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author | Chocobozzz <me@florianbigard.com> | 2019-01-23 15:36:45 +0100 |
---|---|---|
committer | Chocobozzz <chocobozzz@cpy.re> | 2019-02-11 09:13:02 +0100 |
commit | 2adfc7ea9a1f858db874df9fe322e7ae833db77c (patch) | |
tree | e27c6ebe01b7c96ea0e053839a38fc1f824d1284 /client/src/assets/player/webtorrent-plugin.ts | |
parent | 7eeb6a0ba4028d0e20847b846332dd0b7747c7f8 (diff) | |
download | PeerTube-2adfc7ea9a1f858db874df9fe322e7ae833db77c.tar.gz PeerTube-2adfc7ea9a1f858db874df9fe322e7ae833db77c.tar.zst PeerTube-2adfc7ea9a1f858db874df9fe322e7ae833db77c.zip |
Refractor videojs player
Add fake p2p-media-loader plugin
Diffstat (limited to 'client/src/assets/player/webtorrent-plugin.ts')
-rw-r--r-- | client/src/assets/player/webtorrent-plugin.ts | 640 |
1 files changed, 640 insertions, 0 deletions
diff --git a/client/src/assets/player/webtorrent-plugin.ts b/client/src/assets/player/webtorrent-plugin.ts new file mode 100644 index 000000000..c3d990aed --- /dev/null +++ b/client/src/assets/player/webtorrent-plugin.ts | |||
@@ -0,0 +1,640 @@ | |||
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 './webtorrent/video-renderer' | ||
8 | import { LoadedQualityData, VideoJSComponentInterface, WebtorrentPluginOptions } from './peertube-videojs-typings' | ||
9 | import { videoFileMaxByResolution, videoFileMinByResolution } from './utils' | ||
10 | import { PeertubeChunkStore } from './webtorrent/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: { | ||
48 | iceServers: [ | ||
49 | { | ||
50 | urls: 'stun:stun.stunprotocol.org' | ||
51 | }, | ||
52 | { | ||
53 | urls: 'stun:stun.framasoft.org' | ||
54 | } | ||
55 | ] | ||
56 | } | ||
57 | }, | ||
58 | dht: false | ||
59 | }) | ||
60 | |||
61 | private player: any | ||
62 | private currentVideoFile: VideoFile | ||
63 | private torrent: WebTorrent.Torrent | ||
64 | |||
65 | private renderer: any | ||
66 | private fakeRenderer: any | ||
67 | private destroyingFakeRenderer = false | ||
68 | |||
69 | private autoResolution = true | ||
70 | private autoResolutionPossible = true | ||
71 | private isAutoResolutionObservation = false | ||
72 | private playerRefusedP2P = false | ||
73 | |||
74 | private torrentInfoInterval: any | ||
75 | private autoQualityInterval: any | ||
76 | private addTorrentDelay: any | ||
77 | private qualityObservationTimer: any | ||
78 | private runAutoQualitySchedulerTimer: any | ||
79 | |||
80 | private downloadSpeeds: number[] = [] | ||
81 | |||
82 | constructor (player: videojs.Player, options: WebtorrentPluginOptions) { | ||
83 | super(player, options) | ||
84 | |||
85 | // Disable auto play on iOS | ||
86 | this.autoplay = options.autoplay && this.isIOS() === false | ||
87 | this.playerRefusedP2P = !getStoredWebTorrentEnabled() | ||
88 | |||
89 | this.videoFiles = options.videoFiles | ||
90 | this.videoDuration = options.videoDuration | ||
91 | |||
92 | this.savePlayerSrcFunction = this.player.src | ||
93 | this.playerElement = options.playerElement | ||
94 | |||
95 | this.player.ready(() => { | ||
96 | const playerOptions = this.player.options_ | ||
97 | |||
98 | const volume = getStoredVolume() | ||
99 | if (volume !== undefined) this.player.volume(volume) | ||
100 | |||
101 | const muted = playerOptions.muted !== undefined ? playerOptions.muted : getStoredMute() | ||
102 | if (muted !== undefined) this.player.muted(muted) | ||
103 | |||
104 | this.player.duration(options.videoDuration) | ||
105 | |||
106 | this.initializePlayer() | ||
107 | this.runTorrentInfoScheduler() | ||
108 | |||
109 | this.player.one('play', () => { | ||
110 | // Don't run immediately scheduler, wait some seconds the TCP connections are made | ||
111 | this.runAutoQualitySchedulerTimer = setTimeout(() => this.runAutoQualityScheduler(), this.CONSTANTS.AUTO_QUALITY_SCHEDULER) | ||
112 | }) | ||
113 | }) | ||
114 | } | ||
115 | |||
116 | dispose () { | ||
117 | clearTimeout(this.addTorrentDelay) | ||
118 | clearTimeout(this.qualityObservationTimer) | ||
119 | clearTimeout(this.runAutoQualitySchedulerTimer) | ||
120 | |||
121 | clearInterval(this.torrentInfoInterval) | ||
122 | clearInterval(this.autoQualityInterval) | ||
123 | |||
124 | // Don't need to destroy renderer, video player will be destroyed | ||
125 | this.flushVideoFile(this.currentVideoFile, false) | ||
126 | |||
127 | this.destroyFakeRenderer() | ||
128 | } | ||
129 | |||
130 | getCurrentResolutionId () { | ||
131 | return this.currentVideoFile ? this.currentVideoFile.resolution.id : -1 | ||
132 | } | ||
133 | |||
134 | updateVideoFile ( | ||
135 | videoFile?: VideoFile, | ||
136 | options: { | ||
137 | forcePlay?: boolean, | ||
138 | seek?: number, | ||
139 | delay?: number | ||
140 | } = {}, | ||
141 | done: () => void = () => { /* empty */ } | ||
142 | ) { | ||
143 | // Automatically choose the adapted video file | ||
144 | if (videoFile === undefined) { | ||
145 | const savedAverageBandwidth = getAverageBandwidthInStore() | ||
146 | videoFile = savedAverageBandwidth | ||
147 | ? this.getAppropriateFile(savedAverageBandwidth) | ||
148 | : this.pickAverageVideoFile() | ||
149 | } | ||
150 | |||
151 | // Don't add the same video file once again | ||
152 | if (this.currentVideoFile !== undefined && this.currentVideoFile.magnetUri === videoFile.magnetUri) { | ||
153 | return | ||
154 | } | ||
155 | |||
156 | // Do not display error to user because we will have multiple fallback | ||
157 | this.disableErrorDisplay() | ||
158 | |||
159 | // Hack to "simulate" src link in video.js >= 6 | ||
160 | // Without this, we can't play the video after pausing it | ||
161 | // https://github.com/videojs/video.js/blob/master/src/js/player.js#L1633 | ||
162 | this.player.src = () => true | ||
163 | const oldPlaybackRate = this.player.playbackRate() | ||
164 | |||
165 | const previousVideoFile = this.currentVideoFile | ||
166 | this.currentVideoFile = videoFile | ||
167 | |||
168 | // Don't try on iOS that does not support MediaSource | ||
169 | // Or don't use P2P if webtorrent is disabled | ||
170 | if (this.isIOS() || this.playerRefusedP2P) { | ||
171 | return this.fallbackToHttp(options, () => { | ||
172 | this.player.playbackRate(oldPlaybackRate) | ||
173 | return done() | ||
174 | }) | ||
175 | } | ||
176 | |||
177 | this.addTorrent(this.currentVideoFile.magnetUri, previousVideoFile, options, () => { | ||
178 | this.player.playbackRate(oldPlaybackRate) | ||
179 | return done() | ||
180 | }) | ||
181 | |||
182 | this.changeQuality() | ||
183 | this.trigger('videoFileUpdate', { auto: this.autoResolution, resolutionId: this.currentVideoFile.resolution.id }) | ||
184 | } | ||
185 | |||
186 | updateResolution (resolutionId: number, delay = 0) { | ||
187 | // Remember player state | ||
188 | const currentTime = this.player.currentTime() | ||
189 | const isPaused = this.player.paused() | ||
190 | |||
191 | // Remove poster to have black background | ||
192 | this.playerElement.poster = '' | ||
193 | |||
194 | // Hide bigPlayButton | ||
195 | if (!isPaused) { | ||
196 | this.player.bigPlayButton.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 | this.updateVideoFile(newVideoFile, options) | ||
206 | } | ||
207 | |||
208 | flushVideoFile (videoFile: VideoFile, destroyRenderer = true) { | ||
209 | if (videoFile !== undefined && this.webtorrent.get(videoFile.magnetUri)) { | ||
210 | if (destroyRenderer === true && this.renderer && this.renderer.destroy) this.renderer.destroy() | ||
211 | |||
212 | this.webtorrent.remove(videoFile.magnetUri) | ||
213 | console.log('Removed ' + videoFile.magnetUri) | ||
214 | } | ||
215 | } | ||
216 | |||
217 | enableAutoResolution () { | ||
218 | this.autoResolution = true | ||
219 | this.trigger('videoFileUpdate', { auto: this.autoResolution, resolutionId: this.getCurrentResolutionId() }) | ||
220 | } | ||
221 | |||
222 | disableAutoResolution (forbid = false) { | ||
223 | if (forbid === true) this.autoResolutionPossible = false | ||
224 | |||
225 | this.autoResolution = false | ||
226 | this.trigger('autoResolutionUpdate', { possible: this.autoResolutionPossible }) | ||
227 | this.trigger('videoFileUpdate', { auto: this.autoResolution, resolutionId: this.getCurrentResolutionId() }) | ||
228 | } | ||
229 | |||
230 | getTorrent () { | ||
231 | return this.torrent | ||
232 | } | ||
233 | |||
234 | private addTorrent ( | ||
235 | magnetOrTorrentUrl: string, | ||
236 | previousVideoFile: VideoFile, | ||
237 | options: PlayOptions, | ||
238 | done: Function | ||
239 | ) { | ||
240 | console.log('Adding ' + magnetOrTorrentUrl + '.') | ||
241 | |||
242 | const oldTorrent = this.torrent | ||
243 | const torrentOptions = { | ||
244 | store: (chunkLength: number, storeOpts: any) => new CacheChunkStore(new PeertubeChunkStore(chunkLength, storeOpts), { | ||
245 | max: 100 | ||
246 | }) | ||
247 | } | ||
248 | |||
249 | this.torrent = this.webtorrent.add(magnetOrTorrentUrl, torrentOptions, torrent => { | ||
250 | console.log('Added ' + magnetOrTorrentUrl + '.') | ||
251 | |||
252 | if (oldTorrent) { | ||
253 | // Pause the old torrent | ||
254 | this.stopTorrent(oldTorrent) | ||
255 | |||
256 | // We use a fake renderer so we download correct pieces of the next file | ||
257 | if (options.delay) this.renderFileInFakeElement(torrent.files[ 0 ], options.delay) | ||
258 | } | ||
259 | |||
260 | // Render the video in a few seconds? (on resolution change for example, we wait some seconds of the new video resolution) | ||
261 | this.addTorrentDelay = setTimeout(() => { | ||
262 | // We don't need the fake renderer anymore | ||
263 | this.destroyFakeRenderer() | ||
264 | |||
265 | const paused = this.player.paused() | ||
266 | |||
267 | this.flushVideoFile(previousVideoFile) | ||
268 | |||
269 | // Update progress bar (just for the UI), do not wait rendering | ||
270 | if (options.seek) this.player.currentTime(options.seek) | ||
271 | |||
272 | const renderVideoOptions = { autoplay: false, controls: true } | ||
273 | renderVideo(torrent.files[ 0 ], this.playerElement, renderVideoOptions, (err, renderer) => { | ||
274 | this.renderer = renderer | ||
275 | |||
276 | if (err) return this.fallbackToHttp(options, done) | ||
277 | |||
278 | return this.tryToPlay(err => { | ||
279 | if (err) return done(err) | ||
280 | |||
281 | if (options.seek) this.seek(options.seek) | ||
282 | if (options.forcePlay === false && paused === true) this.player.pause() | ||
283 | |||
284 | return done() | ||
285 | }) | ||
286 | }) | ||
287 | }, options.delay || 0) | ||
288 | }) | ||
289 | |||
290 | this.torrent.on('error', (err: any) => console.error(err)) | ||
291 | |||
292 | this.torrent.on('warning', (err: any) => { | ||
293 | // We don't support HTTP tracker but we don't care -> we use the web socket tracker | ||
294 | if (err.message.indexOf('Unsupported tracker protocol') !== -1) return | ||
295 | |||
296 | // Users don't care about issues with WebRTC, but developers do so log it in the console | ||
297 | if (err.message.indexOf('Ice connection failed') !== -1) { | ||
298 | console.log(err) | ||
299 | return | ||
300 | } | ||
301 | |||
302 | // Magnet hash is not up to date with the torrent file, add directly the torrent file | ||
303 | if (err.message.indexOf('incorrect info hash') !== -1) { | ||
304 | console.error('Incorrect info hash detected, falling back to torrent file.') | ||
305 | const newOptions = { forcePlay: true, seek: options.seek } | ||
306 | return this.addTorrent(this.torrent[ 'xs' ], previousVideoFile, newOptions, done) | ||
307 | } | ||
308 | |||
309 | // Remote instance is down | ||
310 | if (err.message.indexOf('from xs param') !== -1) { | ||
311 | this.handleError(err) | ||
312 | } | ||
313 | |||
314 | console.warn(err) | ||
315 | }) | ||
316 | } | ||
317 | |||
318 | private tryToPlay (done?: (err?: Error) => void) { | ||
319 | if (!done) done = function () { /* empty */ } | ||
320 | |||
321 | const playPromise = this.player.play() | ||
322 | if (playPromise !== undefined) { | ||
323 | return playPromise.then(done) | ||
324 | .catch((err: Error) => { | ||
325 | if (err.message.indexOf('The play() request was interrupted by a call to pause()') !== -1) { | ||
326 | return | ||
327 | } | ||
328 | |||
329 | console.error(err) | ||
330 | this.player.pause() | ||
331 | this.player.posterImage.show() | ||
332 | this.player.removeClass('vjs-has-autoplay') | ||
333 | this.player.removeClass('vjs-has-big-play-button-clicked') | ||
334 | |||
335 | return done() | ||
336 | }) | ||
337 | } | ||
338 | |||
339 | return done() | ||
340 | } | ||
341 | |||
342 | private seek (time: number) { | ||
343 | this.player.currentTime(time) | ||
344 | this.player.handleTechSeeked_() | ||
345 | } | ||
346 | |||
347 | private getAppropriateFile (averageDownloadSpeed?: number): VideoFile { | ||
348 | if (this.videoFiles === undefined || this.videoFiles.length === 0) return undefined | ||
349 | if (this.videoFiles.length === 1) return this.videoFiles[0] | ||
350 | |||
351 | // Don't change the torrent is the play was ended | ||
352 | if (this.torrent && this.torrent.progress === 1 && this.player.ended()) return this.currentVideoFile | ||
353 | |||
354 | if (!averageDownloadSpeed) averageDownloadSpeed = this.getAndSaveActualDownloadSpeed() | ||
355 | |||
356 | // Limit resolution according to player height | ||
357 | const playerHeight = this.playerElement.offsetHeight as number | ||
358 | |||
359 | // We take the first resolution just above the player height | ||
360 | // Example: player height is 530px, we want the 720p file instead of 480p | ||
361 | let maxResolution = this.videoFiles[0].resolution.id | ||
362 | for (let i = this.videoFiles.length - 1; i >= 0; i--) { | ||
363 | const resolutionId = this.videoFiles[i].resolution.id | ||
364 | if (resolutionId >= playerHeight) { | ||
365 | maxResolution = resolutionId | ||
366 | break | ||
367 | } | ||
368 | } | ||
369 | |||
370 | // Filter videos we can play according to our screen resolution and bandwidth | ||
371 | const filteredFiles = this.videoFiles | ||
372 | .filter(f => f.resolution.id <= maxResolution) | ||
373 | .filter(f => { | ||
374 | const fileBitrate = (f.size / this.videoDuration) | ||
375 | let threshold = fileBitrate | ||
376 | |||
377 | // If this is for a higher resolution or an initial load: add a margin | ||
378 | if (!this.currentVideoFile || f.resolution.id > this.currentVideoFile.resolution.id) { | ||
379 | threshold += ((fileBitrate * this.CONSTANTS.AUTO_QUALITY_THRESHOLD_PERCENT) / 100) | ||
380 | } | ||
381 | |||
382 | return averageDownloadSpeed > threshold | ||
383 | }) | ||
384 | |||
385 | // If the download speed is too bad, return the lowest resolution we have | ||
386 | if (filteredFiles.length === 0) return videoFileMinByResolution(this.videoFiles) | ||
387 | |||
388 | return videoFileMaxByResolution(filteredFiles) | ||
389 | } | ||
390 | |||
391 | private getAndSaveActualDownloadSpeed () { | ||
392 | const start = Math.max(this.downloadSpeeds.length - this.CONSTANTS.BANDWIDTH_AVERAGE_NUMBER_OF_VALUES, 0) | ||
393 | const lastDownloadSpeeds = this.downloadSpeeds.slice(start, this.downloadSpeeds.length) | ||
394 | if (lastDownloadSpeeds.length === 0) return -1 | ||
395 | |||
396 | const sum = lastDownloadSpeeds.reduce((a, b) => a + b) | ||
397 | const averageBandwidth = Math.round(sum / lastDownloadSpeeds.length) | ||
398 | |||
399 | // Save the average bandwidth for future use | ||
400 | saveAverageBandwidth(averageBandwidth) | ||
401 | |||
402 | return averageBandwidth | ||
403 | } | ||
404 | |||
405 | private initializePlayer () { | ||
406 | this.buildQualities() | ||
407 | |||
408 | if (this.autoplay === true) { | ||
409 | this.player.posterImage.hide() | ||
410 | |||
411 | return this.updateVideoFile(undefined, { forcePlay: true, seek: this.startTime }) | ||
412 | } | ||
413 | |||
414 | // Proxy first play | ||
415 | const oldPlay = this.player.play.bind(this.player) | ||
416 | this.player.play = () => { | ||
417 | this.player.addClass('vjs-has-big-play-button-clicked') | ||
418 | this.player.play = oldPlay | ||
419 | |||
420 | this.updateVideoFile(undefined, { forcePlay: true, seek: this.startTime }) | ||
421 | } | ||
422 | } | ||
423 | |||
424 | private runAutoQualityScheduler () { | ||
425 | this.autoQualityInterval = setInterval(() => { | ||
426 | |||
427 | // Not initialized or in HTTP fallback | ||
428 | if (this.torrent === undefined || this.torrent === null) return | ||
429 | if (this.autoResolution === false) return | ||
430 | if (this.isAutoResolutionObservation === true) return | ||
431 | |||
432 | const file = this.getAppropriateFile() | ||
433 | let changeResolution = false | ||
434 | let changeResolutionDelay = 0 | ||
435 | |||
436 | // Lower resolution | ||
437 | if (this.isPlayerWaiting() && file.resolution.id < this.currentVideoFile.resolution.id) { | ||
438 | console.log('Downgrading automatically the resolution to: %s', file.resolution.label) | ||
439 | changeResolution = true | ||
440 | } else if (file.resolution.id > this.currentVideoFile.resolution.id) { // Higher resolution | ||
441 | console.log('Upgrading automatically the resolution to: %s', file.resolution.label) | ||
442 | changeResolution = true | ||
443 | changeResolutionDelay = this.CONSTANTS.AUTO_QUALITY_HIGHER_RESOLUTION_DELAY | ||
444 | } | ||
445 | |||
446 | if (changeResolution === true) { | ||
447 | this.updateResolution(file.resolution.id, changeResolutionDelay) | ||
448 | |||
449 | // Wait some seconds in observation of our new resolution | ||
450 | this.isAutoResolutionObservation = true | ||
451 | |||
452 | this.qualityObservationTimer = setTimeout(() => { | ||
453 | this.isAutoResolutionObservation = false | ||
454 | }, this.CONSTANTS.AUTO_QUALITY_OBSERVATION_TIME) | ||
455 | } | ||
456 | }, this.CONSTANTS.AUTO_QUALITY_SCHEDULER) | ||
457 | } | ||
458 | |||
459 | private isPlayerWaiting () { | ||
460 | return this.player && this.player.hasClass('vjs-waiting') | ||
461 | } | ||
462 | |||
463 | private runTorrentInfoScheduler () { | ||
464 | this.torrentInfoInterval = setInterval(() => { | ||
465 | // Not initialized yet | ||
466 | if (this.torrent === undefined) return | ||
467 | |||
468 | // Http fallback | ||
469 | if (this.torrent === null) return this.player.trigger('p2pInfo', false) | ||
470 | |||
471 | // this.webtorrent.downloadSpeed because we need to take into account the potential old torrent too | ||
472 | if (this.webtorrent.downloadSpeed !== 0) this.downloadSpeeds.push(this.webtorrent.downloadSpeed) | ||
473 | |||
474 | return this.player.trigger('p2pInfo', { | ||
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 | }, this.CONSTANTS.INFO_SCHEDULER) | ||
482 | } | ||
483 | |||
484 | private fallbackToHttp (options: PlayOptions, done?: Function) { | ||
485 | const paused = this.player.paused() | ||
486 | |||
487 | this.disableAutoResolution(true) | ||
488 | |||
489 | this.flushVideoFile(this.currentVideoFile, true) | ||
490 | this.torrent = null | ||
491 | |||
492 | // Enable error display now this is our last fallback | ||
493 | this.player.one('error', () => this.enableErrorDisplay()) | ||
494 | |||
495 | const httpUrl = this.currentVideoFile.fileUrl | ||
496 | this.player.src = this.savePlayerSrcFunction | ||
497 | this.player.src(httpUrl) | ||
498 | |||
499 | this.changeQuality() | ||
500 | |||
501 | // We changed the source, so reinit captions | ||
502 | this.player.trigger('sourcechange') | ||
503 | |||
504 | return this.tryToPlay(err => { | ||
505 | if (err && done) return done(err) | ||
506 | |||
507 | if (options.seek) this.seek(options.seek) | ||
508 | if (options.forcePlay === false && paused === true) this.player.pause() | ||
509 | |||
510 | if (done) return done() | ||
511 | }) | ||
512 | } | ||
513 | |||
514 | private handleError (err: Error | string) { | ||
515 | return this.player.trigger('customError', { err }) | ||
516 | } | ||
517 | |||
518 | private enableErrorDisplay () { | ||
519 | this.player.addClass('vjs-error-display-enabled') | ||
520 | } | ||
521 | |||
522 | private disableErrorDisplay () { | ||
523 | this.player.removeClass('vjs-error-display-enabled') | ||
524 | } | ||
525 | |||
526 | private isIOS () { | ||
527 | return !!navigator.platform && /iPad|iPhone|iPod/.test(navigator.platform) | ||
528 | } | ||
529 | |||
530 | private pickAverageVideoFile () { | ||
531 | if (this.videoFiles.length === 1) return this.videoFiles[0] | ||
532 | |||
533 | return this.videoFiles[Math.floor(this.videoFiles.length / 2)] | ||
534 | } | ||
535 | |||
536 | private stopTorrent (torrent: WebTorrent.Torrent) { | ||
537 | torrent.pause() | ||
538 | // Pause does not remove actual peers (in particular the webseed peer) | ||
539 | torrent.removePeer(torrent[ 'ws' ]) | ||
540 | } | ||
541 | |||
542 | private renderFileInFakeElement (file: WebTorrent.TorrentFile, delay: number) { | ||
543 | this.destroyingFakeRenderer = false | ||
544 | |||
545 | const fakeVideoElem = document.createElement('video') | ||
546 | renderVideo(file, fakeVideoElem, { autoplay: false, controls: false }, (err, renderer) => { | ||
547 | this.fakeRenderer = renderer | ||
548 | |||
549 | // The renderer returns an error when we destroy it, so skip them | ||
550 | if (this.destroyingFakeRenderer === false && err) { | ||
551 | console.error('Cannot render new torrent in fake video element.', err) | ||
552 | } | ||
553 | |||
554 | // Load the future file at the correct time (in delay MS - 2 seconds) | ||
555 | fakeVideoElem.currentTime = this.player.currentTime() + (delay - 2000) | ||
556 | }) | ||
557 | } | ||
558 | |||
559 | private destroyFakeRenderer () { | ||
560 | if (this.fakeRenderer) { | ||
561 | this.destroyingFakeRenderer = true | ||
562 | |||
563 | if (this.fakeRenderer.destroy) { | ||
564 | try { | ||
565 | this.fakeRenderer.destroy() | ||
566 | } catch (err) { | ||
567 | console.log('Cannot destroy correctly fake renderer.', err) | ||
568 | } | ||
569 | } | ||
570 | this.fakeRenderer = undefined | ||
571 | } | ||
572 | } | ||
573 | |||
574 | private buildQualities () { | ||
575 | const qualityLevelsPayload = [] | ||
576 | |||
577 | for (const file of this.videoFiles) { | ||
578 | const representation = { | ||
579 | id: file.resolution.id, | ||
580 | label: this.buildQualityLabel(file), | ||
581 | height: file.resolution.id, | ||
582 | _enabled: true | ||
583 | } | ||
584 | |||
585 | this.player.qualityLevels().addQualityLevel(representation) | ||
586 | |||
587 | qualityLevelsPayload.push({ | ||
588 | id: representation.id, | ||
589 | label: representation.label, | ||
590 | selected: false | ||
591 | }) | ||
592 | } | ||
593 | |||
594 | const payload: LoadedQualityData = { | ||
595 | qualitySwitchCallback: (d: any) => this.qualitySwitchCallback(d), | ||
596 | qualityData: { | ||
597 | video: qualityLevelsPayload | ||
598 | } | ||
599 | } | ||
600 | this.player.trigger('loadedqualitydata', payload) | ||
601 | } | ||
602 | |||
603 | private buildQualityLabel (file: VideoFile) { | ||
604 | let label = file.resolution.label | ||
605 | |||
606 | if (file.fps && file.fps >= 50) { | ||
607 | label += file.fps | ||
608 | } | ||
609 | |||
610 | return label | ||
611 | } | ||
612 | |||
613 | private qualitySwitchCallback (id: number) { | ||
614 | if (id === -1) { | ||
615 | if (this.autoResolutionPossible === true) this.enableAutoResolution() | ||
616 | return | ||
617 | } | ||
618 | |||
619 | this.disableAutoResolution() | ||
620 | this.updateResolution(id) | ||
621 | } | ||
622 | |||
623 | private changeQuality () { | ||
624 | const resolutionId = this.currentVideoFile.resolution.id | ||
625 | const qualityLevels = this.player.qualityLevels() | ||
626 | |||
627 | if (resolutionId === -1) { | ||
628 | qualityLevels.selectedIndex = -1 | ||
629 | return | ||
630 | } | ||
631 | |||
632 | for (let i = 0; i < qualityLevels; i++) { | ||
633 | const q = this.player.qualityLevels[i] | ||
634 | if (q.height === resolutionId) qualityLevels.selectedIndex = i | ||
635 | } | ||
636 | } | ||
637 | } | ||
638 | |||
639 | videojs.registerPlugin('webtorrent', WebTorrentPlugin) | ||
640 | export { WebTorrentPlugin } | ||