29 lines
884 B
TypeScript
29 lines
884 B
TypeScript
/*
|
|
Copyright 2023, 2024 New Vector Ltd.
|
|
Copyright 2026 Element Creations Ltd.
|
|
|
|
SPDX-License-Identifier: AGPL-3.0-only OR LicenseRef-Element-Commercial
|
|
Please see LICENSE in the repository root for full details.
|
|
*/
|
|
|
|
import {
|
|
observeParticipantMedia,
|
|
type TrackReference,
|
|
} from "@livekit/components-core";
|
|
import { type Participant, type Track } from "livekit-client";
|
|
import { distinctUntilChanged, map, type Observable } from "rxjs";
|
|
|
|
/**
|
|
* Reactively reads a participant's track reference for a given media source.
|
|
*/
|
|
export function observeTrackReference$(
|
|
participant: Participant,
|
|
source: Track.Source,
|
|
): Observable<TrackReference | undefined> {
|
|
return observeParticipantMedia(participant).pipe(
|
|
map(() => participant.getTrackPublication(source)),
|
|
distinctUntilChanged(),
|
|
map((publication) => publication && { participant, publication, source }),
|
|
);
|
|
}
|