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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 { VideoFile } from '../../../../shared/models/videos/video.model' | |
6 | import { renderVideo } from './video-renderer' | |
7 | ||
8 | declare module 'video.js' { | |
9 | interface Player { | |
10 | peertube (): PeerTubePlugin | |
11 | } | |
12 | } | |
13 | ||
14 | interface VideoJSComponentInterface { | |
15 | _player: videojs.Player | |
16 | ||
17 | new (player: videojs.Player, options?: any) | |
18 | ||
19 | registerComponent (name: string, obj: any) | |
20 | } | |
21 | ||
22 | type PeertubePluginOptions = { | |
23 | videoFiles: VideoFile[] | |
24 | playerElement: HTMLVideoElement | |
25 | videoViewUrl: string | |
26 | videoDuration: number | |
27 | } | |
28 | ||
29 | // https://github.com/danrevah/ngx-pipes/blob/master/src/pipes/math/bytes.ts | |
30 | // Don't import all Angular stuff, just copy the code with shame | |
31 | const dictionaryBytes: Array<{max: number, type: string}> = [ | |
32 | { max: 1024, type: 'B' }, | |
33 | { max: 1048576, type: 'KB' }, | |
34 | { max: 1073741824, type: 'MB' }, | |
35 | { max: 1.0995116e12, type: 'GB' } | |
36 | ] | |
37 | function bytes (value) { | |
38 | const format = dictionaryBytes.find(d => value < d.max) || dictionaryBytes[dictionaryBytes.length - 1] | |
39 | const calc = Math.floor(value / (format.max / 1024)).toString() | |
40 | ||
41 | return [ calc, format.type ] | |
42 | } | |
43 | ||
44 | // videojs typings don't have some method we need | |
45 | const videojsUntyped = videojs as any | |
46 | const webtorrent = new WebTorrent({ dht: false }) | |
47 | ||
48 | const MenuItem: VideoJSComponentInterface = videojsUntyped.getComponent('MenuItem') | |
49 | class ResolutionMenuItem extends MenuItem { | |
50 | ||
51 | constructor (player: videojs.Player, options) { | |
52 | options.selectable = true | |
53 | super(player, options) | |
54 | ||
55 | const currentResolution = this.player_.peertube().getCurrentResolution() | |
56 | this.selected(this.options_.id === currentResolution) | |
57 | } | |
58 | ||
59 | handleClick (event) { | |
60 | super.handleClick(event) | |
61 | ||
62 | this.player_.peertube().updateResolution(this.options_.id) | |
63 | } | |
64 | } | |
65 | MenuItem.registerComponent('ResolutionMenuItem', ResolutionMenuItem) | |
66 | ||
67 | const MenuButton: VideoJSComponentInterface = videojsUntyped.getComponent('MenuButton') | |
68 | class ResolutionMenuButton extends MenuButton { | |
69 | label: HTMLElement | |
70 | ||
71 | constructor (player: videojs.Player, options) { | |
72 | options.label = 'Quality' | |
73 | super(player, options) | |
74 | ||
75 | this.label = document.createElement('span') | |
76 | ||
77 | this.el().setAttribute('aria-label', 'Quality') | |
78 | this.controlText('Quality') | |
79 | ||
80 | videojsUntyped.dom.addClass(this.label, 'vjs-resolution-button-label') | |
81 | this.el().appendChild(this.label) | |
82 | ||
83 | player.peertube().on('videoFileUpdate', () => this.update()) | |
84 | } | |
85 | ||
86 | createItems () { | |
87 | const menuItems = [] | |
88 | for (const videoFile of this.player_.peertube().videoFiles) { | |
89 | menuItems.push(new ResolutionMenuItem( | |
90 | this.player_, | |
91 | { | |
92 | id: videoFile.resolution, | |
93 | label: videoFile.resolutionLabel, | |
94 | src: videoFile.magnetUri, | |
95 | selected: videoFile.resolution === this.currentSelection | |
96 | }) | |
97 | ) | |
98 | } | |
99 | ||
100 | return menuItems | |
101 | } | |
102 | ||
103 | update () { | |
104 | if (!this.label) return | |
105 | ||
106 | this.label.innerHTML = this.player_.peertube().getCurrentResolutionLabel() | |
107 | this.hide() | |
108 | return super.update() | |
109 | } | |
110 | ||
111 | buildCSSClass () { | |
112 | return super.buildCSSClass() + ' vjs-resolution-button' | |
113 | } | |
114 | ||
115 | dispose () { | |
116 | this.parentNode.removeChild(this) | |
117 | } | |
118 | } | |
119 | MenuButton.registerComponent('ResolutionMenuButton', ResolutionMenuButton) | |
120 | ||
121 | const Button: VideoJSComponentInterface = videojsUntyped.getComponent('Button') | |
122 | class PeerTubeLinkButton extends Button { | |
123 | ||
124 | createEl () { | |
125 | const link = document.createElement('a') | |
126 | link.href = window.location.href.replace('embed', 'watch') | |
127 | link.innerHTML = 'PeerTube' | |
128 | link.title = 'Go to the video page' | |
129 | link.className = 'vjs-peertube-link' | |
130 | link.target = '_blank' | |
131 | ||
132 | return link | |
133 | } | |
134 | ||
135 | handleClick () { | |
136 | this.player_.pause() | |
137 | } | |
138 | ||
139 | dispose () { | |
140 | this.parentNode.removeChild(this) | |
141 | } | |
142 | } | |
143 | Button.registerComponent('PeerTubeLinkButton', PeerTubeLinkButton) | |
144 | ||
145 | class WebTorrentButton extends Button { | |
146 | createEl () { | |
147 | const div = document.createElement('div') | |
148 | const subDivWebtorrent = document.createElement('div') | |
149 | div.appendChild(subDivWebtorrent) | |
150 | ||
151 | const downloadIcon = document.createElement('span') | |
152 | downloadIcon.classList.add('icon', 'icon-download') | |
153 | subDivWebtorrent.appendChild(downloadIcon) | |
154 | ||
155 | const downloadSpeedText = document.createElement('span') | |
156 | downloadSpeedText.classList.add('download-speed-text') | |
157 | const downloadSpeedNumber = document.createElement('span') | |
158 | downloadSpeedNumber.classList.add('download-speed-number') | |
159 | const downloadSpeedUnit = document.createElement('span') | |
160 | downloadSpeedText.appendChild(downloadSpeedNumber) | |
161 | downloadSpeedText.appendChild(downloadSpeedUnit) | |
162 | subDivWebtorrent.appendChild(downloadSpeedText) | |
163 | ||
164 | const uploadIcon = document.createElement('span') | |
165 | uploadIcon.classList.add('icon', 'icon-upload') | |
166 | subDivWebtorrent.appendChild(uploadIcon) | |
167 | ||
168 | const uploadSpeedText = document.createElement('span') | |
169 | uploadSpeedText.classList.add('upload-speed-text') | |
170 | const uploadSpeedNumber = document.createElement('span') | |
171 | uploadSpeedNumber.classList.add('upload-speed-number') | |
172 | const uploadSpeedUnit = document.createElement('span') | |
173 | uploadSpeedText.appendChild(uploadSpeedNumber) | |
174 | uploadSpeedText.appendChild(uploadSpeedUnit) | |
175 | subDivWebtorrent.appendChild(uploadSpeedText) | |
176 | ||
177 | const peersText = document.createElement('span') | |
178 | peersText.classList.add('peers-text') | |
179 | const peersNumber = document.createElement('span') | |
180 | peersNumber.classList.add('peers-number') | |
181 | subDivWebtorrent.appendChild(peersNumber) | |
182 | subDivWebtorrent.appendChild(peersText) | |
183 | ||
184 | div.className = 'vjs-peertube' | |
185 | // Hide the stats before we get the info | |
186 | subDivWebtorrent.className = 'vjs-peertube-hidden' | |
187 | ||
188 | const subDivHttp = document.createElement('div') | |
189 | subDivHttp.className = 'vjs-peertube-hidden' | |
190 | const subDivHttpText = document.createElement('span') | |
191 | subDivHttpText.classList.add('peers-number') | |
192 | subDivHttpText.textContent = 'HTTP' | |
193 | const subDivFallbackText = document.createElement('span') | |
194 | subDivFallbackText.classList.add('peers-text') | |
195 | subDivFallbackText.textContent = ' fallback' | |
196 | ||
197 | subDivHttp.appendChild(subDivHttpText) | |
198 | subDivHttp.appendChild(subDivFallbackText) | |
199 | div.appendChild(subDivHttp) | |
200 | ||
201 | this.player_.peertube().on('torrentInfo', (event, data) => { | |
202 | // We are in HTTP fallback | |
203 | if (!data) { | |
204 | subDivHttp.className = 'vjs-peertube-displayed' | |
205 | subDivWebtorrent.className = 'vjs-peertube-hidden' | |
206 | ||
207 | return | |
208 | } | |
209 | ||
210 | const downloadSpeed = bytes(data.downloadSpeed) | |
211 | const uploadSpeed = bytes(data.uploadSpeed) | |
212 | const numPeers = data.numPeers | |
213 | ||
214 | downloadSpeedNumber.textContent = downloadSpeed[ 0 ] | |
215 | downloadSpeedUnit.textContent = ' ' + downloadSpeed[ 1 ] | |
216 | ||
217 | uploadSpeedNumber.textContent = uploadSpeed[ 0 ] | |
218 | uploadSpeedUnit.textContent = ' ' + uploadSpeed[ 1 ] | |
219 | ||
220 | peersNumber.textContent = numPeers | |
221 | peersText.textContent = ' peers' | |
222 | ||
223 | subDivHttp.className = 'vjs-peertube-hidden' | |
224 | subDivWebtorrent.className = 'vjs-peertube-displayed' | |
225 | }) | |
226 | ||
227 | return div | |
228 | } | |
229 | ||
230 | dispose () { | |
231 | this.parentNode.removeChild(this) | |
232 | } | |
233 | } | |
234 | Button.registerComponent('WebTorrentButton', WebTorrentButton) | |
235 | ||
236 | const Plugin: VideoJSComponentInterface = videojsUntyped.getPlugin('plugin') | |
237 | class PeerTubePlugin extends Plugin { | |
238 | private player: any | |
239 | private currentVideoFile: VideoFile | |
240 | private playerElement: HTMLVideoElement | |
241 | private videoFiles: VideoFile[] | |
242 | private torrent: WebTorrent.Torrent | |
243 | private autoplay = false | |
244 | private videoViewUrl: string | |
245 | private videoDuration: number | |
246 | private videoViewInterval | |
247 | private torrentInfoInterval | |
248 | private savePlayerSrcFunction: Function | |
249 | ||
250 | constructor (player: videojs.Player, options: PeertubePluginOptions) { | |
251 | super(player, options) | |
252 | ||
253 | // Fix canplay event on google chrome by disabling default videojs autoplay | |
254 | this.autoplay = this.player.options_.autoplay | |
255 | this.player.options_.autoplay = false | |
256 | ||
257 | this.videoFiles = options.videoFiles | |
258 | this.videoViewUrl = options.videoViewUrl | |
259 | this.videoDuration = options.videoDuration | |
260 | ||
261 | this.savePlayerSrcFunction = this.player.src | |
262 | // Hack to "simulate" src link in video.js >= 6 | |
263 | // Without this, we can't play the video after pausing it | |
264 | // https://github.com/videojs/video.js/blob/master/src/js/player.js#L1633 | |
265 | this.player.src = () => true | |
266 | ||
267 | this.playerElement = options.playerElement | |
268 | ||
269 | this.player.ready(() => { | |
270 | this.initializePlayer(options) | |
271 | this.runTorrentInfoScheduler() | |
272 | this.runViewAdd() | |
273 | }) | |
274 | } | |
275 | ||
276 | dispose () { | |
277 | clearInterval(this.videoViewInterval) | |
278 | clearInterval(this.torrentInfoInterval) | |
279 | ||
280 | // Don't need to destroy renderer, video player will be destroyed | |
281 | this.flushVideoFile(this.currentVideoFile, false) | |
282 | } | |
283 | ||
284 | getCurrentResolution () { | |
285 | return this.currentVideoFile ? this.currentVideoFile.resolution : -1 | |
286 | } | |
287 | ||
288 | getCurrentResolutionLabel () { | |
289 | return this.currentVideoFile ? this.currentVideoFile.resolutionLabel : '' | |
290 | } | |
291 | ||
292 | updateVideoFile (videoFile?: VideoFile, done?: () => void) { | |
293 | if (done === undefined) { | |
294 | done = () => { /* empty */ } | |
295 | } | |
296 | ||
297 | // Pick the first one | |
298 | if (videoFile === undefined) { | |
299 | videoFile = this.videoFiles[0] | |
300 | } | |
301 | ||
302 | // Don't add the same video file once again | |
303 | if (this.currentVideoFile !== undefined && this.currentVideoFile.magnetUri === videoFile.magnetUri) { | |
304 | return | |
305 | } | |
306 | ||
307 | // Do not display error to user because we will have multiple fallbacks | |
308 | this.disableErrorDisplay() | |
309 | ||
310 | this.player.src = () => true | |
311 | this.player.playbackRate(1) | |
312 | ||
313 | const previousVideoFile = this.currentVideoFile | |
314 | this.currentVideoFile = videoFile | |
315 | ||
316 | console.log('Adding ' + videoFile.magnetUri + '.') | |
317 | this.torrent = webtorrent.add(videoFile.magnetUri, torrent => { | |
318 | console.log('Added ' + videoFile.magnetUri + '.') | |
319 | ||
320 | this.flushVideoFile(previousVideoFile) | |
321 | ||
322 | const options = { autoplay: true, controls: true } | |
323 | renderVideo(torrent.files[0], this.playerElement, options,(err, renderer) => { | |
324 | if (err) return this.fallbackToHttp() | |
325 | ||
326 | this.renderer = renderer | |
327 | if (!this.player.paused()) { | |
328 | const playPromise = this.player.play() | |
329 | if (playPromise !== undefined) return playPromise.then(done) | |
330 | ||
331 | return done() | |
332 | } | |
333 | ||
334 | return done() | |
335 | }) | |
336 | }) | |
337 | ||
338 | this.torrent.on('error', err => this.handleError(err)) | |
339 | this.torrent.on('warning', (err: any) => { | |
340 | // We don't support HTTP tracker but we don't care -> we use the web socket tracker | |
341 | if (err.message.indexOf('Unsupported tracker protocol') !== -1) return | |
342 | // Users don't care about issues with WebRTC, but developers do so log it in the console | |
343 | if (err.message.indexOf('Ice connection failed') !== -1) { | |
344 | console.error(err) | |
345 | return | |
346 | } | |
347 | ||
348 | return this.handleError(err) | |
349 | }) | |
350 | ||
351 | this.trigger('videoFileUpdate') | |
352 | } | |
353 | ||
354 | updateResolution (resolution) { | |
355 | // Remember player state | |
356 | const currentTime = this.player.currentTime() | |
357 | const isPaused = this.player.paused() | |
358 | ||
359 | // Remove poster to have black background | |
360 | this.playerElement.poster = '' | |
361 | ||
362 | // Hide bigPlayButton | |
363 | if (!isPaused) { | |
364 | this.player.bigPlayButton.hide() | |
365 | } | |
366 | ||
367 | const newVideoFile = this.videoFiles.find(f => f.resolution === resolution) | |
368 | this.updateVideoFile(newVideoFile, () => { | |
369 | this.player.currentTime(currentTime) | |
370 | this.player.handleTechSeeked_() | |
371 | }) | |
372 | } | |
373 | ||
374 | flushVideoFile (videoFile: VideoFile, destroyRenderer = true) { | |
375 | if (videoFile !== undefined && webtorrent.get(videoFile.magnetUri)) { | |
376 | if (destroyRenderer === true && this.renderer && this.renderer.destroy) this.renderer.destroy() | |
377 | ||
378 | webtorrent.remove(videoFile.magnetUri) | |
379 | console.log('Removed ' + videoFile.magnetUri) | |
380 | } | |
381 | } | |
382 | ||
383 | setVideoFiles (files: VideoFile[], videoViewUrl: string, videoDuration: number) { | |
384 | this.videoViewUrl = videoViewUrl | |
385 | this.videoDuration = videoDuration | |
386 | this.videoFiles = files | |
387 | ||
388 | // Re run view add for the new video | |
389 | this.runViewAdd() | |
390 | this.updateVideoFile(undefined, () => this.player.play()) | |
391 | } | |
392 | ||
393 | private initializePlayer (options: PeertubePluginOptions) { | |
394 | if (this.autoplay === true) { | |
395 | this.updateVideoFile(undefined, () => this.player.play()) | |
396 | } else { | |
397 | this.player.one('play', () => { | |
398 | this.player.pause() | |
399 | this.updateVideoFile(undefined, () => this.player.play()) | |
400 | }) | |
401 | } | |
402 | } | |
403 | ||
404 | private runTorrentInfoScheduler () { | |
405 | this.torrentInfoInterval = setInterval(() => { | |
406 | // Not initialized yet | |
407 | if (this.torrent === undefined) return | |
408 | ||
409 | // Http fallback | |
410 | if (this.torrent === null) return this.trigger('torrentInfo', false) | |
411 | ||
412 | return this.trigger('torrentInfo', { | |
413 | downloadSpeed: this.torrent.downloadSpeed, | |
414 | numPeers: this.torrent.numPeers, | |
415 | uploadSpeed: this.torrent.uploadSpeed | |
416 | }) | |
417 | }, 1000) | |
418 | } | |
419 | ||
420 | private runViewAdd () { | |
421 | this.clearVideoViewInterval() | |
422 | ||
423 | // After 30 seconds (or 3/4 of the video), add a view to the video | |
424 | let minSecondsToView = 30 | |
425 | ||
426 | if (this.videoDuration < minSecondsToView) minSecondsToView = (this.videoDuration * 3) / 4 | |
427 | ||
428 | let secondsViewed = 0 | |
429 | this.videoViewInterval = setInterval(() => { | |
430 | if (this.player && !this.player.paused()) { | |
431 | secondsViewed += 1 | |
432 | ||
433 | if (secondsViewed > minSecondsToView) { | |
434 | this.clearVideoViewInterval() | |
435 | ||
436 | this.addViewToVideo().catch(err => console.error(err)) | |
437 | } | |
438 | } | |
439 | }, 1000) | |
440 | } | |
441 | ||
442 | private clearVideoViewInterval () { | |
443 | if (this.videoViewInterval !== undefined) { | |
444 | clearInterval(this.videoViewInterval) | |
445 | this.videoViewInterval = undefined | |
446 | } | |
447 | } | |
448 | ||
449 | private addViewToVideo () { | |
450 | return fetch(this.videoViewUrl, { method: 'POST' }) | |
451 | } | |
452 | ||
453 | private fallbackToHttp () { | |
454 | this.flushVideoFile(this.currentVideoFile, true) | |
455 | this.torrent = null | |
456 | ||
457 | // Enable error display now this is our last fallback | |
458 | this.player.one('error', () => this.enableErrorDisplay()) | |
459 | ||
460 | const httpUrl = this.currentVideoFile.fileUrl | |
461 | this.player.src = this.savePlayerSrcFunction | |
462 | this.player.src(httpUrl) | |
463 | this.player.play() | |
464 | } | |
465 | ||
466 | private handleError (err: Error | string) { | |
467 | return this.player.trigger('customError', { err }) | |
468 | } | |
469 | ||
470 | private enableErrorDisplay () { | |
471 | this.player.addClass('vjs-error-display-enabled') | |
472 | } | |
473 | ||
474 | private disableErrorDisplay () { | |
475 | this.player.removeClass('vjs-error-display-enabled') | |
476 | } | |
477 | } | |
478 | videojsUntyped.registerPlugin('peertube', PeerTubePlugin) |