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// FIXME: something weird with our path definition in tsconfig and typings
// @ts-ignore
import * as videojs from 'video.js'
import { P2PMediaLoaderPluginOptions, PlayerNetworkInfo, VideoJSComponentInterface } from '../peertube-videojs-typings'
import { Engine, initHlsJsPlayer, initVideoJsContribHlsJsPlayer } from 'p2p-media-loader-hlsjs'
import { Events } from 'p2p-media-loader-core'
import { timeToInt } from '../utils'
// videojs-hlsjs-plugin needs videojs in window
window['videojs'] = videojs
require('@streamroot/videojs-hlsjs-plugin')
const Plugin: VideoJSComponentInterface = videojs.getPlugin('plugin')
class P2pMediaLoaderPlugin extends Plugin {
private readonly CONSTANTS = {
INFO_SCHEDULER: 1000 // Don't change this
}
private readonly options: P2PMediaLoaderPluginOptions
private hlsjs: any // Don't type hlsjs to not bundle the module
private p2pEngine: Engine
private statsP2PBytes = {
pendingDownload: [] as number[],
pendingUpload: [] as number[],
numPeers: 0,
totalDownload: 0,
totalUpload: 0
}
private statsHTTPBytes = {
pendingDownload: [] as number[],
pendingUpload: [] as number[],
totalDownload: 0,
totalUpload: 0
}
private startTime: number
private networkInfoInterval: any
constructor (player: videojs.Player, options: P2PMediaLoaderPluginOptions) {
super(player, options)
this.options = options
if (!videojs.Html5Hlsjs) {
const message = 'HLS.js does not seem to be supported.'
console.warn(message)
player.ready(() => player.trigger('error', new Error(message)))
return
}
videojs.Html5Hlsjs.addHook('beforeinitialize', (videojsPlayer: any, hlsjs: any) => {
this.hlsjs = hlsjs
})
initVideoJsContribHlsJsPlayer(player)
this.startTime = timeToInt(options.startTime)
player.src({
type: options.type,
src: options.src
})
player.one('play', () => {
player.addClass('vjs-has-big-play-button-clicked')
})
player.ready(() => this.initialize())
}
dispose () {
if (this.hlsjs) this.hlsjs.destroy()
if (this.p2pEngine) this.p2pEngine.destroy()
clearInterval(this.networkInfoInterval)
}
private initialize () {
initHlsJsPlayer(this.hlsjs)
const tech = this.player.tech_
this.p2pEngine = tech.options_.hlsjsConfig.loader.getEngine()
// Avoid using constants to not import hls.hs
// https://github.com/video-dev/hls.js/blob/master/src/events.js#L37
this.hlsjs.on('hlsLevelSwitching', (_: any, data: any) => {
this.trigger('resolutionChange', { auto: this.hlsjs.autoLevelEnabled, resolutionId: data.height })
})
this.p2pEngine.on(Events.SegmentError, (segment, err) => {
console.error('Segment error.', segment, err)
})
this.statsP2PBytes.numPeers = 1 + this.options.redundancyBaseUrls.length
this.runStats()
this.hlsjs.on('hlsLevelLoaded', () => {
if (this.startTime) this.player.currentTime(this.startTime)
this.hlsjs.off('hlsLevelLoaded', this)
})
}
private runStats () {
this.p2pEngine.on(Events.PieceBytesDownloaded, (method: string, size: number) => {
const elem = method === 'p2p' ? this.statsP2PBytes : this.statsHTTPBytes
elem.pendingDownload.push(size)
elem.totalDownload += size
})
this.p2pEngine.on(Events.PieceBytesUploaded, (method: string, size: number) => {
const elem = method === 'p2p' ? this.statsP2PBytes : this.statsHTTPBytes
elem.pendingUpload.push(size)
elem.totalUpload += size
})
this.p2pEngine.on(Events.PeerConnect, () => this.statsP2PBytes.numPeers++)
this.p2pEngine.on(Events.PeerClose, () => this.statsP2PBytes.numPeers--)
this.networkInfoInterval = setInterval(() => {
const p2pDownloadSpeed = this.arraySum(this.statsP2PBytes.pendingDownload)
const p2pUploadSpeed = this.arraySum(this.statsP2PBytes.pendingUpload)
const httpDownloadSpeed = this.arraySum(this.statsHTTPBytes.pendingDownload)
const httpUploadSpeed = this.arraySum(this.statsHTTPBytes.pendingUpload)
this.statsP2PBytes.pendingDownload = []
this.statsP2PBytes.pendingUpload = []
this.statsHTTPBytes.pendingDownload = []
this.statsHTTPBytes.pendingUpload = []
return this.player.trigger('p2pInfo', {
http: {
downloadSpeed: httpDownloadSpeed,
uploadSpeed: httpUploadSpeed,
downloaded: this.statsHTTPBytes.totalDownload,
uploaded: this.statsHTTPBytes.totalUpload
},
p2p: {
downloadSpeed: p2pDownloadSpeed,
uploadSpeed: p2pUploadSpeed,
numPeers: this.statsP2PBytes.numPeers,
downloaded: this.statsP2PBytes.totalDownload,
uploaded: this.statsP2PBytes.totalUpload
}
} as PlayerNetworkInfo)
}, this.CONSTANTS.INFO_SCHEDULER)
}
private arraySum (data: number[]) {
return data.reduce((a: number, b: number) => a + b, 0)
}
}
videojs.registerPlugin('p2pMediaLoader', P2pMediaLoaderPlugin)
export { P2pMediaLoaderPlugin }
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