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