70 lines
1.6 KiB
TypeScript
70 lines
1.6 KiB
TypeScript
/*
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Copyright 2023, 2024 New Vector Ltd.
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Copyright 2026 Element Creations Ltd.
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SPDX-License-Identifier: AGPL-3.0-only OR LicenseRef-Element-Commercial
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Please see LICENSE in the repository root for full details.
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*/
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import {
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LocalTrack,
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type Participant,
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RemoteTrack,
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type Track,
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} from "livekit-client";
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import {
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combineLatest,
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interval,
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type Observable,
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startWith,
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switchMap,
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map,
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} from "rxjs";
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import { observeTrackReference$ } from "../observeTrackReference";
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export function observeRtpStreamStats$(
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participant: Participant,
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source: Track.Source,
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type: "inbound-rtp" | "outbound-rtp",
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): Observable<
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RTCInboundRtpStreamStats | RTCOutboundRtpStreamStats | undefined
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> {
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return combineLatest([
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observeTrackReference$(participant, source),
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interval(1000).pipe(startWith(0)),
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]).pipe(
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switchMap(async ([trackReference]) => {
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const track = trackReference?.publication?.track;
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if (
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!track ||
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!(track instanceof RemoteTrack || track instanceof LocalTrack)
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) {
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return undefined;
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}
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const report = await track.getRTCStatsReport();
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if (!report) {
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return undefined;
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}
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for (const v of report.values()) {
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if (v.type === type) {
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return v;
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}
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}
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return undefined;
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}),
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startWith(undefined),
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);
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}
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export function observeInboundRtpStreamStats$(
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participant: Participant,
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source: Track.Source,
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): Observable<RTCInboundRtpStreamStats | undefined> {
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return observeRtpStreamStats$(participant, source, "inbound-rtp").pipe(
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map((x) => x as RTCInboundRtpStreamStats | undefined),
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);
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}
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