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useMembraneMediaStreaming.tsx
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useMembraneMediaStreaming.tsx
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import { useCallback, useEffect, useMemo, useRef, useState } from "react";
import { TrackMetadata, useApi } from "../../../jellyfish.types.ts";
import { useDeveloperInfo } from "../../../contexts/DeveloperInfoContext.tsx";
import { selectBandwidthLimit } from "../bandwidth.tsx";
import { UseCameraResult, UseMicrophoneResult, UseScreenshareResult } from "@jellyfish-dev/react-client-sdk";
export type MembraneStreaming = {
trackId: string | null;
removeTracks: () => void;
addTracks: () => void;
setActive: (status: boolean) => void;
updateTrackMetadata: (metadata: TrackMetadata) => void;
trackMetadata: TrackMetadata | null;
};
export type StreamingMode = "manual" | "automatic";
type TrackIds = {
localId: string;
remoteId: string;
};
export const useMembraneMediaStreaming = (
mode: StreamingMode,
{
type,
device,
}:
| {
type: "screensharing";
device: UseScreenshareResult<TrackMetadata>;
}
| {
type: "audio";
device: UseMicrophoneResult<TrackMetadata>;
},
isConnected: boolean
): MembraneStreaming => {
const [trackIds, setTrackIds] = useState<TrackIds | null>(null);
const api = useApi();
const deviceRemoveTrackRef = useRef(device.removeTrack);
useEffect(() => {
deviceRemoveTrackRef.current = device.removeTrack;
}, [device.removeTrack]);
const [trackMetadata, setTrackMetadata] = useState<TrackMetadata | null>(null);
const defaultTrackMetadata = useMemo(() => ({ active: device.enabled, type }), [device.enabled, type]);
const addTracks = useCallback(
async () => {
await device.addTrack(
defaultTrackMetadata,
selectBandwidthLimit(type, false)
);
setTrackMetadata(defaultTrackMetadata);
},
[defaultTrackMetadata, type]
);
const replaceTrack = useCallback(
async () => {
if (!trackIds || !device.stream) return;
if (!device.track) {
console.error({ stream: device.stream, type });
throw Error("Stream has no tracks!");
}
await device.replaceTrack(device.track, device.stream);
},
[device.stream, device.track, trackIds, type]
);
const removeTracks = useCallback(() => {
setTrackMetadata(null);
deviceRemoveTrackRef.current();
}, []);
useEffect(() => {
(async () => {
if (!api || !isConnected || mode !== "automatic") {
return;
}
const stream = device.stream;
const localTrackId: string | undefined = device.track?.id;
if (stream && !trackIds) {
await addTracks();
} else if (stream && trackIds && trackIds.localId !== localTrackId) {
await replaceTrack();
} else if (!stream && trackIds) {
removeTracks();
}
})();
}, [api, device.stream, device.track, device.enabled, isConnected, addTracks, mode, removeTracks, trackIds, replaceTrack, type]);
useEffect(() => {
if (device.track?.id && device.broadcast?.trackId) {
setTrackIds({ localId: device.track?.id, remoteId: device.broadcast?.trackId });
} else if (trackIds !== null) {
setTrackIds(null);
}
}, [device.track?.id, device.broadcast?.trackId]);
const updateTrackMetadata = useCallback(
(metadata: TrackMetadata) => {
if (!trackIds) return;
api?.updateTrackMetadata(trackIds.remoteId, metadata);
setTrackMetadata(metadata);
},
[api, trackIds]
);
const setActive = useCallback(
(status: boolean) => {
if (trackMetadata) {
updateTrackMetadata({ ...trackMetadata, active: status });
} else {
throw Error("Track metadata is null!");
}
},
[trackMetadata, updateTrackMetadata]
);
return {
trackId: trackIds?.remoteId || null,
removeTracks,
addTracks,
setActive,
updateTrackMetadata,
trackMetadata,
};
};
export const useMembraneCameraStreaming = (
mode: StreamingMode,
device: UseCameraResult<TrackMetadata>,
isConnected: boolean
): MembraneStreaming => {
const [trackIds, setTrackIds] = useState<TrackIds | null>(null);
const api = useApi();
const { simulcast } = useDeveloperInfo();
const simulcastEnabled = simulcast.status;
const [trackMetadata, setTrackMetadata] = useState<TrackMetadata | null>(null);
const defaultTrackMetadata = useMemo(() => ({ active: device.enabled, type: "camera" as const }), [device.enabled]);
const addTracks = useCallback(async () => {
if (!device.track || !device.stream) return;
const remoteId = await api.addTrack(
device.track,
device.stream,
defaultTrackMetadata,
simulcastEnabled ? { enabled: true, activeEncodings: ["l", "m", "h"], disabledEncodings: [] } : undefined,
selectBandwidthLimit("camera", simulcastEnabled)
);
setTrackMetadata(defaultTrackMetadata);
setTrackIds({
localId: device.track.id,
remoteId,
});
}, [api, device.addTrack, defaultTrackMetadata, simulcastEnabled]);
const replaceTrack = useCallback(async () => {
if (!trackIds || !device.stream) return;
if (!device.track) {
console.error({ stream: device.stream, type: "camera" });
throw Error("Stream has no tracks!");
}
await api.replaceTrack(trackIds.remoteId, device.track, device.stream);
setTrackIds({ ...trackIds, localId: device.track.id });
}, [api, device.stream, device.track, trackIds]);
const removeTracks = useCallback(() => {
if (!trackIds) return;
api.removeTrack(trackIds.localId);
setTrackMetadata(null);
}, [api, trackIds]);
useEffect(() => {
if (!api || !isConnected || mode !== "automatic") {
return;
}
const stream = device.stream;
const localTrackId: string | undefined = device.track?.id;
if (stream && !trackIds) {
addTracks();
} else if (stream && trackIds && trackIds.localId !== localTrackId) {
replaceTrack();
} else if (!stream && trackIds) {
removeTracks();
}
}, [
api,
device.stream,
device.track,
device.enabled,
isConnected,
addTracks,
mode,
removeTracks,
trackIds,
replaceTrack,
]);
const updateTrackMetadata = useCallback(
(metadata: TrackMetadata) => {
if (!trackIds) return;
api?.updateTrackMetadata(trackIds.remoteId, metadata);
setTrackMetadata(metadata);
},
[api, trackIds]
);
const setActive = useCallback(
(status: boolean) => {
if (trackMetadata) {
updateTrackMetadata({ ...trackMetadata, active: status });
} else {
throw Error("Track metadata is null!");
}
},
[trackMetadata, updateTrackMetadata]
);
return {
trackId: trackIds?.remoteId || null,
removeTracks,
addTracks,
setActive,
updateTrackMetadata,
trackMetadata,
};
};