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From https://github.com/MinEduTDF/idb-chunk-store\r\n// We use temporary IndexDB (all data are removed on destroy) to avoid RAM issues\r\n// Thanks @santiagogil and @Feross\r\n\r\nimport { EventEmitter } from 'events'\r\nimport Dexie from 'dexie'\r\n\r\nclass ChunkDatabase extends Dexie {\r\n  chunks: Dexie.Table<{ id: number, buf: Buffer }, number>\r\n\r\n  constructor (dbname: string) {\r\n    super(dbname)\r\n\r\n    this.version(1).stores({\r\n      chunks: 'id'\r\n    })\r\n  }\r\n}\r\n\r\nclass ExpirationDatabase extends Dexie {\r\n  databases: Dexie.Table<{ name: string, expiration: number }, number>\r\n\r\n  constructor () {\r\n    super('webtorrent-expiration')\r\n\r\n    this.version(1).stores({\r\n      databases: 'name,expiration'\r\n    })\r\n  }\r\n}\r\n\r\nexport class PeertubeChunkStore extends EventEmitter {\r\n  private static readonly BUFFERING_PUT_MS = 1000\r\n  private static readonly CLEANER_INTERVAL_MS = 1000 * 60 // 1 minute\r\n  private static readonly CLEANER_EXPIRATION_MS = 1000 * 60 * 5 // 5 minutes\r\n\r\n  chunkLength: number\r\n\r\n  private pendingPut: { id: number, buf: Buffer, cb: Function }[] = []\r\n  // If the store is full\r\n  private memoryChunks: { [ id: number ]: Buffer | true } = {}\r\n  private databaseName: string\r\n  private putBulkTimeout: any\r\n  private cleanerInterval: any\r\n  private db: ChunkDatabase\r\n  private expirationDB: ExpirationDatabase\r\n  private readonly length: number\r\n  private readonly lastChunkLength: number\r\n  private readonly lastChunkIndex: number\r\n\r\n  constructor (chunkLength: number, opts: any) {\r\n    super()\r\n\r\n    this.databaseName = 'webtorrent-chunks-'\r\n\r\n    if (!opts) opts = {}\r\n    if (opts.torrent && opts.torrent.infoHash) this.databaseName += opts.torrent.infoHash\r\n    else this.databaseName += '-default'\r\n\r\n    this.setMaxListeners(100)\r\n\r\n    this.chunkLength = Number(chunkLength)\r\n    if (!this.chunkLength) throw new Error('First argument must be a chunk length')\r\n\r\n    this.length = Number(opts.length) || Infinity\r\n\r\n    if (this.length !== Infinity) {\r\n      this.lastChunkLength = (this.length % this.chunkLength) || this.chunkLength\r\n      this.lastChunkIndex = Math.ceil(this.length / this.chunkLength) - 1\r\n    }\r\n\r\n    this.db = new ChunkDatabase(this.databaseName)\r\n    // Track databases that expired\r\n    this.expirationDB = new ExpirationDatabase()\r\n\r\n    this.runCleaner()\r\n  }\r\n\r\n  put (index: number, buf: Buffer, cb: (err?: Error) => void) {\r\n    const isLastChunk = (index === this.lastChunkIndex)\r\n    if (isLastChunk && buf.length !== this.lastChunkLength) {\r\n      return this.nextTick(cb, new Error('Last chunk length must be ' + this.lastChunkLength))\r\n    }\r\n    if (!isLastChunk && buf.length !== this.chunkLength) {\r\n      return this.nextTick(cb, new Error('Chunk length must be ' + this.chunkLength))\r\n    }\r\n\r\n    // Specify we have this chunk\r\n    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Store them in memory.', { err })\r\n\r\n        processing.forEach(p => this.memoryChunks[ p.id ] = p.buf)\r\n      } finally {\r\n        processing.forEach(p => p.cb())\r\n      }\r\n    }, PeertubeChunkStore.BUFFERING_PUT_MS)\r\n  }\r\n\r\n  get (index: number, opts: any, cb: (err?: Error, buf?: Buffer) => void): void {\r\n    if (typeof opts === 'function') return this.get(index, null, opts)\r\n\r\n    // IndexDB could be slow, use our memory index first\r\n    const memoryChunk = this.memoryChunks[index]\r\n    if (memoryChunk === undefined) {\r\n      const err = new Error('Chunk not found') as any\r\n      err['notFound'] = true\r\n\r\n      return process.nextTick(() => cb(err))\r\n    }\r\n\r\n    // Chunk in memory\r\n    if (memoryChunk !== true) return cb(null, memoryChunk)\r\n\r\n    // Chunk in store\r\n    this.db.transaction('r', this.db.chunks, async () => {\r\n      const result = await this.db.chunks.get({ id: index })\r\n      if (result === undefined) return cb(null, Buffer.alloc(0))\r\n\r\n      const buf = result.buf\r\n      if (!opts) return this.nextTick(cb, null, buf)\r\n\r\n      const offset = opts.offset || 0\r\n      const len = opts.length || (buf.length - offset)\r\n      return cb(null, buf.slice(offset, len + offset))\r\n    })\r\n    .catch(err => {\r\n      console.error(err)\r\n      return cb(err)\r\n    })\r\n  }\r\n\r\n  close (cb: (err?: Error) => void) {\r\n    return this.destroy(cb)\r\n  }\r\n\r\n  async destroy (cb: (err?: Error) => void) {\r\n    try {\r\n      if (this.pendingPut) {\r\n        clearTimeout(this.putBulkTimeout)\r\n        this.pendingPut = null\r\n      }\r\n      if (this.cleanerInterval) {\r\n        clearInterval(this.cleanerInterval)\r\n        this.cleanerInterval = null\r\n      }\r\n\r\n      if (this.db) {\r\n        this.db.close()\r\n\r\n        await this.dropDatabase(this.databaseName)\r\n      }\r\n\r\n      if (this.expirationDB) {\r\n        this.expirationDB.close()\r\n        this.expirationDB = null\r\n      }\r\n\r\n      return cb()\r\n    } catch (err) {\r\n      console.error('Cannot destroy peertube chunk store.', err)\r\n      return cb(err)\r\n    }\r\n  }\r\n\r\n  private runCleaner () {\r\n    this.checkExpiration()\r\n\r\n    this.cleanerInterval = setInterval(async () => {\r\n      this.checkExpiration()\r\n    }, PeertubeChunkStore.CLEANER_INTERVAL_MS)\r\n  }\r\n\r\n  private async checkExpiration () {\r\n    let databasesToDeleteInfo: { name: string }[] = []\r\n\r\n    try {\r\n      await this.expirationDB.transaction('rw', this.expirationDB.databases, async () => {\r\n        // Update our database expiration since we are alive\r\n        await this.expirationDB.databases.put({\r\n          name: this.databaseName,\r\n          expiration: new Date().getTime() + PeertubeChunkStore.CLEANER_EXPIRATION_MS\r\n        })\r\n\r\n        const now = new Date().getTime()\r\n        databasesToDeleteInfo = await this.expirationDB.databases.where('expiration').below(now).toArray()\r\n      })\r\n    } catch (err) {\r\n      console.error('Cannot update expiration of fetch expired databases.', err)\r\n    }\r\n\r\n    for (const databaseToDeleteInfo of databasesToDeleteInfo) {\r\n      await this.dropDatabase(databaseToDeleteInfo.name)\r\n    }\r\n  }\r\n\r\n  private async dropDatabase (databaseName: string) {\r\n    const dbToDelete = new ChunkDatabase(databaseName)\r\n    console.log('Destroying IndexDB database %s.', databaseName)\r\n\r\n    try {\r\n      await dbToDelete.delete()\r\n\r\n      await this.expirationDB.transaction('rw', this.expirationDB.databases, () => {\r\n        return this.expirationDB.databases.where({ name: databaseName }).delete()\r\n      })\r\n    } catch (err) {\r\n      console.error('Cannot delete %s.', databaseName, err)\r\n    }\r\n  }\r\n\r\n  private nextTick <T> (cb: (err?: Error, val?: T) => void, err: Error, val?: T) {\r\n    process.nextTick(() => cb(err, val), undefined)\r\n  }\r\n}\r\n","// Thanks: https://github.com/feross/render-media\r\n// TODO: use render-media once https://github.com/feross/render-media/issues/32 is fixed\r\n\r\nconst MediaElementWrapper = require('mediasource')\r\nimport { extname } from 'path'\r\nconst videostream = require('videostream')\r\n\r\nconst VIDEOSTREAM_EXTS = [\r\n  '.m4a',\r\n  '.m4v',\r\n  '.mp4'\r\n]\r\n\r\ntype RenderMediaOptions = {\r\n  controls: boolean\r\n  autoplay: boolean\r\n}\r\n\r\nfunction renderVideo (\r\n  file: any,\r\n  elem: HTMLVideoElement,\r\n  opts: RenderMediaOptions,\r\n  callback: (err: Error, renderer: any) => void\r\n) {\r\n  validateFile(file)\r\n\r\n  return renderMedia(file, elem, opts, callback)\r\n}\r\n\r\nfunction renderMedia (file: any, elem: HTMLVideoElement, opts: RenderMediaOptions, callback: (err: Error, renderer?: any) => void) {\r\n  const extension = extname(file.name).toLowerCase()\r\n  let preparedElem: any\r\n  let currentTime = 0\r\n  let renderer: any\r\n\r\n  try {\r\n    if (VIDEOSTREAM_EXTS.indexOf(extension) >= 0) {\r\n      renderer = useVideostream()\r\n    } else {\r\n      renderer = useMediaSource()\r\n    }\r\n  } catch (err) {\r\n    return callback(err)\r\n  }\r\n\r\n  function useVideostream () {\r\n    prepareElem()\r\n\r\n\r\n    preparedElem.addEventListener('error', function onError (err: Error) {\r\n      preparedElem.removeEventListener('error', onError)\r\n\r\n      return callback(err)\r\n    })\r\n\r\n\r\n    preparedElem.addEventListener('loadedmetadata', onLoadStart)\r\n    return new videostream(file, preparedElem)\r\n  }\r\n\r\n  function useMediaSource (useVP9 = false) {\r\n    const codecs = getCodec(file.name, useVP9)\r\n\r\n\r\n    prepareElem()\r\n    preparedElem.addEventListener('error', function onError (err: Error) {\r\n      preparedElem.removeEventListener('error', onError)\r\n\r\n      // Try with vp9 before returning an error\r\n      if (codecs.indexOf('vp8') !== -1) return fallbackToMediaSource(true)\r\n\r\n      return callback(err)\r\n    })\r\n    preparedElem.addEventListener('loadedmetadata', onLoadStart)\r\n\r\n    const wrapper = new MediaElementWrapper(preparedElem)\r\n    const writable = wrapper.createWriteStream(codecs)\r\n    file.createReadStream().pipe(writable)\r\n\r\n    if (currentTime) preparedElem.currentTime = currentTime\r\n\r\n    return wrapper\r\n  }\r\n\r\n  function fallbackToMediaSource (useVP9 = false) {\r\n    if (useVP9 === true) console.log('Falling back to media source with VP9 enabled.')\r\n    else console.log('Falling back to media source..')\r\n\r\n    useMediaSource(useVP9)\r\n  }\r\n\r\n  function prepareElem () {\r\n    if (preparedElem === undefined) {\r\n      preparedElem = elem\r\n\r\n      preparedElem.addEventListener('progress', function () {\r\n        currentTime = elem.currentTime\r\n      })\r\n    }\r\n  }\r\n\r\n  function onLoadStart () {\r\n    preparedElem.removeEventListener('loadedmetadata', onLoadStart)\r\n\r\n\r\n    if (opts.autoplay) preparedElem.play()\r\n\r\n    callback(null, renderer)\r\n  }\r\n}\r\n\r\nfunction validateFile (file: any) {\r\n  if (file == null) {\r\n    throw new Error('file cannot be null or undefined')\r\n  }\r\n  if (typeof file.name !== 'string') {\r\n    throw new Error('missing or invalid file.name property')\r\n  }\r\n  if (typeof file.createReadStream !== 'function') {\r\n    throw new Error('missing or invalid file.createReadStream property')\r\n  }\r\n}\r\n\r\nfunction getCodec (name: string, useVP9 = false) {\r\n  const ext = extname(name).toLowerCase()\r\n  if (ext === '.mp4') {\r\n    return 'video/mp4; codecs=\"avc1.640029, mp4a.40.5\"'\r\n  }\r\n\r\n  if (ext === '.webm') {\r\n    if (useVP9 === true) return 'video/webm; codecs=\"vp9, opus\"'\r\n\r\n    return 'video/webm; codecs=\"vp8, vorbis\"'\r\n  }\r\n\r\n  return undefined\r\n}\r\n\r\nexport {\r\n  renderVideo\r\n}\r\n","import videojs from 'video.js'\r\nimport * as WebTorrent from 'webtorrent'\r\nimport { renderVideo } from './video-renderer'\r\nimport { LoadedQualityData, PlayerNetworkInfo, WebtorrentPluginOptions } from '../peertube-videojs-typings'\r\nimport { getRtcConfig, timeToInt, videoFileMaxByResolution, videoFileMinByResolution, isIOS, isSafari } from '../utils'\r\nimport { PeertubeChunkStore } from './peertube-chunk-store'\r\nimport {\r\n  getAverageBandwidthInStore,\r\n  getStoredMute,\r\n  getStoredP2PEnabled,\r\n  getStoredVolume,\r\n  saveAverageBandwidth\r\n} from '../peertube-player-local-storage'\r\nimport { VideoFile } from '@shared/models'\r\n\r\nconst CacheChunkStore = require('cache-chunk-store')\r\n\r\ntype PlayOptions = {\r\n  forcePlay?: boolean,\r\n  seek?: number,\r\n  delay?: number\r\n}\r\n\r\nconst Plugin = videojs.getPlugin('plugin')\r\n\r\nclass WebTorrentPlugin extends Plugin {\r\n  readonly videoFiles: VideoFile[]\r\n\r\n  private readonly playerElement: HTMLVideoElement\r\n\r\n  private readonly autoplay: boolean = false\r\n  private readonly startTime: number = 0\r\n  private readonly savePlayerSrcFunction: videojs.Player['src']\r\n  private readonly videoDuration: number\r\n  private readonly CONSTANTS = {\r\n    INFO_SCHEDULER: 1000, // Don't change this\r\n    AUTO_QUALITY_SCHEDULER: 3000, // Check quality every 3 seconds\r\n    AUTO_QUALITY_THRESHOLD_PERCENT: 30, // Bandwidth should be 30% more important than a resolution bitrate to change to it\r\n    AUTO_QUALITY_OBSERVATION_TIME: 10000, // Wait 10 seconds after having change the resolution before another check\r\n    AUTO_QUALITY_HIGHER_RESOLUTION_DELAY: 5000, // Buffering higher resolution during 5 seconds\r\n    BANDWIDTH_AVERAGE_NUMBER_OF_VALUES: 5 // Last 5 seconds to build average bandwidth\r\n  }\r\n\r\n  private readonly webtorrent = new WebTorrent({\r\n    tracker: {\r\n      rtcConfig: getRtcConfig()\r\n    },\r\n    dht: false\r\n  })\r\n\r\n  private currentVideoFile: VideoFile\r\n  private torrent: WebTorrent.Torrent\r\n\r\n  private renderer: any\r\n  private fakeRenderer: any\r\n  private destroyingFakeRenderer = false\r\n\r\n  private autoResolution = true\r\n  private autoResolutionPossible = true\r\n  private isAutoResolutionObservation = false\r\n  private playerRefusedP2P = false\r\n\r\n  private torrentInfoInterval: any\r\n  private autoQualityInterval: any\r\n  private addTorrentDelay: any\r\n  private qualityObservationTimer: any\r\n  private runAutoQualitySchedulerTimer: any\r\n\r\n  private downloadSpeeds: number[] = []\r\n\r\n  constructor (player: videojs.Player, options?: WebtorrentPluginOptions) {\r\n    super(player)\r\n\r\n    this.startTime = timeToInt(options.startTime)\r\n\r\n    // Disable auto play on iOS\r\n    this.autoplay = options.autoplay\r\n    this.playerRefusedP2P = !getStoredP2PEnabled()\r\n\r\n    this.videoFiles = options.videoFiles\r\n    this.videoDuration = options.videoDuration\r\n\r\n    this.savePlayerSrcFunction = this.player.src\r\n    this.playerElement = options.playerElement\r\n\r\n    this.player.ready(() => {\r\n      const playerOptions = this.player.options_\r\n\r\n      /*const volume = getStoredVolume()\r\n      if (volume !== undefined) this.player.volume(volume)\r\n\r\n      const muted = playerOptions.muted !== undefined ? playerOptions.muted : getStoredMute()\r\n      if (muted !== undefined) this.player.muted(muted)*/\r\n\r\n      this.player.duration(options.videoDuration)\r\n\r\n      this.initializePlayer()\r\n      this.runTorrentInfoScheduler()\r\n\r\n      this.player.one('play', () => {\r\n        // Don't run immediately scheduler, wait some seconds the TCP connections are made\r\n        this.runAutoQualitySchedulerTimer = setTimeout(() => this.runAutoQualityScheduler(), this.CONSTANTS.AUTO_QUALITY_SCHEDULER)\r\n      })\r\n    })\r\n  }\r\n\r\n  dispose () {\r\n    clearTimeout(this.addTorrentDelay)\r\n    clearTimeout(this.qualityObservationTimer)\r\n    clearTimeout(this.runAutoQualitySchedulerTimer)\r\n\r\n    clearInterval(this.torrentInfoInterval)\r\n    clearInterval(this.autoQualityInterval)\r\n\r\n    // Don't need to destroy renderer, video player will be destroyed\r\n    this.flushVideoFile(this.currentVideoFile, false)\r\n\r\n    this.destroyFakeRenderer()\r\n  }\r\n\r\n  getCurrentResolutionId () {\r\n    return this.currentVideoFile ? this.currentVideoFile.resolution.id : -1\r\n  }\r\n\r\n  updateVideoFile (\r\n    videoFile?: VideoFile,\r\n    options: {\r\n      forcePlay?: boolean,\r\n      seek?: number,\r\n      delay?: number\r\n    } = {},\r\n    done: () => void = () => { /* empty */ }\r\n  ) {\r\n    // Automatically choose the adapted video file\r\n    if (!videoFile) {\r\n      const savedAverageBandwidth = getAverageBandwidthInStore()\r\n      videoFile = savedAverageBandwidth\r\n        ? this.getAppropriateFile(savedAverageBandwidth)\r\n        : this.pickAverageVideoFile()\r\n    }\r\n\r\n    if (!videoFile) {\r\n      \r\n      throw Error(`Can't update video file since videoFile is undefined.`)\r\n\r\n      /*\r\n\r\n      const error: { message: string, code?: number } = {\r\n        message: \"Can't update video file since videoFile is undefined.\"\r\n      }\r\n\r\n      this.player.tech(true).error = () => error as any\r\n      this.player.tech(true).trigger('error')\r\n\r\n      return\r\n\r\n\r\n      */\r\n    }\r\n\r\n    // Don't add the same video file once again\r\n    if (this.currentVideoFile !== undefined && this.currentVideoFile.magnetUri === videoFile.magnetUri) {\r\n      return\r\n    }\r\n\r\n    // Do not display error to user because we will have multiple fallback\r\n    this.disableErrorDisplay();\r\n\r\n    // Hack to \"simulate\" src link in video.js >= 6\r\n    // Without this, we can't play the video after pausing it\r\n    // https://github.com/videojs/video.js/blob/master/src/js/player.js#L1633\r\n    (this.player as any).src = () => true\r\n    const oldPlaybackRate = this.player.playbackRate()\r\n\r\n    const previousVideoFile = this.currentVideoFile\r\n    this.currentVideoFile = videoFile\r\n\r\n    // Don't try on iOS that does not support MediaSource\r\n    // Or don't use P2P if webtorrent is disabled\r\n    if (isIOS() || this.playerRefusedP2P) {\r\n      return this.fallbackToHttp(options, () => {\r\n        this.player.playbackRate(oldPlaybackRate)\r\n        return done()\r\n      })\r\n    }\r\n\r\n\r\n    this.addTorrent(this.currentVideoFile.magnetUri, previousVideoFile, options, () => {\r\n      this.player.playbackRate(oldPlaybackRate)\r\n      return done()\r\n    })\r\n\r\n    this.changeQuality()\r\n    this.trigger('resolutionChange', { auto: this.autoResolution, resolutionId: this.currentVideoFile.resolution.id })\r\n  }\r\n\r\n  updateResolution (resolutionId: number, delay = 0) {\r\n    // Remember player state\r\n    const currentTime = this.player.currentTime()\r\n    const isPaused = this.player.paused()\r\n\r\n    // Hide bigPlayButton\r\n    if (!isPaused) {\r\n      this.player.bigPlayButton.hide()\r\n    }\r\n\r\n    // Audio-only (resolutionId === 0) gets special treatment\r\n    if (resolutionId === 0) {\r\n      // Audio-only: show poster, do not auto-hide controls\r\n      this.player.addClass('vjs-playing-audio-only-content')\r\n      this.player.posterImage.show()\r\n    } else {\r\n      // Hide poster to have black background\r\n      this.player.removeClass('vjs-playing-audio-only-content')\r\n      this.player.posterImage.hide()\r\n    }\r\n\r\n    const newVideoFile = this.videoFiles.find(f => f.resolution.id === resolutionId)\r\n    const options = {\r\n      forcePlay: false,\r\n      delay,\r\n      seek: currentTime + (delay / 1000)\r\n    }\r\n\r\n    this.updateVideoFile(newVideoFile, options)\r\n  }\r\n\r\n  flushVideoFile (videoFile: VideoFile, destroyRenderer = true) {\r\n    if (videoFile !== undefined && this.webtorrent.get(videoFile.magnetUri)) {\r\n      if (destroyRenderer === true && this.renderer && this.renderer.destroy) this.renderer.destroy()\r\n\r\n      this.webtorrent.remove(videoFile.magnetUri)\r\n    }\r\n  }\r\n\r\n  enableAutoResolution () {\r\n    this.autoResolution = true\r\n    this.trigger('resolutionChange', { auto: this.autoResolution, resolutionId: this.getCurrentResolutionId() })\r\n  }\r\n\r\n  disableAutoResolution (forbid = false) {\r\n    if (forbid === true) this.autoResolutionPossible = false\r\n\r\n    this.autoResolution = false\r\n    this.trigger('autoResolutionChange', { possible: this.autoResolutionPossible })\r\n    this.trigger('resolutionChange', { auto: this.autoResolution, resolutionId: this.getCurrentResolutionId() })\r\n  }\r\n\r\n  isAutoResolutionPossible () {\r\n    return this.autoResolutionPossible\r\n  }\r\n\r\n  getTorrent () {\r\n    return this.torrent\r\n  }\r\n\r\n  getCurrentVideoFile () {\r\n    return this.currentVideoFile\r\n  }\r\n\r\n  private addTorrent (\r\n    magnetOrTorrentUrl: string,\r\n    previousVideoFile: VideoFile,\r\n    options: PlayOptions,\r\n    done: Function\r\n  ) {\r\n    if (!magnetOrTorrentUrl) return this.fallbackToHttp(options, done)\r\n\r\n    const oldTorrent = this.torrent\r\n    const torrentOptions = {\r\n      // Don't use arrow function: it breaks webtorrent (that uses `new` keyword)\r\n      store: function (chunkLength: number, storeOpts: any) {\r\n        return new CacheChunkStore(new PeertubeChunkStore(chunkLength, storeOpts), {\r\n          max: 100\r\n        })\r\n      }\r\n    }\r\n\r\n    this.torrent = this.webtorrent.add(magnetOrTorrentUrl, torrentOptions, torrent => {\r\n      if (oldTorrent) {\r\n        // Pause the old torrent\r\n        this.stopTorrent(oldTorrent)\r\n\r\n        // We use a fake renderer so we download correct pieces of the next file\r\n        if(options.delay) \r\n          this.renderFileInFakeElement(torrent.files[ 0 ], options.delay)\r\n      }\r\n\r\n      // Render the video in a few seconds? (on resolution change for example, we wait some seconds of the new video resolution)\r\n      this.addTorrentDelay = setTimeout(() => {\r\n\r\n        // We don't need the fake renderer anymore\r\n        this.destroyFakeRenderer()\r\n\r\n        const paused = this.player.paused()\r\n\r\n        this.flushVideoFile(previousVideoFile)\r\n\r\n        // Update progress bar (just for the UI), do not wait rendering\r\n        if (options.seek) this.player.currentTime(options.seek)\r\n\r\n        const renderVideoOptions = { autoplay: false, controls: true }\r\n        renderVideo(torrent.files[ 0 ], this.playerElement, renderVideoOptions, (err, renderer) => {\r\n          this.renderer = renderer\r\n\r\n          if (err) return this.fallbackToHttp(options, done)\r\n\r\n          //this.playerElement.play()\r\n\r\n          setTimeout(() => {\r\n            return this.tryToPlay(err => {\r\n\r\n              if (err) return done(err)\r\n  \r\n              if (options.seek) this.seek(options.seek)\r\n              if (options.forcePlay === false && paused === true) this.player.pause()\r\n  \r\n              return done()\r\n            })\r\n          }, 10)\r\n         \r\n        })\r\n      }, options.delay || 0)\r\n    })\r\n\r\n    this.torrent.on('error', (err: any) => console.error(err))\r\n\r\n    this.torrent.on('warning', (err: any) => {\r\n\r\n      //// TEMP, TO DO\r\n\r\n      /*if (err.message.indexOf('Error connecting to wss') !== -1 || err.message.indexOf('Unsupported tracker protocol') !== -1) {\r\n        this.fallbackToHttp(options, done)\r\n        return\r\n      }*/\r\n\r\n      // We don't support HTTP tracker but we don't care -> we use the web socket tracker\r\n      if (err.message.indexOf('Unsupported tracker protocol') !== -1) return\r\n\r\n      // Users don't care about issues with WebRTC, but developers do so log it in the console\r\n      if (err.message.indexOf('Ice connection failed') !== -1) {\r\n        console.log(err)\r\n        return\r\n      }\r\n\r\n      // Magnet hash is not up to date with the torrent file, add directly the torrent file\r\n      if (err.message.indexOf('incorrect info hash') !== -1) {\r\n        console.error('Incorrect info hash detected, falling back to torrent file.')\r\n        const newOptions = { forcePlay: true, seek: options.seek }\r\n        return this.addTorrent(this.torrent[ 'xs' ], previousVideoFile, newOptions, done)\r\n      }\r\n\r\n      // Remote instance is down\r\n      if (err.message.indexOf('from xs param') !== -1) {\r\n        this.handleError(err)\r\n      }\r\n\r\n    })\r\n  }\r\n\r\n  private tryToPlay (done?: (err?: Error) => void) {\r\n\r\n    if (!done) done = function () {}\r\n\r\n    const playPromise = this.player.play()\r\n\r\n    if (playPromise !== undefined) {\r\n\r\n      return playPromise.then(() => done()).catch((err: Error) => {\r\n          if (err.message.indexOf('The play() request') !== -1) {\r\n            return\r\n          }\r\n\r\n          console.log(\"PAUSE\")\r\n          this.player.pause()\r\n          this.player.posterImage.show()\r\n          this.player.removeClass('vjs-has-autoplay')\r\n          this.player.removeClass('vjs-has-big-play-button-clicked')\r\n          this.player.removeClass('vjs-playing-audio-only-content')\r\n\r\n          return done()\r\n        })\r\n    }\r\n\r\n    return done()\r\n\r\n    \r\n  }\r\n\r\n  private seek (time: number) {\r\n    this.player.currentTime(time)\r\n    this.player.handleTechSeeked_()\r\n  }\r\n\r\n  private getAppropriateFile (averageDownloadSpeed?: number): VideoFile {\r\n    if (this.videoFiles === undefined) return undefined\r\n\r\n    const files = this.videoFiles.filter(f => f.resolution.id !== 0)\r\n\r\n    if (files.length === 0) return undefined\r\n    if (files.length === 1) return files[0]\r\n\r\n    // Don't change the torrent if the player ended\r\n    if (this.torrent && this.torrent.progress === 1 && this.player.ended()) return this.currentVideoFile\r\n\r\n    if (!averageDownloadSpeed) averageDownloadSpeed = this.getAndSaveActualDownloadSpeed()\r\n\r\n    // Limit resolution according to player height\r\n    const playerHeight = this.playerElement.offsetHeight\r\n\r\n    // We take the first resolution just above the player height\r\n    // Example: player height is 530px, we want the 720p file instead of 480p\r\n    let maxResolution = files[0].resolution.id\r\n    for (let i = files.length - 1; i >= 0; i--) {\r\n      const resolutionId = files[i].resolution.id\r\n      if (resolutionId !== 0 && resolutionId >= playerHeight) {\r\n        maxResolution = resolutionId\r\n        break\r\n      }\r\n    }\r\n\r\n    // Filter videos we can play according to our screen resolution and bandwidth\r\n    const filteredFiles = files.filter(f => f.resolution.id <= maxResolution)\r\n                               .filter(f => {\r\n                                 const fileBitrate = (f.size / this.videoDuration)\r\n                                 let threshold = fileBitrate\r\n\r\n                                 // If this is for a higher resolution or an initial load: add a margin\r\n                                 if (!this.currentVideoFile || f.resolution.id > this.currentVideoFile.resolution.id) {\r\n                                   threshold += ((fileBitrate * this.CONSTANTS.AUTO_QUALITY_THRESHOLD_PERCENT) / 100)\r\n                                 }\r\n\r\n                                 return averageDownloadSpeed > threshold\r\n                               })\r\n\r\n    // If the download speed is too bad, return the lowest resolution we have\r\n    if (filteredFiles.length === 0) return videoFileMinByResolution(files)\r\n\r\n    return videoFileMaxByResolution(filteredFiles)\r\n  }\r\n\r\n  private getAndSaveActualDownloadSpeed () {\r\n    const start = Math.max(this.downloadSpeeds.length - this.CONSTANTS.BANDWIDTH_AVERAGE_NUMBER_OF_VALUES, 0)\r\n    const lastDownloadSpeeds = this.downloadSpeeds.slice(start, this.downloadSpeeds.length)\r\n    if (lastDownloadSpeeds.length === 0) return -1\r\n\r\n    const sum = lastDownloadSpeeds.reduce((a, b) => a + b)\r\n    const averageBandwidth = Math.round(sum / lastDownloadSpeeds.length)\r\n\r\n    // Save the average bandwidth for future use\r\n    saveAverageBandwidth(averageBandwidth)\r\n\r\n    return averageBandwidth\r\n  }\r\n\r\n  private initializePlayer () {\r\n    this.buildQualities()\r\n\r\n    if (this.autoplay) {\r\n      this.player.posterImage.hide()\r\n\r\n      return this.updateVideoFile(undefined, { forcePlay: true, seek: this.startTime })\r\n    }\r\n\r\n    // Proxy first play\r\n    const oldPlay = this.player.play.bind(this.player);\r\n    (this.player as any).play = () => {\r\n      this.player.addClass('vjs-has-big-play-button-clicked')\r\n      this.player.play = oldPlay\r\n\r\n      this.updateVideoFile(undefined, { forcePlay: true, seek: this.startTime })\r\n    }\r\n  }\r\n\r\n  private runAutoQualityScheduler () {\r\n    this.autoQualityInterval = setInterval(() => {\r\n\r\n      // Not initialized or in HTTP fallback\r\n      if (this.torrent === undefined || this.torrent === null) return\r\n      if (this.autoResolution === false) return\r\n      if (this.isAutoResolutionObservation === true) return\r\n\r\n      const file = this.getAppropriateFile()\r\n      let changeResolution = false\r\n      let changeResolutionDelay = 0\r\n\r\n      // Lower resolution\r\n      if (this.isPlayerWaiting() && file.resolution.id < this.currentVideoFile.resolution.id) {\r\n        changeResolution = true\r\n      } else if (file.resolution.id > this.currentVideoFile.resolution.id) { // Higher resolution\r\n        changeResolution = true\r\n        changeResolutionDelay = this.CONSTANTS.AUTO_QUALITY_HIGHER_RESOLUTION_DELAY\r\n      }\r\n\r\n      if (changeResolution === true) {\r\n        this.updateResolution(file.resolution.id, changeResolutionDelay)\r\n\r\n        // Wait some seconds in observation of our new resolution\r\n        this.isAutoResolutionObservation = true\r\n\r\n        this.qualityObservationTimer = setTimeout(() => {\r\n          this.isAutoResolutionObservation = false\r\n        }, this.CONSTANTS.AUTO_QUALITY_OBSERVATION_TIME)\r\n      }\r\n    }, this.CONSTANTS.AUTO_QUALITY_SCHEDULER)\r\n  }\r\n\r\n  private isPlayerWaiting () {\r\n    return this.player && this.player.hasClass('vjs-waiting')\r\n  }\r\n\r\n  private runTorrentInfoScheduler () {\r\n    this.torrentInfoInterval = setInterval(() => {\r\n      \r\n\r\n      // Not initialized yet\r\n      if (this.torrent === undefined) return\r\n\r\n      // Http fallback\r\n      if (this.torrent === null) return this.player.trigger('p2pInfo', false)\r\n\r\n      // this.webtorrent.downloadSpeed because we need to take into account the potential old torrent too\r\n      if (this.webtorrent.downloadSpeed !== 0) this.downloadSpeeds.push(this.webtorrent.downloadSpeed)\r\n\r\n    \r\n\r\n      return this.player.trigger('p2pInfo', {\r\n        source: 'webtorrent',\r\n        http: {\r\n          downloadSpeed: 0,\r\n          uploadSpeed: 0,\r\n          downloaded: 0,\r\n          uploaded: 0\r\n        },\r\n        p2p: {\r\n          downloadSpeed: this.torrent.downloadSpeed,\r\n          numPeers: this.torrent.numPeers,\r\n          uploadSpeed: this.torrent.uploadSpeed,\r\n          downloaded: this.torrent.downloaded,\r\n          uploaded: this.torrent.uploaded\r\n        }\r\n      } as PlayerNetworkInfo)\r\n    }, this.CONSTANTS.INFO_SCHEDULER)\r\n  }\r\n\r\n  private fallbackToHttp (options: PlayOptions, done?: Function) {\r\n\r\n\r\n    const paused = this.player.paused()\r\n\r\n    this.disableAutoResolution(true)\r\n\r\n    this.flushVideoFile(this.currentVideoFile, true)\r\n    this.torrent = null\r\n\r\n    // Enable error display now this is our last fallback\r\n    this.player.one('error', () => this.enableErrorDisplay())\r\n\r\n    const httpUrl = this.currentVideoFile.fileUrl\r\n    this.player.src = this.savePlayerSrcFunction\r\n    this.player.src(httpUrl)\r\n\r\n    this.changeQuality()\r\n\r\n    // We changed the source, so reinit captions\r\n    this.player.trigger('sourcechange')\r\n\r\n    return this.tryToPlay(err => {\r\n\r\n      if (err && done) return done(err)\r\n\r\n      if (options.seek) this.seek(options.seek)\r\n      if (options.forcePlay === false && paused === true) {\r\n        console.log(\"PLAUSE\")\r\n        this.player.pause()\r\n      }\r\n\r\n      if (done) return done()\r\n    })\r\n  }\r\n\r\n  private handleError (err: Error | string) {\r\n    return this.player.trigger('customError', { err })\r\n  }\r\n\r\n  private enableErrorDisplay () {\r\n    this.player.addClass('vjs-error-display-enabled')\r\n  }\r\n\r\n  private disableErrorDisplay () {\r\n    this.player.removeClass('vjs-error-display-enabled')\r\n  }\r\n\r\n  private pickAverageVideoFile () {\r\n    if (this.videoFiles.length === 1) return this.videoFiles[0]\r\n\r\n    return this.videoFiles[Math.floor(this.videoFiles.length / 2)]\r\n  }\r\n\r\n  private stopTorrent (torrent: WebTorrent.Torrent) {\r\n    torrent.pause()\r\n    // Pause does not remove actual peers (in particular the webseed peer)\r\n    torrent.removePeer(torrent[ 'ws' ])\r\n  }\r\n\r\n  private renderFileInFakeElement (file: WebTorrent.TorrentFile, delay: number) {\r\n    this.destroyingFakeRenderer = false\r\n\r\n    const fakeVideoElem = document.createElement('video')\r\n    renderVideo(file, fakeVideoElem, { autoplay: false, controls: false }, (err, renderer) => {\r\n      this.fakeRenderer = renderer\r\n\r\n      // The renderer returns an error when we destroy it, so skip them\r\n      if (this.destroyingFakeRenderer === false && err) {\r\n        console.error('Cannot render new torrent in fake video element.', err)\r\n      }\r\n\r\n      // Load the future file at the correct time (in delay MS - 2 seconds)\r\n      fakeVideoElem.currentTime = this.player.currentTime() + (delay - 2000)\r\n    })\r\n  }\r\n\r\n  private destroyFakeRenderer () {\r\n    if (this.fakeRenderer) {\r\n      this.destroyingFakeRenderer = true\r\n\r\n      if (this.fakeRenderer.destroy) {\r\n        try {\r\n          this.fakeRenderer.destroy()\r\n        } catch (err) {\r\n          console.log('Cannot destroy correctly fake renderer.', err)\r\n        }\r\n      }\r\n      this.fakeRenderer = undefined\r\n    }\r\n  }\r\n\r\n  private buildQualities () {\r\n    const qualityLevelsPayload = []\r\n\r\n    for (const file of this.videoFiles) {\r\n      const representation = {\r\n        id: file.resolution.id,\r\n        label: this.buildQualityLabel(file),\r\n        height: file.resolution.id,\r\n        _enabled: true\r\n      }\r\n\r\n      this.player.qualityLevels().addQualityLevel(representation)\r\n\r\n      qualityLevelsPayload.push({\r\n        id: representation.id,\r\n        label: representation.label,\r\n        selected: false\r\n      })\r\n    }\r\n\r\n    const payload: LoadedQualityData = {\r\n      qualitySwitchCallback: (d: any) => this.qualitySwitchCallback(d),\r\n      qualityData: {\r\n        video: qualityLevelsPayload\r\n      }\r\n    }\r\n    this.player.tech(true).trigger('loadedqualitydata', payload)\r\n  }\r\n\r\n  private buildQualityLabel (file: VideoFile) {\r\n    let label = file.resolution.label\r\n\r\n    if (file.fps && file.fps >= 50) {\r\n      label += file.fps\r\n    }\r\n\r\n    return label\r\n  }\r\n\r\n  private qualitySwitchCallback (id: number) {\r\n    if (id === -1) {\r\n      if (this.autoResolutionPossible === true) this.enableAutoResolution()\r\n      return\r\n    }\r\n\r\n    this.disableAutoResolution()\r\n    this.updateResolution(id)\r\n  }\r\n\r\n  private changeQuality () {\r\n    const resolutionId = this.currentVideoFile.resolution.id\r\n    const qualityLevels = this.player.qualityLevels()\r\n\r\n    if (resolutionId === -1) {\r\n      qualityLevels.selectedIndex = -1\r\n      return\r\n    }\r\n\r\n    for (let i = 0; i < qualityLevels.length; i++) {\r\n      const q = qualityLevels[i]\r\n      if (q.height === resolutionId) qualityLevels.selectedIndex_ = i\r\n    }\r\n  }\r\n}\r\n\r\nvideojs.registerPlugin('webtorrent', WebTorrentPlugin)\r\nexport { WebTorrentPlugin }\r\n","/* (ignored) */","/* (ignored) */","/* (ignored) */","/* (ignored) */","/* (ignored) */","/* (ignored) */","/* (ignored) */","/* (ignored) */","/* (ignored) */","/* (ignored) */","/* (ignored) */","/* (ignored) */","/* (ignored) */","/* (ignored) */","/* (ignored) */","/* (ignored) */","/* (ignored) */","/* (ignored) */","/* (ignored) */","/* (ignored) */","/* (ignored) */","/* (ignored) */","/* (ignored) */","/* (ignored) */","/* (ignored) */","/* (ignored) */","/* (ignored) */","/* (ignored) */","/* (ignored) */","/* (ignored) */","/* (ignored) */","/* (ignored) */","/* 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