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add webrtc fallback timeout.

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This commit is contained in:
Miroslav Šedivý 2021-07-28 00:21:27 +02:00
parent 27422294bc
commit f8b1177178
1 changed files with 13 additions and 4 deletions
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13
src/component/internal/connection.ts
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@ -13,6 +13,8 @@ import { WebrtcReconnector } from './reconnector/webrtc'
const WEBRTC_RECONN_MAX_LOSS = 25 const WEBRTC_RECONN_MAX_LOSS = 25
const WEBRTC_RECONN_FAILED_ATTEMPTS = 5 const WEBRTC_RECONN_FAILED_ATTEMPTS = 5
const WEBRTC_FALLBACK_TIMEOUT_MS = 750
export interface NekoConnectionEvents { export interface NekoConnectionEvents {
close: (error?: Error) => void close: (error?: Error) => void
} }
@ -72,6 +74,7 @@ export class NekoConnection extends EventEmitter<NekoConnectionEvents> {
this._reconnector.webrtc.on('close', this.close.bind(this)) this._reconnector.webrtc.on('close', this.close.bind(this))
let webrtcCongestion: number = 0 let webrtcCongestion: number = 0
let webrtcFallbackTimeout: number
this.webrtc.on('stats', (stats: WebRTCStats) => { this.webrtc.on('stats', (stats: WebRTCStats) => {
Vue.set(this._state.webrtc, 'stats', stats) Vue.set(this._state.webrtc, 'stats', stats)
@ -86,6 +89,10 @@ export class NekoConnection extends EventEmitter<NekoConnectionEvents> {
// check if video is not playing smoothly // check if video is not playing smoothly
if (stats.fps && stats.packetLoss < WEBRTC_RECONN_MAX_LOSS && !stats.muted) { if (stats.fps && stats.packetLoss < WEBRTC_RECONN_MAX_LOSS && !stats.muted) {
if (webrtcFallbackTimeout) {
window.clearTimeout(webrtcFallbackTimeout)
}
if (this._state.type === 'fallback') { if (this._state.type === 'fallback') {
Vue.set(this._state, 'type', 'webrtc') Vue.set(this._state, 'type', 'webrtc')
} }
@ -94,12 +101,14 @@ export class NekoConnection extends EventEmitter<NekoConnectionEvents> {
return return
} }
// try to downgrade quality if it happend many times
if (++webrtcCongestion >= WEBRTC_RECONN_FAILED_ATTEMPTS) {
webrtcFallbackTimeout = window.setTimeout(() => {
if (this._state.type === 'webrtc') { if (this._state.type === 'webrtc') {
Vue.set(this._state, 'type', 'fallback') Vue.set(this._state, 'type', 'fallback')
} }
}, WEBRTC_FALLBACK_TIMEOUT_MS)
// try to downgrade quality if it happend many times
if (++webrtcCongestion >= WEBRTC_RECONN_FAILED_ATTEMPTS) {
webrtcCongestion = 0 webrtcCongestion = 0
const quality = this._webrtcQualityDowngrade(this._state.webrtc.video) const quality = this._webrtcQualityDowngrade(this._state.webrtc.video)