Der Weg zur Tür ist etwas weit, um mal eben zu schauen was auf dem Hof los ist, habe ich die Idee einen Raspberry mit eigener Kamera einzusetzen. Viele andere Ansätze haben leider nicht wirklich zum Erfolg geführt. Und ganz nebenbei ist auch noch ein Abgreifen des Signals über den Browser möglich. Das ganze läuft mit HAP-NodJS Framework und motionEye.
Notwendig sind folgende Sachen:
- Raspberry Pi
- SD Karte mit einem aktuellen Raspbian
- Netzteil
- Raspberry Pi Camera Modul mit Flachbandkabel
Schritt 1
Raspberry Pi einrichten:
ssh, wifi, Kamera aktivieren, Memory Split auf mindestens 128MB
sudo modprobe bcm2835-v4l2
sudo reboot
Schritt 2
Installation:
Folgendes ausführen:
curl -sSL goo.gl/k8QMGm | bash
oder folgende Befehle abarbeiten:
cd /home/pi
sudo apt-get update
sudo apt-get remove node nodejs nodejs-legacy -y
sudo apt-get install git-core libnss-mdns libavahi-compat-libdnssd-dev -y
uname -m # bei armv6l folgendes
sudo wget http://node-arm.herokuapp.com/node_latest_armhf.deb
sudo dpkg -i node_latest_armhf.deb
sudo rm -rf node_latest_armhf.deb
sudo npm install -g n
sudo rm /usr/local/bin/node
sudo rm -rf /usr/local/lib/node_modules/npm
sudo n prune
sudo n 8.2.1
# ansonsten
sudo curl -sL https://deb.nodesource.com/setup_8.x | sudo -E bash -
sudo apt-get install nodejs -y
sudo npm install -g n
sudo rm /usr/local/bin/node
sudo rm -rf /usr/local/lib/node_modules/npm
sudo n prune
sudo n 8.2.1
# weiter im Text
sudo apt-get install gcc g++ make -y
sudo npm install -g node-gyp
sudo git clone --branch v0.4.27 https://github.com/KhaosT/HAP-NodeJS.git
cd HAP-NodeJS/
sudo rm -rf accessories/AirConditioner_accessory.js
sudo npm install
Schritt 3
motionEye installieren, dazu folgendes ausführen:
curl -sSL goo.gl/68K6gS | bash
Oder folgende Befehle abarbeiten:
cd /home/pi
sudo apt-get remove libavcodec-extra-57 libavformat57 libavresample2 libavutil55
sudo apt-get install libavutil55 libavformat57 libswscale3 -y
sudo apt-get install python-pip python-dev curl libssl-dev libcurl4-openssl-dev libmariadbclient18 libpq5 libjpeg8-dev mysql-common ffmpeg -y
sudo wget "https://github.com/Motion-Project/motion/releases/download/release-4.1/pi_stretch_motion_4.1-1_armhf.deb" #für Raspbian Stretch!
sudo dpkg -i pi_stretch_motion_4.1-1_armhf.deb
sudo rm -rf pi_stretch_motion_4.1-1_armhf.deb
sudo pip install motioneye
sudo mkdir -p /etc/motioneye
sudo cp /usr/local/share/motioneye/extra/motioneye.conf.sample /etc/motioneye/motioneye.conf
sudo mkdir -p /var/lib/motioneye
sudo cp /usr/local/share/motioneye/extra/motioneye.systemd-unit-local /etc/systemd/system/motioneye.service
sudo systemctl daemon-reload
sudo systemctl enable motioneye
sudo systemctl start motioneye
cd /home/pi/HAP-NodeJS
sudo npm install
sudo npm install node-cmd
sudo systemctl restart motioneye
cd /home/pi/HAP-NodeJS/lib/
sudo mv Camera.js OriginalCamera.bak
sudo wget https://goo.gl/VZZMYV -O Camera.js
Schritt 4
Kamera einrichten:
Im Browser die url des Raspberry Pis mit dem Port 8765 aufrufen, Anmeldung erfolgt als admin, ohne Passwort (Kann später geändert werden). Die Einrichtung der neuen Kamera erfolgt mit folgenden Parametern:
Camera type: Local MMAL Camera
Camera: VideoCore Camera
Schritt 5
Um das ganze zu automatisieren ist ein Autostart einzurichten:
cd ~
sudo npm install forever -g
sudo nano /start
Dort folgende Zeilen einsetzen und speichern:
sudo forever stopall
cd /home/pi/HAP-NodeJS
sudo forever start CameraCore.js
Anschließend folgendes ausführen:
sudo chmod +x /start
sudo nano /etc/rc.local
Und dort vor exit 0 folgendes einsetzen und speichern:
sudo sh /start
Abschließend einmal durchstarten. Jetzt kann die Kamera in Homekit eingebunden werden. Dazu in der Home App auf ‘+‘, ‘Gerät hinzufügen‘, ‘Code fehlt bzw. kann nicht gescannt werden?‘, Kamera auswählen und mit dem Code 031-45-154 einbinden. Fertig!
Quelle: https://raspberrytips.nl/raspberry-pi-homekit-camera/
Update von motionEye durch:
sudo pip install motioneye --upgrade
sudo systemctl restart motioneye
Als Anhang die modifizierte Camera.js (als Download im Skript oben enthalten):
'use strict';
var debug = require('debug')('Camera');
var inherits = require('util').inherits;
var EventEmitter = require('events').EventEmitter;
var clone = require('./util/clone').clone;
var uuid = require('./util/uuid');
var Service = require('./Service').Service;
var Characteristic = require('./Characteristic').Characteristic;
var StreamController = require('./StreamController').StreamController;
var HomeKitTypes = require('./gen/HomeKitTypes');
var fs = require('fs');
var ip = require('ip');
var spawn = require('child_process').spawn;
module.exports = {
Camera: Camera
};
function Camera() {
this.services = [];
this.streamControllers = [];
this.pendingSessions = {};
this.ongoingSessions = {};
let options = {
proxy: false, // Requires RTP/RTCP MUX Proxy
disable_audio_proxy: false, // If proxy = true, you can opt out audio proxy via this
srtp: true, // Supports SRTP AES_CM_128_HMAC_SHA1_80 encryption
video: {
resolutions: [
[1280, 720, 30],
[320, 240, 15]
],
codec: {
profiles: [0, 1, 2], // Enum, please refer StreamController.VideoCodecParamProfileIDTypes
levels: [0, 1, 2] // Enum, please refer StreamController.VideoCodecParamLevelTypes
}
},
audio: {
comfort_noise: false,
codecs: [
{
type: "OPUS", // Audio Codec
samplerate: 24 // 8, 16, 24 KHz
},
{
type: "AAC-eld",
samplerate: 16
}
]
}
}
this.createCameraControlService();
this._createStreamControllers(2, options);
}
Camera.prototype.handleSnapshotRequest = function(request, callback) {
// Image request: {width: number, height: number}
// Please override this and invoke callback(error, image buffer) when the snapshot is ready
let resolution = request.width + 'x' + request.height;
var ffmpegImageSource = "-i http://localhost:8765/picture/1/current/"
var imageSource = ffmpegImageSource !== undefined ? ffmpegImageSource : this.ffmpegSource;
let ffmpeg = spawn('ffmpeg', (imageSource + ' -t 1 -s '+ '1280x720' + ' -f image2 -').split(' '), {env: process.env});
var imageBuffer = Buffer(0);
ffmpeg.stdout.on('data', function(data) {
imageBuffer = Buffer.concat([imageBuffer, data]);
});
ffmpeg.on('close', function(code) {
callback(undefined, imageBuffer);
});
}
Camera.prototype.handleCloseConnection = function(connectionID) {
this.streamControllers.forEach(function(controller) {
controller.handleCloseConnection(connectionID);
});
}
Camera.prototype.prepareStream = function(request, callback) {
// Invoked when iOS device requires stream
var sessionInfo = {};
let sessionID = request["sessionID"];
let targetAddress = request["targetAddress"];
sessionInfo["address"] = targetAddress;
var response = {};
let
videoInfo = request["video"];
if (videoInfo) {
let targetPort = videoInfo["port"];
let srtp_key = videoInfo["srtp_key"];
let srtp_salt = videoInfo["srtp_salt"];
let videoResp = {
port: targetPort,
ssrc: 1,
srtp_key: srtp_key,
srtp_salt: srtp_salt
};
response["video"] = videoResp;
sessionInfo["video_port"] = targetPort;
sessionInfo["video_srtp"] = Buffer.concat([srtp_key, srtp_salt]);
sessionInfo["video_ssrc"] = 1;
}
let audioInfo = request["audio"];
if (audioInfo) {
let targetPort = audioInfo["port"];
let srtp_key = audioInfo["srtp_key"];
let srtp_salt = audioInfo["srtp_salt"];
let audioResp = {
port: targetPort,
ssrc: 1,
srtp_key: srtp_key,
srtp_salt: srtp_salt
};
response["audio"] = audioResp;
sessionInfo["audio_port"] = targetPort;
sessionInfo["audio_srtp"] = Buffer.concat([srtp_key, srtp_salt]);
sessionInfo["audio_ssrc"] = 1;
}
let currentAddress = ip.address();
var addressResp = {
address: currentAddress
};
if (ip.isV4Format(currentAddress)) {
addressResp["type"] = "v4";
} else {
addressResp["type"] = "v6";
}
response["address"] = addressResp;
this.pendingSessions[uuid.unparse(sessionID)] = sessionInfo;
callback(response);
}
Camera.prototype.handleStreamRequest = function(request) {
// Invoked when iOS device asks stream to start/stop/reconfigure
var sessionID = request["sessionID"];
var requestType = request["type"];
if (sessionID) {
let sessionIdentifier = uuid.unparse(sessionID);
if (requestType == "start") {
var sessionInfo = this.pendingSessions[sessionIdentifier];
if (sessionInfo) {
var width = 1024;
var height = 600;
var fps = 30;
var bitrate = 250;
let videoInfo = request["video"];
if (videoInfo) {
width = videoInfo["width"];
height = videoInfo["height"];
let expectedFPS = videoInfo["fps"];
if (expectedFPS < fps) {
fps = expectedFPS;
}
// bitrate = videoInfo["max_bit_rate"];
}
let targetAddress = sessionInfo["address"];
let targetVideoPort = sessionInfo["video_port"];
let videoKey = sessionInfo["video_srtp"];
let ffmpegCommand = '-re -i http://localhost:8081 -threads 0 -vcodec h264_omx -an -pix_fmt yuv420p -r '+ fps +' -f rawvideo -tune zerolatency -vf scale='+ width +':'+ height +' -b:v '+ bitrate +'k -bufsize '+ bitrate +'k -payload_type 99 -ssrc 1 -f rtp -srtp_out_suite AES_CM_128_HMAC_SHA1_80 -srtp_out_params '+videoKey.toString('base64')+' srtp://'+targetAddress+':'+targetVideoPort+'?rtcpport='+targetVideoPort+'&localrtcpport='+targetVideoPort+'&pkt_size=1378';
let ffmpeg = spawn('ffmpeg', ffmpegCommand.split(' '), {env: process.env});
this.ongoingSessions[sessionIdentifier] = ffmpeg;
}
delete this.pendingSessions[sessionIdentifier];
} else if (requestType == "stop") {
var ffmpegProcess = this.ongoingSessions[sessionIdentifier];
if (ffmpegProcess) {
ffmpegProcess.kill('SIGKILL');
}
delete this.ongoingSessions[sessionIdentifier];
}
}
}
Camera.prototype.createCameraControlService = function() {
var controlService = new Service.CameraControl();
// Developer can add control characteristics like rotation, night vision at here.
this.services.push(controlService);
}
// Private
Camera.prototype._createStreamControllers = function(maxStreams, options) {
let self = this;
for (var i = 0; i < maxStreams; i++) {
var streamController = new StreamController(i, options, self);
self.services.push(streamController.service);
self.streamControllers.push(streamController);
}
}
