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Switch capture devices if the default device changes

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This is a bit of a hack, but is the only way I can see that we can
update to using the new default device when the OS-level default
changes. Hopefully the comments explain everything.
This commit is contained in:
David Baker 2023-10-03 18:22:56 +01:00
parent f779bc26cd
commit e0cabbc514
1 changed files with 45 additions and 6 deletions
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51
src/livekit/useLiveKit.ts
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@ -20,6 +20,7 @@ import {
ExternalE2EEKeyProvider,
Room,
RoomOptions,
Track,
} from "livekit-client";
import { useLiveKitRoom } from "@livekit/components-react";
import { useEffect, useMemo, useRef, useState } from "react";
@ -158,12 +159,50 @@ export function useLiveKit(
if (room !== undefined && connectionState === ConnectionState.Connected) {
const syncDevice = (kind: MediaDeviceKind, device: MediaDevice) => {
const id = device.selectedId;
if (id !== undefined && room.getActiveDevice(kind) !== id) {
room
.switchActiveDevice(kind, id)
.catch((e) =>
logger.error(`Failed to sync ${kind} device with LiveKit`, e)
);
// Detect if we're trying to use chrome's default device, in which case
// we need to to see if the default device has changed to a different device
// by comparing the group ID of the device we're using against the group ID
// of what the default device is *now*.
if (
id === "default" &&
kind === "audioinput" &&
room.options.audioCaptureDefaults?.deviceId === "default"
) {
const activeMicTrack = Array.from(
room.localParticipant.audioTracks.values()
).find((d) => d.source === Track.Source.Microphone)?.track;
const defaultDevice = device.available.find(
(d) => d.deviceId === "default"
);
if (
defaultDevice &&
activeMicTrack &&
// only restart if the stream is still running: LiveKit will detect
// when a track stops & restart appropriately, so this is not our job.
// Plus, we need to avoid restarting again if the track is already in
// the process of being restarted.
activeMicTrack.mediaStreamTrack.readyState !== "ended" &&
defaultDevice.groupId !==
activeMicTrack.mediaStreamTrack.getSettings().groupId
) {
// It's different, so restart the track, ie. cause Livekit to do another
// getUserMedia() call with deviceId: default to get the *new* default device.
// Note that room.switchActiveDevice() won't work: Livekit will ignore it because
// the deviceId hasn't changed (was & still is default).
room.localParticipant
.getTrack(Track.Source.Microphone)
?.audioTrack?.restartTrack();
}
} else {
if (id !== undefined && room.getActiveDevice(kind) !== id) {
room
.switchActiveDevice(kind, id)
.catch((e) =>
logger.error(`Failed to sync ${kind} device with LiveKit`, e)
);
}
}
};