97 lines
2.6 KiB
TypeScript
97 lines
2.6 KiB
TypeScript
/*
|
|
Copyright 2022 New Vector Ltd
|
|
|
|
Licensed under the Apache License, Version 2.0 (the "License");
|
|
you may not use this file except in compliance with the License.
|
|
You may obtain a copy of the License at
|
|
|
|
http://www.apache.org/licenses/LICENSE-2.0
|
|
|
|
Unless required by applicable law or agreed to in writing, software
|
|
distributed under the License is distributed on an "AS IS" BASIS,
|
|
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
See the License for the specific language governing permissions and
|
|
limitations under the License.
|
|
*/
|
|
|
|
import React, { FC, useEffect, useRef } from "react";
|
|
|
|
import { Participant } from "../room/InCallView";
|
|
import { useCallFeed } from "./useCallFeed";
|
|
import { useMediaStreamTrackCount } from "./useMediaStream";
|
|
|
|
// XXX: These in fact do not render anything but to my knowledge this is the
|
|
// only way to a hook on an array
|
|
|
|
interface AudioForParticipantProps {
|
|
item: Participant;
|
|
audioContext: AudioContext;
|
|
audioDestination: AudioNode;
|
|
}
|
|
|
|
export const AudioForParticipant: FC<AudioForParticipantProps> = ({
|
|
item,
|
|
audioContext,
|
|
audioDestination,
|
|
}) => {
|
|
const { stream, localVolume } = useCallFeed(item.callFeed);
|
|
const [audioTrackCount] = useMediaStreamTrackCount(stream);
|
|
|
|
const gainNodeRef = useRef<GainNode>();
|
|
const sourceRef = useRef<MediaStreamAudioSourceNode>();
|
|
|
|
useEffect(() => {
|
|
// We don't compare the audioMuted flag of useCallFeed here, since unmuting
|
|
// depends on to-device messages which may lag behind the audio actually
|
|
// starting to flow over the network
|
|
if (!item.isLocal && audioContext && audioTrackCount > 0) {
|
|
if (!gainNodeRef.current) {
|
|
gainNodeRef.current = new GainNode(audioContext, {
|
|
gain: localVolume,
|
|
});
|
|
}
|
|
if (!sourceRef.current) {
|
|
sourceRef.current = audioContext.createMediaStreamSource(stream);
|
|
}
|
|
|
|
const source = sourceRef.current;
|
|
const gainNode = gainNodeRef.current;
|
|
|
|
gainNode.gain.value = localVolume;
|
|
source.connect(gainNode).connect(audioDestination);
|
|
|
|
return () => {
|
|
source.disconnect();
|
|
gainNode.disconnect();
|
|
};
|
|
}
|
|
}, [
|
|
item,
|
|
audioContext,
|
|
audioDestination,
|
|
stream,
|
|
localVolume,
|
|
audioTrackCount,
|
|
]);
|
|
|
|
return null;
|
|
};
|
|
|
|
interface AudioContainerProps {
|
|
items: Participant[];
|
|
audioContext: AudioContext;
|
|
audioDestination: AudioNode;
|
|
}
|
|
|
|
export const AudioContainer: FC<AudioContainerProps> = ({ items, ...rest }) => {
|
|
return (
|
|
<>
|
|
{items
|
|
.filter((item) => !item.isLocal)
|
|
.map((item) => (
|
|
<AudioForParticipant key={item.id} item={item} {...rest} />
|
|
))}
|
|
</>
|
|
);
|
|
};
|