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* 3.7.0 * add `setUserId` * typofix for stats * add `VideoFreezesDetector` * add `layers` property to outbound track stats * add `usermediaerror` event * add `usingTURN` property to peer conections * add `using-turn` event to monitor * add `sendingFractionLost` to monitor * add `receivingFractionLost` to monitor
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,118 @@ | ||
| import EventEmitter from "events"; | ||
| import { InboundRtpEntry } from "../entries/StatsEntryInterfaces"; | ||
|
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| export type VideoFreezesDetectorConfig = { | ||
| // empty | ||
| } | ||
|
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| export type FreezedVideoStartedEvent = { | ||
| peerConnectionId: string | undefined, | ||
| trackId: string, | ||
| ssrc: number, | ||
| } | ||
|
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| export type FreezedVideoEndedEvent = { | ||
| peerConnectionId: string, | ||
| trackId: string, | ||
| durationInS: number, | ||
| } | ||
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| export type VideoFreezesDetectorEvents = { | ||
| freezedVideoStarted: [FreezedVideoStartedEvent], | ||
| freezedVideoEnded: [FreezedVideoEndedEvent], | ||
| close: [], | ||
| } | ||
|
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| type InboundRtpStatsTrace = { | ||
| ssrc: number, | ||
| lastFreezeCount: number, | ||
| freezedStartedDuration?: number, | ||
| freezed: boolean, | ||
| visited: boolean, | ||
| } | ||
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| export declare interface VideoFreezesDetector { | ||
| on<K extends keyof VideoFreezesDetectorEvents>(event: K, listener: (...events: VideoFreezesDetectorEvents[K]) => void): this; | ||
| off<K extends keyof VideoFreezesDetectorEvents>(event: K, listener: (...events: VideoFreezesDetectorEvents[K]) => void): this; | ||
| once<K extends keyof VideoFreezesDetectorEvents>(event: K, listener: (...events: VideoFreezesDetectorEvents[K]) => void): this; | ||
| emit<K extends keyof VideoFreezesDetectorEvents>(event: K, ...events: VideoFreezesDetectorEvents[K]): boolean; | ||
| } | ||
|
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| export class VideoFreezesDetector extends EventEmitter { | ||
| private _closed = false; | ||
| private readonly _traces = new Map<number, InboundRtpStatsTrace>(); | ||
|
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| public constructor( | ||
| public readonly config: VideoFreezesDetectorConfig, | ||
| ) { | ||
| super(); | ||
| this.setMaxListeners(Infinity); | ||
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| } | ||
|
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| public close() { | ||
| if (this._closed) return; | ||
| this._closed = true; | ||
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| this._traces.clear(); | ||
| this.emit('close'); | ||
| } | ||
|
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| public update(inboundRtps: IterableIterator<InboundRtpEntry>) { | ||
| for (const inboundRtp of inboundRtps) { | ||
| const stats = inboundRtp.stats; | ||
| const trackId = inboundRtp.getTrackId(); | ||
| const ssrc = stats.ssrc; | ||
| if (stats.kind !== 'video' || trackId === undefined) { | ||
| continue; | ||
| } | ||
|
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| let trace = this._traces.get(ssrc); | ||
| if (!trace) { | ||
| trace = { | ||
| ssrc, | ||
| lastFreezeCount: 0, | ||
| freezed: false, | ||
| freezedStartedDuration: 0, | ||
| visited: false, | ||
| }; | ||
| this._traces.set(ssrc, trace); | ||
| } | ||
|
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| const wasFreezed = trace.freezed; | ||
|
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| trace.visited = true; | ||
| trace.freezed = 0 < Math.max(0, (stats.freezeCount ?? 0) - trace.lastFreezeCount); | ||
| trace.lastFreezeCount = stats.freezeCount ?? 0; | ||
|
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| if (!wasFreezed && trace.freezed) { | ||
| trace.freezedStartedDuration = stats.totalFreezesDuration ?? 0; | ||
| this.emit('freezedVideoStarted', { | ||
| peerConnectionId: inboundRtp.getPeerConnection()?.peerConnectionId, | ||
| trackId, | ||
| ssrc, | ||
| }) | ||
| } else if (wasFreezed && !trace.freezed) { | ||
| const durationInS = Math.max(0, (stats.totalFreezesDuration ?? 0) - (trace.freezedStartedDuration ?? 0)); | ||
|
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| trace.freezedStartedDuration = undefined; | ||
|
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| 0 < durationInS && this.emit('freezedVideoEnded', { | ||
| peerConnectionId: inboundRtp.getPeerConnection()?.peerConnectionId, | ||
| trackId, | ||
| durationInS, | ||
| }) | ||
| } | ||
| } | ||
|
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| for (const trace of this._traces.values()) { | ||
| if (trace.visited) { | ||
| trace.visited = false; | ||
|
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| continue; | ||
| } | ||
|
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| this._traces.delete(trace.ssrc); | ||
| } | ||
| } | ||
| } |
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