homebridge-nest-cam-ft
Version:
Nest cam plugin for homebridge: https://homebridge.io/
62 lines • 2.07 kB
JavaScript
;
var __importDefault = (this && this.__importDefault) || function (mod) {
return (mod && mod.__esModule) ? mod : { "default": mod };
};
Object.defineProperty(exports, "__esModule", { value: true });
exports.reservePorts = exports.RtpSplitter = void 0;
const dgram_1 = require("dgram");
const get_port_1 = __importDefault(require("get-port"));
function getPayloadType(message) {
return message.readUInt8(1) & 0x7f;
}
function isRtpMessage(message) {
const payloadType = getPayloadType(message);
return payloadType > 90 || payloadType === 0;
}
class RtpSplitter {
constructor(serverPort, audioRTCPPort, returnAudioPort) {
this.socket = (0, dgram_1.createSocket)('udp4');
const socket = this.socket;
socket.on('error', (error) => {
console.log('Error: ' + error);
socket.close();
});
socket.on('message', (msg) => {
if (isRtpMessage(msg)) {
if (msg.length > 50) {
socket.send(msg, returnAudioPort, 'localhost');
}
else {
socket.send(msg, audioRTCPPort, 'localhost');
}
}
else {
socket.send(msg, audioRTCPPort, 'localhost');
socket.send(msg, returnAudioPort, 'localhost');
}
});
socket.bind(serverPort);
}
close() {
this.socket.close();
}
}
exports.RtpSplitter = RtpSplitter;
async function reservePorts(count = 1) {
const port = await (0, get_port_1.default)();
const ports = [port];
const tryAgain = () => {
return reservePorts(count);
};
for (let i = 1; i < count; i++) {
const targetConsecutivePort = port + i;
const openPort = await (0, get_port_1.default)({ port: targetConsecutivePort });
if (openPort !== targetConsecutivePort) {
return tryAgain();
}
ports.push(openPort);
}
return ports;
}
exports.reservePorts = reservePorts;
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