1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
|
import videojs, { VideoJsPlayer } from 'video.js'
import { P2PMediaLoaderPluginOptions, PlayerNetworkInfo } from '../peertube-videojs-typings'
import { Engine, initHlsJsPlayer, initVideoJsContribHlsJsPlayer } from 'p2p-media-loader-hlsjs'
import { Events, Segment } from 'p2p-media-loader-core'
import { timeToInt } from '../utils'
import { registerConfigPlugin, registerSourceHandler } from './hls-plugin'
import * as Hlsjs from 'hls.js'
registerConfigPlugin(videojs)
registerSourceHandler(videojs)
const Plugin = videojs.getPlugin('plugin')
class P2pMediaLoaderPlugin extends Plugin {
private readonly CONSTANTS = {
INFO_SCHEDULER: 1000 // Don't change this
}
private readonly options: P2PMediaLoaderPluginOptions
private hlsjs: Hlsjs
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: VideoJsPlayer, options?: P2PMediaLoaderPluginOptions) {
super(player)
this.options = options
// FIXME: typings https://github.com/Microsoft/TypeScript/issues/14080
if (!(videojs as any).Html5Hlsjs) {
const message = 'HLS.js does not seem to be supported.'
console.warn(message)
player.ready(() => player.trigger('error', new Error(message)))
return
}
// FIXME: typings https://github.com/Microsoft/TypeScript/issues/14080
(videojs as any).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)
}
getHLSJS () {
return this.hlsjs
}
private initialize () {
initHlsJsPlayer(this.hlsjs)
// FIXME: typings
const options = this.player.tech(true).options_ as any
this.p2pEngine = options.hlsjsConfig.loader.getEngine()
this.hlsjs.on(Hlsjs.Events.LEVEL_SWITCHING, (_: any, data: any) => {
this.trigger('resolutionChange', { auto: this.hlsjs.autoLevelEnabled, resolutionId: data.height })
})
this.p2pEngine.on(Events.SegmentError, (segment: Segment, err) => {
console.error('Segment error.', segment, err)
this.options.redundancyUrlManager.removeBySegmentUrl(segment.requestUrl)
})
this.statsP2PBytes.numPeers = 1 + this.options.redundancyUrlManager.countBaseUrls()
this.runStats()
this.player.one('canplay', () => {
if (this.startTime) {
this.player.currentTime(this.startTime)
}
})
}
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 }
|
