e){if(e.buffer.updating)return;e.blocked=!d(e);if(e.blocked)return;if(e.arrayBuffers.length===0)return;var t=e.arrayBuffers.shift();var r=false;try{e.buffer.appendBuffer(t.buffer);e.ended=t.ended;r=true}catch(n){i("SourceBuffer error: %s",n.message);p("decode");return}if(r){U()}}function U(){if(h.readyState!=="open"){return}var e=Object.keys(g).every(function(e){var t=g[e];return t.ended&&!t.buffer.updating});if(e){p()}}};function o(e,t){var r=new Blob(t);var i=URL.createObjecturl(/sitelet?url=https%3A%2F%2Fgithub.com%2Frublebit%2Fwebtorrent%2Fblob%2Fmaster%2Fr);var n=document.createElement("a");n.setAttribute("href",i);n.setAttribute("download",e);n.click()}},{debug:121,mp4box:179}],181:[function(e,t,r){t.exports=i;function i(){var e={};for(var t=0;t<arguments.length;t++){var r=arguments[t];for(var i in r){if(r.hasOwnProperty(i)){e[i]=r[i]}}}return e}},{}],182:[function(e,t,r){t.exports=i;function i(e){for(var t=1;t<arguments.length;t++){var r=arguments[t];for(var i in r){if(r.hasOwnProperty(i)){e[i]=r[i]}}}return e}},{}],183:[function(e,t,r){t.exports=function i(e,t,r){if(t===undefined){return function(t,r){return i(e,t,r)}}if(r===undefined)r="0";e-=t.toString().length;if(e>0)return new Array(e+(/\./.test(t)?2:1)).join(r)+t;return t+""}},{}],184:[function(e,t,r){t.exports={name:"webtorrent",description:"Streaming torrent client",version:"0.62.3",author:{name:"Feross Aboukhadijeh",email:"feross@feross.org",url:"http://feross.org/"},bin:{webtorrent:"./bin/cmd.js"},browser:{"./lib/server.js":false,"bittorrent-dht/client":false,"fs-chunk-store":"memory-chunk-store","load-ip-set":false,ut_pex:false},bugs:{url:"https://github.com/feross/webtorrent/issues"},dependencies:{"addr-to-ip-port":"^1.0.1",bitfield:"^1.0.2","bittorrent-dht":"^3.0.0","bittorrent-swarm":"^5.0.0","chunk-store-stream":"^2.0.0",clivas:"^0.2.0","create-torrent":"^3.4.0","cross-spawn-async":"^2.0.0",debug:"^2.1.0","end-of-stream":"^1.0.0",executable:"^1.1.0","fs-chunk-store":"^1.3.4",hat:"0.0.3","immediate-chunk-store":"^1.0.7",inherits:"^2.0.1",inquirer:"^0.9.0","load-ip-set":"^1.0.3",mediasource:"^1.0.0","memory-chunk-store":"^1.2.0",mime:"^1.2.11",minimist:"^1.1.0",moment:"^2.8.3",multistream:"^2.0.2","network-address":"^1.0.0","parse-torrent":"^5.1.0","path-exists":"^1.0.0","pretty-bytes":"^2.0.1",pump:"^1.0.0","random-iterate":"^1.0.1","range-parser":"^1.0.2","re-emitter":"^1.0.0","run-parallel":"^1.0.0","simple-sha1":"^2.0.0",speedometer:"^0.1.2",thunky:"^0.1.0","torrent-discovery":"^3.0.0","torrent-piece":"^1.0.0",uniq:"^1.0.1",ut_metadata:"^2.1.0",ut_pex:"^1.0.1",videostream:"^1.1.4","windows-no-runnable":"0.0.6",xtend:"^4.0.0","zero-fill":"^2.2.0"},devDependencies:{"bittorrent-tracker":"^6.0.0",brfs:"^1.2.0",browserify:"^11.0.0",finalhandler:"^0.4.0","run-auto":"^1.0.0","serve-static":"^1.9.3","simple-get":"^1.0.0",standard:"^5.1.0",tape:"^4.0.0","uglify-js":"^2.4.15",zelda:"^2.0.0",zuul:"^3.0.0"},homepage:"http://webtorrent.io",keywords:["torrent","bittorrent","bittorrent client","streaming","download","webrtc","webrtc data","webtorrent","mad science"],license:"MIT",main:"index.js",optionalDependencies:{"airplay-js":"^0.2.3",chromecasts:"^1.5.3",nodebmc:"0.0.5"},repository:{type:"git",url:"git://github.com/feross/webtorrent.git"},scripts:{build:"browserify -s WebTorrent -e ./ | uglifyjs -m > webtorrent.min.js","build-debug":"browserify -s WebTorrent -e ./ > webtorrent.debug.js",size:"npm run build && cat webtorrent.min.js | gzip | wc -c",test:"standard && node ./bin/test.js","test-browser":"zuul -- test/basic.js","test-browser-local":"zuul --local -- test/basic.js","test-node":"tape test/*.js"}}},{}],185:[function(e,t,r){(function(r,i,n){t.exports=w;var a=e("create-torrent");var s=e("debug")("webtorrent");var o=e("bittorrent-dht/client");var f=e("events").EventEmitter;var u=e("xtend");var l=e("hat");var c=e("inherits");var p=e("load-ip-set");var d=e("run-parallel");var h=e("parse-torrent");var m=e("speedometer");var v=e("zero-fill");var g=e("path");var y=e("./lib/torrent");c(w,f);var _=e("./package.json").version;var b=_.match(/([0-9]+)/g).slice(0,2).map(v(2)).join("");function w(e){var t=this;if(!(t instanceof w))return new w(e);if(!e)e={};f.call(t);if(!s.enabled)t.setMaxListeners(0);t.destroyed=false;t.torrentPort=e.torrentPort||0;t.tracker=e.tracker!==undefined?e.tracker:true;t._rtcConfig=e.rtcConfig;t._wrtc=e.wrtc||i.WRTC;t.torrents=[];t.downloadSpeed=m();t.uploadSpeed=m();t.peerId=e.peerId===undefined?new n("-WW"+b+"-"+l(48),"utf8"):typeof e.peerId==="string"?new n(e.peerId,"hex"):e.peerId;t.peerIdHex=t.peerId.toString("hex");t.nodeId=e.nodeId===undefined?new n(l(160),"hex"):typeof e.nodeId==="string"?new n(e.nodeId,"hex"):e.nodeId;t.nodeIdHex=t.nodeId.toString("hex");if(e.dht!==false&&typeof o==="function"){t.dht=new o(u({nodeId:t.nodeId},e.dht));t.dht.listen(e.dhtPort)}s("new webtorrent (peerId %s, nodeId %s)",t.peerIdHex,t.nodeIdHex);if(typeof p==="function"){p(e.blocklist,{headers:{"user-agent":"WebTorrent/"+_+" (http://webtorrent.io)"}},function(e,r){if(e)return t.error("Failed to load blocklist: "+e.message);t.blocked=r;a()})}else r.nextTick(a);function a(){if(t.destroyed)return;t.ready=true;t.emit("ready")}}Object.defineProperty(w.prototype,"ratio",{get:function(){var e=this;var t=e.torrents.reduce(function(e,t){return e+t.uploaded},0);var r=e.torrents.reduce(function(e,t){return e+t.downloaded},0)||1;return t/r}});w.prototype.get=function(e){var t=this;if(e instanceof y)return e;var r;try{r=h(e)}catch(i){}if(!r)return null;if(!r.infoHash)throw new Error("Invalid torrent identifier");for(var n=0,a=t.torrents.length;n<a;n++){var s=t.torrents[n];if(s.infoHash===r.infoHash)return s}return null};w.prototype.add=w.prototype.download=function(e,t,i){

var n=this;if(n.destroyed)throw new Error("client is destroyed");if(typeof t==="function")return n.add(e,null,t);s("add");if(!t)t={};else t=u({},t);t.client=n;var a=n.get(e);function o(){s("on torrent %s",a.infoHash);if(typeof i==="function")i(a)}if(a){if(a.ready)r.nextTick(o);else a.on("ready",o)}else{a=new y(e,t);n.torrents.push(a);a.on("error",function(e){n.emit("error",e,a);n.remove(a)});a.on("listening",function(e){n.emit("listening",e,a)});a.on("ready",function(){o();n.emit("torrent",a)})}return a};w.prototype.seed=function(e,t,r){var i=this;if(i.destroyed)throw new Error("client is destroyed");if(typeof t==="function")return i.seed(e,null,t);s("seed");if(!t)t={};else t=u({},t);if(typeof e==="string")t.path=g.dirname(e);if(!t.createdBy)t.createdBy="WebTorrent/"+_;var n;var o=i.add(undefined,t,function(e){var t=[function(t){e.load(n,t)}];if(i.dht){t.push(function(t){e.on("dhtAnnounce",t)})}d(t,function(t){if(t)return i.emit("error",t);f();i.emit("seed",e)})});a.parseInput(e,t,function(r,s){if(r)return i.emit("error",r);n=s.map(function(e){return e.getStream});a(e,t,function(e,t){if(e)return i.emit("error",e);if(i.destroyed)return;var r=i.get(t);if(r){o.destroy();f();return}else{o._onTorrentId(t)}})});function f(){s("on seed");if(typeof r==="function")r(o)}return o};w.prototype.remove=function(e,t){var r=this;s("remove");var i=r.get(e);if(!i)throw new Error("No torrent with id "+e);r.torrents.splice(r.torrents.indexOf(i),1);i.destroy(t)};w.prototype.address=function(){var e=this;return{address:"0.0.0.0",family:"IPv4",port:e.torrentPort}};w.prototype.destroy=function(e){var t=this;if(t.destroyed)throw new Error("client already destroyed");t.destroyed=true;s("destroy");var r=t.torrents.map(function(e){return function(r){t.remove(e,r)}});if(t.dht)r.push(function(e){t.dht.destroy(e)});d(r,e)}}).call(this,e("_process"),typeof global!=="undefined"?global:typeof self!=="undefined"?self:typeof window!=="undefined"?window:{},e("buffer").Buffer)},{"./lib/torrent":7,"./package.json":184,_process:49,"bittorrent-dht/client":38,buffer:39,"create-torrent":91,debug:121,events:43,hat:127,inherits:129,"load-ip-set":38,"parse-torrent":135,path:48,"run-parallel":155,speedometer:165,xtend:181,"zero-fill":183}]},{},[185])(185)});