btorrent/webtorrent.min.js

(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(o,a){if(!t[o]){if(!e[o]){var f=typeof require=="function"&&require;if(!a&&f)return f(o,!0);if(s)return s(o,!0);var u=new Error("Cannot find module '"+o+"'");throw u.code="MODULE_NOT_FOUND",u}var l=t[o]={exports:{}};e[o][0].call(l.exports,function(t){var r=e[o][1][t];return i(r?r:t)},l,l.exports,n,e,t,r)}return t[o].exports}var s=typeof require=="function"&&require;for(var o=0;o<r.length;o++)i(r[o]);return i}({1:[function(e,t,r){(function(r){var n=e("debug")("webtorrent:append-to");var i=e("mediasource");var s=e("path");var o=e("videostream");var a=[".mp4",".m4v",".m4a"];var f=[".mp4",".m4v",".webm"];var u=[".m4a",".mp3"];var l=f.concat(u);var h=[".wav",".aac",".ogg",".oga"];var c=[".jpg",".jpeg",".png",".gif",".bmp"];var d=[".css",".html",".js",".md",".pdf",".txt"];var p=typeof window!=="undefined"&&window.MediaSource;t.exports=function v(e,t,r){if(!r)r=m;var u;var v=s.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(v)>=0)_();else if(h.indexOf(v)>=0)w();else if(c.indexOf(v)>=0)S();else if(d.indexOf(v)>=0)x();else g(r,new Error('Unsupported file type "'+v+'": Cannot append to DOM'));function _(){if(!p){return g(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 s=f.indexOf(v)>=0?"video":"audio";if(a.indexOf(v)>=0)l();else h();function l(){n("Use `videostream` package for "+e.name);_();u.addEventListener("error",d);u.addEventListener("playing",b);o(e,u)}function h(){n("Use MediaSource API for "+e.name);_();u.addEventListener("error",m);u.addEventListener("playing",b);e.createReadStream().pipe(new i(u,{extname:v}));if(y)u.currentTime=y}function c(){n("Use Blob URL for "+e.name);_();u.addEventListener("error",k);u.addEventListener("playing",b);e.getBlobURL(function(e,t){if(e)return k(e);u.src=t;if(y)u.currentTime=y})}function d(e){n("videostream error: fallback to MediaSource API: %o",e.message||e);u.removeEventListener("error",d);u.removeEventListener("playing",b);h()}function m(e){n("MediaSource API error: fallback to Blob URL: %o",e.message||e);u.removeEventListener("error",m);u.removeEventListener("playing",b);c()}function _(e){if(!u){u=document.createElement(s);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(function(e,t){if(e)return k(e);u.addEventListener("error",k);u.addEventListener("playing",b);u.src=t;u.play()})}function S(){e.getBlobURL(function(n,i){if(n)return k(n);u=document.createElement("img");u.src=i;u.alt=e.name;t.appendChild(u);r(null,u)})}function x(){e.getBlobURL(function(e,n){if(e)return k(e);u=document.createElement("iframe");u.src=n;if(v!==".pdf")u.sandbox="allow-forms allow-scripts";t.appendChild(u);r(null,u)})}function k(t){if(u)u.remove();t.message='Error appending file "'+e.name+'" to DOM: '+t.message;n(t.message);if(r)r(t)}};function m(){}function g(e,t,n){r.nextTick(function(){if(e)e(t,n)})}}).call(this,e("_process"))},{_process:139,debug:72,mediasource:81,path:138,videostream:122}],2:[function(e,t,r){t.exports=o;var n=e("debug")("webtorrent:file-stream");var i=e("inherits");var s=e("stream");i(o,s.Readable);function o(e,t){s.Readable.call(this,t);this.destroyed=false;this._torrent=e._torrent;var r=t&&t.start||0;var n=t&&t.end||e.length-1;var i=e._torrent.pieceLength;this._startPiece=(r+e.offset)/i|0;this._endPiece=(n+e.offset)/i|0;this._piece=this._startPiece;this._offset=r+e.offset-this._startPiece*i;this._missing=n-r+1;this._reading=false;this._notifying=false;this._criticalLength=Math.min(1024*1024/i|0,2)}o.prototype._read=function(){if(this._reading)return;this._reading=true;this._notify()};o.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,i){e._notifying=false;if(e.destroyed)return;if(r)return e.destroy(r);n("read %s (length %s) (err %s)",t,i.length,r&&r.message);if(e._offset){i=i.slice(e._offset);e._offset=0}if(e._missing<i.length){i=i.slice(0,e._missing)}e._missing-=i.length;n("pushing buffer of length %s",i.length);e._reading=false;e.push(i);if(e._missing===0)e.push(null)});e._piece+=1};o.prototype.destroy=function(){if(this.destroyed)return;this.destroyed=true;this._torrent.deselect(this._startPiece,this._endPiece,true)}},{debug:72,inherits:80,stream:157}],3:[function(e,t,r){(function(r,n){t.exports=c;var i=e("./append-to");var s=e("end-of-stream");var o=e("events").EventEmitter;var a=e("./file-stream");var f=e("inherits");var u=e("./mime.json");var l=e("path");var h=e("stream");f(c,o);function c(e,t){o.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 n=r+t.length-1;this._startPiece=r/this._torrent.pieceLength|0;this._endPiece=n/this._torrent.pieceLength|0;if(this.length===0){this.done=true;this.emit("done")}}c.prototype.select=function(){if(this.length===0)return;this._torrent.select(this._startPiece,this._endPiece,false)};c.prototype.deselect=function(){if(this.length===0)return;this._torrent.deselect(this._startPiece,this._endPiece,false)};c.prototype.createReadStream=function(e){var t=this;if(this.length===0){var n=new h.PassThrough;r.nextTick(function(){n.end()});return n}var i=new a(t,e);t._torrent.select(i._startPiece,i._endPiece,true,function(){i._notify()});s(i,function(){t._torrent.deselect(i._startPiece,i._endPiece,true)});return i};c.prototype.getBuffer=function(e){var t=new n(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)};c.prototype.getBlobURL=function(e){var t=this;if(typeof window==="undefined")throw new Error("browser-only method");t.getBuffer(function(r,n){if(r)return e(r);var i=l.extname(t.name).toLowerCase();var s=u[i];var o=s?new window.Blob([n],{type:s}):new window.Blob([n]);var a=window.URL.createObjectURL(o);e(null,a)})};c.prototype.appendTo=function(e,t){if(typeof window==="undefined")throw new Error("browser-only method");if(typeof e==="string")e=document.querySelector(e);i(this,e,t)}}).call(this,e("_process"),e("buffer").Buffer)},{"./append-to":1,"./file-stream":2,"./mime.json":4,_process:139,buffer:130,"end-of-stream":75,events:133,inherits:80,path:138,stream:157}],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=n;function n(e,t){var r=this;r.pieces=[];r.swarm=e;r.numPieces=t;function n(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(n);r.swarm.on("wire",function(e){r.recalculate();n(e)});r.recalculate()}n.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)}})};n.prototype.getRarestPiece=function(e){var t=this;var r=[];var n=Infinity;e=e||function(){return true};for(var i=0;i<t.numPieces;++i){if(!e(i))continue;var s=t.pieces[i];if(s===n){r.push(i)}else if(s<n){r=[i];n=s}}if(r.length>0){return r[Math.random()*r.length|0]}else{return-1}}},{}],6:[function(e,t,r){(function(r,n){t.exports=H;var i=e("addr-to-ip-port");var s=e("bitfield");var o=e("chunk-store-stream/write");var a=e("create-torrent");var f=e("debug")("webtorrent:torrent");var u=e("torrent-discovery");var l=e("events").EventEmitter;var h=e("xtend/mutable");var c=e("fs-chunk-store");var d=e("immediate-chunk-store");var p=e("inherits");var m=e("multistream");var g=e("os");var v=e("run-parallel");var y=e("parse-torrent");var _=e("path");var b=e("path-exists");var w=e("torrent-piece");var S=e("pump");var x=e("random-iterate");var k=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 B=e("./file");var L=e("./rarity-map");var C=e("./server");var R=128*1024;var P=3e4;var F=5e3;var O=3*w.BLOCK_LENGTH;var M=.5;var D=1;var N=1e4;var z=2;var j=typeof b.sync==="function"?_.join(b.sync("/tmp")?"/tmp":g.tmpDir(),"webtorrent"):"/tmp/webtorrent";p(H,l);function H(e,t){l.call(this);if(!f.enabled)this.setMaxListeners(0);f("new torrent");this.client=t.client;this.announce=t.announce;this.urlList=t.urlList;this.path=t.path;this._store=t.store||c;this.strategy=t.strategy||"sequential";this._rechokeNumSlots=t.uploads===false||t.uploads===0?0:+t.uploads||10;this._rechokeOptimisticWire=null;this._rechokeOptimisticTime=0;this._rechokeIntervalId=null;this.ready=false;this.destroyed=false;this.metadata=null;this.store=null;this.numBlockedPeers=0;this.files=null;this.done=false;this._amInterested=false;this.pieces=[];this._selections=[];this._critical=[];this._servers=[];if(e)this._onTorrentId(e)}Object.defineProperty(H.prototype,"timeRemaining",{get:function(){if(this.done)return 0;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 n=this.pieces[t];e+=n.length-n.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(new window.Blob([this.torrentFile],{type:"application/x-bittorrent"}))}});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(j,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(n.WEBTORRENT_ANNOUNCE){e.announce=e.announce.concat(n.WEBTORRENT_ANNOUNCE)}if(e.announce.length===0){e.announce=a.announceList.map(function(e){return e[0]})}if(this.urlList){e.urlList=e.urlList.concat(this.urlList)}U(e.announce);U(e.urlList);h(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));k(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(n){return t._onError(n)}}t._processParsedTorrent(r);t.metadata=t.torrentFile;t.discovery.setTorrent(t);if(t.urlList)t.urlList.forEach(t.addWebSeed.bind(t));t.rarityMap=new L(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 B(t,e)});t._hashes=t.pieces;t.pieces=t.pieces.map(function(e,r){var n=r===t.pieces.length-1?t.lastPieceLength:t.pieceLength;return new w(n)});t._reservations=t.pieces.map(function(){return[]});t.bitfield=new s(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");v(t.pieces.map(function(e,r){return function(e){t.store.get(r,function(n,i){if(n)return e(null);E(i,function(n){if(n===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),N);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)});v(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(i(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;f("add web seed %s",e);t.swarm.addWebSeed(e,t)};H.prototype.select=function(e,t,r,n){var i=this;if(e>t||e<0||t>=i.pieces.length){throw new Error("invalid selection ",e,":",t)}r=Number(r)||0;f("select %s-%s (priority %s)",e,t,r);i._selections.push({from:e,to:t,offset:0,priority:r,notify:n||W});i._selections.sort(function(e,t){return t.priority-e.priority});i._updateSelections()};H.prototype.deselect=function(e,t,r){var n=this;r=Number(r)||0;f("deselect %s-%s (priority %s)",e,t,r);for(var i=0;i<n._selections.length;++i){var s=n._selections[i];if(s.from===e&&s.to===t&&s.priority===r){n._selections.splice(i--,1);break}}n._updateSelections()};H.prototype.critical=function(e,t){var r=this;f("critical %s-%s",e,t);for(var n=e;n<=t;++n){r._critical[n]=true}r._updateSelections()};H.prototype._onWire=function(e,t){var r=this;f("got wire (%s)",t||"Unknown");if(t){var n=i(t);e.remoteAddress=n[0];e.remotePort=n[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 n=r.swarm._peers[e];if(n&&!n.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 n(){if(t.destroyed||e.destroyed)return;if(t.swarm.numQueued>2*(t.swarm.numConns-t.swarm.numPeers)&&e.amInterested){e.destroy()}else{r=setTimeout(n,F);if(r.unref)r.unref()}}var i=0;function s(){if(e.peerPieces.length!==t.pieces.length)return;for(;i<t.pieces.length;++i){if(!e.peerPieces.get(i))return}e.isSeeder=true;e.choke()}e.on("bitfield",function(){s();t._update()});e.on("have",function(){s();t._update()});e.once("interested",function(){e.unchoke()});e.on("close",function(){clearTimeout(r)});e.on("choke",function(){clearTimeout(r);r=setTimeout(n,F);if(r.unref)r.unref()});e.on("unchoke",function(){clearTimeout(r);t._update()});e.on("request",function(r,n,i,s){if(i>R){return e.destroy()}if(t.pieces[r])return;t.store.get(r,{offset:n,length:i},s)});e.bitfield(t.bitfield);e.interested();r=setTimeout(n,F);if(r.unref)r.unref();e.isSeeder=false;s()};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 n=r.offset;while(e.bitfield.get(r.from+r.offset)&&r.from+r.offset<r.to){r.offset++}if(n!==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=x(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 s();var r=q(e,M);if(e.requests.length>=r)return;var n=q(e,D);f(false)||f(true);function i(t,r,n,i){return function(s){return s>=t&&s<=r&&!(s in n)&&e.peerPieces.get(s)&&(!i||i(s))}}function s(){if(e.requests.length)return;var r=t._selections.length;while(r--){var n=t._selections[r];var s;if(t.strategy==="rarest"){var o=n.from+n.offset;var a=n.to;var f=a-o+1;var u={};var l=0;var h=i(o,a,u);while(l<f){s=t.rarityMap.getRarestPiece(h);if(s<0)break;if(t._request(e,s,false))return;u[s]=true;l+=1}}else{for(s=n.to;s>=n.from+n.offset;--s){if(!e.peerPieces.get(s))continue;if(t._request(e,s,false))return}}}}function o(){var r=e.downloadSpeed()||1;if(r>O)return function(){return true};var n=Math.max(1,e.requests.length)*w.BLOCK_LENGTH/r;var i=10;var s=0;return function(e){if(!i||t.bitfield.get(e))return true;var o=t.pieces[e].missing;for(;s<t.swarm.wires.length;s++){var a=t.swarm.wires[s];var f=a.downloadSpeed();if(f<O)continue;if(f<=r)continue;if(!a.peerPieces.get(e))continue;if((o-=f*n)>0)continue;i--;return false}return true}}function a(e){var r=e;for(var n=e;n<t._selections.length&&t._selections[n].priority;n++){r=n}var i=t._selections[e];t._selections[e]=t._selections[r];t._selections[r]=i}function f(r){if(e.requests.length>=n)return true;var s=o();for(var f=0;f<t._selections.length;f++){var u=t._selections[f];var l;if(t.strategy==="rarest"){var h=u.from+u.offset;var c=u.to;var d=c-h+1;var p={};var m=0;var g=i(h,c,p,s);while(m<d){l=t.rarityMap.getRarestPiece(g);if(l<0)break;while(t._request(e,l,t._critical[l]||r)){}if(e.requests.length<n){p[l]=true;m++;continue}if(u.priority)a(f);return true}}else{for(l=u.from+u.offset;l<=u.to;l++){if(!e.peerPieces.get(l)||!s(l))continue;while(t._request(e,l,t._critical[l]||r)){}if(e.requests.length<n)continue;if(u.priority)a(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(o);var r=0;var n=0;for(;n<t.length&&r<e._rechokeNumSlots;++n){t[n].isChoked=false;if(t[n].wire.peerInterested)r+=1}if(!e._rechokeOptimisticWire&&n<t.length&&e._rechokeNumSlots){var i=t.slice(n).filter(function(e){return e.wire.peerInterested});var s=i[G(i.length)];if(s){s.isChoked=false;e._rechokeOptimisticWire=s.wire;e._rechokeOptimisticTime=z}}t.forEach(function(e){if(e.wire.amChoking!==e.isChoked){if(e.isChoked)e.wire.choke();else e.wire.unchoke()}});function o(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 n=e.downloadSpeed();if(n<w.BLOCK_LENGTH)return false;if(!r._reservations[t])return false;var i=r._reservations[t];if(!i){return false}var s=Infinity;var o;var a;for(a=0;a<i.length;a++){var f=i[a];if(!f||f===e)continue;var u=f.downloadSpeed();if(u>=O)continue;if(2*u>n||u>s)continue;o=f;s=u}if(!o)return false;for(a=0;a<i.length;a++){if(i[a]===o)i[a]=null}for(a=0;a<o.requests.length;a++){var l=o.requests[a];if(l.piece!==t)continue;r.pieces[t].cancel(l.offset/w.BLOCK_SIZE|0)}r.emit("hotswap",o,e,t);return true};H.prototype._request=function(e,t,n){var i=this;var s=e.requests.length;if(i.bitfield.get(t))return false;var o=q(e,D);if(s>=o)return false;var a=i.pieces[t];var u=a.reserve();if(u===-1&&n&&i._hotswap(e,t)){u=a.reserve()}if(u===-1)return false;var l=i._reservations[t];if(!l)l=i._reservations[t]=[];var h=l.indexOf(null);if(h===-1)h=l.length;l[h]=e;var c=a.chunkOffset(u);var d=a.chunkLength(u);e.request(t,c,d,function m(r,n){if(!i.ready)return i.once("ready",function(){m(r,n)});if(l[h]===e)l[h]=null;if(a!==i.pieces[t])return p();if(r){f("error getting piece %s (offset: %s length: %s) from %s: %s",t,c,d,e.remoteAddress+":"+e.remotePort,r.message);a.cancel(u);p();return}f("got piece %s (offset: %s length: %s) from %s",t,c,d,e.remoteAddress+":"+e.remotePort);if(!a.set(u,n,e))return p();var s=a.flush();E(s,function(e){if(e===i._hashes[t]){if(!i.pieces[t])return;f("piece verified %s",t);i.pieces[t]=null;i._reservations[t]=null;i.bitfield.set(t,true);i.store.put(t,s);i.swarm.wires.forEach(function(e){e.have(t)});i._checkDone()}else{i.pieces[t]=new w(a.length);i.emit("warning",new Error("Piece "+t+" failed verification"))}p()})});function p(){r.nextTick(function(){i._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 n=new m(e);var i=new o(r.store,r.pieceLength);S(n,i,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":129,_process:139,"addr-to-ip-port":7,bitfield:8,"bittorrent-swarm":9,"chunk-store-stream/write":41,"create-torrent":42,debug:72,events:133,"fs-chunk-store":82,"immediate-chunk-store":79,inherits:80,multistream:83,os:129,"parse-torrent":84,path:138,"path-exists":129,pump:96,"random-iterate":99,"re-emitter":100,"run-parallel":101,"simple-sha1":105,"torrent-discovery":108,"torrent-piece":109,uniq:110,ut_metadata:111,ut_pex:129,"xtend/mutable":124}],7:[function(e,t,r){var n=/^\[?([^\]]+)\]?:(\d+)$/;var i={};var s=0;t.exports=function o(e){if(s===1e5)t.exports.reset();if(!i[e]){var r=n.exec(e);if(!r)throw new Error("invalid addr: "+e);i[e]=[r[1],Number(r[2])];s+=1}return i[e]};t.exports.reset=function a(){i={};s=0}},{}],8:[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 n(e,t){if(!(this instanceof n)){return new n(e,t)}if(arguments.length===0){e=0}this.grow=t&&(isFinite(t.grow)&&i(t.grow)||t.grow)||0;if(typeof e==="number"||e===undefined){e=new r(i(e));if(e.fill&&!e._isBuffer)e.fill(0)}this.buffer=e}function i(e){var t=e>>3;if(e%8!==0)t++;return t}n.prototype.get=function(e){var t=e>>3;return t<this.buffer.length&&!!(this.buffer[t]&128>>e%8)};n.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)}};n.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 n=0;n<this.buffer.length;n++){t[n]=this.buffer[n]}}this.buffer=t}};if(typeof t!=="undefined")t.exports=n}).call(this,e("buffer").Buffer)},{buffer:130}],9:[function(e,t,r){(function(r,n){t.exports=p;var i=e("addr-to-ip-port");var s=e("debug")("bittorrent-swarm");var o=e("events").EventEmitter;var a=e("inherits");var f=e("net");var u=e("speedometer");var l=e("./lib/peer");var h=e("./lib/tcp-pool");var c=55;var d=[1e3,5e3,15e3];a(p,o);function p(e,t,r){var i=this;if(!(i instanceof p))return new p(e,t,r);o.call(i);i.infoHash=typeof e==="string"?e:e.toString("hex");i.infoHashBuffer=new n(i.infoHash,"hex");i.peerId=typeof t==="string"?t:t.toString("hex");i.peerIdBuffer=new n(i.peerId,"hex");if(!r)r={};s("new swarm (i %s p %s)",i.infoHash,i.peerId);i.handshakeOpts=r.handshake;i.maxConns=r.maxConns!==undefined?r.maxConns:c;i.destroyed=false;i.listening=false;i.paused=false;i.server=null;i.wires=[];i._queue=[];i._peers={};i._peersLength=0;i._port=0;i.downloaded=0;i.uploaded=0;i.downloadSpeed=u();i.uploadSpeed=u()}Object.defineProperty(p.prototype,"ratio",{get:function(){var e=this;return e.uploaded/e.downloaded||0}});Object.defineProperty(p.prototype,"numQueued",{get:function(){var e=this;return e._queue.length+(e._peersLength-e.numConns)}});Object.defineProperty(p.prototype,"numConns",{get:function(){var e=this;var t=0;for(var r in e._peers){var n=e._peers[r];if(n&&n.connected)t+=1}return t}});Object.defineProperty(p.prototype,"numPeers",{get:function(){var e=this;return e.wires.length}});p.prototype.addPeer=function(e){var t=this;t._addPeer(e)};p.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)){s("ignoring invalid peer %s (from swarm.addPeer)",e);return null}var r=e&&e.id||e;if(t._peers[r])return;s("addPeer %s",r);var n;if(typeof e==="string"){n=l.createOutgoingTCPPeer(e,t)}else{if(t.paused){e.destroy(new Error("swarm paused"));return null}n=l.createWebRTCPeer(e,t)}t._peers[n.id]=n;t._peersLength+=1;if(typeof e==="string"){t._queue.push(n);t._drain()}return n};p.prototype.addWebSeed=function(e,t){var r=this;if(r.destroyed)return;if(!/^https?:\/\/.+/.test(e)){s("ignoring invalid web seed %s (from swarm.addWebSeed)",e);return}if(r._peers[e])return;s("addWebSeed %s",e);var n=l.createWebPeer(e,t,r);r._peers[n.id]=n;r._peersLength+=1};p.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)"))}s("_addIncomingPeer %s",e.id);t._peers[e.id]=e;t._peersLength+=1};p.prototype.removePeer=function(e){var t=this;var r=t._peers[e];if(!r)return;s("removePeer %s",e);t._peers[e]=null;t._peersLength-=1;r.destroy();t._drain()};p.prototype.pause=function(){var e=this;if(e.destroyed)return;s("pause");e.paused=true};p.prototype.resume=function(){var e=this;if(e.destroyed)return;s("resume");e.paused=false;e._drain()};p.prototype.listen=function(e,t,n){var i=this;if(typeof t==="function"){n=t;t=undefined}if(i.listening)throw new Error("swarm already listening");if(n)i.once("listening",n);if(typeof h==="function"){i._port=e||h.getDefaultListenPort(i.infoHash);i._hostname=t;s("listen %s",e);var o=h.addSwarm(i);i.server=o.server}else{r.nextTick(function(){i._onListening(0)})}};p.prototype._onListening=function(e){var t=this;t._port=e;t.listening=true;t.emit("listening")};p.prototype.address=function(){var e=this;if(!e.listening)return null;return e.server?e.server.address():{port:0,family:"IPv4",address:"127.0.0.1"}};p.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);s("destroy");for(var n in t._peers){t.removePeer(n)}if(typeof h==="function"){h.removeSwarm(t,function(){t.emit("close")})}else{r.nextTick(function(){t.emit("close")})}};p.prototype._drain=function(){var e=this;s("_drain numConns %s maxConns %s",e.numConns,e.maxConns);if(typeof f.connect!=="function"||e.destroyed||e.paused||e.numConns>=e.maxConns){return}s("drain (%s queued, %s/%s peers)",e.numQueued,e.numPeers,e.maxConns);var t=e._queue.shift();if(!t)return;s("tcp connect attempt to %s",t.addr);var r=i(t.addr);var n={host:r[0],port:r[1]};if(e._hostname)n.localAddress=e._hostname;var o=t.conn=f.connect(n);o.once("connect",function(){t.onConnect()});o.once("error",function(e){t.destroy(e)});t.setConnectTimeout();o.on("close",function(){if(e.destroyed)return;if(t.retries>=d.length){s("conn %s closed: will not re-add (max %s attempts)",t.addr,d.length);return}var r=d[t.retries];s("conn %s closed: will re-add to queue in %sms (attempt %s)",t.addr,r,t.retries+1);var n=setTimeout(function i(){var r=e._addPeer(t.addr);if(r)r.retries=t.retries+1;

},r);if(n.unref)n.unref()})};p.prototype._onError=function(e){var t=this;t.emit("error",e);t.destroy()};p.prototype._validAddr=function(e){var t=this;var r=i(e);var n=r[0];var s=r[1];return s>0&&s<65535&&!(n==="127.0.0.1"&&s===t._port)}}).call(this,e("_process"),e("buffer").Buffer)},{"./lib/peer":10,"./lib/tcp-pool":129,_process:139,"addr-to-ip-port":129,buffer:130,debug:72,events:133,inherits:80,net:129,speedometer:107}],10:[function(e,t,r){var n=e("debug")("bittorrent-swarm:peer");var i=e("./webconn");var s=e("bittorrent-protocol");var o=25e3;var a=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 n=new f(e);n.swarm=r;n.conn=new i(e,t);n.onConnect();return n};function f(e){var t=this;t.id=e;n("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;n("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 s;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;if(r.swarm.destroyed)return r.destroy(new Error("swarm already destroyed"));if(e!==r.swarm.infoHash){return r.destroy(new Error("unexpected handshake info hash for this swarm"))}if(t===r.swarm.peerId){return r.destroy(new Error("refusing to handshake with self"))}n("Peer %s got handshake %s",r.id,e);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 i=r.addr;if(!i&&r.conn.remoteAddress){i=r.conn.remoteAddress+":"+r.conn.remotePort}r.swarm.emit("wire",r.wire,i)};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"))},o);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"))},a);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;n("destroy %s (error: %s)",t.id,e&&(e.message||e));clearTimeout(t.connectTimeout);clearTimeout(t.handshakeTimeout);var r=t.swarm;var i=t.conn;var s=t.wire;t.conn=null;t.swarm=null;t.wire=null;if(r&&s){var o=r.wires.indexOf(s);if(o>=0)r.wires.splice(o,1)}if(i)i.destroy();if(s)s.destroy();if(r)r.removePeer(t.id)}},{"./webconn":11,"bittorrent-protocol":12,debug:72}],11:[function(e,t,r){t.exports=u;var n=e("bitfield");var i=e("debug")("bittorrent-swarm:webconn");var s=e("simple-get");var o=e("inherits");var a=e("simple-sha1");var f=e("bittorrent-protocol");o(u,f);function u(e,t){var r=this;f.call(this);r.url=e;r.peerId=a.sync(e);r.parsedTorrent=t;r.setKeepAlive(true);r.on("handshake",function(e,t){r.handshake(e,r.peerId);var i=r.parsedTorrent.pieces.length;var s=new n(i);for(var o=0;o<=i;o++){s.set(o,true)}r.bitfield(s)});r.on("choke",function(){i("choke")});r.on("unchoke",function(){i("unchoke")});r.once("interested",function(){i("interested");r.unchoke()});r.on("uninterested",function(){i("uninterested")});r.on("bitfield",function(){i("bitfield")});r.on("request",function(e,t,n,s){i("request pieceIndex=%d offset=%d length=%d",e,t,n);r.httpRequest(e,t,n,s)})}u.prototype.httpRequest=function(e,t,r,n){var o=this;var a=e*o.parsedTorrent.pieceLength;var f=a+t;var u=f+r-1;i("Requesting pieceIndex=%d offset=%d length=%d start=%d end=%d",e,t,r,f,u);var l={url:o.url,method:"GET",headers:{"user-agent":"WebTorrent (http://webtorrent.io)",range:"bytes="+f+"-"+u}};s.concat(l,function(e,t,r){if(e)return n(e);if(r.statusCode<200||r.statusCode>=300){return n(new Error("Unexpected HTTP status code "+r.statusCode))}i("Got data of length %d",t.length);n(null,t)})}},{bitfield:8,"bittorrent-protocol":12,debug:72,inherits:80,"simple-get":102,"simple-sha1":105}],12:[function(e,t,r){(function(r){t.exports=w;var n=e("bencode");var i=e("bitfield");var s=e("debug")("bittorrent-protocol");var o=e("xtend");var a=e("hat");var f=e("inherits");var u=e("speedometer");var l=e("stream");var h=4e5;var c=new r("BitTorrent protocol");var d=new r([0,0,0,0]);var p=new r([0,0,0,1,0]);var m=new r([0,0,0,1,1]);var g=new r([0,0,0,1,2]);var v=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,n){this.piece=e;this.offset=t;this.length=r;this.callback=n}f(w,l.Duplex);function w(){if(!(this instanceof w))return new w;l.Duplex.call(this);this._debugId=a(32);this._debug("new wire");this.peerId=null;this.peerIdBuffer=null;this.amChoking=true;this.amInterested=false;this.peerChoking=true;this.peerInterested=false;this.peerPieces=new i(0,{grow:h});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 n=new e(this);function i(){}if(typeof n.onHandshake!=="function"){n.onHandshake=i}if(typeof n.onExtendedHandshake!=="function"){n.onExtendedHandshake=i}if(typeof n.onMessage!=="function"){n.onMessage=i}this.extendedMapping[r]=t;this._ext[t]=n;this[t]=n;this._nextExt+=1};w.prototype.keepAlive=function(){this._debug("keep-alive");this._push(d)};w.prototype.handshake=function(e,t,n){var i,s;if(typeof e==="string"){i=new r(e,"hex")}else{i=e;e=i.toString("hex")}if(typeof t==="string"){s=new r(t,"hex")}else{s=t;t=s.toString("hex")}if(i.length!==20||s.length!==20){throw new Error("infoHash and peerId MUST have length 20")}this._debug("handshake i=%s p=%s exts=%o",e,t,n);var o=new r(y);o[5]|=16;if(n&&n.dht)o[7]|=1;this._push(r.concat([c,o,i,s]));this._handshakeSent=true;if(this.peerExtensions.extended){this._sendExtendedHandshake()}};w.prototype._sendExtendedHandshake=function(){var e=o(this.extendedHandshake);e.m={};for(var t in this.extendedMapping){var r=this.extendedMapping[t];e.m[r]=Number(t)}this.extended(0,n.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(p)};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(g)};w.prototype.uninterested=function(){if(!this.amInterested)return;this.amInterested=false;this._debug("uninterested");this._push(v)};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,n){if(!n)n=function(){};if(this._finished)return n(new Error("wire is closed"));if(this.peerChoking)return n(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,n));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(S(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 i=new r([e]);var s=r.isBuffer(t)?t:n.encode(t);this._message(20,[],r.concat([i,s]))}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){var n=e.toString("hex");var i=t.toString("hex");this._debug("got handshake i=%s p=%s exts=%o",n,i,r);this.peerId=i;this.peerIdBuffer=t;this.peerExtensions=r;this.emit("handshake",n,i,r);var s;for(s in this._ext){this._ext[s].onHandshake(n,i,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 i(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 n=function(n,s){if(i!==S(this.peerRequests,e,t,r))return;if(n)return;this.piece(e,t,s)}.bind(this);var i=new b(e,t,r,n);this.peerRequests.push(i);this.emit("request",e,t,r,n)};w.prototype._onPiece=function(e,t,r){this._debug("got piece index=%d offset=%d",e,t);this._callback(S(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);S(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=n.decode(t)}catch(i){this._debug("ignoring invalid extended handshake: %s",i.message||i)}if(!r)return;this.peerExtendedHandshake=r;var s;if(typeof r.m==="object"){for(s in r.m){this.peerExtendedMapping[s]=Number(r.m[s].toString())}}for(s in this._ext){if(this.peerExtendedMapping[s]){this._ext[s].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,n){this._bufferSize+=e.length;this._buffer.push(e);while(this._bufferSize>=this._parserSize){var i=this._buffer.length===1?this._buffer[0]:r.concat(this._buffer);this._bufferSize-=this._parserSize;this._buffer=this._bufferSize?[i.slice(this._parserSize)]:[];this._parser(i.slice(0,this._parserSize))}n(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,n){var i=n?n.length:0;var s=new r(5+4*t.length);s.writeUInt32BE(s.length+i-4,0);s[4]=e;for(var o=0;o<t.length;o++){s.writeUInt32BE(t[o],5+4*o)}this._push(s);if(n)this._push(n)};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];s.apply(null,e)};function S(e,t,r,n){for(var i=0;i<e.length;i++){var s=e[i];if(s.piece!==t||s.offset!==r||s.length!==n)continue;if(i===0)e.shift();else e.splice(i,1);return s}return null}}).call(this,e("buffer").Buffer)},{bencode:13,bitfield:8,buffer:130,debug:72,hat:78,inherits:80,speedometer:107,stream:157,xtend:123}],13:[function(e,t,r){t.exports={encode:e("./lib/encode"),decode:e("./lib/decode")}},{"./lib/decode":14,"./lib/encode":16}],14:[function(e,t,r){(function(r){var n=e("./dict");function i(e,t){i.position=0;i.encoding=t||null;i.data=!r.isBuffer(e)?new r(e):e;return i.next()}i.position=0;i.data=null;i.encoding=null;i.next=function(){switch(i.data[i.position]){case 100:return i.dictionary();break;case 108:return i.list();break;case 105:return i.integer();break;default:return i.bytes();break}};i.find=function(e){var t=i.position;var r=i.data.length;var n=i.data;while(t<r){if(n[t]===e)return t;t++}throw new Error('Invalid data: Missing delimiter "'+String.fromCharCode(e)+'" [0x'+e.toString(16)+"]")};i.dictionary=function(){i.position++;var e=new n;while(i.data[i.position]!==101){e.binarySet(i.bytes(),i.next())}i.position++;return e};i.list=function(){i.position++;var e=[];while(i.data[i.position]!==101){e.push(i.next())}i.position++;return e};i.integer=function(){var e=i.find(101);var t=i.data.toString("ascii",i.position+1,e);i.position+=e+1-i.position;return parseInt(t,10)};i.bytes=function(){var e=i.find(58);var t=parseInt(i.data.toString("ascii",i.position,e),10);var r=++e+t;i.position=r;return i.encoding?i.data.toString(i.encoding,e,r):i.data.slice(e,r)};t.exports=i}).call(this,e("buffer").Buffer)},{"./dict":15,buffer:130}],15:[function(e,t,r){var n=t.exports=function i(){Object.defineProperty(this,"_keys",{enumerable:false,value:[]})};n.prototype.binaryKeys=function s(){return this._keys.slice()};n.prototype.binarySet=function o(e,t){this._keys.push(e);this[e]=t}},{}],16:[function(e,t,r){(function(e){function r(t){var n=[];r._encode(n,t);return e.concat(n)}r._floatConversionDetected=false;r._encode=function(t,n){if(e.isBuffer(n)){t.push(new e(n.length+":"));t.push(n);return}switch(typeof n){case"string":r.bytes(t,n);break;case"number":r.number(t,n);break;case"object":n.constructor===Array?r.list(t,n):r.dict(t,n);break}};var n=new e("e"),i=new e("d"),s=new e("l");r.bytes=function(t,r){t.push(new e(e.byteLength(r)+":"+r))};r.number=function(t,n){var i=2147483648;var s=n/i<<0;var o=n%i<<0;var a=s*i+o;t.push(new e("i"+a+"e"));if(a!==n&&!r._floatConversionDetected){r._floatConversionDetected=true;console.warn('WARNING: Possible data corruption detected with value "'+n+'":','Bencoding only defines support for integers, value was converted to "'+a+'"');console.trace()}};r.dict=function(e,t){e.push(i);var s=0;var o;var a=Object.keys(t).sort();var f=a.length;for(;s<f;s++){o=a[s];r.bytes(e,o);r._encode(e,t[o])}e.push(n)};r.list=function(e,t){var i=0,o=1;var a=t.length;e.push(s);for(;i<a;i++){r._encode(e,t[i])}e.push(n)};t.exports=r}).call(this,e("buffer").Buffer)},{buffer:130}],17:[function(e,t,r){(function(r,n){t.exports=m;var i=e("events").EventEmitter;var s=e("debug")("bittorrent-tracker");var o=e("inherits");var a=e("once");var f=e("run-parallel");var u=e("uniq");var l=e("url");var h=e("./lib/common");var c=e("./lib/client/http-tracker");var d=e("./lib/client/udp-tracker");var p=e("./lib/client/websocket-tracker");o(m,i);function m(e,t,o,a){var f=this;if(!(f instanceof m))return new m(e,t,o,a);i.call(f);if(!a)a={};f.peerId=typeof e==="string"?e:e.toString("hex");f.peerIdBuffer=new n(f.peerId,"hex");f._peerIdBinary=f.peerIdBuffer.toString("binary");f.infoHash=typeof o.infoHash==="string"?o.infoHash:o.infoHash.toString("hex");f.infoHashBuffer=new n(f.infoHash,"hex");f._infoHashBinary=f.infoHashBuffer.toString("binary");f.torrentLength=o.length;f.destroyed=false;f._port=t;f._rtcConfig=a.rtcConfig;f._wrtc=a.wrtc;s("new client %s",f.infoHash);var h=!!f._wrtc||typeof window!=="undefined";var g=typeof o.announce==="string"?[o.announce]:o.announce==null?[]:o.announce;g=g.map(function(e){e=e.toString();if(e[e.length-1]==="/"){e=e.substring(0,e.length-1)}return e});g=u(g);f._trackers=g.map(function(e){var t=l.parse(e).protocol;if((t==="http:"||t==="https:")&&typeof c==="function"){return new c(f,e)}else if(t==="udp:"&&typeof d==="function"){return new d(f,e)}else if((t==="ws:"||t==="wss:")&&h){return new p(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=a(r);var i=new n("01234567890123456789");var s=6881;var o={infoHash:Array.isArray(t)?t[0]:t,announce:[e]};var f=new m(i,s,o);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 n(e,"hex")}):new n(t,"hex");f.scrape({infoHash:t})};m.prototype.start=function(e){var t=this;s("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;s("send `stop`");e=t._defaultAnnounceOpts(e);e.event="stopped";t._announce(e)};m.prototype.complete=function(e){var t=this;s("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;s("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;s("send `scrape`");if(!e)e={};t._trackers.forEach(function(t){t.scrape(e)})};m.prototype.setInterval=function(e){var t=this;s("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;s("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=h.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":129,"./lib/client/udp-tracker":129,"./lib/client/websocket-tracker":19,"./lib/common":20,_process:139,buffer:130,debug:72,events:133,inherits:80,once:22,"run-parallel":101,uniq:110,url:164}],18:[function(e,t,r){t.exports=s;var n=e("events").EventEmitter;var i=e("inherits");i(s,n);function s(e,t){var r=this;n.call(r);r.client=e;r.announceUrl=t;r.interval=null;r.destroyed=false}s.prototype.setInterval=function(e){var t=this;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:133,inherits:80}],19:[function(e,t,r){t.exports=p;var n=e("debug")("bittorrent-tracker:websocket-tracker");var i=e("hat");var s=e("inherits");var o=e("simple-peer");var a=e("simple-websocket");var f=e("../common");var u=e("./tracker");var l={};var h=30*1e3;var c=5*1e3;var d=50*1e3;s(p,u);function p(e,t,r){var i=this;u.call(i,e,t);n("new websocket tracker %s",t);i.peers={};i.socket=null;i.reconnecting=false;i._openSocket()}p.prototype.DEFAULT_ANNOUNCE_INTERVAL=30*1e3;p.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(n){var i={numwant:r,uploaded:e.uploaded||0,downloaded:e.downloaded,event:e.event,info_hash:t.client._infoHashBinary,peer_id:t.client._peerIdBinary,offers:n};if(t._trackerId)i.trackerid=t._trackerId;t._send(i)})};p.prototype.scrape=function(e){var t=this;if(t.destroyed||t.reconnecting)return;t._onSocketError(new Error("scrape not supported "+t.announceUrl))};p.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",m);try{t.socket.destroy(e)}catch(r){if(e)e()}t.socket=null};p.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 a(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)};p.prototype._onSocketConnect=function(){var e=this;if(e.destroyed)return;if(e.reconnecting){e.reconnecting=false;e.announce(e.client._defaultAnnounceOpts())}};p.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){n("ignoring websocket data from %s for %s (looking for %s: reused socket)",t.announceUrl,f.binaryToHex(e.info_hash),t.client.infoHash);return}if(e.peer_id&&e.peer_id===t.client._peerIdBinary){return}n("received %s from %s for %s",JSON.stringify(e),t.announceUrl,t.client.infoHash);var r=e["failure reason"];if(r)return t.client.emit("warning",new Error(r));var i=e["warning message"];if(i)t.client.emit("warning",new Error(i));var s=e.interval||e["min interval"];if(s)t.setInterval(s*1e3);var a=e["tracker id"];if(a){t._trackerId=a}if(e.complete){t.client.emit("update",{announce:t.announceUrl,complete:e.complete,incomplete:e.incomplete})}var u;if(e.offer&&e.peer_id){n("creating peer (from remote offer)");u=new o({trickle:false,config:t.client._rtcConfig,wrtc:t.client._wrtc});u.id=f.binaryToHex(e.peer_id);u.once("signal",function(r){var n={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)n.trackerid=t._trackerId;t._send(n)});u.signal(e.offer);t.client.emit("peer",u)}if(e.answer&&e.peer_id){var l=f.binaryToHex(e.offer_id);u=t.peers[l];if(u){u.id=f.binaryToHex(e.peer_id);u.signal(e.answer);t.client.emit("peer",u);clearTimeout(u.trackerTimeout);u.trackerTimeout=null;t.peers[l]=null}else{n("got unexpected answer: "+JSON.stringify(e.answer))}}};p.prototype._onSocketClose=function(){var e=this;if(e.destroyed)return;e.destroy();e._startReconnectTimer()};p.prototype._onSocketError=function(e){var t=this;if(t.destroyed)return;t.destroy();t.client.emit("warning",e);t._startReconnectTimer()};p.prototype._startReconnectTimer=function(){var e=this;var t=Math.floor(Math.random()*h)+c;e.reconnecting=true;var r=setTimeout(function(){e._openSocket()},t);if(r.unref)r.unref();n("reconnecting socket in %s ms",t)};p.prototype._send=function(e){var t=this;if(t.destroyed)return;var r=JSON.stringify(e);n("send %s",r);t.socket.send(r)};p.prototype._generateOffers=function(e,t){var r=this;var s=[];n("generating %s offers",e);for(var a=0;a<e;++a){u()}function u(){var e=i(160);n("creating peer (from _generateOffers)");var t=r.peers[e]=new o({initiator:true,trickle:false,config:r.client._rtcConfig,wrtc:r.client._wrtc});t.once("signal",function(t){s.push({offer:t,offer_id:f.hexToBinary(e)});l()});t.trackerTimeout=setTimeout(function(){n("tracker timeout: destroying peer");t.trackerTimeout=null;r.peers[e]=null;t.destroy()},d)}function l(){if(s.length===e){n("generated %s offers",e);t(s)}}};function m(){}},{"../common":20,"./tracker":18,debug:72,hat:78,inherits:80,"simple-peer":23,"simple-websocket":27}],20:[function(e,t,r){(function(t){var n=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 i=e("./common-node");n(r,i)}).call(this,e("buffer").Buffer)},{"./common-node":129,buffer:130,"xtend/mutable":124}],21:[function(e,t,r){t.exports=n;function n(e,t){if(e&&t)return n(e)(t);if(typeof e!=="function")throw new TypeError("need wrapper function");Object.keys(e).forEach(function(t){r[t]=e[t]});return r;function r(){var t=new Array(arguments.length);for(var r=0;r<t.length;r++){t[r]=arguments[r]}var n=e.apply(this,t);var i=t[t.length-1];if(typeof n==="function"&&n!==i){Object.keys(i).forEach(function(e){n[e]=i[e]})}return n}}},{}],22:[function(e,t,r){var n=e("wrappy");t.exports=n(i);i.proto=i(function(){Object.defineProperty(Function.prototype,"once",{value:function(){return i(this)},configurable:true})});function i(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:21}],23:[function(e,t,r){(function(r){t.exports=h;var n=e("debug")("simple-peer");var i=e("get-browser-rtc");var s=e("hat");var o=e("inherits");var a=e("is-typedarray");var f=e("once");var u=e("stream");var l=e("typedarray-to-buffer");o(h,u.Duplex);function h(e){var t=this;if(!(t instanceof h))return new h(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||h.channelConfig;t.channelName=e.channelName||s(160);if(!e.initiator)t.channelName=null;t.config=e.config||h.config;t.constraints=e.constraints||h.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||i();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)})}})}h.WEBRTC_SUPPORT=!!i();h.config={iceServers:[{url:"stun:23.21.150.121",urls:"stun:23.21.150.121"}]};h.constraints={};h.channelConfig={};Object.defineProperty(h.prototype,"bufferSize",{get:function(){var e=this;return e._channel&&e._channel.bufferedAmount||0}});h.prototype.address=function(){var e=this;return{port:e.localPort,family:"IPv4",address:e.localAddress}};h.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 n(e){try{t._pc.addIceCandidate(new t._wrtc.RTCIceCandidate(e),c,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(n);t._pendingCandidates=[]},t._onError.bind(t))}if(e.candidate){if(t._pc.remoteDescription)n(e.candidate);else t._pendingCandidates.push(e.candidate)}if(!e.sdp&&!e.candidate){t._destroy(new Error("signal() called with invalid signal data"))}};h.prototype.send=function(e){var t=this;if(!a.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)&&!a.strict(e)){e=new Uint8Array(e)}var n=e.length||e.byteLength||e.size;t._channel.send(e);t._debug("write: %d bytes",n)};h.prototype.destroy=function(e){var t=this;t._destroy(null,e)};h.prototype._destroy=function(e,t){var r=this;if(r.destroyed)return;if(t)r.once("close",t);r._debug("destroy (error: %s)",e&&e.message);r.readable=r.writable=false;if(!r._readableState.ended)r.push(null);if(!r._writableState.finished)r.end();r.destroyed=true;r.connected=false;r._pcReady=false;r._channelReady=false;r._chunk=null;r._cb=null;clearInterval(r._interval);clearTimeout(r._reconnectTimeout);if(r._pc){try{r._pc.close()}catch(e){}r._pc.oniceconnectionstatechange=null;r._pc.onsignalingstatechange=null;r._pc.onicecandidate=null}if(r._channel){try{r._channel.close()}catch(e){}r._channel.onmessage=null;r._channel.onopen=null;r._channel.onclose=null}r._pc=null;r._channel=null;if(e)r.emit("error",e);r.emit("close")};h.prototype._setupData=function(e){var t=this;t._channel=e.channel;t.channelName=t._channel.label;t._channel.binaryType="arraybuffer";t._channel.onmessage=t._onChannelMessage.bind(t);t._channel.onopen=t._onChannelOpen.bind(t);t._channel.onclose=t._onChannelClose.bind(t)};h.prototype._read=function(){};h.prototype._write=function(e,t,r){var n=this;if(n.destroyed)return r(new Error("cannot write after peer is destroyed"));if(n.connected){try{n.send(e)}catch(i){return n._onError(i)}if(n._channel.bufferedAmount>n._maxBufferedAmount){n._debug("start backpressure: bufferedAmount %d",n._channel.bufferedAmount);n._cb=r}else{r(null)}}else{n._debug("write before connect");n._chunk=e;n._cb=r}};h.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,c,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)};h.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,c,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.answerConstraints)};h.prototype._onIceConnectionStateChange=function(){var e=this;if(e.destroyed)return;var t=e._pc.iceGatheringState;var r=e._pc.iceConnectionState;e._debug("iceConnectionStateChange %s %s",t,r);e.emit("iceConnectionStateChange",t,r);if(r==="connected"||r==="completed"){clearTimeout(e._reconnectTimeout);e._pcReady=true;e._maybeReady()}if(r==="disconnected"){if(e.reconnectTimer){clearTimeout(e._reconnectTimeout);e._reconnectTimeout=setTimeout(function(){e._destroy()},e.reconnectTimer)}else{e._destroy()}}if(r==="closed"){e._destroy()}};h.prototype._maybeReady=function(){var e=this;e._debug("maybeReady pc %s channel %s",e._pcReady,e._channelReady);if(e.connected||e._connecting||!e._pcReady||!e._channelReady)return;e._connecting=true;if(!e._pc.getStats){t([])}else if(typeof window!=="undefined"&&!!window.mozRTCPeerConnection){e._pc.getStats(null,function(e){var r=[];e.forEach(function(e){r.push(e)});t(r)},e._onError.bind(e))}else{e._pc.getStats(function(e){var r=[];e.result().forEach(function(e){var t={};e.names().forEach(function(r){t[r]=e.stat(r)});t.id=e.id;t.type=e.type;t.timestamp=e.timestamp;r.push(t)});t(r)})}function t(t){t.forEach(function(t){if(t.type==="remotecandidate"){e.remoteAddress=t.ipAddress;e.remotePort=Number(t.portNumber);e.remoteFamily="IPv4";e._debug("connect remote: %s:%s (%s)",e.remoteAddress,e.remotePort,e.remoteFamily)}else if(t.type==="localcandidate"&&t.candidateType==="host"){e.localAddress=t.ipAddress;e.localPort=Number(t.portNumber);e._debug("connect local: %s:%s",e.localAddress,e.localPort)}});e._connecting=false;e.connected=true;if(e._chunk){try{e.send(e._chunk)}catch(r){return e._onError(r)}e._chunk=null;e._debug('sent chunk from "write before connect"');var n=e._cb;e._cb=null;n(null)}e._interval=setInterval(function(){if(!e._cb||!e._channel||e._channel.bufferedAmount>e._maxBufferedAmount)return;e._debug("ending backpressure: bufferedAmount %d",e._channel.bufferedAmount);var t=e._cb;e._cb=null;t(null)},150);if(e._interval.unref)e._interval.unref();e._debug("connect");e.emit("connect")}};h.prototype._onSignalingStateChange=function(){var e=this;if(e.destroyed)return;e._debug("signalingStateChange %s",e._pc.signalingState);e.emit("signalingStateChange",e._pc.signalingState)};h.prototype._onIceCandidate=function(e){var t=this;if(t.destroyed)return;if(e.candidate&&t.trickle){t.emit("signal",{candidate:{candidate:e.candidate.candidate,sdpMLineIndex:e.candidate.sdpMLineIndex,sdpMid:e.candidate.sdpMid}})}else if(!e.candidate){t._iceComplete=true;t.emit("_iceComplete")}};h.prototype._onChannelMessage=function(e){var t=this;if(t.destroyed)return;var r=e.data;t._debug("read: %d bytes",r.byteLength||r.length);if(r instanceof ArrayBuffer){r=l(new Uint8Array(r));t.push(r)}else{try{r=JSON.parse(r)}catch(n){}t.emit("data",r)}};h.prototype._onChannelOpen=function(){var e=this;if(e.connected||e.destroyed)return;e._debug("on channel open");e._channelReady=true;e._maybeReady()};h.prototype._onChannelClose=function(){var e=this;if(e.destroyed)return;e._debug("on channel close");e._destroy()};h.prototype._onAddStream=function(e){var t=this;if(t.destroyed)return;t._debug("on add stream");t.emit("stream",e.stream)};h.prototype._onError=function(e){var t=this;if(t.destroyed)return;t._debug("error %s",e.message||e);t._destroy(e)};h.prototype._debug=function(){var e=this;var t=[].slice.call(arguments);var r=e.channelName&&e.channelName.substring(0,7);t[0]="["+r+"] "+t[0];n.apply(null,t)};function c(){}}).call(this,{isBuffer:e("../../../../../../../../usr/local/lib/node_modules/browserify/node_modules/insert-module-globals/node_modules/is-buffer/index.js")})},{"../../../../../../../../usr/local/lib/node_modules/browserify/node_modules/insert-module-globals/node_modules/is-buffer/index.js":136,debug:72,"get-browser-rtc":24,hat:78,inherits:80,"is-typedarray":25,once:22,stream:157,"typedarray-to-buffer":26}],24:[function(e,t,r){t.exports=function n(){if(typeof window==="undefined")return null;var e={RTCPeerConnection:window.mozRTCPeerConnection||window.RTCPeerConnection||window.webkitRTCPeerConnection,RTCSessionDescription:window.mozRTCSessionDescription||window.RTCSessionDescription||window.webkitRTCSessionDescription,RTCIceCandidate:window.mozRTCIceCandidate||window.RTCIceCandidate||window.webkitRTCIceCandidate};if(!e.RTCPeerConnection)return null;return e}},{}],25:[function(e,t,r){t.exports=s;s.strict=o;s.loose=a;var n=Object.prototype.toString;var i={"[object Int8Array]":true,"[object Int16Array]":true,"[object Int32Array]":true,"[object Uint8Array]":true,"[object Uint8ClampedArray]":true,"[object Uint16Array]":true,"[object Uint32Array]":true,"[object Float32Array]":true,"[object Float64Array]":true};function s(e){return o(e)||a(e)}function o(e){return e instanceof Int8Array||e instanceof Int16Array||e instanceof Int32Array||e instanceof Uint8Array||e instanceof Uint8ClampedArray||e instanceof Uint16Array||e instanceof Uint32Array||e instanceof Float32Array||e instanceof Float64Array}function a(e){return i[n.call(e)]}},{}],26:[function(e,t,r){(function(r){var n=e("is-typedarray").strict;t.exports=function(e){var t=r.TYPED_ARRAY_SUPPORT?r._augment:function(e){return new r(e)};if(e instanceof Uint8Array){return t(e)}else if(e instanceof ArrayBuffer){return t(new Uint8Array(e))}else if(n(e)){return t(new Uint8Array(e.buffer,e.byteOffset,e.byteLength))}else{return new r(e)}}}).call(this,e("buffer").Buffer)},{buffer:130,"is-typedarray":25}],27:[function(e,t,r){(function(r){t.exports=l;var n=e("debug")("simple-websocket");var i=e("inherits");var s=e("is-typedarray");var o=e("stream");var a=e("typedarray-to-buffer");var f=e("ws");var u=typeof window!=="undefined"?window.WebSocket:f;i(l,o.Duplex);function l(e,t){var r=this;if(!(r instanceof l))return new l(e,t);if(!t)t={};n("new websocket: %s %o",e,t);t.allowHalfOpen=false;if(t.highWaterMark==null)t.highWaterMark=1024*1024;o.Duplex.call(r,t);r.url=e;r.connected=false;r.destroyed=false;r._maxBufferedAmount=t.highWaterMark;r._chunk=null;r._cb=null;r._interval=null;r._ws=new u(r.url);r._ws.binaryType="arraybuffer";r._ws.onopen=r._onOpen.bind(r);r._ws.onmessage=r._onMessage.bind(r);r._ws.onclose=r._onClose.bind(r);r._ws.onerror=function(){r._onError(new Error("connection error to "+r.url))};r.on("finish",function(){if(r.connected){setTimeout(function(){r._destroy()},100)}else{r.once("connect",function(){setTimeout(function(){r._destroy()},100)})}})}l.WEBSOCKET_SUPPORT=!!u;l.prototype.send=function(e){var t=this;if(!s.strict(e)&&!(e instanceof ArrayBuffer)&&!r.isBuffer(e)&&typeof e!=="string"&&(typeof Blob==="undefined"||!(e instanceof Blob))){e=JSON.stringify(e)}var i=e.length||e.byteLength||e.size;t._ws.send(e);n("write: %d bytes",i)};l.prototype.destroy=function(e){var 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t!=="undefined"){t.exports=n}else if(typeof window!=="undefined"){window.Rusha=n}if(typeof FileReaderSync!=="undefined"){var i=new FileReaderSync,s=new n(4*1024*1024);self.onmessage=function a(e){var t,r=e.data.data;try{t=s.digest(r);self.postMessage({id:e.data.id,hash:t})}catch(n){self.postMessage({id:e.data.id,error:n.name})}}}})()}).call(this,typeof global!=="undefined"?global:typeof self!=="undefined"?self:typeof window!=="undefined"?window:{})},{}],107:[function(e,t,r){var n=1;var i=65535;var s=4;var o=function(){n=n+1&i};var a=setInterval(o,1e3/s|0);if(a.unref)a.unref();t.exports=function(e){var t=s*(e||5);var r=[0];var o=1;var a=n-1&i;return function(e){var f=n-a&i;if(f>t)f=t;a=n;while(f--){if(o===t)o=0;r[o]=r[o===0?t-1:o-1];o++}if(e)r[o-1]+=e;var u=r[o-1];var l=r.length<t?0:r[o===t?0:o];return r.length<s?u:(u-l)*s/r.length}}},{}],108:[function(e,t,r){(function(r,n){t.exports=c;var i=e("debug")("torrent-discovery");var s=e("bittorrent-dht/client");var 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t=e.torrent?a({announce:[]},e.torrent):{infoHash:e.infoHash,announce:[]};if(e.announce)t.announce=t.announce.concat(e.announce);var r={rtcConfig:e.rtcConfig,wrtc:e.wrtc};e.tracker=new h(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()};c.prototype._dhtLookupAndAnnounce=function(){var e=this;if(e._performedDHTLookup)return;e._performedDHTLookup=true;i("dht lookup");e.dht.lookup(e.infoHash,function(t){if(t||!e.port)return;i("dht announce");e.dht.announce(e.infoHash,e.port,function(){i("dht announce complete");e.emit("dhtAnnounce")})})}}).call(this,e("_process"),e("buffer").Buffer)},{_process:139,"bittorrent-dht/client":129,"bittorrent-tracker/client":17,buffer:130,debug:72,events:133,inherits:80,"re-emitter":100,"run-parallel":101,"xtend/mutable":124}],109:[function(e,t,r){(function(e){t.exports=n;var r=1<<14;function n(e){if(!(this instanceof n))return new n(e);this.length=e;this.missing=e;this.sources=null;this._chunks=Math.ceil(e/r);this._remainder=e%r||r;this._buffered=0;this._buffer=null;this._cancellations=null;this._reservations=0;this._flushed=false}n.BLOCK_LENGTH=r;n.prototype.chunkLength=function(e){return e===this._chunks-1?this._remainder:r};n.prototype.chunkOffset=function(e){return e*r};n.prototype.reserve=function(){if(!this.init())return-1;if(this._cancellations.length)return this._cancellations.pop();if(this._reservations<this._chunks)return this._reservations++;return-1};n.prototype.cancel=function(e){if(!this.init())return;this._cancellations.push(e)};n.prototype.get=function(e){if(!this.init())return null;return this._buffer[e]};n.prototype.set=function(e,t,r){if(!this.init())return false;if(!this._buffer[e]){this._buffered++;this._buffer[e]=t;this.missing-=t.length;if(this.sources.indexOf(r)===-1){this.sources.push(r)}}return 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s=e("events").EventEmitter;var o=e("inherits");var a=e("simple-sha1");var f=1e7;var u=1e3;var l=16*1024;t.exports=function(e){o(t,s);function t(t){s.call(this);this._wire=t;this._metadataComplete=false;this._metadataSize=null;this._remainingRejects=null;this._fetching=false;this._bitfield=new i(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};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 i=e.toString();var s=i.indexOf("ee")+2;t=n.decode(i.substring(0,s));r=e.slice(s)}catch(o){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=n.decode(e).info;if(t){e=n.encode(t)}}catch(r){}if(this._infoHash&&this._infoHash!==a.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",n.encode({info:n.decode(this.metadata)}));return true};t.prototype._send=function(e,t){var i=n.encode(e);if(r.isBuffer(t)){i=r.concat([i,t])}this._wire.extended("ut_metadata",i)};t.prototype._request=function(e){this._send({msg_type:0,piece:e})};t.prototype._data=function(e,t,r){var n={msg_type:1,piece:e};if(typeof r==="number"){n.total_size=r}this._send(n,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 n=this.metadata.slice(t,r);this._data(e,n,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 i(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:112,bitfield:8,buffer:130,events:133,inherits:80,"simple-sha1":105}],112:[function(e,t,r){arguments[4][13][0].apply(r,arguments)},{"./lib/decode":113,"./lib/encode":115,dup:13}],113:[function(e,t,r){arguments[4][14][0].apply(r,arguments)},{"./dict":114,buffer:130,dup:14}],114:[function(e,t,r){arguments[4][15][0].apply(r,arguments)},{dup:15}],115:[function(e,t,r){arguments[4][16][0].apply(r,arguments)},{buffer:130,dup:16}],116:[function(e,t,r){var 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Int8Array(e);n.memcpy(t.buffer,0,this.buffer,this.byteOffset+this.position,e*t.BYTES_PER_ELEMENT);this.position+=t.byteLength;return t};n.prototype.readUint32Array=function(e,t){e=e==null?this.byteLength-this.position/4:e;var r=new Uint32Array(e);n.memcpy(r.buffer,0,this.buffer,this.byteOffset+this.position,e*r.BYTES_PER_ELEMENT);n.arrayToNative(r,t==null?this.endianness:t);this.position+=r.byteLength;return r};n.prototype.readUint16Array=function(e,t){e=e==null?this.byteLength-this.position/2:e;var r=new Uint16Array(e);n.memcpy(r.buffer,0,this.buffer,this.byteOffset+this.position,e*r.BYTES_PER_ELEMENT);n.arrayToNative(r,t==null?this.endianness:t);this.position+=r.byteLength;return r};n.prototype.readUint8Array=function(e){e=e==null?this.byteLength-this.position:e;var t=new Uint8Array(e);n.memcpy(t.buffer,0,this.buffer,this.byteOffset+this.position,e*t.BYTES_PER_ELEMENT);this.position+=t.byteLength;return t};n.prototype.readFloat64Array=function(e,t){e=e==null?this.byteLength-this.position/8:e;var r=new Float64Array(e);n.memcpy(r.buffer,0,this.buffer,this.byteOffset+this.position,e*r.BYTES_PER_ELEMENT);n.arrayToNative(r,t==null?this.endianness:t);this.position+=r.byteLength;return r};n.prototype.readFloat32Array=function(e,t){e=e==null?this.byteLength-this.position/4:e;var r=new Float32Array(e);n.memcpy(r.buffer,0,this.buffer,this.byteOffset+this.position,e*r.BYTES_PER_ELEMENT);n.arrayToNative(r,t==null?this.endianness:t);this.position+=r.byteLength;return r};n.prototype.writeInt32Array=function(e,t){this._realloc(e.length*4);if(e instanceof Int32Array&&this.byteOffset+this.position%e.BYTES_PER_ELEMENT===0){n.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)}}};n.prototype.writeInt16Array=function(e,t){this._realloc(e.length*2);if(e instanceof Int16Array&&this.byteOffset+this.position%e.BYTES_PER_ELEMENT===0){n.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)}}};n.prototype.writeInt8Array=function(e){this._realloc(e.length*1);if(e instanceof Int8Array&&this.byteOffset+this.position%e.BYTES_PER_ELEMENT===0){n.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])}}};n.prototype.writeUint32Array=function(e,t){this._realloc(e.length*4);if(e instanceof Uint32Array&&this.byteOffset+this.position%e.BYTES_PER_ELEMENT===0){
n.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)}}};n.prototype.writeUint16Array=function(e,t){this._realloc(e.length*2);if(e instanceof Uint16Array&&this.byteOffset+this.position%e.BYTES_PER_ELEMENT===0){n.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)}}};n.prototype.writeUint8Array=function(e){this._realloc(e.length*1);if(e instanceof Uint8Array&&this.byteOffset+this.position%e.BYTES_PER_ELEMENT===0){n.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])}}};n.prototype.writeFloat64Array=function(e,t){this._realloc(e.length*8);if(e instanceof Float64Array&&this.byteOffset+this.position%e.BYTES_PER_ELEMENT===0){n.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)}}};n.prototype.writeFloat32Array=function(e,t){this._realloc(e.length*4);if(e instanceof Float32Array&&this.byteOffset+this.position%e.BYTES_PER_ELEMENT===0){n.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)}}};n.prototype.readInt32=function(e){var t=this._dataView.getInt32(this.position,e==null?this.endianness:e);this.position+=4;return t};n.prototype.readInt16=function(e){var t=this._dataView.getInt16(this.position,e==null?this.endianness:e);this.position+=2;return t};n.prototype.readInt8=function(){var e=this._dataView.getInt8(this.position);this.position+=1;return e};n.prototype.readUint32=function(e){var t=this._dataView.getUint32(this.position,e==null?this.endianness:e);this.position+=4;return t};n.prototype.readUint16=function(e){var t=this._dataView.getUint16(this.position,e==null?this.endianness:e);this.position+=2;return t};n.prototype.readUint8=function(){var e=this._dataView.getUint8(this.position);this.position+=1;return e};n.prototype.readFloat32=function(e){var t=this._dataView.getFloat32(this.position,e==null?this.endianness:e);this.position+=4;return t};n.prototype.readFloat64=function(e){var t=this._dataView.getFloat64(this.position,e==null?this.endianness:e);this.position+=8;return t};n.prototype.writeInt32=function(e,t){this._realloc(4);this._dataView.setInt32(this.position,e,t==null?this.endianness:t);this.position+=4};n.prototype.writeInt16=function(e,t){this._realloc(2);this._dataView.setInt16(this.position,e,t==null?this.endianness:t);this.position+=2};n.prototype.writeInt8=function(e){this._realloc(1);this._dataView.setInt8(this.position,e);this.position+=1};n.prototype.writeUint32=function(e,t){this._realloc(4);this._dataView.setUint32(this.position,e,t==null?this.endianness:t);this.position+=4};n.prototype.writeUint16=function(e,t){this._realloc(2);this._dataView.setUint16(this.position,e,t==null?this.endianness:t);this.position+=2};n.prototype.writeUint8=function(e){this._realloc(1);this._dataView.setUint8(this.position,e);this.position+=1};n.prototype.writeFloat32=function(e,t){this._realloc(4);this._dataView.setFloat32(this.position,e,t==null?this.endianness:t);this.position+=4};n.prototype.writeFloat64=function(e,t){this._realloc(8);this._dataView.setFloat64(this.position,e,t==null?this.endianness:t);this.position+=8};n.endianness=new Int8Array(new Int16Array([1]).buffer)[0]>0;n.memcpy=function(e,t,r,n,i){var s=new Uint8Array(e,t,i);var o=new Uint8Array(r,n,i);s.set(o)};n.arrayToNative=function(e,t){if(t==this.endianness){return e}else{return this.flipArrayEndianness(e)}};n.nativeToEndian=function(e,t){if(this.endianness==t){return e}else{return this.flipArrayEndianness(e)}};n.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 n=r+e.BYTES_PER_ELEMENT-1,i=r;n>i;n--,i++){var s=t[i];t[i]=t[n];t[n]=s}}return e};n.prototype.failurePosition=0;n.prototype.readStruct=function(e){var t={},r,n,i;var s=this.position;for(var o=0;o<e.length;o+=2){r=e[o+1];n=this.readType(r,t);if(n==null){if(this.failurePosition===0){this.failurePosition=this.position}this.position=s;return null}t[e[o]]=n}return t};n.prototype.readUCS2String=function(e,t){return String.fromCharCode.apply(null,this.readUint16Array(e,t))};n.prototype.writeUCS2String=function(e,t,r){if(r==null){r=e.length}for(var n=0;n<e.length&&n<r;n++){this.writeUint16(e.charCodeAt(n),t)}for(;n<r;n++){this.writeUint16(0)}};n.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))}};n.prototype.writeString=function(e,t,r){var n=0;if(t==null||t=="ASCII"){if(r!=null){var i=Math.min(e.length,r);for(n=0;n<i;n++){this.writeUint8(e.charCodeAt(n))}for(;n<r;n++){this.writeUint8(0)}}else{for(n=0;n<e.length;n++){this.writeUint8(e.charCodeAt(n))}}}else{this.writeUint8Array(new TextEncoder(t).encode(e.substring(0,r)))}};n.prototype.readCString=function(e){var t=this.byteLength-this.position;var r=new Uint8Array(this._buffer,this._byteOffset+this.position);var n=t;if(e!=null){n=Math.min(e,t)}for(var i=0;i<n&&r[i]!==0;i++);var s=String.fromCharCode.apply(null,this.mapUint8Array(i));if(e!=null){this.position+=n-i}else if(i!=t){this.position+=1}return s};n.prototype.writeCString=function(e,t){var r=0;if(t!=null){var n=Math.min(e.length,t);for(r=0;r<n;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)}};n.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 i=null;var s="ASCII";var o=this.position;var a;var f;var u;if(typeof e=="string"&&/:/.test(e)){a=e.split(":");e=a[0];i=parseInt(a[1])}if(typeof e=="string"&&/,/.test(e)){a=e.split(",");e=a[0];s=parseInt(a[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(n.BIG_ENDIAN);break;case"int16be":r=this.readInt16(n.BIG_ENDIAN);break;case"uint32be":r=this.readUint32(n.BIG_ENDIAN);break;case"int32be":r=this.readInt32(n.BIG_ENDIAN);break;case"float32be":r=this.readFloat32(n.BIG_ENDIAN);break;case"float64be":r=this.readFloat64(n.BIG_ENDIAN);break;case"uint16le":r=this.readUint16(n.LITTLE_ENDIAN);break;case"int16le":r=this.readInt16(n.LITTLE_ENDIAN);break;case"uint32le":r=this.readUint32(n.LITTLE_ENDIAN);break;case"int32le":r=this.readInt32(n.LITTLE_ENDIAN);break;case"float32le":r=this.readFloat32(n.LITTLE_ENDIAN);break;case"float64le":r=this.readFloat64(n.LITTLE_ENDIAN);break;case"cstring":r=this.readCString(i);break;case"string":r=this.readString(i,s);break;case"u16string":r=this.readUCS2String(i,this.endianness);break;case"u16stringle":r=this.readUCS2String(i,n.LITTLE_ENDIAN);break;case"u16stringbe":r=this.readUCS2String(i,n.BIG_ENDIAN);break;default:if(e.length==3){var l=e[1];var h=e[2];var c=0;if(typeof h=="function"){c=h(t,this,e)}else if(typeof h=="string"&&t[h]!=null){c=parseInt(t[h])}else{c=parseInt(h)}if(typeof l=="string"){var d=l.replace(/(le|be)$/,"");var p=null;if(/le$/.test(l)){p=n.LITTLE_ENDIAN}else if(/be$/.test(l)){p=n.BIG_ENDIAN}if(h=="*"){c=null}switch(d){case"uint8":r=this.readUint8Array(c);break;case"uint16":r=this.readUint16Array(c,p);break;case"uint32":r=this.readUint32Array(c,p);break;case"int8":r=this.readInt8Array(c);break;case"int16":r=this.readInt16Array(c,p);break;case"int32":r=this.readInt32Array(c,p);break;case"float32":r=this.readFloat32Array(c,p);break;case"float64":r=this.readFloat64Array(c,p);break;case"cstring":case"utf16string":case"string":if(c==null){r=[];while(!this.isEof()){u=this.readType(l,t);if(u==null)break;r.push(u)}}else{r=new Array(c);for(f=0;f<c;f++){r[f]=this.readType(l,t)}}break}}else{if(h=="*"){r=[];var m=this.buffer;while(true){var g=this.position;try{var v=this.readType(l,t);if(v==null){this.position=g;break}r.push(v)}catch(y){this.position=g;break}}}else{r=new Array(c);for(f=0;f<c;f++){u=this.readType(l,t);if(u==null)return null;r[f]=u}}}break}}if(i!=null){this.position=o+i}return r};n.prototype.writeStruct=function(e,t){for(var r=0;r<e.length;r+=2){var n=e[r+1];this.writeType(n,t[e[r]],t)}};n.prototype.writeType=function(e,t,r){var i;if(typeof e=="function"){return e(this,t)}else if(typeof e=="object"&&!(e instanceof Array)){return e.set(this,t,r)}var s=null;var o="ASCII";var a=this.position;if(typeof e=="string"&&/:/.test(e)){i=e.split(":");e=i[0];s=parseInt(i[1])}if(typeof e=="string"&&/,/.test(e)){i=e.split(",");e=i[0];o=parseInt(i[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,n.BIG_ENDIAN);break;case"int16be":this.writeInt16(t,n.BIG_ENDIAN);break;case"uint32be":this.writeUint32(t,n.BIG_ENDIAN);break;case"int32be":this.writeInt32(t,n.BIG_ENDIAN);break;case"float32be":this.writeFloat32(t,n.BIG_ENDIAN);break;case"float64be":this.writeFloat64(t,n.BIG_ENDIAN);break;case"uint16le":this.writeUint16(t,n.LITTLE_ENDIAN);break;case"int16le":this.writeInt16(t,n.LITTLE_ENDIAN);break;case"uint32le":this.writeUint32(t,n.LITTLE_ENDIAN);break;case"int32le":this.writeInt32(t,n.LITTLE_ENDIAN);break;case"float32le":this.writeFloat32(t,n.LITTLE_ENDIAN);break;case"float64le":this.writeFloat64(t,n.LITTLE_ENDIAN);break;case"cstring":this.writeCString(t,s);break;case"string":this.writeString(t,o,s);break;case"u16string":this.writeUCS2String(t,this.endianness,s);break;case"u16stringle":this.writeUCS2String(t,n.LITTLE_ENDIAN,s);break;case"u16stringbe":this.writeUCS2String(t,n.BIG_ENDIAN,s);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(s!=null){this.position=a;this._realloc(s);this.position=a+s}};var i=Math.pow(2,32);r.MAX_SIZE=i;n.prototype.readUint64=function(){return this.readUint32()*i+this.readUint32()};n.prototype.writeUint64=function(e){var t=Math.floor(e/i);this.writeUint32(t);this.writeUint32(e&4294967295)};n.prototype.readUint24=function(){return(this.readUint8()<<16)+(this.readUint8()<<8)+this.readUint8()};n.prototype.writeUint24=function(e){this.writeUint8((e&16711680)>>16);this.writeUint8((e&65280)>>8);this.writeUint8(e&255)};n.prototype.adjustUint32=function(e,t){var r=this.position;this.seek(e);this.writeUint32(t);this.seek(r)}},{}],117:[function(e,t,r){var n=e("./DataStream");var s=e("./descriptor");var o=e("./log");var a={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;a.FullBox.prototype=new a.Box;a.ContainerBox.prototype=new a.Box;a.stsdBox.prototype=new a.FullBox;a.SampleEntry.prototype=new a.FullBox;a.TrackReferenceTypeBox.prototype=new a.Box;r=a.boxCodes.length;for(e=0;e<r;e++){a[a.boxCodes[e]+"Box"]=function(e){return function(t){a.Box.call(this,a.boxCodes[e],t)}}(e);a[a.boxCodes[e]+"Box"].prototype=new a.Box}r=a.fullBoxCodes.length;for(e=0;e<r;e++){a[a.fullBoxCodes[e]+"Box"]=function(e){return function(t){a.FullBox.call(this,a.fullBoxCodes[e],t)}}(e);a[a.fullBoxCodes[e]+"Box"].prototype=new a.FullBox}r=a.containerBoxCodes.length;for(e=0;e<r;e++){a[a.containerBoxCodes[e][0]+"Box"]=function(e,t){return function(r){a.ContainerBox.call(this,a.containerBoxCodes[e][0],r);if(t){this.subBoxNames=t;var n=t.length;for(var i=0;i<n;i++){this[t[i]+"s"]=[]}}}}(e,a.containerBoxCodes[e][1]);a[a.containerBoxCodes[e][0]+"Box"].prototype=new a.ContainerBox}r=a.sampleEntryCodes.length;for(t=0;t<r;t++){var n=a.sampleEntryCodes[t].prefix;var i=a.sampleEntryCodes[t].types;var s=i.length;a[n+"SampleEntry"]=function(e,t){a.SampleEntry.call(this,e,t)};a[n+"SampleEntry"].prototype=new a.SampleEntry;for(e=0;e<s;e++){a[i[e]+"Box"]=function(e,t){return function(r){a[a.sampleEntryCodes[e].prefix+"SampleEntry"].call(this,a.sampleEntryCodes[e].types[t],r)}}(t,e);a[i[e]+"Box"].prototype=new a[n+"SampleEntry"]}}r=a.trackReferenceTypes.length;for(e=0;e<r;e++){a[a.trackReferenceTypes[e]+"Box"]=function(e){return function(t){a.TrackReferenceTypeBox.call(this,a.trackReferenceTypes[e],t)}}(e);a[a.trackReferenceTypes[e]+"Box"].prototype=new a.Box}},Box:function(e,t){this.type=e;this.size=t},FullBox:function(e,t){a.Box.call(this,e,t);this.flags=0;this.version=0},ContainerBox:function(e,t){a.Box.call(this,e,t);this.boxes=[]},SampleEntry:function(e,t){a.Box.call(this,e,t);this.boxes=[]},TrackReferenceTypeBox:function(e,t){a.Box.call(this,e,t);this.track_ids=[]},stsdBox:function(e){a.FullBox.call(this,"stsd",e);this.entries=[]},parseOneBox:function(e,t){var r;var n=e.position;var i=0;if(e.byteLength-e.position<8){o.d("BoxParser","Not enough data in stream to parse the type and size of the box");return{code:a.ERR_NOT_ENOUGH_DATA}}var s=e.readUint32();var f=e.readString(4);o.d("BoxParser","Found box of type "+f+" and size "+s+" at position "+n+" in the current buffer ("+(e.buffer.fileStart+n)+" in the file)");i=8;if(s==1){if(e.byteLength-e.position<8){e.seek(n);o.w("BoxParser",'Not enough data in stream to parse the extended size of the "'+f+'" box');return{code:a.ERR_NOT_ENOUGH_DATA}}s=e.readUint64();i+=8}else if(s===0){throw"Unlimited box size not supported"}if(n+s>e.byteLength){e.seek(n);o.w("BoxParser",'Not enough data in stream to parse the entire "'+f+'" box');return{code:a.ERR_NOT_ENOUGH_DATA,type:f,size:s,hdr_size:i}}if(a[f+"Box"]){r=new a[f+"Box"](s-i)}else{if(t){r=new a.SampleEntry(f,s-i)}else{r=new a.Box(f,s-i)}}r.hdr_size=i;r.start=n;r.fileStart=n+e.buffer.fileStart;r.parse(e);e.seek(n+s);return{code:a.OK,box:r,size:s}}};t.exports=a;a.initialize();a.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)}};a.FullBox.prototype.parseFullHeader=function(e){this.version=e.readUint8();this.flags=e.readUint24();this.size-=4};a.ContainerBox.prototype.parse=function(e){var t;var r;var n;n=e.position;while(e.position<n+this.size){t=a.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}}};a.SampleEntry.prototype.isVideo=function(){return false};a.SampleEntry.prototype.isAudio=function(){return false};a.SampleEntry.prototype.isSubtitle=function(){return false};a.SampleEntry.prototype.isMetadata=function(){return false};a.SampleEntry.prototype.isHint=function(){return false};a.SampleEntry.prototype.getCodec=function(){return this.type};a.SampleEntry.prototype.getWidth=function(){return""};a.SampleEntry.prototype.getHeight=function(){return""};a.SampleEntry.prototype.getChannelCount=function(){return""};a.SampleEntry.prototype.getSampleRate=function(){return""};a.SampleEntry.prototype.getSampleSize=function(){return""};a.SampleEntry.prototype.parseHeader=function(e){this.start=e.position;e.readUint8Array(6);this.data_reference_index=e.readUint16()};a.SampleEntry.prototype.parse=function(e){this.parseHeader(e);e.seek(this.start+this.size)};a.SampleEntry.prototype.parseFooter=function(e){var t;var r;while(e.position<this.start+this.size){t=a.parseOneBox(e,false);r=t.box;this.boxes.push(r);this[r.type]=r}};a.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)};a.VisualSampleEntry.prototype.isVideo=function(){return true};a.VisualSampleEntry.prototype.getWidth=function(){return this.width};a.VisualSampleEntry.prototype.getHeight=function(){return this.height};a.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)};a.AudioSampleEntry.prototype.isAudio=function(){return true};a.AudioSampleEntry.prototype.getChannelCount=function(){return this.channel_count};a.AudioSampleEntry.prototype.getSampleRate=function(){return this.samplerate};a.AudioSampleEntry.prototype.getSampleSize=function(){return this.samplesize};a.SubtitleSampleEntry.prototype.parse=function(e){this.parseHeader(e);this.parseFooter(e)};a.SubtitleSampleEntry.prototype.isSubtitle=function(){return true};a.MetadataSampleEntry.prototype.parse=function(e){this.parseHeader(e);this.parseFooter(e)};a.MetadataSampleEntry.prototype.isMetadata=function(){return true};a.TrackReferenceTypeBox.prototype.parse=function(e){this.track_ids=e.readUint8Array(this.size)};a.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)};a.mettBox.prototype.parse=function(e){this.parseHeader(e);this.content_encoding=e.readCString();this.mime_format=e.readCString();this.parseFooter(e)};a.sbttBox.prototype.parse=function(e){this.parseHeader(e);this.content_encoding=e.readCString();this.mime_format=e.readCString();this.parseFooter(e)};a.stxtBox.prototype.parse=function(e){this.parseHeader(e);this.content_encoding=e.readCString();this.mime_format=e.readCString();this.parseFooter(e)};a.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)};a.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)};a.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++}};a.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()};a.TKHD_FLAG_ENABLED=1;a.TKHD_FLAG_IN_MOVIE=2;a.TKHD_FLAG_IN_PREVIEW=4;a.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()};a.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()};a.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)}};a.stsdBox.prototype.parse=function(e){var t;var r;this.parseFullHeader(e);r=e.readUint32();for(i=1;i<=r;i++){t=a.parseOneBox(e,true);this.entries.push(t.box)}};a.avcCBox.prototype.parse=function(e){var t;var r;var n;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++){n=e.readUint16();this.SPS[t]=e.readUint8Array(n);this.size-=2+n}r=e.readUint8();this.size--;this.PPS=new Array(r);for(t=0;t<r;t++){n=e.readUint16();this.PPS[t]=e.readUint8Array(n);this.size-=2+n}if(this.size>0){this.ext=e.readUint8Array(this.size)}};a.hvcCBox.prototype.parse=function(e){var t;var r;var n;var i;this.configurationVersion=e.readUint8();i=e.readUint8();this.general_profile_space=i>>6;this.general_tier_flag=(i&32)>>5;this.general_profile_idc=i&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();i=e.readUint8();this.constantFrameRate=i>>6;this.numTemporalLayers=(i&13)>>3;this.temporalIdNested=(i&4)>>2;this.lengthSizeMinusOne=i&3;this.nalu_arrays=[];numOfArrays=e.readUint8();for(t=0;t<numOfArrays;t++){var s=[];this.nalu_arrays.push(s);i=e.readUint8();s.completeness=(i&128)>>7;s.nalu_type=i&63;numNalus=e.readUint16();for(j=0;j<numNalus;j++){var o={};s.push(o);n=e.readUint16();o.data=e.readUint8Array(n)}}};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}a.avc1Box.prototype.getCodec=function(){var e=a.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}};a.hvc1Box.prototype.getCodec=function(){var e;var t=a.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 n=0;for(e=0;e<32;e++){n|=r&1;if(e==31)break;n<<=1;r>>=1}t+=f(n,0);t+=".";if(this.hvcC.general_tier_flag===0){t+="L"}else{t+="H"}t+=this.hvcC.general_level_idc;var i=false;var s="";for(e=5;e>=0;e--){if(this.hvcC.general_constraint_indicator[e]||i){s="."+f(this.hvcC.general_constraint_indicator[e],0)+s;i=true}}t+=s}return t};a.mp4aBox.prototype.getCodec=function(){var e=a.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}};a.esdsBox.prototype.parse=function(e){this.parseFullHeader(e);this.data=e.readUint8Array(this.size);this.size=0;var t=new s;this.esd=t.parseOneDescriptor(new n(this.data.buffer,0,n.BIG_ENDIAN))};a.txtCBox.prototype.parse=function(e){this.parseFullHeader(e);this.config=e.readCString()};a.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)}};a.cttsBox.prototype.unpack=function(e){var t,r,n;n=0;for(t=0;t<this.sample_counts.length;t++){for(r=0;r<this.sample_counts[t];r++){e[n].pts=e[n].dts+this.sample_offsets[t];n++}}};a.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)}};a.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)}};a.sttsBox.prototype.unpack=function(e){var t,r,n;n=0;for(t=0;t<this.sample_counts.length;t++){for(r=0;r<this.sample_counts[t];r++){if(n===0){e[n].dts=0}else{e[n].dts=e[n-1].dts+this.sample_deltas[t]}n++}}};a.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)}};a.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)}};a.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)}};a.stcoBox.prototype.unpack=function(e){var t;for(t=0;t<this.chunk_offsets.length;t++){e[t].offset=this.chunk_offsets[t]}};a.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)}};a.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)}};a.stscBox.prototype.unpack=function(e){var t,r,n,i,s;i=0;s=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++){s++;for(n=0;n<this.samples_per_chunk[t];n++){if(e[i]){e[i].description_index=this.sample_description_index[t];e[i].chunk_index=s}else{return}i++}}}};a.stszBox.prototype.parse=function(e){var t;var r;var n;this.parseFullHeader(e);this.sample_sizes=[];if(this.version===0){r=e.readUint32();n=e.readUint32();if(r===0){this.sample_sizes=e.readUint32Array(n)}else{this.sample_sizes=[];for(t=0;t<n;t++){this.sample_sizes[t]=r}}}else{this.data=e.readUint8Array(this.size)}};a.stszBox.prototype.unpack=function(e){var t;for(t=0;t<this.sample_sizes.length;t++){e[t].size=this.sample_sizes[t]}};a.mehdBox.prototype.parse=function(e){this.parseFullHeader(e);if(this.version==1){this.fragment_duration=e.readUint64()}else{this.fragment_duration=e.readUint32()}};a.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()};a.mfhdBox.prototype.parse=function(e){this.parseFullHeader(e);this.sequence_number=e.readUint32()};a.TFHD_FLAG_BASE_DATA_OFFSET=1;a.TFHD_FLAG_SAMPLE_DESC=2;a.TFHD_FLAG_SAMPLE_DUR=8;a.TFHD_FLAG_SAMPLE_SIZE=16;a.TFHD_FLAG_SAMPLE_FLAGS=32;a.TFHD_FLAG_DUR_EMPTY=65536;a.TFHD_FLAG_DEFAULT_BASE_IS_MOOF=131072;a.tfhdBox.prototype.parse=function(e){var t=0;this.parseFullHeader(e);this.track_id=e.readUint32();if(this.size>t&&this.flags&a.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&a.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&a.TFHD_FLAG_SAMPLE_DUR){this.default_sample_duration=e.readUint32();t+=4}else{this.default_sample_duration=0}if(this.size>t&&this.flags&a.TFHD_FLAG_SAMPLE_SIZE){this.default_sample_size=e.readUint32();t+=4}else{this.default_sample_size=0}if(this.size>t&&this.flags&a.TFHD_FLAG_SAMPLE_FLAGS){this.default_sample_flags=e.readUint32();t+=4}else{this.default_sample_flags=0}};a.TRUN_FLAGS_DATA_OFFSET=1;a.TRUN_FLAGS_FIRST_FLAG=4;a.TRUN_FLAGS_DURATION=256;a.TRUN_FLAGS_SIZE=512;a.TRUN_FLAGS_FLAGS=1024;a.TRUN_FLAGS_CTS_OFFSET=2048;a.trunBox.prototype.parse=function(e){var t=0;this.parseFullHeader(e);this.sample_count=e.readUint32();t+=4;if(this.size>t&&this.flags&a.TRUN_FLAGS_DATA_OFFSET){this.data_offset=e.readInt32();t+=4}else{this.data_offset=0}if(this.size>t&&this.flags&a.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&a.TRUN_FLAGS_DURATION){this.sample_duration[r]=e.readUint32()}if(this.flags&a.TRUN_FLAGS_SIZE){this.sample_size[r]=e.readUint32()}if(this.flags&a.TRUN_FLAGS_FLAGS){this.sample_flags[r]=e.readUint32()}if(this.flags&a.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()}}}}};a.tfdtBox.prototype.parse=function(e){this.parseFullHeader(e);if(this.version==1){this.baseMediaDecodeTime=e.readUint64()}else{this.baseMediaDecodeTime=e.readUint32()}};a.paylBox.prototype.parse=function(e){this.text=e.readString(this.size)};a.subsBox.prototype.parse=function(e){var t,r;var n;var i;this.parseFullHeader(e);n=e.readUint32();this.samples=[];for(t=0;t<n;t++){var s={};this.samples[t]=s;s.sample_delta=e.readUint32();

s.subsamples=[];i=e.readUint16();if(i>0){for(r=0;r<i;r++){var o={};s.subsamples.push(o);if(this.version==1){o.size=e.readUint32()}else{o.size=e.readUint16()}o.priority=e.readUint8();o.discardable=e.readUint8();o.reserved=e.readUint32()}}}};a.Box.prototype.writeHeader=function(e,t){this.size+=8;if(this.size>n.MAX_SIZE){this.size+=8}o.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)}};a.FullBox.prototype.writeHeader=function(e){this.size+=4;a.Box.prototype.writeHeader.call(this,e," v="+this.version+" f="+this.flags);e.writeUint8(this.version);e.writeUint24(this.flags)};a.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)}};a.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}}o.d("BoxWriter","Adjusting box "+this.type+" with new size "+this.size);e.adjustUint32(this.sizePosition,this.size)};a.TrackReferenceTypeBox.prototype.write=function(e){this.size=this.track_ids.length*4;this.writeHeader(e);e.writeUint32Array(this.track_ids)};a.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)}};a.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)};a.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)};a.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)};a.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)};a.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}o.d("BoxWriter","Adjusting box "+this.type+" with new size "+this.size);e.adjustUint32(this.sizePosition,this.size)};a.SampleEntry.prototype.writeHeader=function(e){this.size=8;a.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)};a.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}o.d("BoxWriter","Adjusting box "+this.type+" with new size "+this.size);e.adjustUint32(this.sizePosition,this.size)};a.SampleEntry.prototype.write=function(e){this.writeHeader(e);this.writeFooter(e)};a.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)};a.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)};a.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)}};a.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])}};a.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)};a.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])}};a.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)};a.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])}};a.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)};a.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])}};a.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])}};a.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)};a.mehdBox.prototype.write=function(e){this.version=0;this.flags=0;this.size=4;this.writeHeader(e);e.writeUint32(this.fragment_duration)};a.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)};a.mfhdBox.prototype.write=function(e){this.version=0;this.flags=0;this.size=4;this.writeHeader(e);e.writeUint32(this.sequence_number)};a.tfhdBox.prototype.write=function(e){this.version=0;this.size=4;if(this.flags&a.TFHD_FLAG_BASE_OFFSET){this.size+=8}if(this.flags&a.TFHD_FLAG_SAMPLE_DESC){this.size+=4}if(this.flags&a.TFHD_FLAG_SAMPLE_DUR){this.size+=4}if(this.flags&a.TFHD_FLAG_SAMPLE_SIZE){this.size+=4}if(this.flags&a.TFHD_FLAG_SAMPLE_FLAGS){this.size+=4}this.writeHeader(e);e.writeUint32(this.track_id);if(this.flags&a.TFHD_FLAG_BASE_OFFSET){e.writeUint64(this.base_data_offset)}if(this.flags&a.TFHD_FLAG_SAMPLE_DESC){e.writeUint32(this.default_sample_description_index)}if(this.flags&a.TFHD_FLAG_SAMPLE_DUR){e.writeUint32(this.default_sample_duration)}if(this.flags&a.TFHD_FLAG_SAMPLE_SIZE){e.writeUint32(this.default_sample_size)}if(this.flags&a.TFHD_FLAG_SAMPLE_FLAGS){e.writeUint32(this.default_sample_flags)}};a.trunBox.prototype.write=function(e){this.version=0;this.size=4;if(this.flags&a.TRUN_FLAGS_DATA_OFFSET){this.size+=4}if(this.flags&a.TRUN_FLAGS_FIRST_FLAG){this.size+=4}if(this.flags&a.TRUN_FLAGS_DURATION){this.size+=4*this.sample_duration.length}if(this.flags&a.TRUN_FLAGS_SIZE){this.size+=4*this.sample_size.length}if(this.flags&a.TRUN_FLAGS_FLAGS){this.size+=4*this.sample_flags.length}if(this.flags&a.TRUN_FLAGS_CTS_OFFSET){this.size+=4*this.sample_composition_time_offset.length}this.writeHeader(e);e.writeUint32(this.sample_count);if(this.flags&a.TRUN_FLAGS_DATA_OFFSET){this.data_offset_position=e.position;e.writeInt32(this.data_offset)}if(this.flags&a.TRUN_FLAGS_FIRST_FLAG){e.writeUint32(this.first_sample_flags)}for(var t=0;t<this.sample_count;t++){if(this.flags&a.TRUN_FLAGS_DURATION){e.writeUint32(this.sample_duration[t])}if(this.flags&a.TRUN_FLAGS_SIZE){e.writeUint32(this.sample_size[t])}if(this.flags&a.TRUN_FLAGS_FLAGS){e.writeUint32(this.sample_flags[t])}if(this.flags&a.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])}}}};a.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":116,"./descriptor":118,"./log":120}],118:[function(e,t,r){var n=e("./log");var i=function(){var e=3;var t=4;var r=5;var i=6;var s=[];s[e]="ES_Descriptor";s[t]="DecoderConfigDescriptor";s[r]="DecoderSpecificInfo";s[i]="SLConfigDescriptor";var o=this;var a={};this.parseOneDescriptor=function(e){var t=0;var r=0;var i;var o;var f;i=e.readUint8();t++;f=e.readUint8();t++;while(f&128){r=(f&127)<<7;f=e.readUint8();t++}r+=f&127;n.d("MPEG4DescriptorParser","Found "+(s[i]|"Descriptor "+i)+", size "+r+" at position "+e.position);if(s[i]){o=new a[s[i]](r)}else{o=new a.Descriptor(r)}o.parse(e);return o};a.Descriptor=function(e,t){this.tag=e;this.size=t;this.descs=[]};a.Descriptor.prototype.parse=function(e){this.data=e.readUint8Array(this.size)};a.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};a.Descriptor.prototype.parseRemainingDescriptors=function(e){var t=e.position;while(e.position<t+this.size){var r=o.parseOneDescriptor(e);this.descs.push(r)}};a.ES_Descriptor=function(t){a.Descriptor.call(this,e,t)};a.ES_Descriptor.prototype=new a.Descriptor;a.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)};a.ES_Descriptor.prototype.getOTI=function(e){var r=this.findDescriptor(t);if(r){return r.oti}else{return 0}};a.ES_Descriptor.prototype.getAudioConfig=function(e){var n=this.findDescriptor(t);if(!n)return null;var i=n.findDescriptor(r);if(i&&i.data){return(i.data[0]&248)>>3}else{return null}};a.DecoderConfigDescriptor=function(e){a.Descriptor.call(this,t,e)};a.DecoderConfigDescriptor.prototype=new a.Descriptor;a.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)};a.DecoderSpecificInfo=function(e){a.Descriptor.call(this,r,e)};a.DecoderSpecificInfo.prototype=new a.Descriptor;a.SLConfigDescriptor=function(e){a.Descriptor.call(this,i,e)};a.SLConfigDescriptor.prototype=new a.Descriptor;return this};t.exports=i},{"./log":120}],119:[function(e,t,r){var n=e("./box");var i=e("./DataStream");var s=e("./log");var o=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=o;o.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 n=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=n;s.d("ISOFile","Concatenating buffer for box parsing (length: "+t+"->"+this.stream.buffer.byteLength+")");return true}else{return false}}else{return false}};o.prototype.parse=function(){var e;var t;var r;s.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){s.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=n.parseOneBox(this.stream);if(t.code===n.ERR_NOT_ENOUGH_DATA){if(t.type==="mdat"){r=new n[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){s.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}}}}};o.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;s.d("ISOFile","Repositioning parser at buffer position: "+this.stream.position);return true}else{return false}};o.prototype.findPosition=function(e,t){var r;var n=null;var i=-1;if(e===true){r=0}else{r=this.stream.bufferIndex}while(r<this.stream.nextBuffers.length){n=this.stream.nextBuffers[r];if(n.fileStart<=t){i=r}else{break}r++}if(i!==-1){n=this.stream.nextBuffers[i];if(n.fileStart+n.byteLength>=t){s.d("ISOFile","Found position in existing buffer #"+i);return i}else{return-1}}else{return-1}};o.prototype.findEndContiguousBuf=function(e){var t;var r;var n;r=this.stream.nextBuffers[e];if(this.stream.nextBuffers.length>e+1){for(t=e+1;t<this.stream.nextBuffers.length;t++){n=this.stream.nextBuffers[t];if(n.fileStart===r.fileStart+r.byteLength){r=n}else{break}}}return r.fileStart+r.byteLength};o.prototype.write=function(e){for(var t=0;t<this.boxes.length;t++){this.boxes[t].write(e)}};o.prototype.writeInitializationSegment=function(e){var t;var r;var i;var o;var a;s.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++){a=this.moov.boxes[t];if(a===this.moov.mvex){r=t}}if(r>-1){this.moov.boxes.splice(r,1)}this.moov.mvex=null}this.moov.mvex=new n.mvexBox;this.moov.boxes.push(this.moov.mvex);this.moov.mvex.mehd=new n.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;o=new n.trexBox;this.moov.mvex.boxes.push(o);o.track_id=this.moov.traks[t].tkhd.track_id;o.default_sample_description_index=1;o.default_sample_duration=this.moov.traks[t].samples.length>0?this.moov.traks[t].samples[0].duration:0;o.default_sample_size=0;o.default_sample_flags=1<<16}this.moov.write(e)};o.prototype.resetTables=function(){var e;var t,r,n,i,s,o,a,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=[];n=t.mdia.minf.stbl.stsc;n.first_chunk=[];n.samples_per_chunk=[];n.sample_description_index=[];i=t.mdia.minf.stbl.stsz;i.sample_sizes=[];s=t.mdia.minf.stbl.stts;s.sample_counts=[];s.sample_deltas=[];o=t.mdia.minf.stbl.ctts;if(o){o.sample_counts=[];o.sample_offsets=[]}a=t.mdia.minf.stbl.stss;if(a){a.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}};o.prototype.buildSampleLists=function(){var e,t,r;var n,i,s,o,a,f,u,l,h;var c,d,p,m,g;var v,y,_,b,w,S;this.originalMvex=this.moov.mvex;for(e=0;e<this.moov.traks.length;e++){n=this.moov.traks[e];n.samples=[];i=n.mdia.minf.stbl.stco||n.mdia.minf.stbl.co64;s=n.mdia.minf.stbl.stsc;o=n.mdia.minf.stbl.stsz;a=n.mdia.minf.stbl.stts;f=n.mdia.minf.stbl.ctts;u=n.mdia.minf.stbl.stss;l=n.mdia.minf.stbl.stsd;h=n.mdia.minf.stbl.subs;v=-1;y=-1;_=-1;b=-1;w=0;subs_entry_index=0;last_subs_sample_index=0;for(t=0;t<o.sample_sizes.length;t++){var x={};x.number=t;x.track_id=n.tkhd.track_id;x.timescale=n.mdia.mdhd.timescale;n.samples[t]=x;x.size=o.sample_sizes[t];if(t===0){d=1;c=0;x.chunk_index=d;x.chunk_run_index=c;g=s.samples_per_chunk[c];m=0;if(c+1<s.first_chunk.length){p=s.first_chunk[c+1]-1}else{p=Infinity}}else{if(t<g){x.chunk_index=d;x.chunk_run_index=c}else{d++;x.chunk_index=d;m=0;if(d<=p){}else{c++;if(c+1<s.first_chunk.length){p=s.first_chunk[c+1]-1}else{p=Infinity}}x.chunk_run_index=c;g+=s.samples_per_chunk[c]}}x.description=l.entries[s.sample_description_index[x.chunk_run_index]-1];x.offset=i.chunk_offsets[x.chunk_index-1]+m;m+=x.size;if(t>v){y++;if(v<0){v=0}v+=a.sample_counts[y]}if(t>0){n.samples[t-1].duration=a.sample_deltas[y];x.dts=n.samples[t-1].dts+n.samples[t-1].duration}else{x.dts=0}if(f){if(t>_){b++;_+=f.sample_counts[b]}x.cts=n.samples[t].dts+f.sample_offsets[b]}else{x.cts=x.dts}if(u){if(t==u.sample_numbers[w]-1){x.is_rap=true;w++}else{x.is_rap=false}}else{x.is_rap=true}if(h){if(h.samples[subs_entry_index].sample_delta+last_subs_sample_index==t){x.subsamples=h.samples[subs_entry_index].subsamples;last_subs_sample_index+=h.samples[subs_entry_index].sample_delta}}}if(t>0)n.samples[t-1].duration=n.mdia.mdhd.duration-n.samples[t-1].dts}};o.prototype.updateSampleLists=function(){var e,t,r;var i,s,o,a;var f;var u,l,h,c,d;var p;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++){h=l.trafs[e];c=this.getTrackById(h.tfhd.track_id);d=this.getTrexById(h.tfhd.track_id);if(h.tfhd.flags&n.TFHD_FLAG_SAMPLE_DESC){i=h.tfhd.default_sample_description_index}else{i=d.default_sample_description_index}if(h.tfhd.flags&n.TFHD_FLAG_SAMPLE_DUR){s=h.tfhd.default_sample_duration}else{s=d.default_sample_duration}if(h.tfhd.flags&n.TFHD_FLAG_SAMPLE_SIZE){o=h.tfhd.default_sample_size}else{o=d.default_sample_size}if(h.tfhd.flags&n.TFHD_FLAG_SAMPLE_FLAGS){a=h.tfhd.default_sample_flags}else{a=d.default_sample_flags}for(t=0;t<h.truns.length;t++){var m=h.truns[t];for(r=0;r<m.sample_count;r++){p={};h.first_sample_index=c.samples.length;c.samples.push(p);p.track_id=c.tkhd.track_id;p.timescale=c.mdia.mdhd.timescale;p.description=c.mdia.minf.stbl.stsd.entries[i-1];p.size=o;if(m.flags&n.TRUN_FLAGS_SIZE){p.size=m.sample_size[r]}p.duration=s;if(m.flags&n.TRUN_FLAGS_DURATION){p.duration=m.sample_duration[r]}if(c.first_traf_merged||r>0){p.dts=c.samples[c.samples.length-2].dts+c.samples[c.samples.length-2].duration}else{if(h.tfdt){p.dts=h.tfdt.baseMediaDecodeTime}else{p.dts=0}c.first_traf_merged=true}p.cts=p.dts;if(m.flags&n.TRUN_FLAGS_CTS_OFFSET){p.cts=p.dts+m.sample_composition_time_offset[r]}sample_flags=a;if(m.flags&n.TRUN_FLAGS_FLAGS){sample_flags=m.sample_flags[r]}else if(r===0&&m.flags&n.TRUN_FLAGS_FIRST_FLAG){sample_flags=m.first_sample_flags}p.is_rap=sample_flags>>16&1?false:true;var g=h.tfhd.flags&n.TFHD_FLAG_BASE_DATA_OFFSET?true:false;var v=h.tfhd.flags&n.TFHD_FLAG_DEFAULT_BASE_IS_MOOF?true:false;var y=m.flags&n.TRUN_FLAGS_DATA_OFFSET?true:false;var _=0;if(!g){if(!v){if(t===0){_=l.fileStart}else{_=f}}else{_=l.fileStart}}else{_=h.tfhd.base_data_offset}if(t===0&&r===0){if(y){p.offset=_+m.data_offset}else{p.offset=_}}else{p.offset=f}f=p.offset+p.size}}if(h.subs){var b=h.first_sample_index;for(t=0;t<h.subs.samples.length;t++){b+=h.subs.samples[t].sample_delta;p=c.samples[b-1];p.subsamples=h.subs.samples[t].subsamples}}}}}};o.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};o.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};o.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};o.prototype.getSample=function(e,t){var r;var n;var o=e.samples[t];if(!this.moov){return null}if(!o.data){o.data=new Uint8Array(o.size);o.alreadyRead=0;this.samplesDataSize+=o.size;s.d("ISOFile","Allocating sample #"+t+" on track #"+e.tkhd.track_id+" of size "+o.size+" (total: "+this.samplesDataSize+")")}else if(o.alreadyRead==o.size){return o}for(n=0;n<this.stream.nextBuffers.length;n++){r=this.stream.nextBuffers[n];if(o.offset+o.alreadyRead>=r.fileStart&&o.offset+o.alreadyRead<r.fileStart+r.byteLength){var a=r.byteLength-(o.offset+o.alreadyRead-r.fileStart);if(o.size-o.alreadyRead<=a){s.d("ISOFile","Getting sample #"+t+" data (alreadyRead: "+o.alreadyRead+" offset: "+(o.offset+o.alreadyRead-r.fileStart)+" size: "+(o.size-o.alreadyRead)+")");i.memcpy(o.data.buffer,o.alreadyRead,r,o.offset+o.alreadyRead-r.fileStart,o.size-o.alreadyRead);o.alreadyRead=o.size;r.usedBytes+=o.size-o.alreadyRead;if(r.usedBytes===r.byteLength){this.stream.nextBuffers.splice(n,1);n--}return o}else{s.d("ISOFile","Getting sample data (alreadyRead: "+o.alreadyRead+" offset: "+(o.offset+o.alreadyRead-r.fileStart)+" size: "+a+")");i.memcpy(o.data.buffer,o.alreadyRead,r,o.offset+o.alreadyRead-r.fileStart,a);o.alreadyRead+=a;r.usedBytes+=a;if(r.usedBytes===r.byteLength){this.stream.nextBuffers.splice(n,1);n--}}}}return null};o.prototype.releaseSample=function(e,t){var r=e.samples[t];r.data=null;this.samplesDataSize-=r.size;return r.size}},{"./DataStream":116,"./box":117,"./log":120}],120:[function(e,t,r){var n=function(){var e=new Date;var t=4;var r=3;var i=2;var s=1;var o=t;var a={setLogLevel:function(e){if(e==this.d)o=s;else if(e==this.i)o=i;else if(e==this.w)o=r;else if(e==this.e)o=t;else o=t},d:function(t,r){if(s>=o){console.debug("["+n.getDurationString(new Date-e,1e3)+"]","["+t+"]",r)}},i:function(t,r){if(i>=o){console.info("["+n.getDurationString(new Date-e,1e3)+"]","["+t+"]",r)}},w:function(t,i){if(r>=o){console.warn("["+n.getDurationString(new Date-e,1e3)+"]","["+t+"]",i)}},e:function(r,i){if(t>=o){console.error("["+n.getDurationString(new Date-e,1e3)+"]","["+r+"]",i)}}};return a}();t.exports=n;n.getDurationString=function(e,t){function r(e,t){var r=""+e;var n=r.split(".");while(n[0].length<t){n[0]="0"+n[0]}return n.join(".")}var n=t||1;var i=e/n;var s=Math.floor(i/3600);i-=s*3600;var o=Math.floor(i/60);i-=o*60;var a=i*1e3;i=Math.floor(i);a-=i*1e3;a=Math.floor(a);return""+s+":"+r(o,2)+":"+r(i,2)+"."+r(a,3)};n.printRanges=function(e){var t=e.length;if(t>0){var r="";for(var i=0;i<t;i++){if(i>0)r+=",";r+="["+n.getDurationString(e.start(i))+","+n.getDurationString(e.end(i))+"]"}return r}else{return"(empty)"}}},{}],121:[function(e,t,r){var n=e("./box");var s=e("./DataStream");var o=e("./isofile");var a=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 n=this.inputIsoFile.getTrackById(e);if(n){var i={};this.fragmentedTracks.push(i);i.id=e;i.user=t;i.trak=n;n.nextSample=0;i.segmentStream=null;i.nb_samples=1e3;i.rapAlignement=true;if(r){if(r.nbSamples)i.nb_samples=r.nbSamples;if(r.rapAlignement)i.rapAlignement=r.rapAlignement}}};f.prototype.unsetSegmentOptions=function(e){var t=-1;for(var r=0;r<this.fragmentedTracks.length;r++){var n=this.fragmentedTracks[r];if(n.id==e){t=r}}if(t>-1){this.fragmentedTracks.splice(t,1)}};f.prototype.setExtractionOptions=function(e,t,r){var n=this.inputIsoFile.getTrackById(e);if(n){var i={};this.extractedTracks.push(i);i.id=e;i.user=t;i.trak=n;n.nextSample=0;i.nb_samples=1e3;i.samples=[];if(r){if(r.nbSamples)i.nb_samples=r.nbSamples}}};f.prototype.unsetExtractionOptions=function(e){var t=-1;for(var r=0;r<this.extractedTracks.length;r++){var n=this.extractedTracks[r];if(n.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 s=new n.tfhdBox;i.boxes.push(s);s.track_id=e.track_id;s.flags=n.TFHD_FLAG_DEFAULT_BASE_IS_MOOF;var o=new n.tfdtBox;i.boxes.push(o);o.baseMediaDecodeTime=e.dts;var a=new n.trunBox;i.boxes.push(a);t.trun=a;a.flags=n.TRUN_FLAGS_DATA_OFFSET|n.TRUN_FLAGS_DURATION|n.TRUN_FLAGS_SIZE|n.TRUN_FLAGS_FLAGS|n.TRUN_FLAGS_CTS_OFFSET;a.data_offset=0;a.first_sample_flags=0;a.sample_count=1;a.sample_duration=[];a.sample_duration[0]=e.duration;a.sample_size=[];a.sample_size[0]=e.size;a.sample_flags=[];a.sample_flags[0]=0;a.sample_composition_time_offset=[];a.sample_composition_time_offset[0]=e.cts-e.dts;return t};f.prototype.createFragment=function(e,t,r,i){var o=this.inputIsoFile.getTrackById(t);var f=this.inputIsoFile.getSample(o,r);if(f==null){if(this.nextSeekPosition){this.nextSeekPosition=Math.min(o.samples[r].offset,this.nextSeekPosition)}else{this.nextSeekPosition=o.samples[r].offset}return null}var u=i||new s;u.endianness=s.BIG_ENDIAN;var l=this.createSingleSampleMoof(f);l.write(u);l.trun.data_offset=l.size+8;a.d("BoxWriter","Adjusting data_offset with new value "+l.trun.data_offset);u.adjustUint32(l.trun.data_offset_position,l.trun.data_offset);var h=new n.mdatBox;h.data=f.data;h.write(u);return u};ArrayBuffer.concat=function(e,t){a.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 n;n=new Uint8Array(r);n.set(new Uint8Array(e,t,r));n.buffer.fileStart=e.fileStart+t;n.buffer.usedBytes=0;return n.buffer};f.prototype.insertBuffer=function(e){var t=true;for(var r=0;r<this.nextBuffers.length;r++){var n=this.nextBuffers[r];if(e.fileStart<=n.fileStart){if(e.fileStart===n.fileStart){if(e.byteLength>n.byteLength){this.nextBuffers.splice(r,1);r--;continue}else{a.w("MP4Box","Buffer (fileStart: "+e.fileStart+" - Length: "+e.byteLength+") already appended, ignoring")}}else{if(e.fileStart+e.byteLength<=n.fileStart){}else{e=this.reduceBuffer(e,0,n.fileStart-e.fileStart)}a.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<n.fileStart+n.byteLength){var i=n.fileStart+n.byteLength-e.fileStart;var s=e.byteLength-i;if(s>0){e=this.reduceBuffer(e,i,s)}else{t=false;break}}}if(t){a.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){a.d("MP4Box","Creating media fragment on track #"+r.id+" for sample "+t.nextSample);var n=this.createFragment(this.inputIsoFile,r.id,t.nextSample,r.segmentStream);if(n){r.segmentStream=n;t.nextSample++}else{break}if(t.nextSample%r.nb_samples===0||t.nextSample>=t.samples.length){a.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 i=this.extractedTracks[e];t=i.trak;while(t.nextSample<t.samples.length){a.d("MP4Box","Exporting on track #"+i.id+" sample #"+t.nextSample);var s=this.inputIsoFile.getSample(t,t.nextSample);if(s){t.nextSample++;i.samples.push(s)}else{return}if(t.nextSample%i.nb_samples===0||t.nextSample>=t.samples.length){a.d("MP4Box","Sending samples on track #"+i.id+" for sample "+t.nextSample);if(this.onSamples){this.onSamples(i.id,i.user,i.samples)}i.samples=[];if(i!==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){a.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 s(r,0,s.BIG_ENDIAN);this.inputStream.nextBuffers=this.nextBuffers;this.inputStream.bufferIndex=0}else{a.w("MP4Box","The first buffer should have a fileStart of 0");return}}else{a.w("MP4Box","No buffer to start parsing from");return}}if(!this.inputIsoFile){this.inputIsoFile=new o(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 n=this.getInfo();this.readySent=true;this.onReady(n)}this.processSamples();if(this.nextSeekPosition){t=this.nextSeekPosition;this.nextSeekPosition=undefined}else{t=this.inputIsoFile.nextParsePosition}var i=this.inputIsoFile.findPosition(true,t);if(i!==-1){t=this.inputIsoFile.findEndContiguousBuf(i)}a.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 s=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(s+this.inputIsoFile.moov.mvhd.creation_time*1e3);e.modified=new Date(s+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(s+t.tkhd.creation_time*1e3);r.modified=new Date(s+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 s;e.endianness=s.BIG_ENDIAN;this.inputIsoFile.writeInitializationSegment(e);return e.buffer};f.prototype.writeFile=function(){var e=new s;e.endianness=s.BIG_ENDIAN;this.inputIsoFile.write(e);return e.buffer};f.prototype.initializeSegmentation=function(){var e;var t;var r;var n;var i;if(this.onSegment===null){a.w("MP4Box","No segmentation callback set!")}if(!this.isFragmentationStarted){this.isFragmentationStarted=true;this.nextMoofNumber=0;this.inputIsoFile.resetTables()}n=[];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}}i=this.inputIsoFile.getTrackById(this.fragmentedTracks[e].id);delete i.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]=i;break}}seg={};seg.id=i.tkhd.track_id;seg.user=this.fragmentedTracks[e].user;seg.buffer=this.getInitializationSegment();n.push(seg)}return n};f.prototype.releaseUsedSamples=function(e,t){var r=0;var n=this.inputIsoFile.getTrackById(e);if(!n.lastValidSample)n.lastValidSample=0;for(var i=n.lastValidSample;i<t;i++){r+=this.inputIsoFile.releaseSample(n,i)}a.d("MP4Box","Track #"+e+" released samples up to "+t+" (total size: "+r+", remaining: "+this.inputIsoFile.samplesDataSize+")");n.lastValidSample=t};f.prototype.flush=function(){a.i("MP4Box","Flushing remaining samples");this.inputIsoFile.updateSampleLists();this.processSamples()};f.prototype.seekTrack=function(e,t,r){var n;var i;var s=Infinity;var o=0;var f=Infinity;var u=0;var l=0;var h;for(n=0;n<r.samples.length;n++){i=r.samples[n];if(n===0){f=i.offset;l=0;h=i.timescale}else if(i.cts>e*i.timescale){f=r.samples[n-1].offset;l=n-1;break}if(t&&i.is_rap){s=i.offset;o=i.cts;u=n}}if(t){r.nextSample=u;a.i("MP4Box","Seeking to RAP sample #"+r.nextSample+" on track "+r.tkhd.track_id+", time "+a.getDurationString(o,h)+" and offset: "+s);return{offset:s,time:o/h}}else{r.nextSample=l;a.i("MP4Box","Seeking to non-RAP sample #"+r.nextSample+" on track "+r.tkhd.track_id+", time "+a.getDurationString(e)+" and offset: "+s);return{offset:f,time:e}}};f.prototype.seek=function(e,t){var r=this.inputIsoFile.moov;var n;var i;var s;var o={offset:Infinity,time:Infinity};if(!this.inputIsoFile.moov){throw"Cannot seek: moov not received!"}else{for(s=0;s<r.traks.length;s++){n=r.traks[s];i=this.seekTrack(e,t,n);if(i.offset<o.offset){o.offset=i.offset}if(i.time<o.time){o.time=i.time}}if(o.offset===Infinity){o={offset:this.inputIsoFile.nextParsePosition,time:0}}else{var f=this.inputIsoFile.findPosition(true,o.offset);if(f!==-1){o.offset=this.inputIsoFile.findEndContiguousBuf(f)}}a.i("MP4Box","Seeking at time "+a.getDurationString(o.time,1)+" needs a buffer with a fileStart position of "+o.offset);return o}}},{"./DataStream":116,"./box":117,"./isofile":119,"./log":120}],122:[function(e,t,r){var n=e("debug")("videostream");var i=e("mp4box");var s=.01;var o=60;t.exports=function(e,t,r){r=r||{};var f=r.debugTrack||-1;var u=[];function l(){t.addEventListener("waiting",S);t.addEventListener("timeupdate",E)}l();var h=false;function c(e){h=true;t.removeEventListener("waiting",S);t.removeEventListener("timeupdate",E);if(p.readyState==="open")p.endOfStream(e)}function d(e){var r=e.buffer.buffered;var i=t.currentTime;var a=-1;for(var f=0;f<r.length;f++){var u=r.start(f);var l=r.end(f)+s;if(u>i){break}else if(a>=0||i<=l){a=l}}var h=a-i;if(h<0)h=0;n("Buffer length: %f",h);return h<=o}var p=new 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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 i={start:y,end:e.length-1};_=e.createReadStream(i);function s(e){_.pause();var t=e.toArrayBuffer();t.fileStart=y;y+=t.byteLength;var r;try{r=m.appendBuffer(t)}catch(i){n("MP4Box threw exception: %s",i.message);if(p.readyState==="open"){c("decode")}_.destroy();b();return}w(r)}_.on("data",s);function o(){b();w(y)}_.on("end",o);function a(e){n("Stream error: %s",e.message);if(p.readyState==="open"){c("network")}}_.on("error",a);b=function(){_.removeListener("data",s);_.removeListener("end",o);_.removeListener("error",a);_=null;b=null}}function S(){if(g){x(t.currentTime)}}function x(e){if(h)l();var t=m.seek(e,true);n("Seeking to time: %d",e);n("Seeked file offset: %d",t.offset);w(t.offset)}function k(e,t,r){e.arrayBuffers.push({buffer:t,ended:r||false});A(e)}function E(){Object.keys(v).forEach(function(e){var t=v[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(i){n("SourceBuffer error: %s",i.message);c("decode");return}if(r){U()}}function U(){if(p.readyState!=="open"){return}var e=Object.keys(v).every(function(e){var t=v[e];return t.ended&&!t.buffer.updating});if(e){c()}}};function a(e,t){var r=new Blob(t);var n=URL.createObjectURL(r);var i=document.createElement("a");i.setAttribute("href",n);i.setAttribute("download",e);i.click()}},{debug:72,mp4box:121}],123:[function(e,t,r){t.exports=i;var n=Object.prototype.hasOwnProperty;function i(){var e={};for(var t=0;t<arguments.length;t++){var r=arguments[t];for(var i in r){if(n.call(r,i)){e[i]=r[i]}}}return e}},{}],124:[function(e,t,r){t.exports=i;var n=Object.prototype.hasOwnProperty;function i(e){for(var t=1;t<arguments.length;t++){var r=arguments[t];for(var i in r){if(n.call(r,i)){e[i]=r[i]}}}return e}},{}],125:[function(e,t,r){t.exports=function n(e,t,r){if(t===undefined){return function(t,r){return n(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+""}},{}],126:[function(e,t,r){t.exports={name:"webtorrent",description:"Streaming torrent client",version:"0.63.4",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,os:false,"path-exists":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":"^5.0.0","bittorrent-swarm":"^6.0.0","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:"^2.1.0","fs-chunk-store":"^1.3.4",hat:"0.0.3","immediate-chunk-store":"^1.0.7",inherits:"^2.0.1",inquirer:"^0.11.0","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":"^2.1.0","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:"^1.0.0",thunky:"^0.1.0","torrent-discovery":"^4.0.0","torrent-piece":"^1.0.0",uniq:"^1.0.1",ut_metadata:"^3.0.1",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:"^12.0.1",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",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"}}},{}],127:[function(e,t,r){(function(r,n,i){t.exports=S;var s=e("create-torrent");var o=e("debug")("webtorrent");var a=e("bittorrent-dht/client");var f=e("events").EventEmitter;var u=e("xtend");var l=e("hat");var h=e("inherits");var c=e("load-ip-set");var d=e("run-parallel");var p=e("parse-torrent");var m=e("speedometer");var g=e("zero-fill");var v=e("path");var y=e("./lib/torrent");h(S,f);var _=e("./package.json").version;var b=_.match(/([0-9]+)/g).slice(0,2).map(g(2)).join("");var w="-WW"+b+"-";function S(e){var t=this;if(!(t instanceof S))return new S(e);f.call(t);if(!e)e={};if(!o.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||n.WRTC;t.torrents=[];t.downloadSpeed=m();t.uploadSpeed=m();t.peerId=typeof e.peerId==="string"?e.peerId:(e.peerId||new i(w+l(48))).toString("hex");t.peerIdBuffer=new i(t.peerId,"hex");t.nodeId=typeof e.nodeId==="string"?e.nodeId:e.nodeId&&e.nodeId.toString("hex")||l(160);t.nodeIdBuffer=new i(t.nodeId,"hex");if(e.dht!==false&&typeof a==="function"){t.dht=new a(u({nodeId:t.nodeId},e.dht));t.dht.listen(e.dhtPort)}o("new webtorrent (peerId %s, nodeId %s)",t.peerId,t.nodeId);if(typeof c==="function"){c(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;s()})}else r.nextTick(s);function s(){if(t.destroyed)return;t.ready=true;t.emit("ready")}}Object.defineProperty(S.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}});S.prototype.get=function(e){var t=this;if(e instanceof y)return e;var r;try{r=p(e)}catch(n){}if(!r)return null;if(!r.infoHash)throw new Error("Invalid torrent identifier");for(var i=0,s=t.torrents.length;i<s;i++){var o=t.torrents[i];if(o.infoHash===r.infoHash)return o}return null};S.prototype.add=S.prototype.download=function(e,t,n){var i=this;if(i.destroyed)throw new Error("client is destroyed");if(typeof t==="function")return i.add(e,null,t);o("add");if(!t)t={};else t=u(t);t.client=i;var s=i.get(e);function a(){if(typeof n==="function")n(s)}if(s){if(s.ready)r.nextTick(a);else s.on("ready",a)}else{s=new y(e,t);i.torrents.push(s);s.on("error",function(e){i.emit("error",e,s);i.remove(s)});s.on("listening",function(e){i.emit("listening",e,s)});s.on("ready",function(){a();i.emit("torrent",s)})}return s};S.prototype.seed=function(e,t,r){var n=this;if(n.destroyed)throw new Error("client is destroyed");if(typeof t==="function")return n.seed(e,null,t);o("seed");if(!t)t={};else t=u(t);if(typeof e==="string")t.path=v.dirname(e);if(!t.createdBy)t.createdBy="WebTorrent/"+_;var i;var a=n.add(undefined,t,function(e){var t=[function(t){e.load(i,t)}];if(n.dht){t.push(function(t){e.on("dhtAnnounce",t)})}d(t,function(t){if(t)return n.emit("error",t);f();n.emit("seed",e)})});s.parseInput(e,t,function(r,o){if(r)return n.emit("error",r);i=o.map(function(e){return e.getStream});s(e,t,function(e,t){if(e)return n.emit("error",e);if(n.destroyed)return;var r=n.get(t);if(r){a.destroy();f();return}else{a._onTorrentId(t)}})});function f(){o("on seed");if(typeof r==="function")r(a)}return 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t=this.protocol||"",r=this.pathname||"",n=this.hash||"",s=false,o="";if(this.host){s=e+this.host}else if(this.hostname){s=e+(this.hostname.indexOf(":")===-1?this.hostname:"["+this.hostname+"]");if(this.port){s+=":"+this.port}}if(this.query&&i.isObject(this.query)&&Object.keys(this.query).length){o=b.stringify(this.query)}var a=this.search||o&&"?"+o||"";if(t&&t.substr(-1)!==":")t+=":";if(this.slashes||(!t||_[t])&&s!==false){s="//"+(s||"");if(r&&r.charAt(0)!=="/")r="/"+r}else if(!s){s=""}if(n&&n.charAt(0)!=="#")n="#"+n;if(a&&a.charAt(0)!=="?")a="?"+a;r=r.replace(/[?#]/g,function(e){return encodeURIComponent(e)});a=a.replace("#","%23");return t+s+r+a+n};function x(e,t){return w(e,false,true).resolve(t)}s.prototype.resolve=function(e){return this.resolveObject(w(e,false,true)).format()};function k(e,t){if(!e)return t;return w(e,false,true).resolveObject(t)}s.prototype.resolveObject=function(e){if(i.isString(e)){var t=new s;t.parse(e,false,true);e=t}var r=new s;var n=Object.keys(this);for(var o=0;o<n.length;o++){var a=n[o];r[a]=this[a]}r.hash=e.hash;if(e.href===""){r.href=r.format();return r}if(e.slashes&&!e.protocol){var f=Object.keys(e);for(var u=0;u<f.length;u++){var l=f[u];if(l!=="protocol")r[l]=e[l]}if(_[r.protocol]&&r.hostname&&!r.pathname){r.path=r.pathname="/"}r.href=r.format();return r}if(e.protocol&&e.protocol!==r.protocol){if(!_[e.protocol]){var h=Object.keys(e);for(var c=0;c<h.length;c++){var d=h[c];r[d]=e[d]}r.href=r.format();return r}r.protocol=e.protocol;if(!e.host&&!y[e.protocol]){var p=(e.pathname||"").split("/");while(p.length&&!(e.host=p.shift()));if(!e.host)e.host="";if(!e.hostname)e.hostname="";if(p[0]!=="")p.unshift("");if(p.length<2)p.unshift("");r.pathname=p.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 m=r.pathname||"";var g=r.search||"";r.path=m+g}r.slashes=r.slashes||e.slashes;r.href=r.format();return r}var v=r.pathname&&r.pathname.charAt(0)==="/",b=e.host||e.pathname&&e.pathname.charAt(0)==="/",w=b||v||r.host&&e.pathname,S=w,x=r.pathname&&r.pathname.split("/")||[],p=e.pathname&&e.pathname.split("/")||[],k=r.protocol&&!_[r.protocol];if(k){r.hostname="";r.port=null;if(r.host){if(x[0]==="")x[0]=r.host;else x.unshift(r.host)}r.host="";if(e.protocol){e.hostname=null;e.port=null;if(e.host){if(p[0]==="")p[0]=e.host;else p.unshift(e.host)}e.host=null}w=w&&(p[0]===""||x[0]==="")}if(b){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;x=p}else if(p.length){if(!x)x=[];x.pop();x=x.concat(p);r.search=e.search;r.query=e.query}else if(!i.isNullOrUndefined(e.search)){if(k){r.hostname=r.host=x.shift();var E=r.host&&r.host.indexOf("@")>0?r.host.split("@"):false;if(E){r.auth=E.shift();r.host=r.hostname=E.shift()}}r.search=e.search;r.query=e.query;if(!i.isNull(r.pathname)||!i.isNull(r.search)){r.path=(r.pathname?r.pathname:"")+(r.search?r.search:"")}r.href=r.format();return r}if(!x.length){r.pathname=null;if(r.search){r.path="/"+r.search}else{r.path=null}r.href=r.format();return r}var A=x.slice(-1)[0];var U=(r.host||e.host||x.length>1)&&(A==="."||A==="..")||A==="";var T=0;for(var I=x.length;I>=0;I--){A=x[I];if(A==="."){x.splice(I,1)}else if(A===".."){x.splice(I,1);T++}else if(T){x.splice(I,1);T--}}if(!w&&!S){for(;T--;T){x.unshift("..")}}if(w&&x[0]!==""&&(!x[0]||x[0].charAt(0)!=="/")){x.unshift("")}if(U&&x.join("/").substr(-1)!=="/"){x.push("")}var B=x[0]===""||x[0]&&x[0].charAt(0)==="/";if(k){r.hostname=r.host=B?"":x.length?x.shift():"";var E=r.host&&r.host.indexOf("@")>0?r.host.split("@"):false;if(E){r.auth=E.shift();r.host=r.hostname=E.shift()}}w=w||r.host&&x.length;if(w&&!B){x.unshift("")}if(!x.length){r.pathname=null;r.path=null}else{r.pathname=x.join("/")}if(!i.isNull(r.pathname)||!i.isNull(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};s.prototype.parseHost=function(){var e=this.host;var t=a.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}},{"./util":165,punycode:140,querystring:143}],165:[function(e,t,r){"use strict";t.exports={isString:function(e){return typeof e==="string"},isObject:function(e){return typeof e==="object"&&e!==null},isNull:function(e){return e===null},isNullOrUndefined:function(e){return e==null}}},{}],166:[function(e,t,r){arguments[4][123][0].apply(r,arguments)},{dup:123}]},{},[127])(127)});