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