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1 | // FIXME: something weird with our path definition in tsconfig and typings | |
2 | // @ts-ignore | |
3 | import * as videojs from 'video.js' | |
4 | import { P2PMediaLoaderPluginOptions, PlayerNetworkInfo, VideoJSComponentInterface } from '../peertube-videojs-typings' | |
5 | import { Engine, initHlsJsPlayer, initVideoJsContribHlsJsPlayer } from 'p2p-media-loader-hlsjs' | |
6 | import { Events } from 'p2p-media-loader-core' | |
7 | import { timeToInt } from '../utils' | |
8 | ||
9 | // videojs-hlsjs-plugin needs videojs in window | |
10 | window['videojs'] = videojs | |
11 | require('@streamroot/videojs-hlsjs-plugin') | |
12 | ||
13 | const Plugin: VideoJSComponentInterface = videojs.getPlugin('plugin') | |
14 | class P2pMediaLoaderPlugin extends Plugin { | |
15 | ||
16 | private readonly CONSTANTS = { | |
17 | INFO_SCHEDULER: 1000 // Don't change this | |
18 | } | |
19 | private readonly options: P2PMediaLoaderPluginOptions | |
20 | ||
21 | private hlsjs: any // Don't type hlsjs to not bundle the module | |
22 | private p2pEngine: Engine | |
23 | private statsP2PBytes = { | |
24 | pendingDownload: [] as number[], | |
25 | pendingUpload: [] as number[], | |
26 | numPeers: 0, | |
27 | totalDownload: 0, | |
28 | totalUpload: 0 | |
29 | } | |
30 | private statsHTTPBytes = { | |
31 | pendingDownload: [] as number[], | |
32 | pendingUpload: [] as number[], | |
33 | totalDownload: 0, | |
34 | totalUpload: 0 | |
35 | } | |
36 | private startTime: number | |
37 | ||
38 | private networkInfoInterval: any | |
39 | ||
40 | constructor (player: videojs.Player, options: P2PMediaLoaderPluginOptions) { | |
41 | super(player, options) | |
42 | ||
43 | this.options = options | |
44 | ||
45 | if (!videojs.Html5Hlsjs) { | |
46 | const message = 'HLS.js does not seem to be supported.' | |
47 | console.warn(message) | |
48 | ||
49 | player.ready(() => player.trigger('error', new Error(message))) | |
50 | return | |
51 | } | |
52 | ||
53 | videojs.Html5Hlsjs.addHook('beforeinitialize', (videojsPlayer: any, hlsjs: any) => { | |
54 | this.hlsjs = hlsjs | |
55 | }) | |
56 | ||
57 | initVideoJsContribHlsJsPlayer(player) | |
58 | ||
59 | this.startTime = timeToInt(options.startTime) | |
60 | ||
61 | player.src({ | |
62 | type: options.type, | |
63 | src: options.src | |
64 | }) | |
65 | ||
66 | player.one('play', () => { | |
67 | player.addClass('vjs-has-big-play-button-clicked') | |
68 | }) | |
69 | ||
70 | player.ready(() => this.initialize()) | |
71 | } | |
72 | ||
73 | dispose () { | |
74 | if (this.hlsjs) this.hlsjs.destroy() | |
75 | if (this.p2pEngine) this.p2pEngine.destroy() | |
76 | ||
77 | clearInterval(this.networkInfoInterval) | |
78 | } | |
79 | ||
80 | private initialize () { | |
81 | initHlsJsPlayer(this.hlsjs) | |
82 | ||
83 | const tech = this.player.tech_ | |
84 | this.p2pEngine = tech.options_.hlsjsConfig.loader.getEngine() | |
85 | ||
86 | // Avoid using constants to not import hls.hs | |
87 | // https://github.com/video-dev/hls.js/blob/master/src/events.js#L37 | |
88 | this.hlsjs.on('hlsLevelSwitching', (_: any, data: any) => { | |
89 | this.trigger('resolutionChange', { auto: this.hlsjs.autoLevelEnabled, resolutionId: data.height }) | |
90 | }) | |
91 | ||
92 | this.p2pEngine.on(Events.SegmentError, (segment, err) => { | |
93 | console.error('Segment error.', segment, err) | |
94 | }) | |
95 | ||
96 | this.statsP2PBytes.numPeers = 1 + this.options.redundancyBaseUrls.length | |
97 | ||
98 | this.runStats() | |
99 | ||
100 | this.hlsjs.on('hlsLevelLoaded', () => { | |
101 | if (this.startTime) this.player.currentTime(this.startTime) | |
102 | ||
103 | this.hlsjs.off('hlsLevelLoaded', this) | |
104 | }) | |
105 | } | |
106 | ||
107 | private runStats () { | |
108 | this.p2pEngine.on(Events.PieceBytesDownloaded, (method: string, size: number) => { | |
109 | const elem = method === 'p2p' ? this.statsP2PBytes : this.statsHTTPBytes | |
110 | ||
111 | elem.pendingDownload.push(size) | |
112 | elem.totalDownload += size | |
113 | }) | |
114 | ||
115 | this.p2pEngine.on(Events.PieceBytesUploaded, (method: string, size: number) => { | |
116 | const elem = method === 'p2p' ? this.statsP2PBytes : this.statsHTTPBytes | |
117 | ||
118 | elem.pendingUpload.push(size) | |
119 | elem.totalUpload += size | |
120 | }) | |
121 | ||
122 | this.p2pEngine.on(Events.PeerConnect, () => this.statsP2PBytes.numPeers++) | |
123 | this.p2pEngine.on(Events.PeerClose, () => this.statsP2PBytes.numPeers--) | |
124 | ||
125 | this.networkInfoInterval = setInterval(() => { | |
126 | const p2pDownloadSpeed = this.arraySum(this.statsP2PBytes.pendingDownload) | |
127 | const p2pUploadSpeed = this.arraySum(this.statsP2PBytes.pendingUpload) | |
128 | ||
129 | const httpDownloadSpeed = this.arraySum(this.statsHTTPBytes.pendingDownload) | |
130 | const httpUploadSpeed = this.arraySum(this.statsHTTPBytes.pendingUpload) | |
131 | ||
132 | this.statsP2PBytes.pendingDownload = [] | |
133 | this.statsP2PBytes.pendingUpload = [] | |
134 | this.statsHTTPBytes.pendingDownload = [] | |
135 | this.statsHTTPBytes.pendingUpload = [] | |
136 | ||
137 | return this.player.trigger('p2pInfo', { | |
138 | http: { | |
139 | downloadSpeed: httpDownloadSpeed, | |
140 | uploadSpeed: httpUploadSpeed, | |
141 | downloaded: this.statsHTTPBytes.totalDownload, | |
142 | uploaded: this.statsHTTPBytes.totalUpload | |
143 | }, | |
144 | p2p: { | |
145 | downloadSpeed: p2pDownloadSpeed, | |
146 | uploadSpeed: p2pUploadSpeed, | |
147 | numPeers: this.statsP2PBytes.numPeers, | |
148 | downloaded: this.statsP2PBytes.totalDownload, | |
149 | uploaded: this.statsP2PBytes.totalUpload | |
150 | } | |
151 | } as PlayerNetworkInfo) | |
152 | }, this.CONSTANTS.INFO_SCHEDULER) | |
153 | } | |
154 | ||
155 | private arraySum (data: number[]) { | |
156 | return data.reduce((a: number, b: number) => a + b, 0) | |
157 | } | |
158 | } | |
159 | ||
160 | videojs.registerPlugin('p2pMediaLoader', P2pMediaLoaderPlugin) | |
161 | export { P2pMediaLoaderPlugin } |