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1 | // Big thanks to: https://github.com/kmoskwiak/videojs-resolution-switcher | |
2 | ||
3 | import * as videojs from 'video.js' | |
4 | import * as WebTorrent from 'webtorrent' | |
5 | import { VideoConstant, VideoResolution } from '../../../../shared/models/videos' | |
6 | import { VideoFile } from '../../../../shared/models/videos/video.model' | |
7 | import { renderVideo } from './video-renderer' | |
8 | ||
9 | declare module 'video.js' { | |
10 | interface Player { | |
11 | peertube (): PeerTubePlugin | |
12 | } | |
13 | } | |
14 | ||
15 | interface VideoJSComponentInterface { | |
16 | _player: videojs.Player | |
17 | ||
18 | new (player: videojs.Player, options?: any) | |
19 | ||
20 | registerComponent (name: string, obj: any) | |
21 | } | |
22 | ||
23 | type PeertubePluginOptions = { | |
24 | videoFiles: VideoFile[] | |
25 | playerElement: HTMLVideoElement | |
26 | videoViewUrl: string | |
27 | videoDuration: number | |
28 | } | |
29 | ||
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' } | |
37 | ] | |
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() | |
41 | ||
42 | return [ calc, format.type ] | |
43 | } | |
44 | ||
45 | // videojs typings don't have some method we need | |
46 | const videojsUntyped = videojs as any | |
47 | const webtorrent = new WebTorrent({ dht: false }) | |
48 | ||
49 | const MenuItem: VideoJSComponentInterface = videojsUntyped.getComponent('MenuItem') | |
50 | class ResolutionMenuItem extends MenuItem { | |
51 | ||
52 | constructor (player: videojs.Player, options) { | |
53 | options.selectable = true | |
54 | super(player, options) | |
55 | ||
56 | const currentResolutionId = this.player_.peertube().getCurrentResolutionId() | |
57 | this.selected(this.options_.id === currentResolutionId) | |
58 | } | |
59 | ||
60 | handleClick (event) { | |
61 | super.handleClick(event) | |
62 | ||
63 | this.player_.peertube().updateResolution(this.options_.id) | |
64 | } | |
65 | } | |
66 | MenuItem.registerComponent('ResolutionMenuItem', ResolutionMenuItem) | |
67 | ||
68 | const MenuButton: VideoJSComponentInterface = videojsUntyped.getComponent('MenuButton') | |
69 | class ResolutionMenuButton extends MenuButton { | |
70 | label: HTMLElement | |
71 | ||
72 | constructor (player: videojs.Player, options) { | |
73 | options.label = 'Quality' | |
74 | super(player, options) | |
75 | ||
76 | this.label = document.createElement('span') | |
77 | ||
78 | this.el().setAttribute('aria-label', 'Quality') | |
79 | this.controlText('Quality') | |
80 | ||
81 | videojsUntyped.dom.addClass(this.label, 'vjs-resolution-button-label') | |
82 | this.el().appendChild(this.label) | |
83 | ||
84 | player.peertube().on('videoFileUpdate', () => this.update()) | |
85 | } | |
86 | ||
87 | createItems () { | |
88 | const menuItems = [] | |
89 | for (const videoFile of this.player_.peertube().videoFiles) { | |
90 | menuItems.push(new ResolutionMenuItem( | |
91 | this.player_, | |
92 | { | |
93 | id: videoFile.resolution.id, | |
94 | label: videoFile.resolution.label, | |
95 | src: videoFile.magnetUri, | |
96 | selected: videoFile.resolution.id === this.currentSelectionId | |
97 | }) | |
98 | ) | |
99 | } | |
100 | ||
101 | return menuItems | |
102 | } | |
103 | ||
104 | update () { | |
105 | if (!this.label) return | |
106 | ||
107 | this.label.innerHTML = this.player_.peertube().getCurrentResolutionLabel() | |
108 | this.hide() | |
109 | return super.update() | |
110 | } | |
111 | ||
112 | buildCSSClass () { | |
113 | return super.buildCSSClass() + ' vjs-resolution-button' | |
114 | } | |
115 | } | |
116 | MenuButton.registerComponent('ResolutionMenuButton', ResolutionMenuButton) | |
117 | ||
118 | const Button: VideoJSComponentInterface = videojsUntyped.getComponent('Button') | |
119 | class PeerTubeLinkButton extends Button { | |
120 | ||
121 | createEl () { | |
122 | const link = document.createElement('a') | |
123 | link.href = window.location.href.replace('embed', 'watch') | |
124 | link.innerHTML = 'PeerTube' | |
125 | link.title = 'Go to the video page' | |
126 | link.className = 'vjs-peertube-link' | |
127 | link.target = '_blank' | |
128 | ||
129 | return link | |
130 | } | |
131 | ||
132 | handleClick () { | |
133 | this.player_.pause() | |
134 | } | |
135 | } | |
136 | Button.registerComponent('PeerTubeLinkButton', PeerTubeLinkButton) | |
137 | ||
138 | class WebTorrentButton extends Button { | |
139 | createEl () { | |
140 | const div = document.createElement('div') | |
141 | const subDivWebtorrent = document.createElement('div') | |
142 | div.appendChild(subDivWebtorrent) | |
143 | ||
144 | const downloadIcon = document.createElement('span') | |
145 | downloadIcon.classList.add('icon', 'icon-download') | |
146 | subDivWebtorrent.appendChild(downloadIcon) | |
147 | ||
148 | const downloadSpeedText = document.createElement('span') | |
149 | downloadSpeedText.classList.add('download-speed-text') | |
150 | const downloadSpeedNumber = document.createElement('span') | |
151 | downloadSpeedNumber.classList.add('download-speed-number') | |
152 | const downloadSpeedUnit = document.createElement('span') | |
153 | downloadSpeedText.appendChild(downloadSpeedNumber) | |
154 | downloadSpeedText.appendChild(downloadSpeedUnit) | |
155 | subDivWebtorrent.appendChild(downloadSpeedText) | |
156 | ||
157 | const uploadIcon = document.createElement('span') | |
158 | uploadIcon.classList.add('icon', 'icon-upload') | |
159 | subDivWebtorrent.appendChild(uploadIcon) | |
160 | ||
161 | const uploadSpeedText = document.createElement('span') | |
162 | uploadSpeedText.classList.add('upload-speed-text') | |
163 | const uploadSpeedNumber = document.createElement('span') | |
164 | uploadSpeedNumber.classList.add('upload-speed-number') | |
165 | const uploadSpeedUnit = document.createElement('span') | |
166 | uploadSpeedText.appendChild(uploadSpeedNumber) | |
167 | uploadSpeedText.appendChild(uploadSpeedUnit) | |
168 | subDivWebtorrent.appendChild(uploadSpeedText) | |
169 | ||
170 | const peersText = document.createElement('span') | |
171 | peersText.classList.add('peers-text') | |
172 | const peersNumber = document.createElement('span') | |
173 | peersNumber.classList.add('peers-number') | |
174 | subDivWebtorrent.appendChild(peersNumber) | |
175 | subDivWebtorrent.appendChild(peersText) | |
176 | ||
177 | div.className = 'vjs-peertube' | |
178 | // Hide the stats before we get the info | |
179 | subDivWebtorrent.className = 'vjs-peertube-hidden' | |
180 | ||
181 | const subDivHttp = document.createElement('div') | |
182 | subDivHttp.className = 'vjs-peertube-hidden' | |
183 | const subDivHttpText = document.createElement('span') | |
184 | subDivHttpText.classList.add('peers-number') | |
185 | subDivHttpText.textContent = 'HTTP' | |
186 | const subDivFallbackText = document.createElement('span') | |
187 | subDivFallbackText.classList.add('peers-text') | |
188 | subDivFallbackText.textContent = ' fallback' | |
189 | ||
190 | subDivHttp.appendChild(subDivHttpText) | |
191 | subDivHttp.appendChild(subDivFallbackText) | |
192 | div.appendChild(subDivHttp) | |
193 | ||
194 | this.player_.peertube().on('torrentInfo', (event, data) => { | |
195 | // We are in HTTP fallback | |
196 | if (!data) { | |
197 | subDivHttp.className = 'vjs-peertube-displayed' | |
198 | subDivWebtorrent.className = 'vjs-peertube-hidden' | |
199 | ||
200 | return | |
201 | } | |
202 | ||
203 | const downloadSpeed = bytes(data.downloadSpeed) | |
204 | const uploadSpeed = bytes(data.uploadSpeed) | |
205 | const numPeers = data.numPeers | |
206 | ||
207 | downloadSpeedNumber.textContent = downloadSpeed[ 0 ] | |
208 | downloadSpeedUnit.textContent = ' ' + downloadSpeed[ 1 ] | |
209 | ||
210 | uploadSpeedNumber.textContent = uploadSpeed[ 0 ] | |
211 | uploadSpeedUnit.textContent = ' ' + uploadSpeed[ 1 ] | |
212 | ||
213 | peersNumber.textContent = numPeers | |
214 | peersText.textContent = ' peers' | |
215 | ||
216 | subDivHttp.className = 'vjs-peertube-hidden' | |
217 | subDivWebtorrent.className = 'vjs-peertube-displayed' | |
218 | }) | |
219 | ||
220 | return div | |
221 | } | |
222 | } | |
223 | Button.registerComponent('WebTorrentButton', WebTorrentButton) | |
224 | ||
225 | const Plugin: VideoJSComponentInterface = videojsUntyped.getPlugin('plugin') | |
226 | class PeerTubePlugin extends Plugin { | |
227 | private player: any | |
228 | private currentVideoFile: VideoFile | |
229 | private playerElement: HTMLVideoElement | |
230 | private videoFiles: VideoFile[] | |
231 | private torrent: WebTorrent.Torrent | |
232 | private autoplay = false | |
233 | private videoViewUrl: string | |
234 | private videoDuration: number | |
235 | private videoViewInterval | |
236 | private torrentInfoInterval | |
237 | private savePlayerSrcFunction: Function | |
238 | ||
239 | constructor (player: videojs.Player, options: PeertubePluginOptions) { | |
240 | super(player, options) | |
241 | ||
242 | // Fix canplay event on google chrome by disabling default videojs autoplay | |
243 | this.autoplay = this.player.options_.autoplay | |
244 | this.player.options_.autoplay = false | |
245 | ||
246 | this.videoFiles = options.videoFiles | |
247 | this.videoViewUrl = options.videoViewUrl | |
248 | this.videoDuration = options.videoDuration | |
249 | ||
250 | this.savePlayerSrcFunction = this.player.src | |
251 | // Hack to "simulate" src link in video.js >= 6 | |
252 | // Without this, we can't play the video after pausing it | |
253 | // https://github.com/videojs/video.js/blob/master/src/js/player.js#L1633 | |
254 | this.player.src = () => true | |
255 | ||
256 | this.playerElement = options.playerElement | |
257 | ||
258 | this.player.ready(() => { | |
259 | this.initializePlayer(options) | |
260 | this.runTorrentInfoScheduler() | |
261 | this.runViewAdd() | |
262 | }) | |
263 | } | |
264 | ||
265 | dispose () { | |
266 | clearInterval(this.videoViewInterval) | |
267 | clearInterval(this.torrentInfoInterval) | |
268 | ||
269 | // Don't need to destroy renderer, video player will be destroyed | |
270 | this.flushVideoFile(this.currentVideoFile, false) | |
271 | } | |
272 | ||
273 | getCurrentResolutionId () { | |
274 | return this.currentVideoFile ? this.currentVideoFile.resolution.id : -1 | |
275 | } | |
276 | ||
277 | getCurrentResolutionLabel () { | |
278 | return this.currentVideoFile ? this.currentVideoFile.resolution.label : '' | |
279 | } | |
280 | ||
281 | updateVideoFile (videoFile?: VideoFile, done?: () => void) { | |
282 | if (done === undefined) { | |
283 | done = () => { /* empty */ } | |
284 | } | |
285 | ||
286 | // Pick the first one | |
287 | if (videoFile === undefined) { | |
288 | videoFile = this.videoFiles[0] | |
289 | } | |
290 | ||
291 | // Don't add the same video file once again | |
292 | if (this.currentVideoFile !== undefined && this.currentVideoFile.magnetUri === videoFile.magnetUri) { | |
293 | return | |
294 | } | |
295 | ||
296 | // Do not display error to user because we will have multiple fallbacks | |
297 | this.disableErrorDisplay() | |
298 | ||
299 | this.player.src = () => true | |
300 | this.player.playbackRate(1) | |
301 | ||
302 | const previousVideoFile = this.currentVideoFile | |
303 | this.currentVideoFile = videoFile | |
304 | ||
305 | console.log('Adding ' + videoFile.magnetUri + '.') | |
306 | this.torrent = webtorrent.add(videoFile.magnetUri, torrent => { | |
307 | console.log('Added ' + videoFile.magnetUri + '.') | |
308 | ||
309 | this.flushVideoFile(previousVideoFile) | |
310 | ||
311 | const options = { autoplay: true, controls: true } | |
312 | renderVideo(torrent.files[0], this.playerElement, options,(err, renderer) => { | |
313 | if (err) return this.fallbackToHttp() | |
314 | ||
315 | this.renderer = renderer | |
316 | if (!this.player.paused()) { | |
317 | const playPromise = this.player.play() | |
318 | if (playPromise !== undefined) return playPromise.then(done) | |
319 | ||
320 | return done() | |
321 | } | |
322 | ||
323 | return done() | |
324 | }) | |
325 | }) | |
326 | ||
327 | this.torrent.on('error', err => this.handleError(err)) | |
328 | this.torrent.on('warning', (err: any) => { | |
329 | // We don't support HTTP tracker but we don't care -> we use the web socket tracker | |
330 | if (err.message.indexOf('Unsupported tracker protocol') !== -1) return | |
331 | // Users don't care about issues with WebRTC, but developers do so log it in the console | |
332 | if (err.message.indexOf('Ice connection failed') !== -1) { | |
333 | console.error(err) | |
334 | return | |
335 | } | |
336 | ||
337 | return this.handleError(err) | |
338 | }) | |
339 | ||
340 | this.trigger('videoFileUpdate') | |
341 | } | |
342 | ||
343 | updateResolution (resolutionId: number) { | |
344 | // Remember player state | |
345 | const currentTime = this.player.currentTime() | |
346 | const isPaused = this.player.paused() | |
347 | ||
348 | // Remove poster to have black background | |
349 | this.playerElement.poster = '' | |
350 | ||
351 | // Hide bigPlayButton | |
352 | if (!isPaused) { | |
353 | this.player.bigPlayButton.hide() | |
354 | } | |
355 | ||
356 | const newVideoFile = this.videoFiles.find(f => f.resolution.id === resolutionId) | |
357 | this.updateVideoFile(newVideoFile, () => { | |
358 | this.player.currentTime(currentTime) | |
359 | this.player.handleTechSeeked_() | |
360 | }) | |
361 | } | |
362 | ||
363 | flushVideoFile (videoFile: VideoFile, destroyRenderer = true) { | |
364 | if (videoFile !== undefined && webtorrent.get(videoFile.magnetUri)) { | |
365 | if (destroyRenderer === true && this.renderer && this.renderer.destroy) this.renderer.destroy() | |
366 | ||
367 | webtorrent.remove(videoFile.magnetUri) | |
368 | console.log('Removed ' + videoFile.magnetUri) | |
369 | } | |
370 | } | |
371 | ||
372 | setVideoFiles (files: VideoFile[], videoViewUrl: string, videoDuration: number) { | |
373 | this.videoViewUrl = videoViewUrl | |
374 | this.videoDuration = videoDuration | |
375 | this.videoFiles = files | |
376 | ||
377 | // Re run view add for the new video | |
378 | this.runViewAdd() | |
379 | this.updateVideoFile(undefined, () => this.player.play()) | |
380 | } | |
381 | ||
382 | private initializePlayer (options: PeertubePluginOptions) { | |
383 | if (this.autoplay === true) { | |
384 | this.updateVideoFile(undefined, () => this.player.play()) | |
385 | } else { | |
386 | this.player.one('play', () => { | |
387 | this.player.pause() | |
388 | this.updateVideoFile(undefined, () => this.player.play()) | |
389 | }) | |
390 | } | |
391 | } | |
392 | ||
393 | private runTorrentInfoScheduler () { | |
394 | this.torrentInfoInterval = setInterval(() => { | |
395 | // Not initialized yet | |
396 | if (this.torrent === undefined) return | |
397 | ||
398 | // Http fallback | |
399 | if (this.torrent === null) return this.trigger('torrentInfo', false) | |
400 | ||
401 | return this.trigger('torrentInfo', { | |
402 | downloadSpeed: this.torrent.downloadSpeed, | |
403 | numPeers: this.torrent.numPeers, | |
404 | uploadSpeed: this.torrent.uploadSpeed | |
405 | }) | |
406 | }, 1000) | |
407 | } | |
408 | ||
409 | private runViewAdd () { | |
410 | this.clearVideoViewInterval() | |
411 | ||
412 | // After 30 seconds (or 3/4 of the video), add a view to the video | |
413 | let minSecondsToView = 30 | |
414 | ||
415 | if (this.videoDuration < minSecondsToView) minSecondsToView = (this.videoDuration * 3) / 4 | |
416 | ||
417 | let secondsViewed = 0 | |
418 | this.videoViewInterval = setInterval(() => { | |
419 | if (this.player && !this.player.paused()) { | |
420 | secondsViewed += 1 | |
421 | ||
422 | if (secondsViewed > minSecondsToView) { | |
423 | this.clearVideoViewInterval() | |
424 | ||
425 | this.addViewToVideo().catch(err => console.error(err)) | |
426 | } | |
427 | } | |
428 | }, 1000) | |
429 | } | |
430 | ||
431 | private clearVideoViewInterval () { | |
432 | if (this.videoViewInterval !== undefined) { | |
433 | clearInterval(this.videoViewInterval) | |
434 | this.videoViewInterval = undefined | |
435 | } | |
436 | } | |
437 | ||
438 | private addViewToVideo () { | |
439 | return fetch(this.videoViewUrl, { method: 'POST' }) | |
440 | } | |
441 | ||
442 | private fallbackToHttp () { | |
443 | this.flushVideoFile(this.currentVideoFile, true) | |
444 | this.torrent = null | |
445 | ||
446 | // Enable error display now this is our last fallback | |
447 | this.player.one('error', () => this.enableErrorDisplay()) | |
448 | ||
449 | const httpUrl = this.currentVideoFile.fileUrl | |
450 | this.player.src = this.savePlayerSrcFunction | |
451 | this.player.src(httpUrl) | |
452 | this.player.play() | |
453 | } | |
454 | ||
455 | private handleError (err: Error | string) { | |
456 | return this.player.trigger('customError', { err }) | |
457 | } | |
458 | ||
459 | private enableErrorDisplay () { | |
460 | this.player.addClass('vjs-error-display-enabled') | |
461 | } | |
462 | ||
463 | private disableErrorDisplay () { | |
464 | this.player.removeClass('vjs-error-display-enabled') | |
465 | } | |
466 | } | |
467 | videojsUntyped.registerPlugin('peertube', PeerTubePlugin) |