mirror of
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83 lines
2.4 KiB
TypeScript
83 lines
2.4 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 { type RemoteParticipant } from "livekit-client";
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import { combineLatest, map, of, switchMap } from "rxjs";
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import { type Behavior } from "../Behavior";
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import { createVolumeControls, type VolumeControls } from "../VolumeControls";
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import {
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type BaseUserMediaInputs,
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type BaseUserMediaViewModel,
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createBaseUserMedia,
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} from "./UserMediaViewModel";
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import { type ObservableScope } from "../ObservableScope";
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export interface RemoteUserMediaViewModel
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extends BaseUserMediaViewModel, VolumeControls {
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local: false;
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/**
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* Whether we are waiting for this user's LiveKit participant to exist. This
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* could be because either we or the remote party are still connecting.
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*/
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waitingForMedia$: Behavior<boolean>;
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}
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export interface RemoteUserMediaInputs extends Omit<
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BaseUserMediaInputs,
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"statsType"
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> {
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participant$: Behavior<RemoteParticipant | null>;
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pretendToBeDisconnected$: Behavior<boolean>;
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}
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export function createRemoteUserMedia(
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scope: ObservableScope,
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{ pretendToBeDisconnected$, ...inputs }: RemoteUserMediaInputs,
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): RemoteUserMediaViewModel {
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const baseUserMedia = createBaseUserMedia(scope, {
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...inputs,
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statsType: "inbound-rtp",
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});
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return {
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...baseUserMedia,
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...createVolumeControls(scope, {
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pretendToBeDisconnected$,
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sink$: scope.behavior(
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inputs.participant$.pipe(map((p) => (volume) => p?.setVolume(volume))),
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),
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}),
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local: false,
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speaking$: scope.behavior(
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pretendToBeDisconnected$.pipe(
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switchMap((disconnected) =>
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disconnected ? of(false) : baseUserMedia.speaking$,
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),
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),
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),
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videoEnabled$: scope.behavior(
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pretendToBeDisconnected$.pipe(
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switchMap((disconnected) =>
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disconnected ? of(false) : baseUserMedia.videoEnabled$,
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),
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),
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),
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waitingForMedia$: scope.behavior(
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combineLatest(
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[inputs.livekitRoom$, inputs.participant$],
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(livekitRoom, participant) =>
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// If livekitRoom is undefined, the user is not attempting to publish on
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// any transport and so we shouldn't expect a participant. (They might
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// be a subscribe-only bot for example.)
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livekitRoom !== undefined && participant === null,
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),
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),
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};
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}
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