1 // Big thanks to: https://github.com/kmoskwiak/videojs-resolution-switcher
3 import * as videojs from 'video.js'
4 import * as WebTorrent from 'webtorrent'
5 import { VideoFile } from '../../../../shared/models/videos/video.model'
6 import { renderVideo } from './video-renderer'
8 declare module 'video.js' {
10 peertube (): PeerTubePlugin
14 interface VideoJSComponentInterface {
15 _player: videojs.Player
17 new (player: videojs.Player, options?: any)
19 registerComponent (name: string, obj: any)
22 type PeertubePluginOptions = {
23 videoFiles: VideoFile[]
24 playerElement: HTMLVideoElement
30 // https://github.com/danrevah/ngx-pipes/blob/master/src/pipes/math/bytes.ts
31 // Don't import all Angular stuff, just copy the code with shame
32 const dictionaryBytes: Array<{max: number, type: string}> = [
33 { max: 1024, type: 'B' },
34 { max: 1048576, type: 'KB' },
35 { max: 1073741824, type: 'MB' },
36 { max: 1.0995116e12, type: 'GB' }
38 function bytes (value) {
39 const format = dictionaryBytes.find(d => value < d.max) || dictionaryBytes[dictionaryBytes.length - 1]
40 const calc = Math.floor(value / (format.max / 1024)).toString()
42 return [ calc, format.type ]
45 // videojs typings don't have some method we need
46 const videojsUntyped = videojs as any
47 const webtorrent = new WebTorrent({ dht: false })
49 const MenuItem: VideoJSComponentInterface = videojsUntyped.getComponent('MenuItem')
50 class ResolutionMenuItem extends MenuItem {
52 constructor (player: videojs.Player, options) {
53 options.selectable = true
54 super(player, options)
56 const currentResolution = this.player_.peertube().getCurrentResolution()
57 this.selected(this.options_.id === currentResolution)
61 super.handleClick(event)
63 this.player_.peertube().updateResolution(this.options_.id)
66 MenuItem.registerComponent('ResolutionMenuItem', ResolutionMenuItem)
68 const MenuButton: VideoJSComponentInterface = videojsUntyped.getComponent('MenuButton')
69 class ResolutionMenuButton extends MenuButton {
72 constructor (player: videojs.Player, options) {
73 options.label = 'Quality'
74 super(player, options)
76 this.label = document.createElement('span')
78 this.el().setAttribute('aria-label', 'Quality')
79 this.controlText('Quality')
81 videojsUntyped.dom.addClass(this.label, 'vjs-resolution-button-label')
82 this.el().appendChild(this.label)
84 player.peertube().on('videoFileUpdate', () => this.update())
89 for (const videoFile of this.player_.peertube().videoFiles) {
90 menuItems.push(new ResolutionMenuItem(
93 id: videoFile.resolution,
94 label: videoFile.resolutionLabel,
95 src: videoFile.magnetUri,
96 selected: videoFile.resolution === this.currentSelection
105 if (!this.label) return
107 this.label.innerHTML = this.player_.peertube().getCurrentResolutionLabel()
109 return super.update()
113 return super.buildCSSClass() + ' vjs-resolution-button'
117 this.parentNode.removeChild(this)
120 MenuButton.registerComponent('ResolutionMenuButton', ResolutionMenuButton)
122 const Button: VideoJSComponentInterface = videojsUntyped.getComponent('Button')
123 class PeertubeLinkButton extends Button {
126 const link = document.createElement('a')
127 link.href = window.location.href.replace('embed', 'watch')
128 link.innerHTML = 'PeerTube'
129 link.title = 'Go to the video page'
130 link.className = 'vjs-peertube-link'
131 link.target = '_blank'
141 this.parentNode.removeChild(this)
144 Button.registerComponent('PeerTubeLinkButton', PeertubeLinkButton)
146 class WebTorrentButton extends Button {
148 const div = document.createElement('div')
149 const subDivWebtorrent = document.createElement('div')
150 div.appendChild(subDivWebtorrent)
152 const downloadIcon = document.createElement('span')
153 downloadIcon.classList.add('icon', 'icon-download')
154 subDivWebtorrent.appendChild(downloadIcon)
156 const downloadSpeedText = document.createElement('span')
157 downloadSpeedText.classList.add('download-speed-text')
158 const downloadSpeedNumber = document.createElement('span')
159 downloadSpeedNumber.classList.add('download-speed-number')
160 const downloadSpeedUnit = document.createElement('span')
161 downloadSpeedText.appendChild(downloadSpeedNumber)
162 downloadSpeedText.appendChild(downloadSpeedUnit)
163 subDivWebtorrent.appendChild(downloadSpeedText)
165 const uploadIcon = document.createElement('span')
166 uploadIcon.classList.add('icon', 'icon-upload')
167 subDivWebtorrent.appendChild(uploadIcon)
169 const uploadSpeedText = document.createElement('span')
170 uploadSpeedText.classList.add('upload-speed-text')
171 const uploadSpeedNumber = document.createElement('span')
172 uploadSpeedNumber.classList.add('upload-speed-number')
173 const uploadSpeedUnit = document.createElement('span')
174 uploadSpeedText.appendChild(uploadSpeedNumber)
175 uploadSpeedText.appendChild(uploadSpeedUnit)
176 subDivWebtorrent.appendChild(uploadSpeedText)
178 const peersText = document.createElement('span')
179 peersText.classList.add('peers-text')
180 const peersNumber = document.createElement('span')
181 peersNumber.classList.add('peers-number')
182 subDivWebtorrent.appendChild(peersNumber)
183 subDivWebtorrent.appendChild(peersText)
185 div.className = 'vjs-peertube'
186 // Hide the stats before we get the info
187 subDivWebtorrent.className = 'vjs-peertube-hidden'
189 const subDivHttp = document.createElement('div')
190 subDivHttp.className = 'vjs-peertube-hidden'
191 const subDivHttpText = document.createElement('span')
192 subDivHttpText.classList.add('peers-number')
193 subDivHttpText.textContent = 'HTTP'
194 const subDivFallbackText = document.createElement('span')
195 subDivFallbackText.classList.add('peers-text')
196 subDivFallbackText.textContent = ' fallback'
198 subDivHttp.appendChild(subDivHttpText)
199 subDivHttp.appendChild(subDivFallbackText)
200 div.appendChild(subDivHttp)
202 this.player_.peertube().on('torrentInfo', (event, data) => {
203 // We are in HTTP fallback
205 subDivHttp.className = 'vjs-peertube-displayed'
206 subDivWebtorrent.className = 'vjs-peertube-hidden'
211 const downloadSpeed = bytes(data.downloadSpeed)
212 const uploadSpeed = bytes(data.uploadSpeed)
213 const numPeers = data.numPeers
215 downloadSpeedNumber.textContent = downloadSpeed[ 0 ]
216 downloadSpeedUnit.textContent = ' ' + downloadSpeed[ 1 ]
218 uploadSpeedNumber.textContent = uploadSpeed[ 0 ]
219 uploadSpeedUnit.textContent = ' ' + uploadSpeed[ 1 ]
221 peersNumber.textContent = numPeers
222 peersText.textContent = ' peers'
224 subDivHttp.className = 'vjs-peertube-hidden'
225 subDivWebtorrent.className = 'vjs-peertube-displayed'
232 this.parentNode.removeChild(this)
235 Button.registerComponent('WebTorrentButton', WebTorrentButton)
237 const Plugin: VideoJSComponentInterface = videojsUntyped.getPlugin('plugin')
238 class PeerTubePlugin extends Plugin {
240 private currentVideoFile: VideoFile
241 private playerElement: HTMLVideoElement
242 private videoFiles: VideoFile[]
243 private torrent: WebTorrent.Torrent
244 private autoplay = false
245 private videoViewUrl: string
246 private videoDuration: number
247 private videoViewInterval
248 private torrentInfoInterval
249 private savePlayerSrcFunction: Function
251 constructor (player: videojs.Player, options: PeertubePluginOptions) {
252 super(player, options)
254 // Fix canplay event on google chrome by disabling default videojs autoplay
255 this.autoplay = this.player.options_.autoplay
256 this.player.options_.autoplay = false
258 this.videoFiles = options.videoFiles
259 this.videoViewUrl = options.videoViewUrl
260 this.videoDuration = options.videoDuration
262 this.savePlayerSrcFunction = this.player.src
263 // Hack to "simulate" src link in video.js >= 6
264 // Without this, we can't play the video after pausing it
265 // https://github.com/videojs/video.js/blob/master/src/js/player.js#L1633
266 this.player.src = () => true
268 this.playerElement = options.playerElement
270 this.player.ready(() => {
271 this.initializePlayer(options)
272 this.runTorrentInfoScheduler()
278 clearInterval(this.videoViewInterval)
279 clearInterval(this.torrentInfoInterval)
281 // Don't need to destroy renderer, video player will be destroyed
282 this.flushVideoFile(this.currentVideoFile, false)
285 getCurrentResolution () {
286 return this.currentVideoFile ? this.currentVideoFile.resolution : -1
289 getCurrentResolutionLabel () {
290 return this.currentVideoFile ? this.currentVideoFile.resolutionLabel : ''
293 updateVideoFile (videoFile?: VideoFile, done?: () => void) {
294 if (done === undefined) {
295 done = () => { /* empty */ }
298 // Pick the first one
299 if (videoFile === undefined) {
300 videoFile = this.videoFiles[0]
303 // Don't add the same video file once again
304 if (this.currentVideoFile !== undefined && this.currentVideoFile.magnetUri === videoFile.magnetUri) {
308 // Do not display error to user because we will have multiple fallbacks
309 this.disableErrorDisplay()
310 this.player.src = () => true
312 const previousVideoFile = this.currentVideoFile
313 this.currentVideoFile = videoFile
315 console.log('Adding ' + videoFile.magnetUri + '.')
316 this.torrent = webtorrent.add(videoFile.magnetUri, torrent => {
317 console.log('Added ' + videoFile.magnetUri + '.')
319 this.flushVideoFile(previousVideoFile)
321 const options = { autoplay: true, controls: true }
322 renderVideo(torrent.files[0], this.playerElement, options,(err, renderer) => {
323 if (err) return this.fallbackToHttp()
325 this.renderer = renderer
326 if (!this.player.paused()) {
327 const playPromise = this.player.play()
328 if (playPromise !== undefined) return playPromise.then(done)
337 this.torrent.on('error', err => this.handleError(err))
338 this.torrent.on('warning', (err: any) => {
339 // We don't support HTTP tracker but we don't care -> we use the web socket tracker
340 if (err.message.indexOf('Unsupported tracker protocol') !== -1) return
341 // Users don't care about issues with WebRTC, but developers do so log it in the console
342 if (err.message.indexOf('Ice connection failed') !== -1) {
347 return this.handleError(err)
350 this.trigger('videoFileUpdate')
353 updateResolution (resolution) {
354 // Remember player state
355 const currentTime = this.player.currentTime()
356 const isPaused = this.player.paused()
358 // Remove poster to have black background
359 this.playerElement.poster = ''
361 // Hide bigPlayButton
363 this.player.bigPlayButton.hide()
366 const newVideoFile = this.videoFiles.find(f => f.resolution === resolution)
367 this.updateVideoFile(newVideoFile, () => {
368 this.player.currentTime(currentTime)
369 this.player.handleTechSeeked_()
373 flushVideoFile (videoFile: VideoFile, destroyRenderer = true) {
374 if (videoFile !== undefined && webtorrent.get(videoFile.magnetUri)) {
375 if (destroyRenderer === true && this.renderer && this.renderer.destroy) this.renderer.destroy()
377 webtorrent.remove(videoFile.magnetUri)
378 console.log('Removed ' + videoFile.magnetUri)
382 setVideoFiles (files: VideoFile[], videoViewUrl: string, videoDuration: number) {
383 this.videoViewUrl = videoViewUrl
384 this.videoDuration = videoDuration
385 this.videoFiles = files
387 // Re run view add for the new video
389 this.updateVideoFile(undefined, () => this.player.play())
392 private initializePlayer (options: PeertubePluginOptions) {
393 const controlBar = this.player.controlBar
395 const menuButton = new ResolutionMenuButton(this.player, options)
396 const fullscreenElement = controlBar.fullscreenToggle.el()
397 controlBar.resolutionSwitcher = controlBar.el().insertBefore(menuButton.el(), fullscreenElement)
399 if (options.peerTubeLink === true) {
400 const peerTubeLinkButton = new PeertubeLinkButton(this.player)
401 controlBar.peerTubeLink = controlBar.el().insertBefore(peerTubeLinkButton.el(), fullscreenElement)
404 const webTorrentButton = new WebTorrentButton(this.player)
405 controlBar.webTorrent = controlBar.el().insertBefore(webTorrentButton.el(), controlBar.progressControl.el())
407 if (this.autoplay === true) {
408 this.updateVideoFile(undefined, () => this.player.play())
410 this.player.one('play', () => {
412 this.updateVideoFile(undefined, () => this.player.play())
417 private runTorrentInfoScheduler () {
418 this.torrentInfoInterval = setInterval(() => {
419 // Not initialized yet
420 if (this.torrent === undefined) return
423 if (this.torrent === null) return this.trigger('torrentInfo', false)
425 return this.trigger('torrentInfo', {
426 downloadSpeed: this.torrent.downloadSpeed,
427 numPeers: this.torrent.numPeers,
428 uploadSpeed: this.torrent.uploadSpeed
433 private runViewAdd () {
434 this.clearVideoViewInterval()
436 // After 30 seconds (or 3/4 of the video), add a view to the video
437 let minSecondsToView = 30
439 if (this.videoDuration < minSecondsToView) minSecondsToView = (this.videoDuration * 3) / 4
441 let secondsViewed = 0
442 this.videoViewInterval = setInterval(() => {
443 if (this.player && !this.player.paused()) {
446 if (secondsViewed > minSecondsToView) {
447 this.clearVideoViewInterval()
449 this.addViewToVideo().catch(err => console.error(err))
455 private clearVideoViewInterval () {
456 if (this.videoViewInterval !== undefined) {
457 clearInterval(this.videoViewInterval)
458 this.videoViewInterval = undefined
462 private addViewToVideo () {
463 return fetch(this.videoViewUrl, { method: 'POST' })
466 private fallbackToHttp () {
467 this.flushVideoFile(this.currentVideoFile, true)
470 // Enable error display now this is our last fallback
471 this.player.one('error', () => this.enableErrorDisplay())
473 const httpUrl = this.currentVideoFile.fileUrl
474 this.player.src = this.savePlayerSrcFunction
475 this.player.src(httpUrl)
479 private handleError (err: Error | string) {
480 return this.player.trigger('customError', { err })
483 private enableErrorDisplay () {
484 this.player.addClass('vjs-error-display-enabled')
487 private disableErrorDisplay () {
488 this.player.removeClass('vjs-error-display-enabled')
491 videojsUntyped.registerPlugin('peertube', PeerTubePlugin)