added simple WebRTC video switching when 0 fps.

This commit is contained in:
Miroslav Šedivý 2021-02-10 19:27:34 +01:00
parent e28b714090
commit 221dd29968
2 changed files with 38 additions and 0 deletions

View File

@ -90,6 +90,7 @@
stats: null,
video: null,
videos: [],
auto: true,
},
type: 'none',
},
@ -283,6 +284,10 @@
this.websocket.send('signal/video', { video: video })
}
public setWebRTCAuto(auto: boolean = true) {
Vue.set(this.state.connection.webrtc, 'auto', auto)
}
public sendUnicast(receiver: string, subject: string, body: any) {
this.websocket.send('send/unicast', { receiver, subject, body })
}
@ -385,8 +390,40 @@
this.webrtc.on('candidate', (candidate: RTCIceCandidateInit) => {
this.websocket.send('signal/candidate', candidate)
})
let webrtcCongestion: number = 0
this.webrtc.on('stats', (stats: WebRTCStats) => {
Vue.set(this.state.connection.webrtc, 'stats', stats)
// if automatic quality adjusting is turned off
if (!this.state.connection.webrtc.auto) return
// if there are no or just one quality, no switching can be done
if (this.state.connection.webrtc.videos.length <= 1) return
// current quality is not known
if (this.state.connection.webrtc.video == null) return
// check if video is not playing
if (stats.fps) {
webrtcCongestion = 0
return
}
// try to downgrade quality if it happend many times
if (++webrtcCongestion >= 3) {
let index = this.state.connection.webrtc.videos.indexOf(this.state.connection.webrtc.video)
// edge case: current quality is not in qualities list
if (index === -1) return
// current quality is the lowest one
if (index + 1 == this.state.connection.webrtc.videos.length) return
// downgrade video quality
this.setWebRTCVideo(this.state.connection.webrtc.videos[index + 1])
webrtcCongestion = 0
}
})
this.webrtc.on('connecting', () => {
Vue.set(this.state.connection.webrtc, 'status', 'connecting')

View File

@ -22,6 +22,7 @@ export interface WebRTC {
stats: WebRTCStats | null
video: string | null
videos: string[]
auto: boolean
}
export interface WebRTCStats {