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1 | import videojs from 'video.js' | |
2 | import * as WebTorrent from 'webtorrent' | |
3 | import { logger } from '@root-helpers/logger' | |
4 | import { isIOS } from '@root-helpers/web-browser' | |
5 | import { addQueryParams, timeToInt } from '@shared/core-utils' | |
6 | import { VideoFile } from '@shared/models' | |
7 | import { getAverageBandwidthInStore, getStoredMute, getStoredVolume, saveAverageBandwidth } from '../../peertube-player-local-storage' | |
8 | import { PeerTubeResolution, PlayerNetworkInfo, WebtorrentPluginOptions } from '../../types' | |
9 | import { getRtcConfig, videoFileMaxByResolution, videoFileMinByResolution } from '../common' | |
10 | import { PeertubeChunkStore } from './peertube-chunk-store' | |
11 | import { renderVideo } from './video-renderer' | |
12 | ||
13 | const CacheChunkStore = require('cache-chunk-store') | |
14 | ||
15 | type PlayOptions = { | |
16 | forcePlay?: boolean | |
17 | seek?: number | |
18 | delay?: number | |
19 | } | |
20 | ||
21 | const Plugin = videojs.getPlugin('plugin') | |
22 | ||
23 | class WebTorrentPlugin extends Plugin { | |
24 | readonly videoFiles: VideoFile[] | |
25 | ||
26 | private readonly playerElement: HTMLVideoElement | |
27 | ||
28 | private readonly autoplay: boolean | string = false | |
29 | private readonly startTime: number = 0 | |
30 | private readonly savePlayerSrcFunction: videojs.Player['src'] | |
31 | private readonly videoDuration: number | |
32 | private readonly CONSTANTS = { | |
33 | INFO_SCHEDULER: 1000, // Don't change this | |
34 | AUTO_QUALITY_SCHEDULER: 3000, // Check quality every 3 seconds | |
35 | AUTO_QUALITY_THRESHOLD_PERCENT: 30, // Bandwidth should be 30% more important than a resolution bitrate to change to it | |
36 | AUTO_QUALITY_OBSERVATION_TIME: 10000, // Wait 10 seconds after having change the resolution before another check | |
37 | AUTO_QUALITY_HIGHER_RESOLUTION_DELAY: 5000, // Buffering higher resolution during 5 seconds | |
38 | BANDWIDTH_AVERAGE_NUMBER_OF_VALUES: 5 // Last 5 seconds to build average bandwidth | |
39 | } | |
40 | ||
41 | private readonly buildWebSeedUrls: (file: VideoFile) => string[] | |
42 | ||
43 | private readonly webtorrent = new WebTorrent({ | |
44 | tracker: { | |
45 | rtcConfig: getRtcConfig() | |
46 | }, | |
47 | dht: false | |
48 | }) | |
49 | ||
50 | private currentVideoFile: VideoFile | |
51 | private torrent: WebTorrent.Torrent | |
52 | ||
53 | private renderer: any | |
54 | private fakeRenderer: any | |
55 | private destroyingFakeRenderer = false | |
56 | ||
57 | private autoResolution = true | |
58 | private autoResolutionPossible = true | |
59 | private isAutoResolutionObservation = false | |
60 | private playerRefusedP2P = false | |
61 | ||
62 | private requiresAuth: boolean | |
63 | private videoFileToken: () => string | |
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) | |
75 | ||
76 | this.startTime = timeToInt(options.startTime) | |
77 | ||
78 | // Custom autoplay handled by webtorrent because we lazy play the video | |
79 | this.autoplay = options.autoplay | |
80 | ||
81 | this.playerRefusedP2P = options.playerRefusedP2P | |
82 | ||
83 | this.videoFiles = options.videoFiles | |
84 | this.videoDuration = options.videoDuration | |
85 | ||
86 | this.savePlayerSrcFunction = this.player.src | |
87 | this.playerElement = options.playerElement | |
88 | ||
89 | this.requiresAuth = options.requiresAuth | |
90 | this.videoFileToken = options.videoFileToken | |
91 | ||
92 | this.buildWebSeedUrls = options.buildWebSeedUrls | |
93 | ||
94 | this.player.ready(() => { | |
95 | const playerOptions = this.player.options_ | |
96 | ||
97 | const volume = getStoredVolume() | |
98 | if (volume !== undefined) this.player.volume(volume) | |
99 | ||
100 | const muted = playerOptions.muted !== undefined ? playerOptions.muted : getStoredMute() | |
101 | if (muted !== undefined) this.player.muted(muted) | |
102 | ||
103 | this.player.duration(options.videoDuration) | |
104 | ||
105 | this.initializePlayer() | |
106 | this.runTorrentInfoScheduler() | |
107 | ||
108 | this.player.one('play', () => { | |
109 | // Don't run immediately scheduler, wait some seconds the TCP connections are made | |
110 | this.runAutoQualitySchedulerTimer = setTimeout(() => this.runAutoQualityScheduler(), this.CONSTANTS.AUTO_QUALITY_SCHEDULER) | |
111 | }) | |
112 | }) | |
113 | } | |
114 | ||
115 | dispose () { | |
116 | clearTimeout(this.addTorrentDelay) | |
117 | clearTimeout(this.qualityObservationTimer) | |
118 | clearTimeout(this.runAutoQualitySchedulerTimer) | |
119 | ||
120 | clearInterval(this.torrentInfoInterval) | |
121 | clearInterval(this.autoQualityInterval) | |
122 | ||
123 | // Don't need to destroy renderer, video player will be destroyed | |
124 | this.flushVideoFile(this.currentVideoFile, false) | |
125 | ||
126 | this.destroyFakeRenderer() | |
127 | } | |
128 | ||
129 | getCurrentResolutionId () { | |
130 | return this.currentVideoFile ? this.currentVideoFile.resolution.id : -1 | |
131 | } | |
132 | ||
133 | updateVideoFile ( | |
134 | videoFile?: VideoFile, | |
135 | options: { | |
136 | forcePlay?: boolean | |
137 | seek?: number | |
138 | delay?: number | |
139 | } = {}, | |
140 | done: () => void = () => { /* empty */ } | |
141 | ) { | |
142 | // Automatically choose the adapted video file | |
143 | if (!videoFile) { | |
144 | const savedAverageBandwidth = getAverageBandwidthInStore() | |
145 | videoFile = savedAverageBandwidth | |
146 | ? this.getAppropriateFile(savedAverageBandwidth) | |
147 | : this.pickAverageVideoFile() | |
148 | } | |
149 | ||
150 | if (!videoFile) { | |
151 | throw Error(`Can't update video file since videoFile is undefined.`) | |
152 | } | |
153 | ||
154 | // Don't add the same video file once again | |
155 | if (this.currentVideoFile !== undefined && this.currentVideoFile.magnetUri === videoFile.magnetUri) { | |
156 | return | |
157 | } | |
158 | ||
159 | // Do not display error to user because we will have multiple fallback | |
160 | this.player.peertube().hideFatalError(); | |
161 | ||
162 | // Hack to "simulate" src link in video.js >= 6 | |
163 | // Without this, we can't play the video after pausing it | |
164 | // https://github.com/videojs/video.js/blob/master/src/js/player.js#L1633 | |
165 | (this.player as any).src = () => true | |
166 | const oldPlaybackRate = this.player.playbackRate() | |
167 | ||
168 | const previousVideoFile = this.currentVideoFile | |
169 | this.currentVideoFile = videoFile | |
170 | ||
171 | // Don't try on iOS that does not support MediaSource | |
172 | // Or don't use P2P if webtorrent is disabled | |
173 | if (isIOS() || this.playerRefusedP2P) { | |
174 | return this.fallbackToHttp(options, () => { | |
175 | this.player.playbackRate(oldPlaybackRate) | |
176 | return done() | |
177 | }) | |
178 | } | |
179 | ||
180 | this.addTorrent(this.currentVideoFile.magnetUri, previousVideoFile, options, () => { | |
181 | this.player.playbackRate(oldPlaybackRate) | |
182 | return done() | |
183 | }) | |
184 | ||
185 | this.selectAppropriateResolution(true) | |
186 | } | |
187 | ||
188 | updateEngineResolution (resolutionId: number, delay = 0) { | |
189 | // Remember player state | |
190 | const currentTime = this.player.currentTime() | |
191 | const isPaused = this.player.paused() | |
192 | ||
193 | // Hide bigPlayButton | |
194 | if (!isPaused) { | |
195 | this.player.bigPlayButton.hide() | |
196 | } | |
197 | ||
198 | // Audio-only (resolutionId === 0) gets special treatment | |
199 | if (resolutionId === 0) { | |
200 | // Audio-only: show poster, do not auto-hide controls | |
201 | this.player.addClass('vjs-playing-audio-only-content') | |
202 | this.player.posterImage.show() | |
203 | } else { | |
204 | // Hide poster to have black background | |
205 | this.player.removeClass('vjs-playing-audio-only-content') | |
206 | this.player.posterImage.hide() | |
207 | } | |
208 | ||
209 | const newVideoFile = this.videoFiles.find(f => f.resolution.id === resolutionId) | |
210 | const options = { | |
211 | forcePlay: false, | |
212 | delay, | |
213 | seek: currentTime + (delay / 1000) | |
214 | } | |
215 | ||
216 | this.updateVideoFile(newVideoFile, options) | |
217 | ||
218 | this.player.trigger('engineResolutionChange') | |
219 | } | |
220 | ||
221 | flushVideoFile (videoFile: VideoFile, destroyRenderer = true) { | |
222 | if (videoFile !== undefined && this.webtorrent.get(videoFile.magnetUri)) { | |
223 | if (destroyRenderer === true && this.renderer && this.renderer.destroy) this.renderer.destroy() | |
224 | ||
225 | this.webtorrent.remove(videoFile.magnetUri) | |
226 | logger.info(`Removed ${videoFile.magnetUri}`) | |
227 | } | |
228 | } | |
229 | ||
230 | disableAutoResolution () { | |
231 | this.autoResolution = false | |
232 | this.autoResolutionPossible = false | |
233 | this.player.peertubeResolutions().disableAutoResolution() | |
234 | } | |
235 | ||
236 | isAutoResolutionPossible () { | |
237 | return this.autoResolutionPossible | |
238 | } | |
239 | ||
240 | getTorrent () { | |
241 | return this.torrent | |
242 | } | |
243 | ||
244 | getCurrentVideoFile () { | |
245 | return this.currentVideoFile | |
246 | } | |
247 | ||
248 | changeQuality (id: number) { | |
249 | if (id === -1) { | |
250 | if (this.autoResolutionPossible === true) { | |
251 | this.autoResolution = true | |
252 | ||
253 | this.selectAppropriateResolution(false) | |
254 | } | |
255 | ||
256 | return | |
257 | } | |
258 | ||
259 | this.autoResolution = false | |
260 | this.updateEngineResolution(id) | |
261 | this.selectAppropriateResolution(false) | |
262 | } | |
263 | ||
264 | private addTorrent ( | |
265 | magnetOrTorrentUrl: string, | |
266 | previousVideoFile: VideoFile, | |
267 | options: PlayOptions, | |
268 | done: (err?: Error) => void | |
269 | ) { | |
270 | if (!magnetOrTorrentUrl) return this.fallbackToHttp(options, done) | |
271 | ||
272 | logger.info(`Adding ${magnetOrTorrentUrl}.`) | |
273 | ||
274 | const oldTorrent = this.torrent | |
275 | const torrentOptions = { | |
276 | // Don't use arrow function: it breaks webtorrent (that uses `new` keyword) | |
277 | store: function (chunkLength: number, storeOpts: any) { | |
278 | return new CacheChunkStore(new PeertubeChunkStore(chunkLength, storeOpts), { | |
279 | max: 100 | |
280 | }) | |
281 | }, | |
282 | urlList: this.buildWebSeedUrls(this.currentVideoFile) | |
283 | } | |
284 | ||
285 | this.torrent = this.webtorrent.add(magnetOrTorrentUrl, torrentOptions, torrent => { | |
286 | logger.info(`Added ${magnetOrTorrentUrl}.`) | |
287 | ||
288 | if (oldTorrent) { | |
289 | // Pause the old torrent | |
290 | this.stopTorrent(oldTorrent) | |
291 | ||
292 | // We use a fake renderer so we download correct pieces of the next file | |
293 | if (options.delay) this.renderFileInFakeElement(torrent.files[0], options.delay) | |
294 | } | |
295 | ||
296 | // Render the video in a few seconds? (on resolution change for example, we wait some seconds of the new video resolution) | |
297 | this.addTorrentDelay = setTimeout(() => { | |
298 | // We don't need the fake renderer anymore | |
299 | this.destroyFakeRenderer() | |
300 | ||
301 | const paused = this.player.paused() | |
302 | ||
303 | this.flushVideoFile(previousVideoFile) | |
304 | ||
305 | // Update progress bar (just for the UI), do not wait rendering | |
306 | if (options.seek) this.player.currentTime(options.seek) | |
307 | ||
308 | const renderVideoOptions = { autoplay: false, controls: true } | |
309 | renderVideo(torrent.files[0], this.playerElement, renderVideoOptions, (err, renderer) => { | |
310 | this.renderer = renderer | |
311 | ||
312 | if (err) return this.fallbackToHttp(options, done) | |
313 | ||
314 | return this.tryToPlay(err => { | |
315 | if (err) return done(err) | |
316 | ||
317 | if (options.seek) this.seek(options.seek) | |
318 | if (options.forcePlay === false && paused === true) this.player.pause() | |
319 | ||
320 | return done() | |
321 | }) | |
322 | }) | |
323 | }, options.delay || 0) | |
324 | }) | |
325 | ||
326 | this.torrent.on('error', (err: any) => logger.error(err)) | |
327 | ||
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 | ||
332 | // Users don't care about issues with WebRTC, but developers do so log it in the console | |
333 | if (err.message.indexOf('Ice connection failed') !== -1) { | |
334 | logger.info(err) | |
335 | return | |
336 | } | |
337 | ||
338 | // Magnet hash is not up to date with the torrent file, add directly the torrent file | |
339 | if (err.message.indexOf('incorrect info hash') !== -1) { | |
340 | logger.error('Incorrect info hash detected, falling back to torrent file.') | |
341 | const newOptions = { forcePlay: true, seek: options.seek } | |
342 | return this.addTorrent(this.torrent['xs'], previousVideoFile, newOptions, done) | |
343 | } | |
344 | ||
345 | // Remote instance is down | |
346 | if (err.message.indexOf('from xs param') !== -1) { | |
347 | this.handleError(err) | |
348 | } | |
349 | ||
350 | logger.warn(err) | |
351 | }) | |
352 | } | |
353 | ||
354 | private tryToPlay (done?: (err?: Error) => void) { | |
355 | if (!done) done = function () { /* empty */ } | |
356 | ||
357 | const playPromise = this.player.play() | |
358 | if (playPromise !== undefined) { | |
359 | return playPromise.then(() => done()) | |
360 | .catch((err: Error) => { | |
361 | if (err.message.includes('The play() request was interrupted by a call to pause()')) { | |
362 | return | |
363 | } | |
364 | ||
365 | logger.warn(err) | |
366 | this.player.pause() | |
367 | this.player.posterImage.show() | |
368 | this.player.removeClass('vjs-has-autoplay') | |
369 | this.player.removeClass('vjs-has-big-play-button-clicked') | |
370 | this.player.removeClass('vjs-playing-audio-only-content') | |
371 | ||
372 | return done() | |
373 | }) | |
374 | } | |
375 | ||
376 | return done() | |
377 | } | |
378 | ||
379 | private seek (time: number) { | |
380 | this.player.currentTime(time) | |
381 | this.player.handleTechSeeked_() | |
382 | } | |
383 | ||
384 | private getAppropriateFile (averageDownloadSpeed?: number): VideoFile { | |
385 | if (this.videoFiles === undefined) return undefined | |
386 | if (this.videoFiles.length === 1) return this.videoFiles[0] | |
387 | ||
388 | const files = this.videoFiles.filter(f => f.resolution.id !== 0) | |
389 | if (files.length === 0) return undefined | |
390 | ||
391 | // Don't change the torrent if the player ended | |
392 | if (this.torrent && this.torrent.progress === 1 && this.player.ended()) return this.currentVideoFile | |
393 | ||
394 | if (!averageDownloadSpeed) averageDownloadSpeed = this.getAndSaveActualDownloadSpeed() | |
395 | ||
396 | // Limit resolution according to player height | |
397 | const playerHeight = this.playerElement.offsetHeight | |
398 | ||
399 | // We take the first resolution just above the player height | |
400 | // Example: player height is 530px, we want the 720p file instead of 480p | |
401 | let maxResolution = files[0].resolution.id | |
402 | for (let i = files.length - 1; i >= 0; i--) { | |
403 | const resolutionId = files[i].resolution.id | |
404 | if (resolutionId !== 0 && resolutionId >= playerHeight) { | |
405 | maxResolution = resolutionId | |
406 | break | |
407 | } | |
408 | } | |
409 | ||
410 | // Filter videos we can play according to our screen resolution and bandwidth | |
411 | const filteredFiles = files.filter(f => f.resolution.id <= maxResolution) | |
412 | .filter(f => { | |
413 | const fileBitrate = (f.size / this.videoDuration) | |
414 | let threshold = fileBitrate | |
415 | ||
416 | // If this is for a higher resolution or an initial load: add a margin | |
417 | if (!this.currentVideoFile || f.resolution.id > this.currentVideoFile.resolution.id) { | |
418 | threshold += ((fileBitrate * this.CONSTANTS.AUTO_QUALITY_THRESHOLD_PERCENT) / 100) | |
419 | } | |
420 | ||
421 | return averageDownloadSpeed > threshold | |
422 | }) | |
423 | ||
424 | // If the download speed is too bad, return the lowest resolution we have | |
425 | if (filteredFiles.length === 0) return videoFileMinByResolution(files) | |
426 | ||
427 | return videoFileMaxByResolution(filteredFiles) | |
428 | } | |
429 | ||
430 | private getAndSaveActualDownloadSpeed () { | |
431 | const start = Math.max(this.downloadSpeeds.length - this.CONSTANTS.BANDWIDTH_AVERAGE_NUMBER_OF_VALUES, 0) | |
432 | const lastDownloadSpeeds = this.downloadSpeeds.slice(start, this.downloadSpeeds.length) | |
433 | if (lastDownloadSpeeds.length === 0) return -1 | |
434 | ||
435 | const sum = lastDownloadSpeeds.reduce((a, b) => a + b) | |
436 | const averageBandwidth = Math.round(sum / lastDownloadSpeeds.length) | |
437 | ||
438 | // Save the average bandwidth for future use | |
439 | saveAverageBandwidth(averageBandwidth) | |
440 | ||
441 | return averageBandwidth | |
442 | } | |
443 | ||
444 | private initializePlayer () { | |
445 | this.buildQualities() | |
446 | ||
447 | if (this.videoFiles.length === 0) { | |
448 | this.player.addClass('disabled') | |
449 | return | |
450 | } | |
451 | ||
452 | if (this.autoplay !== false) { | |
453 | this.player.posterImage.hide() | |
454 | ||
455 | return this.updateVideoFile(undefined, { forcePlay: true, seek: this.startTime }) | |
456 | } | |
457 | ||
458 | // Proxy first play | |
459 | const oldPlay = this.player.play.bind(this.player); | |
460 | (this.player as any).play = () => { | |
461 | this.player.addClass('vjs-has-big-play-button-clicked') | |
462 | this.player.play = oldPlay | |
463 | ||
464 | this.updateVideoFile(undefined, { forcePlay: true, seek: this.startTime }) | |
465 | } | |
466 | } | |
467 | ||
468 | private runAutoQualityScheduler () { | |
469 | this.autoQualityInterval = setInterval(() => { | |
470 | ||
471 | // Not initialized or in HTTP fallback | |
472 | if (this.torrent === undefined || this.torrent === null) return | |
473 | if (this.autoResolution === false) return | |
474 | if (this.isAutoResolutionObservation === true) return | |
475 | ||
476 | const file = this.getAppropriateFile() | |
477 | let changeResolution = false | |
478 | let changeResolutionDelay = 0 | |
479 | ||
480 | // Lower resolution | |
481 | if (this.isPlayerWaiting() && file.resolution.id < this.currentVideoFile.resolution.id) { | |
482 | logger.info(`Downgrading automatically the resolution to: ${file.resolution.label}`) | |
483 | changeResolution = true | |
484 | } else if (file.resolution.id > this.currentVideoFile.resolution.id) { // Higher resolution | |
485 | logger.info(`Upgrading automatically the resolution to: ${file.resolution.label}`) | |
486 | changeResolution = true | |
487 | changeResolutionDelay = this.CONSTANTS.AUTO_QUALITY_HIGHER_RESOLUTION_DELAY | |
488 | } | |
489 | ||
490 | if (changeResolution === true) { | |
491 | this.updateEngineResolution(file.resolution.id, changeResolutionDelay) | |
492 | ||
493 | // Wait some seconds in observation of our new resolution | |
494 | this.isAutoResolutionObservation = true | |
495 | ||
496 | this.qualityObservationTimer = setTimeout(() => { | |
497 | this.isAutoResolutionObservation = false | |
498 | }, this.CONSTANTS.AUTO_QUALITY_OBSERVATION_TIME) | |
499 | } | |
500 | }, this.CONSTANTS.AUTO_QUALITY_SCHEDULER) | |
501 | } | |
502 | ||
503 | private isPlayerWaiting () { | |
504 | return this.player?.hasClass('vjs-waiting') | |
505 | } | |
506 | ||
507 | private runTorrentInfoScheduler () { | |
508 | this.torrentInfoInterval = setInterval(() => { | |
509 | // Not initialized yet | |
510 | if (this.torrent === undefined) return | |
511 | ||
512 | // Http fallback | |
513 | if (this.torrent === null) return this.player.trigger('p2pInfo', false) | |
514 | ||
515 | // this.webtorrent.downloadSpeed because we need to take into account the potential old torrent too | |
516 | if (this.webtorrent.downloadSpeed !== 0) this.downloadSpeeds.push(this.webtorrent.downloadSpeed) | |
517 | ||
518 | return this.player.trigger('p2pInfo', { | |
519 | source: 'webtorrent', | |
520 | http: { | |
521 | downloadSpeed: 0, | |
522 | downloaded: 0 | |
523 | }, | |
524 | p2p: { | |
525 | downloadSpeed: this.torrent.downloadSpeed, | |
526 | numPeers: this.torrent.numPeers, | |
527 | uploadSpeed: this.torrent.uploadSpeed, | |
528 | downloaded: this.torrent.downloaded, | |
529 | uploaded: this.torrent.uploaded | |
530 | }, | |
531 | bandwidthEstimate: this.webtorrent.downloadSpeed | |
532 | } as PlayerNetworkInfo) | |
533 | }, this.CONSTANTS.INFO_SCHEDULER) | |
534 | } | |
535 | ||
536 | private fallbackToHttp (options: PlayOptions, done?: (err?: Error) => void) { | |
537 | const paused = this.player.paused() | |
538 | ||
539 | this.disableAutoResolution() | |
540 | ||
541 | this.flushVideoFile(this.currentVideoFile, true) | |
542 | this.torrent = null | |
543 | ||
544 | // Enable error display now this is our last fallback | |
545 | this.player.one('error', () => this.player.peertube().displayFatalError()) | |
546 | ||
547 | let httpUrl = this.currentVideoFile.fileUrl | |
548 | ||
549 | if (this.requiresAuth && this.videoFileToken) { | |
550 | httpUrl = addQueryParams(httpUrl, { videoFileToken: this.videoFileToken() }) | |
551 | } | |
552 | ||
553 | this.player.src = this.savePlayerSrcFunction | |
554 | this.player.src(httpUrl) | |
555 | ||
556 | this.selectAppropriateResolution(true) | |
557 | ||
558 | // We changed the source, so reinit captions | |
559 | this.player.trigger('sourcechange') | |
560 | ||
561 | return this.tryToPlay(err => { | |
562 | if (err && done) return done(err) | |
563 | ||
564 | if (options.seek) this.seek(options.seek) | |
565 | if (options.forcePlay === false && paused === true) this.player.pause() | |
566 | ||
567 | if (done) return done() | |
568 | }) | |
569 | } | |
570 | ||
571 | private handleError (err: Error | string) { | |
572 | return this.player.trigger('customError', { err }) | |
573 | } | |
574 | ||
575 | private pickAverageVideoFile () { | |
576 | if (this.videoFiles.length === 1) return this.videoFiles[0] | |
577 | ||
578 | const files = this.videoFiles.filter(f => f.resolution.id !== 0) | |
579 | return files[Math.floor(files.length / 2)] | |
580 | } | |
581 | ||
582 | private stopTorrent (torrent: WebTorrent.Torrent) { | |
583 | torrent.pause() | |
584 | // Pause does not remove actual peers (in particular the webseed peer) | |
585 | torrent.removePeer(torrent['ws']) | |
586 | } | |
587 | ||
588 | private renderFileInFakeElement (file: WebTorrent.TorrentFile, delay: number) { | |
589 | this.destroyingFakeRenderer = false | |
590 | ||
591 | const fakeVideoElem = document.createElement('video') | |
592 | renderVideo(file, fakeVideoElem, { autoplay: false, controls: false }, (err, renderer) => { | |
593 | this.fakeRenderer = renderer | |
594 | ||
595 | // The renderer returns an error when we destroy it, so skip them | |
596 | if (this.destroyingFakeRenderer === false && err) { | |
597 | logger.error('Cannot render new torrent in fake video element.', err) | |
598 | } | |
599 | ||
600 | // Load the future file at the correct time (in delay MS - 2 seconds) | |
601 | fakeVideoElem.currentTime = this.player.currentTime() + (delay - 2000) | |
602 | }) | |
603 | } | |
604 | ||
605 | private destroyFakeRenderer () { | |
606 | if (this.fakeRenderer) { | |
607 | this.destroyingFakeRenderer = true | |
608 | ||
609 | if (this.fakeRenderer.destroy) { | |
610 | try { | |
611 | this.fakeRenderer.destroy() | |
612 | } catch (err) { | |
613 | logger.info('Cannot destroy correctly fake renderer.', err) | |
614 | } | |
615 | } | |
616 | this.fakeRenderer = undefined | |
617 | } | |
618 | } | |
619 | ||
620 | private buildQualities () { | |
621 | const resolutions: PeerTubeResolution[] = this.videoFiles.map(file => ({ | |
622 | id: file.resolution.id, | |
623 | label: this.buildQualityLabel(file), | |
624 | height: file.resolution.id, | |
625 | selected: false, | |
626 | selectCallback: () => this.changeQuality(file.resolution.id) | |
627 | })) | |
628 | ||
629 | resolutions.push({ | |
630 | id: -1, | |
631 | label: this.player.localize('Auto'), | |
632 | selected: true, | |
633 | selectCallback: () => this.changeQuality(-1) | |
634 | }) | |
635 | ||
636 | this.player.peertubeResolutions().add(resolutions) | |
637 | } | |
638 | ||
639 | private buildQualityLabel (file: VideoFile) { | |
640 | let label = file.resolution.label | |
641 | ||
642 | if (file.fps && file.fps >= 50) { | |
643 | label += file.fps | |
644 | } | |
645 | ||
646 | return label | |
647 | } | |
648 | ||
649 | private selectAppropriateResolution (byEngine: boolean) { | |
650 | const resolution = this.autoResolution | |
651 | ? -1 | |
652 | : this.getCurrentResolutionId() | |
653 | ||
654 | const autoResolutionChosen = this.autoResolution | |
655 | ? this.getCurrentResolutionId() | |
656 | : undefined | |
657 | ||
658 | this.player.peertubeResolutions().select({ id: resolution, autoResolutionChosenId: autoResolutionChosen, byEngine }) | |
659 | } | |
660 | } | |
661 | ||
662 | videojs.registerPlugin('webtorrent', WebTorrentPlugin) | |
663 | export { WebTorrentPlugin } |