mirror of
https://github.com/vector-im/element-call.git
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86 lines
2.5 KiB
TypeScript
86 lines
2.5 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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type AudioMediaTrack,
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type Behavior,
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type ObservableScope,
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} from "@element-hq/matrixrtc-sdk";
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import { combineLatest, map, of, switchMap } from "rxjs";
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import { logger } from "matrix-js-sdk/lib/logger";
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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 { memberTrack$ } from "./MemberMediaViewModel";
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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 media to arrive. This could be
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* because either we or the remote party are still connecting.
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*/
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waitingForMedia$: Behavior<boolean>;
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}
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export interface RemoteUserMediaInputs extends BaseUserMediaInputs {
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pretendToBeDisconnected$: Behavior<boolean>;
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}
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export function createRemoteUserMedia(
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scope: ObservableScope,
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{ pretendToBeDisconnected$, ...inputs }: RemoteUserMediaInputs,
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): RemoteUserMediaViewModel {
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const baseUserMedia = createBaseUserMedia(scope, inputs);
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const waitingForMedia$ = scope.behavior(
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combineLatest(
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[inputs.focusUrl$, inputs.media$],
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// Without a transport the user is not attempting to publish anywhere
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// and so we shouldn't expect media. (They might be a subscribe-only bot
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// for example.)
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(focusUrl, media) => focusUrl !== undefined && media === null,
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),
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);
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waitingForMedia$.pipe(scope.bind()).subscribe((waiting) => {
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logger.info(`[RemoteUserMedia ${inputs.id}] waitingForMedia=${waiting}`);
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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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memberTrack$<AudioMediaTrack>(inputs.media$, "microphone").pipe(
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map((track) => (volume: number) => track?.setVolume(volume)),
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),
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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$,
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};
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}
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