Claude: Fix
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doc/02_Measurements.md
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0
doc/02_Measurements.md
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@@ -25,8 +25,12 @@ configs:
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# Komplette go2rtc-Config eingebettet – keine separate Datei nötig.
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content: |
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streams:
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cam0: "ffmpeg:device?video=/dev/video0&video_size=640x480#video=h264#video=mjpeg"
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cam1: "ffmpeg:device?video=/dev/video2&video_size=640x480#video=h264#video=mjpeg"
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# Einfache Form: von go2rtc bestätigt funktionsfähig für beide Kameras.
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# device? wurde verworfen (generiert FFmpeg ohne -input_format mjpeg → Timeout).
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# #video=h264 → für WebRTC (transcodiert)
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# #video=mjpeg → für MJPEG-Fallback + /api/frame.jpeg (Snapshot)
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cam0: "ffmpeg:/dev/video0#video=h264#video=mjpeg"
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cam1: "ffmpeg:/dev/video2#video=h264#video=mjpeg"
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webrtc:
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listen: ":8555"
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candidates:
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@@ -1,18 +1,39 @@
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'use strict';
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// go2rtc-Player-Modi in Fallback-Reihenfolge.
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// webrtc zuerst (niedrigste Latenz), dann MSE, dann MJPEG – das verhindert
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// schwarze Seiten: schlägt WebRTC fehl, springt der Player automatisch weiter.
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// go2rtc Player-Modi – Fallback-Reihenfolge: WebRTC → MSE → MJPEG
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// Schlägt WebRTC fehl, springt der go2rtc-Player automatisch weiter → kein schwarzes Bild.
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const MODE = 'webrtc,mse,mjpeg';
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// ── Logging-Hilfe (sichtbar in Browser DevTools → Console) ──────────────────
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const LOG_PREFIX = '[AppRobotWebcam]';
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function log(cam, msg) { console.log(`${LOG_PREFIX}[${cam}] ${msg}`); }
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function warn(cam, msg) { console.warn(`${LOG_PREFIX}[${cam}] ⚠ ${msg}`); }
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function logErr(cam, msg, e) { console.error(`${LOG_PREFIX}[${cam}] ✗ ${msg}`, e ?? ''); }
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// ── Kamera-View aufbauen ─────────────────────────────────────────────────────
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function buildCamera(camId, container) {
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const wsUrl = `/api/ws?src=${encodeURIComponent(camId)}`;
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log(camId, `View erstellt mode=${MODE} ws=${wsUrl}`);
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const box = document.createElement('div');
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box.className = 'cam-box';
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// go2rtc Web-Component – verbindet sich relativ auf /api/ws (→ Node-Proxy)
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// go2rtc Web-Component: verbindet sich via WebSocket zu /api/ws (→ Node-Proxy → go2rtc)
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const stream = document.createElement('video-stream');
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stream.mode = MODE;
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stream.src = `/api/ws?src=${encodeURIComponent(camId)}`;
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// Events vom inneren <video>-Element abfangen (capture-Phase = vor dem Element selbst)
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stream.addEventListener('play', () => log(camId, '▶ spielt'), true);
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stream.addEventListener('playing', () => log(camId, '▶ Bild läuft'), true);
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stream.addEventListener('pause', () => warn(camId, 'pausiert'), true);
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stream.addEventListener('stalled', () => warn(camId, 'stalled (kein Daten)'), true);
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stream.addEventListener('waiting', () => warn(camId, 'waiting (Buffer leer)'), true);
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stream.addEventListener('error', (e) => logErr(camId, 'Video-Fehler', e), true);
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// src setzen startet die Verbindung
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log(camId, `Verbinde → ${wsUrl}`);
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stream.src = wsUrl;
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box.appendChild(stream);
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const label = document.createElement('div');
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@@ -25,6 +46,7 @@ function buildCamera(camId, container) {
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const snapBtn = document.createElement('button');
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snapBtn.textContent = 'Snapshot';
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snapBtn.onclick = () => {
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log(camId, 'Snapshot download → /api/snapshot/' + camId);
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const a = document.createElement('a');
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a.href = `/api/snapshot/${camId}`;
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a.download = `${camId}_${Date.now()}.jpg`;
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@@ -34,28 +56,63 @@ function buildCamera(camId, container) {
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box.appendChild(actions);
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container.appendChild(box);
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// Connectivity-Check nach 5 s: ist die WebSocket-Verbindung zu /api/ws nutzbar?
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setTimeout(async () => {
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try {
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const r = await fetch('/api/streams');
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if (r.ok) {
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const d = await r.json();
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log(camId, `go2rtc streams: ${Object.keys(d).join(', ')}`);
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} else {
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warn(camId, `/api/streams → HTTP ${r.status}`);
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}
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} catch (err) {
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logErr(camId, '/api/streams nicht erreichbar (Proxy defekt?)', err);
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}
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}, 5000);
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}
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// ── Init ─────────────────────────────────────────────────────────────────────
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async function init() {
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// Warten bis die go2rtc-Web-Component definiert ist (sonst greift der .src-Setter nicht)
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log('init', 'Starte...');
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// go2rtc Web-Component muss geladen sein bevor .src gesetzt wird
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try {
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await customElements.whenDefined('video-stream');
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log('init', '<video-stream> definiert');
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} catch (err) {
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logErr('init', '<video-stream> nicht geladen – /video-stream.js erreichbar?', err);
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return;
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}
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const container = document.getElementById('cameras');
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const statusText = document.getElementById('statusText');
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let cams = ['cam0', 'cam1']; // Fallback
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// Kamera-Liste von go2rtc (via Node-Proxy /api/snapshot → /api/streams)
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let cams = [];
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try {
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const r = await fetch('/api/snapshot');
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log('init', `/api/snapshot → HTTP ${r.status}`);
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const d = await r.json();
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if (Array.isArray(d.cameras) && d.cameras.length) {
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cams = d.cameras.map(c => c.id);
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log('init', `Kameras: ${cams.join(', ')}`);
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} else {
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warn('init', 'Keine Kameras in go2rtc – Config OK? go2rtc läuft?');
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}
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} catch (err) {
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console.warn('Kamera-Liste nicht abrufbar, nutze Fallback:', err.message);
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logErr('init', '/api/snapshot nicht erreichbar – Fallback cam0/cam1', err);
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}
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if (cams.length === 0) {
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warn('init', 'Fallback: nehme cam0 und cam1 an');
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cams = ['cam0', 'cam1'];
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}
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cams.forEach(id => buildCamera(id, container));
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statusText.textContent = `${cams.length} Kamera${cams.length !== 1 ? 's' : ''} · WebRTC`;
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log('init', 'Fertig');
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}
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init();
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@@ -37,7 +37,9 @@ const go2rtcProxy = createProxyMiddleware({
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target: GO2RTC_URL,
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changeOrigin: true,
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ws: true,
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pathFilter: ['/api/**', '/video-rtc.js', '/video-stream.js'],
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// Plain-Pfade: dürfen NICHT mit Globs (/api/**) gemischt werden (HPM v3)
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// '/api' matcht alles ab /api/... — kein ** nötig
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pathFilter: ['/api', '/video-rtc.js', '/video-stream.js'],
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logger: console,
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});
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app.use(go2rtcProxy);
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