99ce5064f5
To track media devices, we were previously relying on a combination of LiveKit's useMediaDeviceSelect hook, and an object called UserChoices. Device settings should be accessible from outside a call, but the latter hook should only be used with a room or set of preview tracks, so it couldn't be raised to the app's top level. I also felt that the UserChoices code was hard to follow due to lack of clear ownership of the object. To bring clarity to media device handling and allow device settings to be shown outside a call, I refactored these things into a single MediaDevicesContext which is instantiated at the top level of the app. Then, I had to manually sync LiveKit's device state with whatever is present in the context. This refactoring ended up fixing a couple other bugs with device handling along the way.
78 lines
2.0 KiB
TypeScript
78 lines
2.0 KiB
TypeScript
/*
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Copyright 2023 New Vector Ltd
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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import { Dispatch, SetStateAction, useMemo } from "react";
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import { MediaDevice, useMediaDevices } from "../livekit/MediaDevicesContext";
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import { useReactiveState } from "../useReactiveState";
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/**
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* If there already is this many participants in the call, we automatically mute
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* the user
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*/
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const MUTE_PARTICIPANT_COUNT = 8;
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interface DeviceAvailable {
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enabled: boolean;
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setEnabled: Dispatch<SetStateAction<boolean>>;
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}
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interface DeviceUnavailable {
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enabled: false;
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setEnabled: null;
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}
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const deviceUnavailable: DeviceUnavailable = {
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enabled: false,
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setEnabled: null,
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};
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type MuteState = DeviceAvailable | DeviceUnavailable;
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export interface MuteStates {
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audio: MuteState;
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video: MuteState;
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}
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function useMuteState(
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device: MediaDevice,
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enabledByDefault: () => boolean
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): MuteState {
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const [enabled, setEnabled] = useReactiveState<boolean>(
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(prev) => device.available.length > 0 && (prev ?? enabledByDefault()),
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[device]
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);
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return useMemo(
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() =>
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device.available.length === 0
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? deviceUnavailable
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: { enabled, setEnabled },
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[device, enabled, setEnabled]
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);
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}
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export function useMuteStates(participantCount: number): MuteStates {
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const devices = useMediaDevices();
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const audio = useMuteState(
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devices.audioInput,
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() => participantCount <= MUTE_PARTICIPANT_COUNT
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);
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const video = useMuteState(devices.videoInput, () => true);
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return useMemo(() => ({ audio, video }), [audio, video]);
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}
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