Make streaming work & much more elegant

.gitignore

@@ -0,0 +1 @@
+node_modules/

app/camera/camera.controller.js

@@ -10,7 +10,6 @@ router.get('/', getById);
 router.put('/', update);
 router.delete('/', _delete);
 router.post('/osd', _osd);
-router.post('/stream', _stream);
 
 module.exports = router;
 
@@ -49,10 +48,3 @@ function _osd(req, res, next) {
         .then((socket) => res.json(socket))
         .catch(err => next(err));
 }
-
-function _stream(req, res, next) {
-    console.log("Stream Requester ip: " + req.ip);
-    cameraService.stream(req.body)
-        .then((streamPort) => res.json(streamPort))
-        .catch(err => next(err));
-}

app/camera/camera.service.js

@@ -1,6 +1,5 @@
 /*jshint esversion: 6 */
 const path = require('path');
-const Stream = require('../stream/videoStream');
 const db = require(path.resolve(__dirname, '../_helpers/db.js'));
 const mongoose = require('mongoose');
 const cameraHelper = require(path.resolve(__dirname, '../_helpers/cameraHelper.js'));
@@ -13,8 +12,7 @@ module.exports = {
     getById: _getById,
     update: _update,
     delete: _delete,
-    osd: _osd,
+    osd: _osd
-    stream: _stream
 };
 
 async function _getAll() {
@@ -101,27 +99,3 @@ async function _osd({id, option}) {
     }
     return await socket.sendCmd(id, osdHex);
 }
-
-async function _stream({id, width = 1920, height = 1080}) {
-    const camera = await Camera.findById(id).lean();
-
-    // In case a seperate user wants to reach same camera stream
-    let inUse;
-    try {
-        inUse = await cameraHelper.checkPortUse(camera.streamPort);
-    } catch(err) {
-        throw err;
-    }
-
-    if (!inUse) {
-        const stream = new Stream({
-            name: camera.name || "stream: " + camera.rtsp,
-            url: 'rtsp://' + camera.rtsp,
-            port: camera.streamPort,
-            width: width,
-            height: height
-        });
-        stream.start();
-    }
-    return camera.streamPort;
-}

app/config.json

@@ -1,4 +1,4 @@
 {
-    "connectionString": "mongodb://your-mongo-address/db-name",
+    "connectionString": "mongodb://localhost:27017/ptzoptics",
     "secret": "your db-secret"
 }

app/stream/mpeg1muxer.js

@@ -1,38 +0,0 @@
-/*jshint esversion: 6 */
-const ffmpegPath = require('@ffmpeg-installer/ffmpeg').path;
-const child_process = require('child_process');
-const EventEmitter = require('events');
-const spawn = require('cross-spawn');
-
-class Mpeg1Muxer extends EventEmitter {
-
-    constructor(options) {
-        super(options);
-
-        this.url = options.url;
-        this.width = options.width;
-        // this.stream = child_process.spawn(ffmpegPath, ['-y', '-loglevel', 'quiet', "-rtsp_transport", "tcp", "-i", this.url, '-vf', 'yadif', '-f', 'mpegts', '-r', '30',  '-codec:v', 'mpeg1video', '-codec:a', 'mp2', '-b:a', '128k', '-b:v', '4096k', '-muxdelay', '0', '-', './app/stream/stream.ts'], {
-        //     detached: false
-        // });
-        this.stream = child_process.spawn(ffmpegPath, ['-y', '-loglevel', 'quiet', "-rtsp_transport", "tcp", "-i", this.url, '-filter:v', 'scale=1280:-1', '-f', 'mpegts', '-r', '30',  '-codec:v', 'mpeg1video', '-codec:a', 'mp2', '-b:a', '128k', '-b:v', '1500k', '-', './app/stream/stream.ts'], {
-            detached: false
-        });
-
-        this.inputStreamStarted = true;
-        this.stream.stdout.on('data', (data) => { return this.emit('mpeg1data', data); });
-        this.stream.stderr.on('data', (data) => { return this.emit('ffmpegError', data); });
-    }
-
-    stop() {
-        try {
-            this.stream.stdout.removeAllListeners();
-        } catch(err) {
-            console.log("Muxer: " + err);
-        }
-
-        this.stream.kill();
-        this.stream = undefined;
-    }
-}
-
-module.exports = Mpeg1Muxer;

app/stream/stream.controller.js

@@ -0,0 +1,21 @@
+const path = require('path');
+const express = require('express');
+const router = express.Router();
+
+const db = require(path.resolve(__dirname, '../_helpers/db.js'));
+const Camera = db.Camera;
+
+const { proxy, scriptUrl } = require('rtsp-relay')(router);
+
+console.log(`Connecting to camera: rtsp://${Camera.rtsp}`);
+
+const handler = proxy({
+    url: `rtsp://10.0.1.3:554/1`,
+    // if your RTSP stream need credentials, include them in the URL as above
+    verbose: false,
+    additionalFlags: ['-q', '1']
+  });
+
+router.ws('/', handler);
+
+module.exports = router;

app/stream/videoStream.js

@@ -1,124 +0,0 @@
-/*jshint esversion: 6 */
-
-// Thanks to:  https://github.com/Wifsimster/node-rtsp-stream-es6
-const WebSocket = require('ws');
-const EventEmitter = require('events');
-const STREAM_MAGIC_BYTES = "jsmp";
-const Mpeg1Muxer = require('./mpeg1muxer');
-
-class VideoStream extends EventEmitter {
-
-    constructor(options) {
-        super(options);
-        this.name = options.name;
-        this.url = options.url;
-        this.width = options.width;
-        this.height = options.height;
-        this.port = options.port;
-        this.stream = void 0;
-        this.stream2Socket();
-    }
-
-    stream2Socket() {
-        this.server = new WebSocket.Server({
-            port: this.port
-        });
-        this.server.on('connection', (socket) => {
-            console.log(`New connection: ${this.name}`);
-            let streamHeader = new Buffer(8);
-            streamHeader.write(STREAM_MAGIC_BYTES);
-            streamHeader.writeUInt16BE(this.width, 4);
-            streamHeader.writeUInt16BE(this.height, 6);
-            socket.send(streamHeader);
-
-            socket.on('close', () => {
-                console.log(`${this.name} disconnected !`);
-                if (this.server.clients.length <= 0) {
-                    this.mpeg1Muxer.stop();
-                    this.server.close();
-                }
-            });
-        });
-
-        this.on('camdata', (data) => {
-            for (let i in this.server.clients) {
-                let client = this.server.clients[i];
-                if (client.readyState === WebSocket.OPEN) {
-                    client.send(data);
-                }
-            }
-        });
-    }
-
-    onSocketConnect(socket) {
-        let streamHeader = new Buffer(8);
-        streamHeader.write(STREAM_MAGIC_BYTES);
-        streamHeader.writeUInt16BE(this.width, 4);
-        streamHeader.writeUInt16BE(this.height, 6);
-        socket.send(streamHeader, {
-            binary: true
-        });
-        console.log(`New connection: ${this.name} - ${this.wsServer.clients.length} total`);
-        return socket.on("close", function(code, message) {
-            return console.log(`${this.name} disconnected - ${this.wsServer.clients.length} total`);
-        });
-    }
-
-    start() {
-        this.mpeg1Muxer = new Mpeg1Muxer({
-            url: this.url,
-            width: this.width
-        });
-        this.mpeg1Muxer.on('mpeg1data', (data) => {
-            return this.emit('camdata', data);
-        });
-
-        let gettingInputData = false;
-        let gettingOutputData = false;
-        let inputData = [];
-        let outputData = [];
-
-        this.mpeg1Muxer.on('ffmpegError', (data) => {
-            data = data.toString();
-            if (data.indexOf('Input #') !== -1) {
-                gettingInputData = true;
-            }
-            if (data.indexOf('Output #') !== -1) {
-                gettingInputData = false;
-                gettingOutputData = true;
-            }
-            if (data.indexOf('frame') === 0) {
-                gettingOutputData = false;
-            }
-            if (gettingInputData) {
-                inputData.push(data.toString());
-                let size = data.match(/\d+x\d+/);
-                if (size != null) {
-                    size = size[0].split('x');
-                    if (this.width == null) {
-                        this.width = parseInt(size[0], 10);
-                    }
-                    if (this.height == null) {
-                        return this.height = parseInt(size[1], 10);
-                    }
-                }
-            }
-        });
-        this.mpeg1Muxer.on('ffmpegError', (data) => {
-            return global.process.stderr.write(data);
-        });
-        return this;
-    }
-
-    stop(serverCloseCallback) {
-        this.server.close(serverCloseCallback);
-        this.server.removeAllListeners();
-        this.server = undefined;
-
-        this.mpeg1Muxer.stop();
-        this.mpeg1Muxer.removeAllListeners();
-        this.mpeg1Muxer = undefined;
-    }
-}
-
-module.exports = VideoStream;

package.json

@@ -21,6 +21,7 @@
     "mongoose": "^5.2.1",
     "nodemon": "^1.17.5",
     "path": "^0.12.7",
+    "rtsp-relay": "^1.6.1",
     "tcp-port-used": "^1.0.0",
     "ws": "1.1.1"
   }

pub/css/style.css

@@ -120,7 +120,7 @@ ul.nav {
     margin-left: auto;
 }
 #streamStage {
-    max-height: 100%;
+    /* max-height: 100%; */
     right: 0;
 }
 #msgStage {

pub/index.html

@@ -1,3 +1,5 @@
+<!DOCTYPE html>
+
 <html lang="en">
 
 <head>

pub/js/stream.js

@@ -8,13 +8,5 @@ function changeStream() {
 
 function startStream() {
     const canvas = document.getElementById('streamStage');
-    const payload = {
+    player = new JSMpeg.Player('ws://' + document.location.host + '/stream', {canvas:canvas});
-        width: window.innerWidth || document.documentElement.clientWidth || document.body.clientWidth,
-        height: window.innerHeight || document.documentElement.clientHeight || document.body.clientHeight
-    };
-
-    sendCmd('/camera/stream', 'POST', payload).then((camera) => {
-        const streamPort = JSON.parse(camera);
-        player = new JSMpeg.Player('ws://' + document.location.hostname + ':' + streamPort, {canvas:canvas});
-    });
 }

server.js

@@ -2,6 +2,7 @@
 const path = require('path');
 const express = require('express');
 const app = express();
+const expressWs = require('express-ws')(app);
 const cors = require('cors');
 const bodyParser = require('body-parser');
 const errorhandler = require(path.resolve( __dirname, 'app/_helpers/error-handler.js'));
@@ -20,8 +21,9 @@ app.get('/', (req, res) => {
 app.use('/camera', require(path.resolve( __dirname, 'app/camera/camera.controller.js')));
 app.use('/ptz', require(path.resolve( __dirname, 'app/ptz/ptz.controller.js')));
 app.use('/image', require(path.resolve( __dirname, 'app/image/image.controller.js')));
+app.use('/stream', require(path.resolve( __dirname, 'app/stream/stream.controller.js')));
 app.get('*', function(req, res){
-  res.send('what???', 404);
+  res.status(404).send('404 not found');
 });
 
 app.use(errorhandler);