]>
Commit | Line | Data |
---|---|---|
1 | import videojs, { VideoJsPlayer } from 'video.js' | |
2 | ||
3 | import * as WebTorrent from 'webtorrent' | |
4 | import { renderVideo } from './video-renderer' | |
5 | import { LoadedQualityData, PlayerNetworkInfo, WebtorrentPluginOptions } from '../peertube-videojs-typings' | |
6 | import { getRtcConfig, timeToInt, videoFileMaxByResolution, videoFileMinByResolution } from '../utils' | |
7 | import { PeertubeChunkStore } from './peertube-chunk-store' | |
8 | import { | |
9 | getAverageBandwidthInStore, | |
10 | getStoredMute, | |
11 | getStoredP2PEnabled, | |
12 | getStoredVolume, | |
13 | saveAverageBandwidth | |
14 | } from '../peertube-player-local-storage' | |
15 | import { VideoFile } from '@shared/models' | |
16 | ||
17 | const CacheChunkStore = require('cache-chunk-store') | |
18 | ||
19 | type PlayOptions = { | |
20 | forcePlay?: boolean, | |
21 | seek?: number, | |
22 | delay?: number | |
23 | } | |
24 | ||
25 | const Plugin = videojs.getPlugin('plugin') | |
26 | ||
27 | class WebTorrentPlugin extends Plugin { | |
28 | readonly videoFiles: VideoFile[] | |
29 | ||
30 | private readonly playerElement: HTMLVideoElement | |
31 | ||
32 | private readonly autoplay: boolean = false | |
33 | private readonly startTime: number = 0 | |
34 | private readonly savePlayerSrcFunction: VideoJsPlayer['src'] | |
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 currentVideoFile: VideoFile | |
53 | private torrent: WebTorrent.Torrent | |
54 | ||
55 | private renderer: any | |
56 | private fakeRenderer: any | |
57 | private destroyingFakeRenderer = false | |
58 | ||
59 | private autoResolution = true | |
60 | private autoResolutionPossible = true | |
61 | private isAutoResolutionObservation = false | |
62 | private playerRefusedP2P = false | |
63 | ||
64 | private torrentInfoInterval: any | |
65 | private autoQualityInterval: any | |
66 | private addTorrentDelay: any | |
67 | private qualityObservationTimer: any | |
68 | private runAutoQualitySchedulerTimer: any | |
69 | ||
70 | private downloadSpeeds: number[] = [] | |
71 | ||
72 | constructor (player: VideoJsPlayer, options?: WebtorrentPluginOptions) { | |
73 | super(player) | |
74 | ||
75 | this.startTime = timeToInt(options.startTime) | |
76 | ||
77 | // Disable auto play on iOS | |
78 | this.autoplay = options.autoplay && this.isIOS() === false | |
79 | this.playerRefusedP2P = !getStoredP2PEnabled() | |
80 | ||
81 | this.videoFiles = options.videoFiles | |
82 | this.videoDuration = options.videoDuration | |
83 | ||
84 | this.savePlayerSrcFunction = this.player.src | |
85 | this.playerElement = options.playerElement | |
86 | ||
87 | this.player.ready(() => { | |
88 | const playerOptions = this.player.options_ | |
89 | ||
90 | const volume = getStoredVolume() | |
91 | if (volume !== undefined) this.player.volume(volume) | |
92 | ||
93 | const muted = playerOptions.muted !== undefined ? playerOptions.muted : getStoredMute() | |
94 | if (muted !== undefined) this.player.muted(muted) | |
95 | ||
96 | this.player.duration(options.videoDuration) | |
97 | ||
98 | this.initializePlayer() | |
99 | this.runTorrentInfoScheduler() | |
100 | ||
101 | this.player.one('play', () => { | |
102 | // Don't run immediately scheduler, wait some seconds the TCP connections are made | |
103 | this.runAutoQualitySchedulerTimer = setTimeout(() => this.runAutoQualityScheduler(), this.CONSTANTS.AUTO_QUALITY_SCHEDULER) | |
104 | }) | |
105 | }) | |
106 | } | |
107 | ||
108 | dispose () { | |
109 | clearTimeout(this.addTorrentDelay) | |
110 | clearTimeout(this.qualityObservationTimer) | |
111 | clearTimeout(this.runAutoQualitySchedulerTimer) | |
112 | ||
113 | clearInterval(this.torrentInfoInterval) | |
114 | clearInterval(this.autoQualityInterval) | |
115 | ||
116 | // Don't need to destroy renderer, video player will be destroyed | |
117 | this.flushVideoFile(this.currentVideoFile, false) | |
118 | ||
119 | this.destroyFakeRenderer() | |
120 | } | |
121 | ||
122 | getCurrentResolutionId () { | |
123 | return this.currentVideoFile ? this.currentVideoFile.resolution.id : -1 | |
124 | } | |
125 | ||
126 | updateVideoFile ( | |
127 | videoFile?: VideoFile, | |
128 | options: { | |
129 | forcePlay?: boolean, | |
130 | seek?: number, | |
131 | delay?: number | |
132 | } = {}, | |
133 | done: () => void = () => { /* empty */ } | |
134 | ) { | |
135 | // Automatically choose the adapted video file | |
136 | if (videoFile === undefined) { | |
137 | const savedAverageBandwidth = getAverageBandwidthInStore() | |
138 | videoFile = savedAverageBandwidth | |
139 | ? this.getAppropriateFile(savedAverageBandwidth) | |
140 | : this.pickAverageVideoFile() | |
141 | } | |
142 | ||
143 | // Don't add the same video file once again | |
144 | if (this.currentVideoFile !== undefined && this.currentVideoFile.magnetUri === videoFile.magnetUri) { | |
145 | return | |
146 | } | |
147 | ||
148 | // Do not display error to user because we will have multiple fallback | |
149 | this.disableErrorDisplay(); | |
150 | ||
151 | // Hack to "simulate" src link in video.js >= 6 | |
152 | // Without this, we can't play the video after pausing it | |
153 | // https://github.com/videojs/video.js/blob/master/src/js/player.js#L1633 | |
154 | (this.player as any).src = () => true | |
155 | const oldPlaybackRate = this.player.playbackRate() | |
156 | ||
157 | const previousVideoFile = this.currentVideoFile | |
158 | this.currentVideoFile = videoFile | |
159 | ||
160 | // Don't try on iOS that does not support MediaSource | |
161 | // Or don't use P2P if webtorrent is disabled | |
162 | if (this.isIOS() || this.playerRefusedP2P) { | |
163 | return this.fallbackToHttp(options, () => { | |
164 | this.player.playbackRate(oldPlaybackRate) | |
165 | return done() | |
166 | }) | |
167 | } | |
168 | ||
169 | this.addTorrent(this.currentVideoFile.magnetUri, previousVideoFile, options, () => { | |
170 | this.player.playbackRate(oldPlaybackRate) | |
171 | return done() | |
172 | }) | |
173 | ||
174 | this.changeQuality() | |
175 | this.trigger('resolutionChange', { auto: this.autoResolution, resolutionId: this.currentVideoFile.resolution.id }) | |
176 | } | |
177 | ||
178 | updateResolution (resolutionId: number, delay = 0) { | |
179 | // Remember player state | |
180 | const currentTime = this.player.currentTime() | |
181 | const isPaused = this.player.paused() | |
182 | ||
183 | // Hide bigPlayButton | |
184 | if (!isPaused) { | |
185 | this.player.bigPlayButton.hide() | |
186 | } | |
187 | ||
188 | // Audio-only (resolutionId === 0) gets special treatment | |
189 | if (resolutionId === 0) { | |
190 | // Audio-only: show poster, do not auto-hide controls | |
191 | this.player.addClass('vjs-playing-audio-only-content') | |
192 | this.player.posterImage.show() | |
193 | } else { | |
194 | // Hide poster to have black background | |
195 | this.player.removeClass('vjs-playing-audio-only-content') | |
196 | this.player.posterImage.hide() | |
197 | } | |
198 | ||
199 | const newVideoFile = this.videoFiles.find(f => f.resolution.id === resolutionId) | |
200 | const options = { | |
201 | forcePlay: false, | |
202 | delay, | |
203 | seek: currentTime + (delay / 1000) | |
204 | } | |
205 | ||
206 | this.updateVideoFile(newVideoFile, options) | |
207 | } | |
208 | ||
209 | flushVideoFile (videoFile: VideoFile, destroyRenderer = true) { | |
210 | if (videoFile !== undefined && this.webtorrent.get(videoFile.magnetUri)) { | |
211 | if (destroyRenderer === true && this.renderer && this.renderer.destroy) this.renderer.destroy() | |
212 | ||
213 | this.webtorrent.remove(videoFile.magnetUri) | |
214 | console.log('Removed ' + videoFile.magnetUri) | |
215 | } | |
216 | } | |
217 | ||
218 | enableAutoResolution () { | |
219 | this.autoResolution = true | |
220 | this.trigger('resolutionChange', { auto: this.autoResolution, resolutionId: this.getCurrentResolutionId() }) | |
221 | } | |
222 | ||
223 | disableAutoResolution (forbid = false) { | |
224 | if (forbid === true) this.autoResolutionPossible = false | |
225 | ||
226 | this.autoResolution = false | |
227 | this.trigger('autoResolutionChange', { possible: this.autoResolutionPossible }) | |
228 | this.trigger('resolutionChange', { auto: this.autoResolution, resolutionId: this.getCurrentResolutionId() }) | |
229 | } | |
230 | ||
231 | isAutoResolutionPossible () { | |
232 | return this.autoResolutionPossible | |
233 | } | |
234 | ||
235 | getTorrent () { | |
236 | return this.torrent | |
237 | } | |
238 | ||
239 | getCurrentVideoFile () { | |
240 | return this.currentVideoFile | |
241 | } | |
242 | ||
243 | private addTorrent ( | |
244 | magnetOrTorrentUrl: string, | |
245 | previousVideoFile: VideoFile, | |
246 | options: PlayOptions, | |
247 | done: Function | |
248 | ) { | |
249 | console.log('Adding ' + magnetOrTorrentUrl + '.') | |
250 | ||
251 | const oldTorrent = this.torrent | |
252 | const torrentOptions = { | |
253 | // Don't use arrow function: it breaks webtorrent (that uses `new` keyword) | |
254 | store: function (chunkLength: number, storeOpts: any) { | |
255 | return new CacheChunkStore(new PeertubeChunkStore(chunkLength, storeOpts), { | |
256 | max: 100 | |
257 | }) | |
258 | } | |
259 | } | |
260 | ||
261 | this.torrent = this.webtorrent.add(magnetOrTorrentUrl, torrentOptions, torrent => { | |
262 | console.log('Added ' + magnetOrTorrentUrl + '.') | |
263 | ||
264 | if (oldTorrent) { | |
265 | // Pause the old torrent | |
266 | this.stopTorrent(oldTorrent) | |
267 | ||
268 | // We use a fake renderer so we download correct pieces of the next file | |
269 | if (options.delay) this.renderFileInFakeElement(torrent.files[ 0 ], options.delay) | |
270 | } | |
271 | ||
272 | // Render the video in a few seconds? (on resolution change for example, we wait some seconds of the new video resolution) | |
273 | this.addTorrentDelay = setTimeout(() => { | |
274 | // We don't need the fake renderer anymore | |
275 | this.destroyFakeRenderer() | |
276 | ||
277 | const paused = this.player.paused() | |
278 | ||
279 | this.flushVideoFile(previousVideoFile) | |
280 | ||
281 | // Update progress bar (just for the UI), do not wait rendering | |
282 | if (options.seek) this.player.currentTime(options.seek) | |
283 | ||
284 | const renderVideoOptions = { autoplay: false, controls: true } | |
285 | renderVideo(torrent.files[ 0 ], this.playerElement, renderVideoOptions, (err, renderer) => { | |
286 | this.renderer = renderer | |
287 | ||
288 | if (err) return this.fallbackToHttp(options, done) | |
289 | ||
290 | return this.tryToPlay(err => { | |
291 | if (err) return done(err) | |
292 | ||
293 | if (options.seek) this.seek(options.seek) | |
294 | if (options.forcePlay === false && paused === true) this.player.pause() | |
295 | ||
296 | return done() | |
297 | }) | |
298 | }) | |
299 | }, options.delay || 0) | |
300 | }) | |
301 | ||
302 | this.torrent.on('error', (err: any) => console.error(err)) | |
303 | ||
304 | this.torrent.on('warning', (err: any) => { | |
305 | // We don't support HTTP tracker but we don't care -> we use the web socket tracker | |
306 | if (err.message.indexOf('Unsupported tracker protocol') !== -1) return | |
307 | ||
308 | // Users don't care about issues with WebRTC, but developers do so log it in the console | |
309 | if (err.message.indexOf('Ice connection failed') !== -1) { | |
310 | console.log(err) | |
311 | return | |
312 | } | |
313 | ||
314 | // Magnet hash is not up to date with the torrent file, add directly the torrent file | |
315 | if (err.message.indexOf('incorrect info hash') !== -1) { | |
316 | console.error('Incorrect info hash detected, falling back to torrent file.') | |
317 | const newOptions = { forcePlay: true, seek: options.seek } | |
318 | return this.addTorrent(this.torrent[ 'xs' ], previousVideoFile, newOptions, done) | |
319 | } | |
320 | ||
321 | // Remote instance is down | |
322 | if (err.message.indexOf('from xs param') !== -1) { | |
323 | this.handleError(err) | |
324 | } | |
325 | ||
326 | console.warn(err) | |
327 | }) | |
328 | } | |
329 | ||
330 | private tryToPlay (done?: (err?: Error) => void) { | |
331 | if (!done) done = function () { /* empty */ } | |
332 | ||
333 | const playPromise = this.player.play() | |
334 | if (playPromise !== undefined) { | |
335 | return playPromise.then(() => done()) | |
336 | .catch((err: Error) => { | |
337 | if (err.message.indexOf('The play() request was interrupted by a call to pause()') !== -1) { | |
338 | return | |
339 | } | |
340 | ||
341 | console.error(err) | |
342 | this.player.pause() | |
343 | this.player.posterImage.show() | |
344 | this.player.removeClass('vjs-has-autoplay') | |
345 | this.player.removeClass('vjs-has-big-play-button-clicked') | |
346 | this.player.removeClass('vjs-playing-audio-only-content') | |
347 | ||
348 | return done() | |
349 | }) | |
350 | } | |
351 | ||
352 | return done() | |
353 | } | |
354 | ||
355 | private seek (time: number) { | |
356 | this.player.currentTime(time) | |
357 | this.player.handleTechSeeked_() | |
358 | } | |
359 | ||
360 | private getAppropriateFile (averageDownloadSpeed?: number): VideoFile { | |
361 | if (this.videoFiles === undefined || this.videoFiles.length === 0) return undefined | |
362 | if (this.videoFiles.length === 1) return this.videoFiles[0] | |
363 | ||
364 | // Don't change the torrent is the play was ended | |
365 | if (this.torrent && this.torrent.progress === 1 && this.player.ended()) return this.currentVideoFile | |
366 | ||
367 | if (!averageDownloadSpeed) averageDownloadSpeed = this.getAndSaveActualDownloadSpeed() | |
368 | ||
369 | // Limit resolution according to player height | |
370 | const playerHeight = this.playerElement.offsetHeight | |
371 | ||
372 | // We take the first resolution just above the player height | |
373 | // Example: player height is 530px, we want the 720p file instead of 480p | |
374 | let maxResolution = this.videoFiles[0].resolution.id | |
375 | for (let i = this.videoFiles.length - 1; i >= 0; i--) { | |
376 | const resolutionId = this.videoFiles[i].resolution.id | |
377 | if (resolutionId >= playerHeight) { | |
378 | maxResolution = resolutionId | |
379 | break | |
380 | } | |
381 | } | |
382 | ||
383 | // Filter videos we can play according to our screen resolution and bandwidth | |
384 | const filteredFiles = this.videoFiles | |
385 | .filter(f => f.resolution.id <= maxResolution) | |
386 | .filter(f => { | |
387 | const fileBitrate = (f.size / this.videoDuration) | |
388 | let threshold = fileBitrate | |
389 | ||
390 | // If this is for a higher resolution or an initial load: add a margin | |
391 | if (!this.currentVideoFile || f.resolution.id > this.currentVideoFile.resolution.id) { | |
392 | threshold += ((fileBitrate * this.CONSTANTS.AUTO_QUALITY_THRESHOLD_PERCENT) / 100) | |
393 | } | |
394 | ||
395 | return averageDownloadSpeed > threshold | |
396 | }) | |
397 | ||
398 | // If the download speed is too bad, return the lowest resolution we have | |
399 | if (filteredFiles.length === 0) return videoFileMinByResolution(this.videoFiles) | |
400 | ||
401 | return videoFileMaxByResolution(filteredFiles) | |
402 | } | |
403 | ||
404 | private getAndSaveActualDownloadSpeed () { | |
405 | const start = Math.max(this.downloadSpeeds.length - this.CONSTANTS.BANDWIDTH_AVERAGE_NUMBER_OF_VALUES, 0) | |
406 | const lastDownloadSpeeds = this.downloadSpeeds.slice(start, this.downloadSpeeds.length) | |
407 | if (lastDownloadSpeeds.length === 0) return -1 | |
408 | ||
409 | const sum = lastDownloadSpeeds.reduce((a, b) => a + b) | |
410 | const averageBandwidth = Math.round(sum / lastDownloadSpeeds.length) | |
411 | ||
412 | // Save the average bandwidth for future use | |
413 | saveAverageBandwidth(averageBandwidth) | |
414 | ||
415 | return averageBandwidth | |
416 | } | |
417 | ||
418 | private initializePlayer () { | |
419 | this.buildQualities() | |
420 | ||
421 | if (this.autoplay === true) { | |
422 | this.player.posterImage.hide() | |
423 | ||
424 | return this.updateVideoFile(undefined, { forcePlay: true, seek: this.startTime }) | |
425 | } | |
426 | ||
427 | // Proxy first play | |
428 | const oldPlay = this.player.play.bind(this.player); | |
429 | (this.player as any).play = () => { | |
430 | this.player.addClass('vjs-has-big-play-button-clicked') | |
431 | this.player.play = oldPlay | |
432 | ||
433 | this.updateVideoFile(undefined, { forcePlay: true, seek: this.startTime }) | |
434 | } | |
435 | } | |
436 | ||
437 | private runAutoQualityScheduler () { | |
438 | this.autoQualityInterval = setInterval(() => { | |
439 | ||
440 | // Not initialized or in HTTP fallback | |
441 | if (this.torrent === undefined || this.torrent === null) return | |
442 | if (this.autoResolution === false) return | |
443 | if (this.isAutoResolutionObservation === true) return | |
444 | ||
445 | const file = this.getAppropriateFile() | |
446 | let changeResolution = false | |
447 | let changeResolutionDelay = 0 | |
448 | ||
449 | // Lower resolution | |
450 | if (this.isPlayerWaiting() && file.resolution.id < this.currentVideoFile.resolution.id) { | |
451 | console.log('Downgrading automatically the resolution to: %s', file.resolution.label) | |
452 | changeResolution = true | |
453 | } else if (file.resolution.id > this.currentVideoFile.resolution.id) { // Higher resolution | |
454 | console.log('Upgrading automatically the resolution to: %s', file.resolution.label) | |
455 | changeResolution = true | |
456 | changeResolutionDelay = this.CONSTANTS.AUTO_QUALITY_HIGHER_RESOLUTION_DELAY | |
457 | } | |
458 | ||
459 | if (changeResolution === true) { | |
460 | this.updateResolution(file.resolution.id, changeResolutionDelay) | |
461 | ||
462 | // Wait some seconds in observation of our new resolution | |
463 | this.isAutoResolutionObservation = true | |
464 | ||
465 | this.qualityObservationTimer = setTimeout(() => { | |
466 | this.isAutoResolutionObservation = false | |
467 | }, this.CONSTANTS.AUTO_QUALITY_OBSERVATION_TIME) | |
468 | } | |
469 | }, this.CONSTANTS.AUTO_QUALITY_SCHEDULER) | |
470 | } | |
471 | ||
472 | private isPlayerWaiting () { | |
473 | return this.player && this.player.hasClass('vjs-waiting') | |
474 | } | |
475 | ||
476 | private runTorrentInfoScheduler () { | |
477 | this.torrentInfoInterval = setInterval(() => { | |
478 | // Not initialized yet | |
479 | if (this.torrent === undefined) return | |
480 | ||
481 | // Http fallback | |
482 | if (this.torrent === null) return this.player.trigger('p2pInfo', false) | |
483 | ||
484 | // this.webtorrent.downloadSpeed because we need to take into account the potential old torrent too | |
485 | if (this.webtorrent.downloadSpeed !== 0) this.downloadSpeeds.push(this.webtorrent.downloadSpeed) | |
486 | ||
487 | return this.player.trigger('p2pInfo', { | |
488 | http: { | |
489 | downloadSpeed: 0, | |
490 | uploadSpeed: 0, | |
491 | downloaded: 0, | |
492 | uploaded: 0 | |
493 | }, | |
494 | p2p: { | |
495 | downloadSpeed: this.torrent.downloadSpeed, | |
496 | numPeers: this.torrent.numPeers, | |
497 | uploadSpeed: this.torrent.uploadSpeed, | |
498 | downloaded: this.torrent.downloaded, | |
499 | uploaded: this.torrent.uploaded | |
500 | } | |
501 | } as PlayerNetworkInfo) | |
502 | }, this.CONSTANTS.INFO_SCHEDULER) | |
503 | } | |
504 | ||
505 | private fallbackToHttp (options: PlayOptions, done?: Function) { | |
506 | const paused = this.player.paused() | |
507 | ||
508 | this.disableAutoResolution(true) | |
509 | ||
510 | this.flushVideoFile(this.currentVideoFile, true) | |
511 | this.torrent = null | |
512 | ||
513 | // Enable error display now this is our last fallback | |
514 | this.player.one('error', () => this.enableErrorDisplay()) | |
515 | ||
516 | const httpUrl = this.currentVideoFile.fileUrl | |
517 | this.player.src = this.savePlayerSrcFunction | |
518 | this.player.src(httpUrl) | |
519 | ||
520 | this.changeQuality() | |
521 | ||
522 | // We changed the source, so reinit captions | |
523 | this.player.trigger('sourcechange') | |
524 | ||
525 | return this.tryToPlay(err => { | |
526 | if (err && done) return done(err) | |
527 | ||
528 | if (options.seek) this.seek(options.seek) | |
529 | if (options.forcePlay === false && paused === true) this.player.pause() | |
530 | ||
531 | if (done) return done() | |
532 | }) | |
533 | } | |
534 | ||
535 | private handleError (err: Error | string) { | |
536 | return this.player.trigger('customError', { err }) | |
537 | } | |
538 | ||
539 | private enableErrorDisplay () { | |
540 | this.player.addClass('vjs-error-display-enabled') | |
541 | } | |
542 | ||
543 | private disableErrorDisplay () { | |
544 | this.player.removeClass('vjs-error-display-enabled') | |
545 | } | |
546 | ||
547 | private isIOS () { | |
548 | return !!navigator.platform && /iPad|iPhone|iPod/.test(navigator.platform) | |
549 | } | |
550 | ||
551 | private pickAverageVideoFile () { | |
552 | if (this.videoFiles.length === 1) return this.videoFiles[0] | |
553 | ||
554 | return this.videoFiles[Math.floor(this.videoFiles.length / 2)] | |
555 | } | |
556 | ||
557 | private stopTorrent (torrent: WebTorrent.Torrent) { | |
558 | torrent.pause() | |
559 | // Pause does not remove actual peers (in particular the webseed peer) | |
560 | torrent.removePeer(torrent[ 'ws' ]) | |
561 | } | |
562 | ||
563 | private renderFileInFakeElement (file: WebTorrent.TorrentFile, delay: number) { | |
564 | this.destroyingFakeRenderer = false | |
565 | ||
566 | const fakeVideoElem = document.createElement('video') | |
567 | renderVideo(file, fakeVideoElem, { autoplay: false, controls: false }, (err, renderer) => { | |
568 | this.fakeRenderer = renderer | |
569 | ||
570 | // The renderer returns an error when we destroy it, so skip them | |
571 | if (this.destroyingFakeRenderer === false && err) { | |
572 | console.error('Cannot render new torrent in fake video element.', err) | |
573 | } | |
574 | ||
575 | // Load the future file at the correct time (in delay MS - 2 seconds) | |
576 | fakeVideoElem.currentTime = this.player.currentTime() + (delay - 2000) | |
577 | }) | |
578 | } | |
579 | ||
580 | private destroyFakeRenderer () { | |
581 | if (this.fakeRenderer) { | |
582 | this.destroyingFakeRenderer = true | |
583 | ||
584 | if (this.fakeRenderer.destroy) { | |
585 | try { | |
586 | this.fakeRenderer.destroy() | |
587 | } catch (err) { | |
588 | console.log('Cannot destroy correctly fake renderer.', err) | |
589 | } | |
590 | } | |
591 | this.fakeRenderer = undefined | |
592 | } | |
593 | } | |
594 | ||
595 | private buildQualities () { | |
596 | const qualityLevelsPayload = [] | |
597 | ||
598 | for (const file of this.videoFiles) { | |
599 | const representation = { | |
600 | id: file.resolution.id, | |
601 | label: this.buildQualityLabel(file), | |
602 | height: file.resolution.id, | |
603 | _enabled: true | |
604 | } | |
605 | ||
606 | this.player.qualityLevels().addQualityLevel(representation) | |
607 | ||
608 | qualityLevelsPayload.push({ | |
609 | id: representation.id, | |
610 | label: representation.label, | |
611 | selected: false | |
612 | }) | |
613 | } | |
614 | ||
615 | const payload: LoadedQualityData = { | |
616 | qualitySwitchCallback: (d: any) => this.qualitySwitchCallback(d), | |
617 | qualityData: { | |
618 | video: qualityLevelsPayload | |
619 | } | |
620 | } | |
621 | this.player.tech(true).trigger('loadedqualitydata', payload) | |
622 | } | |
623 | ||
624 | private buildQualityLabel (file: VideoFile) { | |
625 | let label = file.resolution.label | |
626 | ||
627 | if (file.fps && file.fps >= 50) { | |
628 | label += file.fps | |
629 | } | |
630 | ||
631 | return label | |
632 | } | |
633 | ||
634 | private qualitySwitchCallback (id: number) { | |
635 | if (id === -1) { | |
636 | if (this.autoResolutionPossible === true) this.enableAutoResolution() | |
637 | return | |
638 | } | |
639 | ||
640 | this.disableAutoResolution() | |
641 | this.updateResolution(id) | |
642 | } | |
643 | ||
644 | private changeQuality () { | |
645 | const resolutionId = this.currentVideoFile.resolution.id | |
646 | const qualityLevels = this.player.qualityLevels() | |
647 | ||
648 | if (resolutionId === -1) { | |
649 | qualityLevels.selectedIndex = -1 | |
650 | return | |
651 | } | |
652 | ||
653 | for (let i = 0; i < qualityLevels.length; i++) { | |
654 | const q = qualityLevels[i] | |
655 | if (q.height === resolutionId) qualityLevels.selectedIndex_ = i | |
656 | } | |
657 | } | |
658 | } | |
659 | ||
660 | videojs.registerPlugin('webtorrent', WebTorrentPlugin) | |
661 | export { WebTorrentPlugin } |