client/src/assets/player/webtorrent/webtorrent-plugin.ts

   1 import videojs from 'video.js'
   2 import * as WebTorrent from 'webtorrent'
   3 import { timeToInt } from '@shared/core-utils'
   4 import { VideoFile } from '@shared/models'
   5 import {
   6   getAverageBandwidthInStore,
   7   getStoredMute,
   8   getStoredP2PEnabled,
   9   getStoredVolume,
  10   saveAverageBandwidth
  11 } from '../peertube-player-local-storage'
  12 import { LoadedQualityData, PlayerNetworkInfo, WebtorrentPluginOptions } from '../peertube-videojs-typings'
  13 import { getRtcConfig, isIOS, videoFileMaxByResolution, videoFileMinByResolution } from '../utils'
  14 import { PeertubeChunkStore } from './peertube-chunk-store'
  15 import { renderVideo } from './video-renderer'
  16
  17 const CacheChunkStore = require('cache-chunk-store')
  18
  19 type PlayOptions = {
  20   forcePlay?: boolean
  21   seek?: number
  22   delay?: number
  23 }
  24
  25 const Plugin = videojs.getPlugin('plugin')
  26
  27 class WebTorrentPlugin extends Plugin {
  28   readonly videoFiles: VideoFile[]
  29
  30   private readonly playerElement: HTMLVideoElement
  31
  32   private readonly autoplay: boolean = false
  33   private readonly startTime: number = 0
  34   private readonly savePlayerSrcFunction: videojs.Player['src']
  35   private readonly videoDuration: number
  36   private readonly CONSTANTS = {
  37     INFO_SCHEDULER: 1000, // Don't change this
  38     AUTO_QUALITY_SCHEDULER: 3000, // Check quality every 3 seconds
  39     AUTO_QUALITY_THRESHOLD_PERCENT: 30, // Bandwidth should be 30% more important than a resolution bitrate to change to it
  40     AUTO_QUALITY_OBSERVATION_TIME: 10000, // Wait 10 seconds after having change the resolution before another check
  41     AUTO_QUALITY_HIGHER_RESOLUTION_DELAY: 5000, // Buffering higher resolution during 5 seconds
  42     BANDWIDTH_AVERAGE_NUMBER_OF_VALUES: 5 // Last 5 seconds to build average bandwidth
  43   }
  44
  45   private readonly webtorrent = new WebTorrent({
  46     tracker: {
  47       rtcConfig: getRtcConfig()
  48     },
  49     dht: false
  50   })
  51
  52   private currentVideoFile: VideoFile
  53   private torrent: WebTorrent.Torrent
  54
  55   private renderer: any
  56   private fakeRenderer: any
  57   private destroyingFakeRenderer = false
  58
  59   private autoResolution = true
  60   private autoResolutionPossible = true
  61   private isAutoResolutionObservation = false
  62   private playerRefusedP2P = false
  63
  64   private torrentInfoInterval: any
  65   private autoQualityInterval: any
  66   private addTorrentDelay: any
  67   private qualityObservationTimer: any
  68   private runAutoQualitySchedulerTimer: any
  69
  70   private downloadSpeeds: number[] = []
  71
  72   constructor (player: videojs.Player, options?: WebtorrentPluginOptions) {
  73     super(player)
  74
  75     this.startTime = timeToInt(options.startTime)
  76
  77     // Disable auto play on iOS
  78     this.autoplay = options.autoplay
  79     this.playerRefusedP2P = !getStoredP2PEnabled()
  80
  81     this.videoFiles = options.videoFiles
  82     this.videoDuration = options.videoDuration
  83
  84     this.savePlayerSrcFunction = this.player.src
  85     this.playerElement = options.playerElement
  86
  87     this.player.ready(() => {
  88       const playerOptions = this.player.options_
  89
  90       const volume = getStoredVolume()
  91       if (volume !== undefined) this.player.volume(volume)
  92
  93       const muted = playerOptions.muted !== undefined ? playerOptions.muted : getStoredMute()
  94       if (muted !== undefined) this.player.muted(muted)
  95
  96       this.player.duration(options.videoDuration)
  97
  98       this.initializePlayer()
  99       this.runTorrentInfoScheduler()
 100
 101       this.player.one('play', () => {
 102         // Don't run immediately scheduler, wait some seconds the TCP connections are made
 103         this.runAutoQualitySchedulerTimer = setTimeout(() => this.runAutoQualityScheduler(), this.CONSTANTS.AUTO_QUALITY_SCHEDULER)
 104       })
 105     })
 106   }
 107
 108   dispose () {
 109     clearTimeout(this.addTorrentDelay)
 110     clearTimeout(this.qualityObservationTimer)
 111     clearTimeout(this.runAutoQualitySchedulerTimer)
 112
 113     clearInterval(this.torrentInfoInterval)
 114     clearInterval(this.autoQualityInterval)
 115
 116     // Don't need to destroy renderer, video player will be destroyed
 117     this.flushVideoFile(this.currentVideoFile, false)
 118
 119     this.destroyFakeRenderer()
 120   }
 121
 122   getCurrentResolutionId () {
 123     return this.currentVideoFile ? this.currentVideoFile.resolution.id : -1
 124   }
 125
 126   updateVideoFile (
 127     videoFile?: VideoFile,
 128     options: {
 129       forcePlay?: boolean
 130       seek?: number
 131       delay?: number
 132     } = {},
 133     done: () => void = () => { /* empty */ }
 134   ) {
 135     // Automatically choose the adapted video file
 136     if (!videoFile) {
 137       const savedAverageBandwidth = getAverageBandwidthInStore()
 138       videoFile = savedAverageBandwidth
 139         ? this.getAppropriateFile(savedAverageBandwidth)
 140         : this.pickAverageVideoFile()
 141     }
 142
 143     if (!videoFile) {
 144       throw Error(`Can't update video file since videoFile is undefined.`)
 145     }
 146
 147     // Don't add the same video file once again
 148     if (this.currentVideoFile !== undefined && this.currentVideoFile.magnetUri === videoFile.magnetUri) {
 149       return
 150     }
 151
 152     // Do not display error to user because we will have multiple fallback
 153     this.disableErrorDisplay();
 154
 155     // Hack to "simulate" src link in video.js >= 6
 156     // Without this, we can't play the video after pausing it
 157     // https://github.com/videojs/video.js/blob/master/src/js/player.js#L1633
 158     (this.player as any).src = () => true
 159     const oldPlaybackRate = this.player.playbackRate()
 160
 161     const previousVideoFile = this.currentVideoFile
 162     this.currentVideoFile = videoFile
 163
 164     // Don't try on iOS that does not support MediaSource
 165     // Or don't use P2P if webtorrent is disabled
 166     if (isIOS() || this.playerRefusedP2P) {
 167       return this.fallbackToHttp(options, () => {
 168         this.player.playbackRate(oldPlaybackRate)
 169         return done()
 170       })
 171     }
 172
 173     this.addTorrent(this.currentVideoFile.magnetUri, previousVideoFile, options, () => {
 174       this.player.playbackRate(oldPlaybackRate)
 175       return done()
 176     })
 177
 178     this.changeQuality()
 179     this.trigger('resolutionChange', { auto: this.autoResolution, resolutionId: this.currentVideoFile.resolution.id })
 180   }
 181
 182   updateResolution (resolutionId: number, delay = 0) {
 183     // Remember player state
 184     const currentTime = this.player.currentTime()
 185     const isPaused = this.player.paused()
 186
 187     // Hide bigPlayButton
 188     if (!isPaused) {
 189       this.player.bigPlayButton.hide()
 190     }
 191
 192     // Audio-only (resolutionId === 0) gets special treatment
 193     if (resolutionId === 0) {
 194       // Audio-only: show poster, do not auto-hide controls
 195       this.player.addClass('vjs-playing-audio-only-content')
 196       this.player.posterImage.show()
 197     } else {
 198       // Hide poster to have black background
 199       this.player.removeClass('vjs-playing-audio-only-content')
 200       this.player.posterImage.hide()
 201     }
 202
 203     const newVideoFile = this.videoFiles.find(f => f.resolution.id === resolutionId)
 204     const options = {
 205       forcePlay: false,
 206       delay,
 207       seek: currentTime + (delay / 1000)
 208     }
 209
 210     this.updateVideoFile(newVideoFile, options)
 211   }
 212
 213   flushVideoFile (videoFile: VideoFile, destroyRenderer = true) {
 214     if (videoFile !== undefined && this.webtorrent.get(videoFile.magnetUri)) {
 215       if (destroyRenderer === true && this.renderer && this.renderer.destroy) this.renderer.destroy()
 216
 217       this.webtorrent.remove(videoFile.magnetUri)
 218       console.log('Removed ' + videoFile.magnetUri)
 219     }
 220   }
 221
 222   enableAutoResolution () {
 223     this.autoResolution = true
 224     this.trigger('resolutionChange', { auto: this.autoResolution, resolutionId: this.getCurrentResolutionId() })
 225   }
 226
 227   disableAutoResolution (forbid = false) {
 228     if (forbid === true) this.autoResolutionPossible = false
 229
 230     this.autoResolution = false
 231     this.trigger('autoResolutionChange', { possible: this.autoResolutionPossible })
 232     this.trigger('resolutionChange', { auto: this.autoResolution, resolutionId: this.getCurrentResolutionId() })
 233   }
 234
 235   isAutoResolutionPossible () {
 236     return this.autoResolutionPossible
 237   }
 238
 239   getTorrent () {
 240     return this.torrent
 241   }
 242
 243   getCurrentVideoFile () {
 244     return this.currentVideoFile
 245   }
 246
 247   private addTorrent (
 248     magnetOrTorrentUrl: string,
 249     previousVideoFile: VideoFile,
 250     options: PlayOptions,
 251     done: (err?: Error) => void
 252   ) {
 253     if (!magnetOrTorrentUrl) return this.fallbackToHttp(options, done)
 254
 255     console.log('Adding ' + magnetOrTorrentUrl + '.')
 256
 257     const oldTorrent = this.torrent
 258     const torrentOptions = {
 259       // Don't use arrow function: it breaks webtorrent (that uses `new` keyword)
 260       store: function (chunkLength: number, storeOpts: any) {
 261         return new CacheChunkStore(new PeertubeChunkStore(chunkLength, storeOpts), {
 262           max: 100
 263         })
 264       }
 265     }
 266
 267     this.torrent = this.webtorrent.add(magnetOrTorrentUrl, torrentOptions, torrent => {
 268       console.log('Added ' + magnetOrTorrentUrl + '.')
 269
 270       if (oldTorrent) {
 271         // Pause the old torrent
 272         this.stopTorrent(oldTorrent)
 273
 274         // We use a fake renderer so we download correct pieces of the next file
 275         if (options.delay) this.renderFileInFakeElement(torrent.files[0], options.delay)
 276       }
 277
 278       // Render the video in a few seconds? (on resolution change for example, we wait some seconds of the new video resolution)
 279       this.addTorrentDelay = setTimeout(() => {
 280         // We don't need the fake renderer anymore
 281         this.destroyFakeRenderer()
 282
 283         const paused = this.player.paused()
 284
 285         this.flushVideoFile(previousVideoFile)
 286
 287         // Update progress bar (just for the UI), do not wait rendering
 288         if (options.seek) this.player.currentTime(options.seek)
 289
 290         const renderVideoOptions = { autoplay: false, controls: true }
 291         renderVideo(torrent.files[0], this.playerElement, renderVideoOptions, (err, renderer) => {
 292           this.renderer = renderer
 293
 294           if (err) return this.fallbackToHttp(options, done)
 295
 296           return this.tryToPlay(err => {
 297             if (err) return done(err)
 298
 299             if (options.seek) this.seek(options.seek)
 300             if (options.forcePlay === false && paused === true) this.player.pause()
 301
 302             return done()
 303           })
 304         })
 305       }, options.delay || 0)
 306     })
 307
 308     this.torrent.on('error', (err: any) => console.error(err))
 309
 310     this.torrent.on('warning', (err: any) => {
 311       // We don't support HTTP tracker but we don't care -> we use the web socket tracker
 312       if (err.message.indexOf('Unsupported tracker protocol') !== -1) return
 313
 314       // Users don't care about issues with WebRTC, but developers do so log it in the console
 315       if (err.message.indexOf('Ice connection failed') !== -1) {
 316         console.log(err)
 317         return
 318       }
 319
 320       // Magnet hash is not up to date with the torrent file, add directly the torrent file
 321       if (err.message.indexOf('incorrect info hash') !== -1) {
 322         console.error('Incorrect info hash detected, falling back to torrent file.')
 323         const newOptions = { forcePlay: true, seek: options.seek }
 324         return this.addTorrent(this.torrent['xs'], previousVideoFile, newOptions, done)
 325       }
 326
 327       // Remote instance is down
 328       if (err.message.indexOf('from xs param') !== -1) {
 329         this.handleError(err)
 330       }
 331
 332       console.warn(err)
 333     })
 334   }
 335
 336   private tryToPlay (done?: (err?: Error) => void) {
 337     if (!done) done = function () { /* empty */ }
 338
 339     const playPromise = this.player.play()
 340     if (playPromise !== undefined) {
 341       return playPromise.then(() => done())
 342                         .catch((err: Error) => {
 343                           if (err.message.includes('The play() request was interrupted by a call to pause()')) {
 344                             return
 345                           }
 346
 347                           console.error(err)
 348                           this.player.pause()
 349                           this.player.posterImage.show()
 350                           this.player.removeClass('vjs-has-autoplay')
 351                           this.player.removeClass('vjs-has-big-play-button-clicked')
 352                           this.player.removeClass('vjs-playing-audio-only-content')
 353
 354                           return done()
 355                         })
 356     }
 357
 358     return done()
 359   }
 360
 361   private seek (time: number) {
 362     this.player.currentTime(time)
 363     this.player.handleTechSeeked_()
 364   }
 365
 366   private getAppropriateFile (averageDownloadSpeed?: number): VideoFile {
 367     if (this.videoFiles === undefined) return undefined
 368
 369     const files = this.videoFiles.filter(f => f.resolution.id !== 0)
 370
 371     if (files.length === 0) return undefined
 372     if (files.length === 1) return files[0]
 373
 374     // Don't change the torrent if the player ended
 375     if (this.torrent && this.torrent.progress === 1 && this.player.ended()) return this.currentVideoFile
 376
 377     if (!averageDownloadSpeed) averageDownloadSpeed = this.getAndSaveActualDownloadSpeed()
 378
 379     // Limit resolution according to player height
 380     const playerHeight = this.playerElement.offsetHeight
 381
 382     // We take the first resolution just above the player height
 383     // Example: player height is 530px, we want the 720p file instead of 480p
 384     let maxResolution = files[0].resolution.id
 385     for (let i = files.length - 1; i >= 0; i--) {
 386       const resolutionId = files[i].resolution.id
 387       if (resolutionId !== 0 && resolutionId >= playerHeight) {
 388         maxResolution = resolutionId
 389         break
 390       }
 391     }
 392
 393     // Filter videos we can play according to our screen resolution and bandwidth
 394     const filteredFiles = files.filter(f => f.resolution.id <= maxResolution)
 395                                .filter(f => {
 396                                  const fileBitrate = (f.size / this.videoDuration)
 397                                  let threshold = fileBitrate
 398
 399                                  // If this is for a higher resolution or an initial load: add a margin
 400                                  if (!this.currentVideoFile || f.resolution.id > this.currentVideoFile.resolution.id) {
 401                                    threshold += ((fileBitrate * this.CONSTANTS.AUTO_QUALITY_THRESHOLD_PERCENT) / 100)
 402                                  }
 403
 404                                  return averageDownloadSpeed > threshold
 405                                })
 406
 407     // If the download speed is too bad, return the lowest resolution we have
 408     if (filteredFiles.length === 0) return videoFileMinByResolution(files)
 409
 410     return videoFileMaxByResolution(filteredFiles)
 411   }
 412
 413   private getAndSaveActualDownloadSpeed () {
 414     const start = Math.max(this.downloadSpeeds.length - this.CONSTANTS.BANDWIDTH_AVERAGE_NUMBER_OF_VALUES, 0)
 415     const lastDownloadSpeeds = this.downloadSpeeds.slice(start, this.downloadSpeeds.length)
 416     if (lastDownloadSpeeds.length === 0) return -1
 417
 418     const sum = lastDownloadSpeeds.reduce((a, b) => a + b)
 419     const averageBandwidth = Math.round(sum / lastDownloadSpeeds.length)
 420
 421     // Save the average bandwidth for future use
 422     saveAverageBandwidth(averageBandwidth)
 423
 424     return averageBandwidth
 425   }
 426
 427   private initializePlayer () {
 428     this.buildQualities()
 429
 430     if (this.autoplay) {
 431       this.player.posterImage.hide()
 432
 433       return this.updateVideoFile(undefined, { forcePlay: true, seek: this.startTime })
 434     }
 435
 436     // Proxy first play
 437     const oldPlay = this.player.play.bind(this.player);
 438     (this.player as any).play = () => {
 439       this.player.addClass('vjs-has-big-play-button-clicked')
 440       this.player.play = oldPlay
 441
 442       this.updateVideoFile(undefined, { forcePlay: true, seek: this.startTime })
 443     }
 444   }
 445
 446   private runAutoQualityScheduler () {
 447     this.autoQualityInterval = setInterval(() => {
 448
 449       // Not initialized or in HTTP fallback
 450       if (this.torrent === undefined || this.torrent === null) return
 451       if (this.autoResolution === false) return
 452       if (this.isAutoResolutionObservation === true) return
 453
 454       const file = this.getAppropriateFile()
 455       let changeResolution = false
 456       let changeResolutionDelay = 0
 457
 458       // Lower resolution
 459       if (this.isPlayerWaiting() && file.resolution.id < this.currentVideoFile.resolution.id) {
 460         console.log('Downgrading automatically the resolution to: %s', file.resolution.label)
 461         changeResolution = true
 462       } else if (file.resolution.id > this.currentVideoFile.resolution.id) { // Higher resolution
 463         console.log('Upgrading automatically the resolution to: %s', file.resolution.label)
 464         changeResolution = true
 465         changeResolutionDelay = this.CONSTANTS.AUTO_QUALITY_HIGHER_RESOLUTION_DELAY
 466       }
 467
 468       if (changeResolution === true) {
 469         this.updateResolution(file.resolution.id, changeResolutionDelay)
 470
 471         // Wait some seconds in observation of our new resolution
 472         this.isAutoResolutionObservation = true
 473
 474         this.qualityObservationTimer = setTimeout(() => {
 475           this.isAutoResolutionObservation = false
 476         }, this.CONSTANTS.AUTO_QUALITY_OBSERVATION_TIME)
 477       }
 478     }, this.CONSTANTS.AUTO_QUALITY_SCHEDULER)
 479   }
 480
 481   private isPlayerWaiting () {
 482     return this.player?.hasClass('vjs-waiting')
 483   }
 484
 485   private runTorrentInfoScheduler () {
 486     this.torrentInfoInterval = setInterval(() => {
 487       // Not initialized yet
 488       if (this.torrent === undefined) return
 489
 490       // Http fallback
 491       if (this.torrent === null) return this.player.trigger('p2pInfo', false)
 492
 493       // this.webtorrent.downloadSpeed because we need to take into account the potential old torrent too
 494       if (this.webtorrent.downloadSpeed !== 0) this.downloadSpeeds.push(this.webtorrent.downloadSpeed)
 495
 496       return this.player.trigger('p2pInfo', {
 497         source: 'webtorrent',
 498         http: {
 499           downloadSpeed: 0,
 500           uploadSpeed: 0,
 501           downloaded: 0,
 502           uploaded: 0
 503         },
 504         p2p: {
 505           downloadSpeed: this.torrent.downloadSpeed,
 506           numPeers: this.torrent.numPeers,
 507           uploadSpeed: this.torrent.uploadSpeed,
 508           downloaded: this.torrent.downloaded,
 509           uploaded: this.torrent.uploaded
 510         },
 511         bandwidthEstimate: this.webtorrent.downloadSpeed
 512       } as PlayerNetworkInfo)
 513     }, this.CONSTANTS.INFO_SCHEDULER)
 514   }
 515
 516   private fallbackToHttp (options: PlayOptions, done?: (err?: Error) => void) {
 517     const paused = this.player.paused()
 518
 519     this.disableAutoResolution(true)
 520
 521     this.flushVideoFile(this.currentVideoFile, true)
 522     this.torrent = null
 523
 524     // Enable error display now this is our last fallback
 525     this.player.one('error', () => this.enableErrorDisplay())
 526
 527     const httpUrl = this.currentVideoFile.fileUrl
 528     this.player.src = this.savePlayerSrcFunction
 529     this.player.src(httpUrl)
 530
 531     this.changeQuality()
 532
 533     // We changed the source, so reinit captions
 534     this.player.trigger('sourcechange')
 535
 536     return this.tryToPlay(err => {
 537       if (err && done) return done(err)
 538
 539       if (options.seek) this.seek(options.seek)
 540       if (options.forcePlay === false && paused === true) this.player.pause()
 541
 542       if (done) return done()
 543     })
 544   }
 545
 546   private handleError (err: Error | string) {
 547     return this.player.trigger('customError', { err })
 548   }
 549
 550   private enableErrorDisplay () {
 551     this.player.addClass('vjs-error-display-enabled')
 552   }
 553
 554   private disableErrorDisplay () {
 555     this.player.removeClass('vjs-error-display-enabled')
 556   }
 557
 558   private pickAverageVideoFile () {
 559     if (this.videoFiles.length === 1) return this.videoFiles[0]
 560
 561     const files = this.videoFiles.filter(f => f.resolution.id !== 0)
 562     return files[Math.floor(files.length / 2)]
 563   }
 564
 565   private stopTorrent (torrent: WebTorrent.Torrent) {
 566     torrent.pause()
 567     // Pause does not remove actual peers (in particular the webseed peer)
 568     torrent.removePeer(torrent['ws'])
 569   }
 570
 571   private renderFileInFakeElement (file: WebTorrent.TorrentFile, delay: number) {
 572     this.destroyingFakeRenderer = false
 573
 574     const fakeVideoElem = document.createElement('video')
 575     renderVideo(file, fakeVideoElem, { autoplay: false, controls: false }, (err, renderer) => {
 576       this.fakeRenderer = renderer
 577
 578       // The renderer returns an error when we destroy it, so skip them
 579       if (this.destroyingFakeRenderer === false && err) {
 580         console.error('Cannot render new torrent in fake video element.', err)
 581       }
 582
 583       // Load the future file at the correct time (in delay MS - 2 seconds)
 584       fakeVideoElem.currentTime = this.player.currentTime() + (delay - 2000)
 585     })
 586   }
 587
 588   private destroyFakeRenderer () {
 589     if (this.fakeRenderer) {
 590       this.destroyingFakeRenderer = true
 591
 592       if (this.fakeRenderer.destroy) {
 593         try {
 594           this.fakeRenderer.destroy()
 595         } catch (err) {
 596           console.log('Cannot destroy correctly fake renderer.', err)
 597         }
 598       }
 599       this.fakeRenderer = undefined
 600     }
 601   }
 602
 603   private buildQualities () {
 604     const qualityLevelsPayload = []
 605
 606     for (const file of this.videoFiles) {
 607       const representation = {
 608         id: file.resolution.id,
 609         label: this.buildQualityLabel(file),
 610         height: file.resolution.id,
 611         _enabled: true
 612       }
 613
 614       this.player.qualityLevels().addQualityLevel(representation)
 615
 616       qualityLevelsPayload.push({
 617         id: representation.id,
 618         label: representation.label,
 619         selected: false
 620       })
 621     }
 622
 623     const payload: LoadedQualityData = {
 624       qualitySwitchCallback: (d: any) => this.qualitySwitchCallback(d),
 625       qualityData: {
 626         video: qualityLevelsPayload
 627       }
 628     }
 629     this.player.tech(true).trigger('loadedqualitydata', payload)
 630   }
 631
 632   private buildQualityLabel (file: VideoFile) {
 633     let label = file.resolution.label
 634
 635     if (file.fps && file.fps >= 50) {
 636       label += file.fps
 637     }
 638
 639     return label
 640   }
 641
 642   private qualitySwitchCallback (id: number) {
 643     if (id === -1) {
 644       if (this.autoResolutionPossible === true) this.enableAutoResolution()
 645       return
 646     }
 647
 648     this.disableAutoResolution()
 649     this.updateResolution(id)
 650   }
 651
 652   private changeQuality () {
 653     const resolutionId = this.currentVideoFile.resolution.id as number
 654     const qualityLevels = this.player.qualityLevels()
 655
 656     if (resolutionId === -1) {
 657       qualityLevels.selectedIndex = -1
 658       return
 659     }
 660
 661     for (let i = 0; i < qualityLevels.length; i++) {
 662       const q = qualityLevels[i]
 663       if (q.height === resolutionId) qualityLevels.selectedIndex_ = i
 664     }
 665   }
 666 }
 667
 668 videojs.registerPlugin('webtorrent', WebTorrentPlugin)
 669 export { WebTorrentPlugin }