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add mjpeg server

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This commit is contained in:
DavidVentura
2024-01-29 12:16:28 +01:00
parent 419e5fcc82
commit 3f217d5c32
2 changed files with 65 additions and 54 deletions
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server.ts
+3 -54
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@@ -1,9 +1,8 @@
import { createSocket, RemoteInfo } from "node:dgram";
import { createWriteStream } from "node:fs";
import { create_LanSearch } from "./func_replacements.js";
import { Commands, CommandsByValue } from "./datatypes.js";
import { handle_P2PAlive, handle_PunchPkt, handle_P2PRdy, handle_Drw, notImpl, noop } from "./handlers.js";
import { hexdump } from "./hexdump.js";
import { SendDevStatus } from "./impl.js";
import EventEmitter from "node:events";
export type Session = {
@@ -25,7 +24,7 @@ type opt = {
type msgCb = (session: Session, msg: Buffer, rinfo: RemoteInfo, options: opt) => void;
type connCb = (session: Session) => void;
const makeSession = (cb: msgCb, connCb: connCb, options: opt): Session => {
export const makeSession = (cb: msgCb, connCb: connCb, options: opt): Session => {
const sock = createSocket("udp4");
sock.on("error", (err) => {
@@ -59,7 +58,6 @@ const makeSession = (cb: msgCb, connCb: connCb, options: opt): Session => {
console.log(hexdump(msg.buffer, { ansi: options.ansi, ansiColor: 0 }));
}
if (raw == Commands.Drw) {
// not sure why cmd == Commands.Drw does not work
session.outgoingCommandId++;
}
sock.send(new Uint8Array(msg.buffer), SEND_PORT, session.dst_ip);
@@ -70,7 +68,7 @@ const makeSession = (cb: msgCb, connCb: connCb, options: opt): Session => {
return session;
};
const Handlers: Record<keyof typeof Commands, PacketHandler> = {
export const Handlers: Record<keyof typeof Commands, PacketHandler> = {
PunchPkt: handle_PunchPkt,
Close: notImpl,
@@ -95,52 +93,3 @@ const Handlers: Record<keyof typeof Commands, PacketHandler> = {
RlyHelloAck: notImpl, // always
RlyHelloAck2: notImpl, // if len >1??
};
const s = makeSession(
(session, msg, rinfo, options) => {
const ab = new Uint8Array(msg).buffer;
const dv = new DataView(ab);
const cmd = CommandsByValue[dv.readU16()];
if (options.debug) {
console.log(`<< ${cmd}`);
console.log(hexdump(msg.buffer, { ansi: options.ansi, ansiColor: 1 }));
}
Handlers[cmd](session, dv, rinfo);
},
(session) => {
const int = setInterval(() => {
let buf = new DataView(new Uint8Array(4).buffer);
create_LanSearch(buf);
session.broadcast(buf);
}, 1000);
},
{ debug: false, ansi: false },
);
let cur_image_index = 0;
const audioFd = createWriteStream(`captures/audio.pcm`);
s.eventEmitter.on("frame", (frame: Buffer) => {
const fname = `captures/${cur_image_index.toString().padStart(4, "0")}.jpg`;
let cur_image = createWriteStream(fname);
cur_image_index++;
cur_image.write(frame);
cur_image.close();
// console.log("got an entire frame", frame.length);
});
let i = 0;
s.eventEmitter.on("audio", (frame: Buffer) => {
audioFd.write(frame);
if (i == 20) {
const buf = SendDevStatus(s);
s.send(buf);
i = 0;
}
i++;
});
s.eventEmitter.on("connect", (name: string, rinfo: RemoteInfo) => {
console.log(`Connected to ${name} - ${rinfo.address}`);
s.outgoingCommandId = 0;
s.dst_ip = rinfo.address;
});