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path: root/src/webrtc/util/MediaServer.ts
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import { WebSocket } from "@fosscord/gateway";
import MediaServer, {
	IncomingStream,
	OutgoingStream,
	Transport,
} from "medooze-media-server";
import SemanticSDP from "semantic-sdp";
MediaServer.enableLog(true);

export const PublicIP = process.env.PUBLIC_IP || "127.0.0.1";

try {
	const range = process.env.WEBRTC_PORT_RANGE || "4000";
	var ports = range.split("-");
	const min = Number(ports[0]);
	const max = Number(ports[1]);

	MediaServer.setPortRange(min, max);
} catch (error) {
	console.error(
		"Invalid env var: WEBRTC_PORT_RANGE",
		process.env.WEBRTC_PORT_RANGE,
		error,
	);
	process.exit(1);
}

export const endpoint = MediaServer.createEndpoint(PublicIP);

export const channels = new Map<string, Set<Client>>();

export interface Client {
	transport?: Transport;
	websocket: WebSocket;
	out: {
		stream?: OutgoingStream;
		tracks: Map<
			string,
			{
				audio_ssrc: number;
				video_ssrc: number;
				rtx_ssrc: number;
			}
		>;
	};
	in: {
		stream?: IncomingStream;
		audio_ssrc: number;
		video_ssrc: number;
		rtx_ssrc: number;
	};
	sdp: SemanticSDP.SDPInfo;
	channel_id: string;
}

export function getClients(channel_id: string) {
	if (!channels.has(channel_id)) channels.set(channel_id, new Set());
	return channels.get(channel_id)!;
}