]>
Commit | Line | Data |
---|---|---|
1 | import Hlsjs from 'hls.js' | |
2 | import videojs from 'video.js' | |
3 | import { Events, Segment } from '@peertube/p2p-media-loader-core' | |
4 | import { Engine, initHlsJsPlayer, initVideoJsContribHlsJsPlayer } from '@peertube/p2p-media-loader-hlsjs' | |
5 | import { timeToInt } from '@shared/core-utils' | |
6 | import { P2PMediaLoaderPluginOptions, PlayerNetworkInfo } from '../peertube-videojs-typings' | |
7 | import { registerConfigPlugin, registerSourceHandler } from './hls-plugin' | |
8 | ||
9 | registerConfigPlugin(videojs) | |
10 | registerSourceHandler(videojs) | |
11 | ||
12 | const Plugin = videojs.getPlugin('plugin') | |
13 | class P2pMediaLoaderPlugin extends Plugin { | |
14 | ||
15 | private readonly CONSTANTS = { | |
16 | INFO_SCHEDULER: 1000 // Don't change this | |
17 | } | |
18 | private readonly options: P2PMediaLoaderPluginOptions | |
19 | ||
20 | private hlsjs: Hlsjs | |
21 | private p2pEngine: Engine | |
22 | private statsP2PBytes = { | |
23 | pendingDownload: [] as number[], | |
24 | pendingUpload: [] as number[], | |
25 | numPeers: 0, | |
26 | totalDownload: 0, | |
27 | totalUpload: 0 | |
28 | } | |
29 | private statsHTTPBytes = { | |
30 | pendingDownload: [] as number[], | |
31 | pendingUpload: [] as number[], | |
32 | totalDownload: 0, | |
33 | totalUpload: 0 | |
34 | } | |
35 | private startTime: number | |
36 | ||
37 | private networkInfoInterval: any | |
38 | ||
39 | constructor (player: videojs.Player, options?: P2PMediaLoaderPluginOptions) { | |
40 | super(player) | |
41 | ||
42 | this.options = options | |
43 | ||
44 | // FIXME: typings https://github.com/Microsoft/TypeScript/issues/14080 | |
45 | if (!(videojs as any).Html5Hlsjs) { | |
46 | console.warn('HLS.js does not seem to be supported. Try to fallback to built in HLS.') | |
47 | ||
48 | if (!player.canPlayType('application/vnd.apple.mpegurl')) { | |
49 | const message = 'Cannot fallback to built-in HLS' | |
50 | console.warn(message) | |
51 | ||
52 | player.ready(() => player.trigger('error', new Error(message))) | |
53 | return | |
54 | } | |
55 | } else { | |
56 | // FIXME: typings https://github.com/Microsoft/TypeScript/issues/14080 | |
57 | (videojs as any).Html5Hlsjs.addHook('beforeinitialize', (videojsPlayer: any, hlsjs: any) => { | |
58 | this.hlsjs = hlsjs | |
59 | }) | |
60 | ||
61 | initVideoJsContribHlsJsPlayer(player) | |
62 | } | |
63 | ||
64 | this.startTime = timeToInt(options.startTime) | |
65 | ||
66 | player.src({ | |
67 | type: options.type, | |
68 | src: options.src | |
69 | }) | |
70 | ||
71 | player.ready(() => { | |
72 | this.initializeCore() | |
73 | ||
74 | if ((videojs as any).Html5Hlsjs) { | |
75 | this.initializePlugin() | |
76 | } | |
77 | }) | |
78 | } | |
79 | ||
80 | dispose () { | |
81 | if (this.hlsjs) this.hlsjs.destroy() | |
82 | if (this.p2pEngine) this.p2pEngine.destroy() | |
83 | ||
84 | clearInterval(this.networkInfoInterval) | |
85 | } | |
86 | ||
87 | getCurrentLevel () { | |
88 | return this.hlsjs.levels[this.hlsjs.currentLevel] | |
89 | } | |
90 | ||
91 | getLiveLatency () { | |
92 | // FIXME: typings | |
93 | return Math.round((this.hlsjs as any).latency) | |
94 | } | |
95 | ||
96 | getHLSJS () { | |
97 | return this.hlsjs | |
98 | } | |
99 | ||
100 | private initializeCore () { | |
101 | this.player.one('play', () => { | |
102 | this.player.addClass('vjs-has-big-play-button-clicked') | |
103 | }) | |
104 | ||
105 | this.player.one('canplay', () => { | |
106 | if (this.startTime) { | |
107 | this.player.currentTime(this.startTime) | |
108 | } | |
109 | }) | |
110 | } | |
111 | ||
112 | private initializePlugin () { | |
113 | initHlsJsPlayer(this.hlsjs) | |
114 | ||
115 | // FIXME: typings | |
116 | const options = this.player.tech(true).options_ as any | |
117 | this.p2pEngine = options.hlsjsConfig.loader.getEngine() | |
118 | ||
119 | this.p2pEngine.on(Events.SegmentError, (segment: Segment, err) => { | |
120 | console.error('Segment error.', segment, err) | |
121 | ||
122 | this.options.redundancyUrlManager.removeBySegmentUrl(segment.requestUrl) | |
123 | }) | |
124 | ||
125 | this.statsP2PBytes.numPeers = 1 + this.options.redundancyUrlManager.countBaseUrls() | |
126 | ||
127 | this.runStats() | |
128 | } | |
129 | ||
130 | private runStats () { | |
131 | this.p2pEngine.on(Events.PieceBytesDownloaded, (method: string, _segment, bytes: number) => { | |
132 | const elem = method === 'p2p' ? this.statsP2PBytes : this.statsHTTPBytes | |
133 | ||
134 | elem.pendingDownload.push(bytes) | |
135 | elem.totalDownload += bytes | |
136 | }) | |
137 | ||
138 | this.p2pEngine.on(Events.PieceBytesUploaded, (method: string, _segment, bytes: number) => { | |
139 | const elem = method === 'p2p' ? this.statsP2PBytes : this.statsHTTPBytes | |
140 | ||
141 | elem.pendingUpload.push(bytes) | |
142 | elem.totalUpload += bytes | |
143 | }) | |
144 | ||
145 | this.p2pEngine.on(Events.PeerConnect, () => this.statsP2PBytes.numPeers++) | |
146 | this.p2pEngine.on(Events.PeerClose, () => this.statsP2PBytes.numPeers--) | |
147 | ||
148 | this.networkInfoInterval = setInterval(() => { | |
149 | const p2pDownloadSpeed = this.arraySum(this.statsP2PBytes.pendingDownload) | |
150 | const p2pUploadSpeed = this.arraySum(this.statsP2PBytes.pendingUpload) | |
151 | ||
152 | const httpDownloadSpeed = this.arraySum(this.statsHTTPBytes.pendingDownload) | |
153 | const httpUploadSpeed = this.arraySum(this.statsHTTPBytes.pendingUpload) | |
154 | ||
155 | this.statsP2PBytes.pendingDownload = [] | |
156 | this.statsP2PBytes.pendingUpload = [] | |
157 | this.statsHTTPBytes.pendingDownload = [] | |
158 | this.statsHTTPBytes.pendingUpload = [] | |
159 | ||
160 | return this.player.trigger('p2pInfo', { | |
161 | source: 'p2p-media-loader', | |
162 | http: { | |
163 | downloadSpeed: httpDownloadSpeed, | |
164 | uploadSpeed: httpUploadSpeed, | |
165 | downloaded: this.statsHTTPBytes.totalDownload, | |
166 | uploaded: this.statsHTTPBytes.totalUpload | |
167 | }, | |
168 | p2p: { | |
169 | downloadSpeed: p2pDownloadSpeed, | |
170 | uploadSpeed: p2pUploadSpeed, | |
171 | numPeers: this.statsP2PBytes.numPeers, | |
172 | downloaded: this.statsP2PBytes.totalDownload, | |
173 | uploaded: this.statsP2PBytes.totalUpload | |
174 | }, | |
175 | bandwidthEstimate: (this.hlsjs as any).bandwidthEstimate / 8 | |
176 | } as PlayerNetworkInfo) | |
177 | }, this.CONSTANTS.INFO_SCHEDULER) | |
178 | } | |
179 | ||
180 | private arraySum (data: number[]) { | |
181 | return data.reduce((a: number, b: number) => a + b, 0) | |
182 | } | |
183 | } | |
184 | ||
185 | videojs.registerPlugin('p2pMediaLoader', P2pMediaLoaderPlugin) | |
186 | export { P2pMediaLoaderPlugin } |