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Merge pull request #85 from cloudflare/improved-connection-indicators
Add connection quality indicators
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,40 @@ | ||
| import { useState } from 'react' | ||
| import { cn } from '~/utils/style' | ||
| import { Icon } from './Icon/Icon' | ||
| import { Tooltip } from './Tooltip' | ||
|
|
||
| export type ConnectionQuality = 'healthy' | 'tolerable' | 'unhealthy' | 'bad' | ||
|
|
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| export function getConnectionQuality(packetLoss: number): ConnectionQuality { | ||
| if (packetLoss > 0.05) return 'bad' | ||
| if (packetLoss > 0.03) return 'unhealthy' | ||
| if (packetLoss > 0.01) return 'tolerable' | ||
| return 'healthy' | ||
| } | ||
|
|
||
| export function ConnectionIndicator(props: { quality: ConnectionQuality }) { | ||
| const [open, setOpen] = useState(false) | ||
| return ( | ||
| <Tooltip | ||
| open={open} | ||
| onOpenChange={setOpen} | ||
| content={`Connection is ${props.quality}`} | ||
| > | ||
| <button onClick={() => setOpen(!open)}> | ||
| <Icon | ||
| className={cn( | ||
| props.quality === 'healthy' && 'text-green-400', | ||
| props.quality === 'tolerable' && 'text-green-400', | ||
| props.quality === 'unhealthy' && 'text-yellow-400', | ||
| props.quality === 'bad' && 'text-red-400' | ||
| )} | ||
| type={ | ||
| props.quality === 'bad' || props.quality === 'unhealthy' | ||
| ? 'SignalSlashIcon' | ||
| : 'SignalIcon' | ||
| } | ||
| /> | ||
| </button> | ||
| </Tooltip> | ||
| ) | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,16 @@ | ||
| import { Observable } from 'rxjs' | ||
| import Ewma from '../ewma' | ||
|
|
||
| export const ewma = | ||
| (halflifeTime: number, defaultValue = 0) => | ||
| (observable: Observable<number>) => | ||
| new Observable<number>((subscribe) => { | ||
| const ewma = new Ewma(halflifeTime, defaultValue) | ||
| observable.subscribe({ | ||
| ...subscribe, | ||
| next: (value) => { | ||
| ewma.insert(value) | ||
| subscribe.next(ewma.value()) | ||
| }, | ||
| }) | ||
| }) |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,95 @@ | ||
| import type { Observable } from 'rxjs' | ||
| import { combineLatest, interval, map, pairwise, switchMap } from 'rxjs' | ||
|
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| export interface PacketLossStats { | ||
| inboundPacketLossPercentage: number | ||
| outboundPacketLossPercentage: number | ||
| } | ||
|
|
||
| function statsReports$( | ||
| peerConnection$: Observable<RTCPeerConnection>, | ||
| statReportInterval = 3000 | ||
| ) { | ||
| return combineLatest([peerConnection$, interval(statReportInterval)]).pipe( | ||
| switchMap(([peerConnection]) => peerConnection.getStats()), | ||
| pairwise() | ||
| ) | ||
| } | ||
|
|
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| export function getPacketLoss$( | ||
| peerConnection$: Observable<RTCPeerConnection>, | ||
| tracks$: Observable<MediaStreamTrack[]> | ||
| ) { | ||
| return combineLatest([ | ||
| tracks$, | ||
| peerConnection$, | ||
| statsReports$(peerConnection$), | ||
| ]).pipe( | ||
| map(([tracks, peerConnection, [previousStatsReport, newStatsReport]]) => { | ||
| const trackToMidMap = peerConnection | ||
| .getTransceivers() | ||
| .reduce((map, t) => { | ||
| const track = t.sender.track ?? t.receiver.track | ||
| if (track !== null && t.mid !== null) { | ||
| map.set(track, t.mid) | ||
| } | ||
| return map | ||
| }, new Map<MediaStreamTrack, string>()) | ||
| const relevantMids = new Set<string>() | ||
| for (const track of tracks) { | ||
| const mid = trackToMidMap.get(track) | ||
| if (mid) { | ||
| relevantMids.add(mid) | ||
| } | ||
| } | ||
| let inboundPacketsReceived = 0 | ||
| let inboundPacketsLost = 0 | ||
| let outboundPacketsSent = 0 | ||
| let outboundPacketsLost = 0 | ||
|
|
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| newStatsReport.forEach((report) => { | ||
| if (!relevantMids.has(report.mid)) return | ||
| const previous = previousStatsReport.get(report.id) | ||
| if (!previous) return | ||
|
|
||
| if (report.type === 'inbound-rtp') { | ||
| inboundPacketsLost += report.packetsLost - previous.packetsLost | ||
| inboundPacketsReceived += | ||
| report.packetsReceived - previous.packetsReceived | ||
| } else if (report.type === 'outbound-rtp') { | ||
| const packetsSent = report.packetsSent - previous.packetsSent | ||
| // Find the corresponding remote-inbound-rtp report | ||
| const remoteInboundReport = Array.from(newStatsReport.values()).find( | ||
| (r) => r.type === 'remote-inbound-rtp' && r.ssrc === report.ssrc | ||
| ) | ||
| const previousRemoteInboundReport = Array.from( | ||
| previousStatsReport.values() | ||
| ).find( | ||
| (r) => r.type === 'remote-inbound-rtp' && r.ssrc === previous.ssrc | ||
| ) | ||
| if ( | ||
| remoteInboundReport && | ||
| previousRemoteInboundReport && | ||
| packetsSent > 0 | ||
| ) { | ||
| outboundPacketsSent += report.packetsSent - previous.packetsSent | ||
| outboundPacketsLost += | ||
| remoteInboundReport.packetsLost - | ||
| previousRemoteInboundReport.packetsLost | ||
| } | ||
| } | ||
| }) | ||
|
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| let packetsLost = inboundPacketsLost + outboundPacketsLost | ||
| let packetsSent = | ||
| inboundPacketsReceived + outboundPacketsSent + packetsLost | ||
| let packetLossPercentage = 0 | ||
|
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| if (packetsSent > 0) { | ||
| packetLossPercentage = Math.max(0, packetsLost / packetsSent) | ||
| } | ||
|
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| return packetLossPercentage | ||
| }) | ||
| ) | ||
| } |