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import debug from 'debug'
import videojs from 'video.js'
import { logger } from '@root-helpers/logger'
import { addQueryParams } from '@peertube/peertube-core-utils'
import { VideoFile } from '@peertube/peertube-models'
import { PeerTubeResolution, PlayerNetworkInfo, WebVideoPluginOptions } from '../../types'
const debugLogger = debug('peertube:player:web-video-plugin')
const Plugin = videojs.getPlugin('plugin')
class WebVideoPlugin extends Plugin {
private readonly videoFiles: VideoFile[]
private currentVideoFile: VideoFile
private videoFileToken: () => string
private networkInfoInterval: any
private onErrorHandler: () => void
private onPlayHandler: () => void
constructor (player: videojs.Player, options?: WebVideoPluginOptions) {
super(player, options)
this.videoFiles = options.videoFiles
this.videoFileToken = options.videoFileToken
this.updateVideoFile({ videoFile: this.pickAverageVideoFile(), isUserResolutionChange: false })
player.ready(() => {
this.buildQualities()
this.setupNetworkInfoInterval()
if (this.videoFiles.length === 0) {
this.player.addClass('disabled')
return
}
})
}
dispose () {
clearInterval(this.networkInfoInterval)
if (this.onErrorHandler) this.player.off('error', this.onErrorHandler)
if (this.onPlayHandler) this.player.off('canplay', this.onPlayHandler)
super.dispose()
}
getCurrentResolutionId () {
return this.currentVideoFile.resolution.id
}
updateVideoFile (options: {
videoFile: VideoFile
isUserResolutionChange: boolean
}) {
this.currentVideoFile = options.videoFile
debugLogger('Updating web video file to ' + this.currentVideoFile.fileUrl)
const paused = this.player.paused()
const playbackRate = this.player.playbackRate()
const currentTime = this.player.currentTime()
if (!this.onErrorHandler) {
this.onErrorHandler = () => this.player.peertube().displayFatalError()
this.player.one('error', this.onErrorHandler)
}
let httpUrl = this.currentVideoFile.fileUrl
if (this.videoFileToken()) {
httpUrl = addQueryParams(httpUrl, { videoFileToken: this.videoFileToken() })
}
const oldAutoplayValue = this.player.autoplay()
if (options.isUserResolutionChange) {
// Prevent video source element displaying the poster when we change the resolution
(this.player.el() as HTMLVideoElement).poster = ''
this.player.autoplay(false)
this.player.addClass('vjs-updating-resolution')
}
this.player.src(httpUrl)
this.onPlayHandler = () => {
this.player.playbackRate(playbackRate)
this.player.currentTime(currentTime)
this.adaptPosterForAudioOnly()
if (options.isUserResolutionChange) {
this.player.trigger('user-resolution-change')
this.player.trigger('web-video-source-change')
this.tryToPlay()
.then(() => {
if (paused) this.player.pause()
this.player.autoplay(oldAutoplayValue)
})
}
}
this.player.one('canplay', this.onPlayHandler)
}
getCurrentVideoFile () {
return this.currentVideoFile
}
private adaptPosterForAudioOnly () {
// Audio-only (resolutionId === 0) gets special treatment
if (this.currentVideoFile.resolution.id === 0) {
this.player.audioPosterMode(true)
} else {
this.player.audioPosterMode(false)
}
}
private tryToPlay () {
debugLogger('Try to play manually the video')
const playPromise = this.player.play()
if (playPromise === undefined) return
return playPromise
.catch((err: Error) => {
if (err.message.includes('The play() request was interrupted by a call to pause()')) {
return
}
logger.warn(err)
this.player.pause()
this.player.posterImage.show()
this.player.removeClass('vjs-has-autoplay')
this.player.removeClass('vjs-playing-audio-only-content')
})
.finally(() => {
this.player.removeClass('vjs-updating-resolution')
})
}
private pickAverageVideoFile () {
if (this.videoFiles.length === 1) return this.videoFiles[0]
const files = this.videoFiles.filter(f => f.resolution.id !== 0)
return files[Math.floor(files.length / 2)]
}
private buildQualities () {
const resolutions: PeerTubeResolution[] = this.videoFiles.map(videoFile => ({
id: videoFile.resolution.id,
label: this.buildQualityLabel(videoFile),
height: videoFile.resolution.id,
selected: videoFile.id === this.currentVideoFile.id,
selectCallback: () => this.updateVideoFile({ videoFile, isUserResolutionChange: true })
}))
this.player.peertubeResolutions().add(resolutions)
}
private buildQualityLabel (file: VideoFile) {
let label = file.resolution.label
if (file.fps && file.fps >= 50) {
label += file.fps
}
return label
}
private setupNetworkInfoInterval () {
this.networkInfoInterval = setInterval(() => {
return this.player.trigger('network-info', {
source: 'web-video',
http: {
downloaded: this.player.bufferedPercent() * this.currentVideoFile.size
}
} as PlayerNetworkInfo)
}, 1000)
}
}
videojs.registerPlugin('webVideo', WebVideoPlugin)
export { WebVideoPlugin }
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